find -type f | xargs sed -i 's/[\t ]$//g' # on most files

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162

find -type f | xargs sed -i 's/[\t ]$//g' # on most files
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
ths
1 parent bd494f4c
Showing 26 changed files with 666 additions and 666 deletions
Changelog
Makefile
Makefile.target
TODO
aes.c
alpha-dis.c
arm-dis.c
arm-semi.c
block-bochs.c
block-cloop.c
block-cow.c
block-dmg.c
block-qcow.c
block-qcow2.c
block-raw.c
block-vmdk.c
block-vpc.c
block-vvfat.c
block.c
block_int.h
@@ -86,7 +86,7 @@ version 0.8.0:
     (Johannes Schindelin)
 version 0.7.2:
-  
+ 
   - x86_64 fixes (Win2000 and Linux 2.6 boot in 32 bit)
   - merge self modifying code handling in dirty ram page mecanism.
   - MIPS fixes (Ralf Baechle)
@@ -135,7 +135,7 @@ version 0.6.1:
   - Mac OS X port (Pierre d'Herbemont)
   - Virtual console support
   - Better monitor line edition
-  - New block device layer 
+  - New block device layer
   - New 'qcow' growable disk image support with AES encryption and
     transparent decompression
   - VMware 3 and 4 read-only disk image support (untested)
@@ -201,7 +201,7 @@ version 0.5.5:
   - FDC fixes for Win98
 version 0.5.4:
-  
+ 
   - qemu-fast fixes
   - BIOS area protection fix (aka EMM386.EXE fix) (Mike Nordell)
   - keyboard/mouse fix (Mike Nordell)
@@ -228,7 +228,7 @@ version 0.5.3:
   - added accurate CR0.MP/ME/TS emulation
   - fixed DMA memory write access (Win95 boot floppy fix)
   - graphical x86 linux loader
-  - command line monitor 
+  - command line monitor
   - generic removable device support
   - support of CD-ROM change
   - multiple network interface support
@@ -266,7 +266,7 @@ version 0.5.2:
   - eflags optimisation fix for string operations
 version 0.5.1:
-  
+ 
   - float access fixes when using soft mmu
   - PC emulation support on PowerPC
   - A20 support
@@ -281,7 +281,7 @@ version 0.5.1:
   - Major SPARC target fixes (dynamically linked programs begin to work)
 version 0.5.0:
-  
+ 
   - full hardware level VGA emulation
   - graphical display with SDL
   - added PS/2 mouse and keyboard emulation
@@ -319,7 +319,7 @@ version 0.4.2:
  - SMP kernels can at least be booted
 version 0.4.1:
-  
+ 
  - more accurate timer support in vl.
  - more reliable NE2000 probe in vl.
  - added 2.5.66 kernel in vl-test.
@@ -405,7 +405,7 @@ version 0.1.3:
  - added bound, cmpxchg8b, cpuid instructions
  - added 16 bit addressing support/override for string operations
  - poll() fix
- 
+
 version 0.1.2:
  - compile fixes
@@ -40,7 +40,7 @@ dyngen$(EXESUF): dyngen.c
 clean:
 # avoid old build problems by removing potentially incorrect old files
-	rm -f config.mak config.h op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h 
+	rm -f config.mak config.h op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
 	rm -f *.o *.a $(TOOLS) dyngen$(EXESUF) TAGS cscope.* *.pod *~ */*~
 	$(MAKE) -C tests clean
 	for d in $(TARGET_DIRS); do \
@@ -89,7 +89,7 @@ endif
 test speed test2: all
 	$(MAKE) -C tests $@
-TAGS: 
+TAGS:
 	etags *.[ch] tests/*.[ch]
 cscope:
@@ -269,7 +269,7 @@ OBJS+= libqemu.a
 # cpu emulator library
 LIBOBJS=exec.o kqemu.o translate-op.o translate-all.o cpu-exec.o\
-        translate.o op.o 
+        translate.o op.o
 ifdef CONFIG_SOFTFLOAT
 LIBOBJS+=fpu/softfloat.o
 else
@@ -317,7 +317,7 @@ LIBOBJS+= op_helper.o helper.o alpha_palcode.o
 endif
 # NOTE: the disassembler code is only needed for debugging
-LIBOBJS+=disas.o 
+LIBOBJS+=disas.o
 ifeq ($(findstring i386, $(TARGET_ARCH) $(ARCH)),i386)
 USE_I386_DIS=y
 endif
@@ -483,7 +483,7 @@ VL_OBJS+= an5206.o mcf5206.o ptimer.o mcf_uart.o mcf_intc.o mcf5208.o mcf_fec.o
 VL_OBJS+= m68k-semi.o
 endif
 ifdef CONFIG_GDBSTUB
-VL_OBJS+=gdbstub.o 
+VL_OBJS+=gdbstub.o
 endif
 ifdef CONFIG_SDL
 VL_OBJS+=sdl.o x_keymap.o
@@ -511,7 +511,7 @@ ifdef CONFIG_STATIC
 VL_LDFLAGS+=-static
 endif
 ifndef CONFIG_SOFTMMU
-VL_LDFLAGS+=-Wl,-T,$(SRC_PATH)/i386-vl.ld 
+VL_LDFLAGS+=-Wl,-T,$(SRC_PATH)/i386-vl.ld
 endif
 ifndef CONFIG_DARWIN
 ifndef CONFIG_WIN32
@@ -561,7 +561,7 @@ depend: $(SRCS)
 vldepend: $(VL_OBJS:.o=.c)
 	$(CC) -MM $(CFLAGS) $(CPPFLAGS) $(BASE_CFLAGS) $^ 1>.depend
-# libqemu 
+# libqemu
 libqemu.a: $(LIBOBJS)
 	rm -f $@
@@ -665,7 +665,7 @@ $(OBJS) $(LIBOBJS) $(VL_OBJS): config.h ../config-host.h
 clean:
 	rm -f *.o  *.a *~ $(PROGS) gen-op.h opc.h op.h nwfpe/*.o slirp/*.o fpu/*.o
-install: all 
+install: all
 ifneq ($(PROGS),)
 	$(INSTALL) -m 755 -s $(PROGS) "$(DESTDIR)$(bindir)"
 endif
@@ -16,7 +16,7 @@ short term:
 - do not resize vga if invalid size.
 - avoid looping if only exceptions
 - TLB code protection support for PPC
-- see openMosix Doc 
+- see openMosix Doc
 - disable SMC handling for ARM/SPARC/PPC (not finished)
 - see undefined flags for BTx insn
 - user/kernel PUSHL/POPL in helper.c
 /**
- * 
+ *
  * aes.c - integrated in QEMU by Fabrice Bellard from the OpenSSL project.
  */
 /*
@@ -1267,7 +1267,7 @@ void AES_decrypt(const unsigned char *in, unsigned char *out,
 void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
 		     const unsigned long length, const AES_KEY *key,
-		     unsigned char *ivec, const int enc) 
+		     unsigned char *ivec, const int enc)
 {
 	unsigned long n;
@@ -1294,7 +1294,7 @@ void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
 			AES_encrypt(tmp, tmp, key);
 			memcpy(out, tmp, AES_BLOCK_SIZE);
 			memcpy(ivec, tmp, AES_BLOCK_SIZE);
-		}			
+		}		
 	} else {
 		while (len >= AES_BLOCK_SIZE) {
 			memcpy(tmp, in, AES_BLOCK_SIZE);
@@ -1312,6 +1312,6 @@ void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
 			for(n=0; n < len; ++n)
 				out[n] = tmp[n] ^ ivec[n];
 			memcpy(ivec, tmp, AES_BLOCK_SIZE);
-		}			
+		}		
 	}
 }
@@ -374,7 +374,7 @@ const struct alpha_operand alpha_operands[] =
   /* The signed "23-bit" aligned displacement of Branch format insns */
 #define BDISP		(MDISP + 1)
-  { 21, 0, BFD_RELOC_23_PCREL_S2, 
+  { 21, 0, BFD_RELOC_23_PCREL_S2,
     AXP_OPERAND_RELATIVE, insert_bdisp, extract_bdisp },
   /* The 26-bit PALcode function */
@@ -4,17 +4,17 @@
    Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
    Modification by James G. Smith (jsmith@cygnus.co.uk)
-This file is part of libopcodes. 
+This file is part of libopcodes.
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free
 Software Foundation; either version 2 of the License, or (at your option)
-any later version. 
+any later version.
 This program is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-more details. 
+more details.
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
@@ -34,7 +34,7 @@ struct thumb_opcode
 };
 /* format of the assembler string :
-   
+  
    %%			%
    %<bitfield>d		print the bitfield in decimal
    %<bitfield>x		print the bitfield in hex
@@ -104,7 +104,7 @@ static struct arm_opcode arm_opcodes[] =
     {0x0c400000, 0x0ff00fff, "mar%c\tacc0, %12-15r, %16-19r"},
     {0x0c500000, 0x0ff00fff, "mra%c\t%12-15r, %16-19r, acc0"},
     {0xf450f000, 0xfc70f000, "pld\t%a"},
-    
+   
     /* V5 Instructions.  */
     {0xe1200070, 0xfff000f0, "bkpt\t0x%16-19X%12-15X%8-11X%0-3X"},
     {0xfa000000, 0xfe000000, "blx\t%B"},
@@ -116,7 +116,7 @@ static struct arm_opcode arm_opcodes[] =
     {0xfe000010, 0xff100010, "mcr2\t%8-11d, %21-23d, %12-15r, cr%16-19d, cr%0-3d, {%5-7d}"},
     {0xfe100010, 0xff100010, "mrc2\t%8-11d, %21-23d, %12-15r, cr%16-19d, cr%0-3d, {%5-7d}"},
-    /* V5E "El Segundo" Instructions.  */    
+    /* V5E "El Segundo" Instructions.  */   
     {0x000000d0, 0x0e1000f0, "ldr%cd\t%12-15r, %s"},
     {0x000000f0, 0x0e1000f0, "str%cd\t%12-15r, %s"},
     {0x01000080, 0x0ff000f0, "smlabb%c\t%16-19r, %0-3r, %8-11r, %12-15r"},
@@ -303,7 +303,7 @@ static struct arm_opcode arm_opcodes[] =
     {0x0d100400, 0x0f500f00, "cfldrs%c\tmvf%12-15d, %A"},
     {0x0c100400, 0x0f500f00, "cfldrs%c\tmvf%12-15d, %A"},
     {0x0d500400, 0x0f500f00, "cfldrd%c\tmvd%12-15d, %A"},
-    {0x0c500400, 0x0f500f00, "cfldrd%c\tmvd%12-15d, %A"}, 
+    {0x0c500400, 0x0f500f00, "cfldrd%c\tmvd%12-15d, %A"},
     {0x0d100500, 0x0f500f00, "cfldr32%c\tmvfx%12-15d, %A"},
     {0x0c100500, 0x0f500f00, "cfldr32%c\tmvfx%12-15d, %A"},
     {0x0d500500, 0x0f500f00, "cfldr64%c\tmvdx%12-15d, %A"},
@@ -571,7 +571,7 @@ static boolean force_thumb = false;
 static char * arm_fp_const[] =
 {"0.0", "1.0", "2.0", "3.0", "4.0", "5.0", "0.5", "10.0"};
-static char * arm_shift[] = 
+static char * arm_shift[] =
 {"lsl", "lsr", "asr", "ror"};
 /* Forward declarations.  */
@@ -621,14 +621,14 @@ arm_decode_shift (given, func, stream)
      void * stream;
 {
   func (stream, "%s", arm_regnames[given & 0xf]);
-  
+ 
   if ((given & 0xff0) != 0)
     {
       if ((given & 0x10) == 0)
 	{
 	  int amount = (given & 0xf80) >> 7;
 	  int shift = (given & 0x60) >> 5;
-	  
+	 
 	  if (amount == 0)
 	    {
 	      if (shift == 3)
@@ -636,10 +636,10 @@ arm_decode_shift (given, func, stream)
 		  func (stream, ", rrx");
 		  return;
 		}
-	      
+	     
 	      amount = 32;
 	    }
-	  
+	 
 	  func (stream, ", %s #%d", arm_shift[shift], amount);
 	}
       else
@@ -666,7 +666,7 @@ print_insn_arm1 (pc, info, given)
       if ((given & insn->mask) == insn->value)
 	{
 	  char * c;
-	  
+	 
 	  for (c = insn->assembler; *c; c++)
 	    {
 	      if (*c == '%')
@@ -682,14 +682,14 @@ print_insn_arm1 (pc, info, given)
 			  && ((given & 0x02000000) == 0))
 			{
 			  int offset = given & 0xfff;
-			  
+			 
 			  func (stream, "[pc");
- 
+
 			  if (given & 0x01000000)
 			    {
 			      if ((given & 0x00800000) == 0)
 				offset = - offset;
-			  
+			 
 			      /* Pre-indexed.  */
 			      func (stream, ", #%d]", offset);
@@ -710,13 +710,13 @@ print_insn_arm1 (pc, info, given)
 			      /* ie ignore the offset.  */
 			      offset = pc + 8;
 			    }
-			  
+			 
 			  func (stream, "\t; ");
 			  info->print_address_func (offset, info);
 			}
 		      else
 			{
-			  func (stream, "[%s", 
+			  func (stream, "[%s",
 				arm_regnames[(given >> 16) & 0xf]);
 			  if ((given & 0x01000000) != 0)
 			    {
@@ -736,7 +736,7 @@ print_insn_arm1 (pc, info, given)
 				  arm_decode_shift (given, func, stream);
 				}
-			      func (stream, "]%s", 
+			      func (stream, "]%s",
 				    ((given & 0x00200000) != 0) ? "!" : "");
 			    }
 			  else
@@ -748,13 +748,13 @@ print_insn_arm1 (pc, info, given)
 				    func (stream, "], %s#%d",
 					  (((given & 0x00800000) == 0)
 					   ? "-" : ""), offset);
-				  else 
+				  else
 				    func (stream, "]");
 				}
 			      else
 				{
 				  func (stream, "], %s",
-					(((given & 0x00800000) == 0) 
+					(((given & 0x00800000) == 0)
 					 ? "-" : ""));
 				  arm_decode_shift (given, func, stream);
 				}
@@ -767,18 +767,18 @@ print_insn_arm1 (pc, info, given)
 			{
                           /* PC relative with immediate offset.  */
 			  int offset = ((given & 0xf00) >> 4) | (given & 0xf);
-			  
+			 
 			  if ((given & 0x00800000) == 0)
 			    offset = -offset;
-			  
+			 
 			  func (stream, "[pc, #%d]\t; ", offset);
-			  
+			 
 			  (*info->print_address_func)
 			    (offset + pc + 8, info);
 			}
 		      else
 			{
-			  func (stream, "[%s", 
+			  func (stream, "[%s",
 				arm_regnames[(given >> 16) & 0xf]);
 			  if ((given & 0x01000000) != 0)
 			    {
@@ -801,7 +801,7 @@ print_insn_arm1 (pc, info, given)
                                         arm_regnames[given & 0xf]);
 				}
-			      func (stream, "]%s", 
+			      func (stream, "]%s",
 				    ((given & 0x00200000) != 0) ? "!" : "");
 			    }
 			  else
@@ -815,7 +815,7 @@ print_insn_arm1 (pc, info, given)
 				    func (stream, "], %s#%d",
 					  (((given & 0x00800000) == 0)
 					   ? "-" : ""), offset);
-				  else 
+				  else
 				    func (stream, "]");
 				}
 			      else
@@ -829,7 +829,7 @@ print_insn_arm1 (pc, info, given)
 			    }
 			}
 		      break;
-			  
+			 
 		    case 'b':
 		      (*info->print_address_func)
 			(BDISP (given) * 4 + pc + 8, info);
@@ -911,7 +911,7 @@ print_insn_arm1 (pc, info, given)
 		      {
 			bfd_vma address;
 			bfd_vma offset = 0;
-			
+		
 			if (given & 0x00800000)
 			  /* Is signed, hi bits should be ones.  */
 			  offset = (-1) ^ 0x00ffffff;
@@ -920,7 +920,7 @@ print_insn_arm1 (pc, info, given)
 			offset += given & 0x00ffffff;
 			offset <<= 2;
 			address = offset + pc + 8;
-			
+		
 			if (given & 0x01000000)
 			  /* H bit allows addressing to 2-byte boundaries.  */
 			  address += 2;
@@ -976,7 +976,7 @@ print_insn_arm1 (pc, info, given)
 			  func (stream, "3");
 			}
 		      break;
-			
+		
 		    case 'P':
 		      switch (given & 0x00080080)
 			{
@@ -1028,7 +1028,7 @@ print_insn_arm1 (pc, info, given)
 			}
 		      break;
-		    case '0': case '1': case '2': case '3': case '4': 
+		    case '0': case '1': case '2': case '3': case '4':
 		    case '5': case '6': case '7': case '8': case '9':
 		      {
 			int bitstart = *c++ - '0';
@@ -1040,44 +1040,44 @@ print_insn_arm1 (pc, info, given)
 			  {
 			  case '-':
 			    c++;
-			    
+			   
 			    while (*c >= '0' && *c <= '9')
 			      bitend = (bitend * 10) + *c++ - '0';
-			    
+			   
 			    if (!bitend)
 			      abort ();
-			    
+			   
 			    switch (*c)
 			      {
 			      case 'r':
 				{
 				  long reg;
-				  
+				 
 				  reg = given >> bitstart;
 				  reg &= (2 << (bitend - bitstart)) - 1;
-				  
+				 
 				  func (stream, "%s", arm_regnames[reg]);
 				}
 				break;
 			      case 'd':
 				{
 				  long reg;
-				  
+				 
 				  reg = given >> bitstart;
 				  reg &= (2 << (bitend - bitstart)) - 1;
-				  
+				 
 				  func (stream, "%d", reg);
 				}
 				break;
 			      case 'x':
 				{
 				  long reg;
-				  
+				 
 				  reg = given >> bitstart;
 				  reg &= (2 << (bitend - bitstart)) - 1;
-				  
+				 
 				  func (stream, "0x%08x", reg);
-				  
+				 
 				  /* Some SWI instructions have special
 				     meanings.  */
 				  if ((given & 0x0fffffff) == 0x0FF00000)
@@ -1089,20 +1089,20 @@ print_insn_arm1 (pc, info, given)
 			      case 'X':
 				{
 				  long reg;
-				  
+				 
 				  reg = given >> bitstart;
 				  reg &= (2 << (bitend - bitstart)) - 1;
-				  
+				 
 				  func (stream, "%01x", reg & 0xf);
 				}
 				break;
 			      case 'f':
 				{
 				  long reg;
-				  
+				 
 				  reg = given >> bitstart;
 				  reg &= (2 << (bitend - bitstart)) - 1;
-				  
+				 
 				  if (reg > 7)
 				    func (stream, "#%s",
 					  arm_fp_const[reg & 7]);
@@ -1163,7 +1163,7 @@ print_insn_arm1 (pc, info, given)
 				    }
 				  break;
-				  
+				 
 				default:
 				  abort ();
 				}
@@ -1252,7 +1252,7 @@ print_insn_thumb (pc, info, given)
           if (!*c) /* Check for empty (not NULL) assembler string.  */
             {
 	      long offset;
-	      
+	     
 	      info->bytes_per_chunk = 4;
 	      info->bytes_per_line  = 4;
@@ -1274,16 +1274,16 @@ print_insn_thumb (pc, info, given)
             {
 	      info->bytes_per_chunk = 2;
 	      info->bytes_per_line  = 4;
-	  	      
+	  	     
               given &= 0xffff;
-	      
+	     
               for (; *c; c++)
                 {
                   if (*c == '%')
                     {
                       int domaskpc = 0;
                       int domasklr = 0;
-		      
+		     
                       switch (*++c)
                         {
                         case '%':
@@ -1293,11 +1293,11 @@ print_insn_thumb (pc, info, given)
                         case 'S':
                           {
                             long reg;
-			    
+			   
                             reg = (given >> 3) & 0x7;
                             if (given & (1 << 6))
                               reg += 8;
-			    
+			   
                             func (stream, "%s", arm_regnames[reg]);
                           }
                           break;
@@ -1305,11 +1305,11 @@ print_insn_thumb (pc, info, given)
                         case 'D':
                           {
                             long reg;
-			    
+			   
                             reg = given & 0x7;
                             if (given & (1 << 7))
                              reg += 8;
-			    
+			   
                             func (stream, "%s", arm_regnames[reg]);
                           }
                           break;
@@ -1331,9 +1331,9 @@ print_insn_thumb (pc, info, given)
                           {
                             int started = 0;
                             int reg;
-			    
+			   
                             func (stream, "{");
-			    
+			   
                             /* It would be nice if we could spot
                                ranges, and generate the rS-rE format: */
                             for (reg = 0; (reg < 8); reg++)
@@ -1365,12 +1365,12 @@ print_insn_thumb (pc, info, given)
                           break;
-                        case '0': case '1': case '2': case '3': case '4': 
+                        case '0': case '1': case '2': case '3': case '4':
                         case '5': case '6': case '7': case '8': case '9':
                           {
                             int bitstart = *c++ - '0';
                             int bitend = 0;
-			    
+			   
                             while (*c >= '0' && *c <= '9')
                               bitstart = (bitstart * 10) + *c++ - '0';
@@ -1379,7 +1379,7 @@ print_insn_thumb (pc, info, given)
                               case '-':
                                 {
                                   long reg;
-				  
+				 
                                   c++;
                                   while (*c >= '0' && *c <= '9')
                                     bitend = (bitend * 10) + *c++ - '0';
@@ -1478,11 +1478,11 @@ parse_arm_disassembler_option (option)
 {
   if (option == NULL)
     return;
-      
+     
   if (strneq (option, "reg-names-", 10))
     {
       int i;
-	
+
       option += 10;
       for (i = NUM_ARM_REGNAMES; i--;)
@@ -1491,7 +1491,7 @@ parse_arm_disassembler_option (option)
 	    regname_selected = i;
 	    break;
 	  }
-      
+     
       if (i < 0)
 	fprintf (stderr, _("Unrecognised register name set: %s\n"), option);
     }
@@ -1501,7 +1501,7 @@ parse_arm_disassembler_option (option)
     force_thumb = 0;
   else
     fprintf (stderr, _("Unrecognised disassembler option: %s\n"), option);
-  
+ 
   return;
 }
@@ -1512,7 +1512,7 @@ parse_disassembler_options (options)
      char * options;
 {
   char * space;
-  
+ 
   if (options == NULL)
     return;
@@ -1550,25 +1550,25 @@ print_insn_arm (pc, info)
   if (info->disassembler_options)
     {
       parse_disassembler_options (info->disassembler_options);
-      
+     
       /* To avoid repeated parsing of these options, we remove them here.  */
       info->disassembler_options = NULL;
     }
-  
+ 
   is_thumb = force_thumb;
   if (pc & 1)
     {
       is_thumb = 1;
       pc &= ~(bfd_vma) 1;
     }
-  
+ 
 #if 0
   if (!is_thumb && info->symbols != NULL)
     {
       if (bfd_asymbol_flavour (*info->symbols) == bfd_target_coff_flavour)
 	{
 	  coff_symbol_type * cs;
-	  
+	 
 	  cs = coffsymbol (*info->symbols);
 	  is_thumb = (   cs->native->u.syment.n_sclass == C_THUMBEXT
 		      || cs->native->u.syment.n_sclass == C_THUMBSTAT
@@ -1580,15 +1580,15 @@ print_insn_arm (pc, info)
 	{
 	  elf_symbol_type *  es;
 	  unsigned int       type;
-	  
+	 
 	  es = *(elf_symbol_type **)(info->symbols);
 	  type = ELF_ST_TYPE (es->internal_elf_sym.st_info);
-	  
+	 
 	  is_thumb = (type == STT_ARM_TFUNC) || (type == STT_ARM_16BIT);
 	}
     }
 #endif
-  
+ 
   little = (info->endian == BFD_ENDIAN_LITTLE);
   info->bytes_per_chunk = 4;
   info->display_endian  = little ? BFD_ENDIAN_LITTLE : BFD_ENDIAN_BIG;
@@ -1599,17 +1599,17 @@ print_insn_arm (pc, info)
       if (status != 0 && is_thumb)
 	{
 	  info->bytes_per_chunk = 2;
-	  
+	 
 	  status = info->read_memory_func (pc, (bfd_byte *) b, 2, info);
 	  b[3] = b[2] = 0;
 	}
-      
+     
       if (status != 0)
 	{
 	  info->memory_error_func (status, pc, info);
 	  return -1;
 	}
-      
+     
       given = (b[0]) | (b[1] << 8) | (b[2] << 16) | (b[3] << 24);
     }
   else
@@ -1621,13 +1621,13 @@ print_insn_arm (pc, info)
 	  info->memory_error_func (status, pc, info);
 	  return -1;
 	}
-      
+     
       if (is_thumb)
 	{
 	  if (pc & 0x2)
 	    {
 	      given = (b[2] << 8) | b[3];
-	      
+	     
 	      status = info->read_memory_func
 		((pc + 4) & ~ 0x3, (bfd_byte *) b, 4, info);
 	      if (status != 0)
@@ -1635,7 +1635,7 @@ print_insn_arm (pc, info)
 		  info->memory_error_func (status, pc + 4, info);
 		  return -1;
 		}
-	      
+	     
 	      given |= (b[0] << 24) | (b[1] << 16);
 	    }
 	  else
@@ -1644,7 +1644,7 @@ print_insn_arm (pc, info)
       else
 	given = (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | (b[3]);
     }
-  
+ 
   if (info->flags & INSN_HAS_RELOC)
     /* If the instruction has a reloc associated with it, then
        the offset field in the instruction will actually be the
@@ -1668,7 +1668,7 @@ print_arm_disassembler_options (FILE * stream)
   fprintf (stream, _("\n\
 The following ARM specific disassembler options are supported for use with\n\
 the -M switch:\n"));
-  
+ 
   for (i = NUM_ARM_REGNAMES; i--;)
     fprintf (stream, "  reg-names-%s %*c%s\n",
 	     regnames[i].name,
 /*
  *  Arm "Angel" semihosting syscalls
- * 
+ *
  *  Copyright (c) 2005, 2007 CodeSourcery.
  *  Written by Paul Brook.
  *
@@ -194,7 +194,7 @@ uint32_t do_arm_semihosting(CPUState *env)
                 return STDOUT_FILENO;
         }
         if (use_gdb_syscalls()) {
-            gdb_do_syscall(arm_semi_cb, "open,%s,%x,1a4", ARG(0), 
+            gdb_do_syscall(arm_semi_cb, "open,%s,%x,1a4", ARG(0),
 			   (int)ARG(2)+1, gdb_open_modeflags[ARG(1)]);
             return env->regs[0];
         } else {
@@ -283,7 +283,7 @@ uint32_t do_arm_semihosting(CPUState *env)
         }
     case SYS_FLEN:
         if (use_gdb_syscalls()) {
-            gdb_do_syscall(arm_semi_flen_cb, "fstat,%x,%x", 
+            gdb_do_syscall(arm_semi_flen_cb, "fstat,%x,%x",
 			   ARG(0), env->regs[13]-64);
             return env->regs[0];
         } else {
@@ -401,7 +401,7 @@ uint32_t do_arm_semihosting(CPUState *env)
                 }
                 ts->heap_limit = limit;
             }
-              
+             
             ptr = lock_user(ARG(0), 16, 0);
             ptr[0] = tswap32(ts->heap_base);
             ptr[1] = tswap32(ts->heap_limit);
 /*
  * Block driver for the various disk image formats used by Bochs
  * Currently only for "growing" type in read-only mode
- * 
+ *
  * Copyright (c) 2005 Alex Beregszaszi
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -44,7 +44,7 @@ struct bochs_header_v1 {
     char subtype[16]; // "Undoable" / "Volatile" / "Growing"
     uint32_t version;
     uint32_t header; // size of header
-    
+   
     union {
 	struct {
 	    uint32_t catalog; // num of entries
@@ -64,7 +64,7 @@ struct bochs_header {
     char subtype[16]; // "Undoable" / "Volatile" / "Growing"
     uint32_t version;
     uint32_t header; // size of header
-    
+   
     union {
 	struct {
 	    uint32_t catalog; // num of entries
@@ -83,9 +83,9 @@ typedef struct BDRVBochsState {
     uint32_t *catalog_bitmap;
     int catalog_size;
-    
+   
     int data_offset;
-    
+   
     int bitmap_blocks;
     int extent_blocks;
     int extent_size;
@@ -94,7 +94,7 @@ typedef struct BDRVBochsState {
 static int bochs_probe(const uint8_t *buf, int buf_size, const char *filename)
 {
     const struct bochs_header *bochs = (const void *)buf;
-    
+   
     if (buf_size < HEADER_SIZE)
 	return 0;
@@ -121,9 +121,9 @@ static int bochs_open(BlockDriverState *bs, const char *filename, int flags)
         if (fd < 0)
             return -1;
     }
-    
+   
     bs->read_only = 1; // no write support yet
-    
+   
     s->fd = fd;
     if (read(fd, &bochs, sizeof(bochs)) != sizeof(bochs)) {
@@ -161,7 +161,7 @@ static int bochs_open(BlockDriverState *bs, const char *filename, int flags)
     s->bitmap_blocks = 1 + (le32_to_cpu(bochs.extra.redolog.bitmap) - 1) / 512;
     s->extent_blocks = 1 + (le32_to_cpu(bochs.extra.redolog.extent) - 1) / 512;
-    
+   
     s->extent_size = le32_to_cpu(bochs.extra.redolog.extent);
     return 0;
@@ -180,7 +180,7 @@ static inline int seek_to_sector(BlockDriverState *bs, int64_t sector_num)
     // seek to sector
     extent_index = offset / s->extent_size;
     extent_offset = (offset % s->extent_size) / 512;
-    
+   
     if (s->catalog_bitmap[extent_index] == 0xffffffff)
     {
 //	fprintf(stderr, "page not allocated [%x - %x:%x]\n",
@@ -191,17 +191,17 @@ static inline int seek_to_sector(BlockDriverState *bs, int64_t sector_num)
     bitmap_offset = s->data_offset + (512 * s->catalog_bitmap[extent_index] *
 	(s->extent_blocks + s->bitmap_blocks));
     block_offset = bitmap_offset + (512 * (s->bitmap_blocks + extent_offset));
-    
+   
 //    fprintf(stderr, "sect: %x [ext i: %x o: %x] -> %x bitmap: %x block: %x\n",
 //	sector_num, extent_index, extent_offset,
 //	le32_to_cpu(s->catalog_bitmap[extent_index]),
 //	bitmap_offset, block_offset);
-    
+   
     // read in bitmap for current extent
     lseek(s->fd, bitmap_offset + (extent_offset / 8), SEEK_SET);
-    
+   
     read(s->fd, &bitmap_entry, 1);
-    
+   
     if (!((bitmap_entry >> (extent_offset % 8)) & 1))
     {
 //	fprintf(stderr, "sector (%x) in bitmap not allocated\n",
@@ -210,11 +210,11 @@ static inline int seek_to_sector(BlockDriverState *bs, int64_t sector_num)
     }
     lseek(s->fd, block_offset, SEEK_SET);
-    
+   
     return 0;
 }
-static int bochs_read(BlockDriverState *bs, int64_t sector_num, 
+static int bochs_read(BlockDriverState *bs, int64_t sector_num,
                     uint8_t *buf, int nb_sectors)
 {
     BDRVBochsState *s = bs->opaque;
 /*
  * QEMU Block driver for CLOOP images
- * 
+ *
  * Copyright (c) 2004 Johannes E. Schindelin
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -96,7 +96,7 @@ cloop_close:
     if(inflateInit(&s->zstream) != Z_OK)
 	goto cloop_close;
     s->current_block=s->n_blocks;
-    
+   
     s->sectors_per_block = s->block_size/512;
     bs->total_sectors = s->n_blocks*s->sectors_per_block;
     return 0;
@@ -107,12 +107,12 @@ static inline int cloop_read_block(BDRVCloopState *s,int block_num)
     if(s->current_block != block_num) {
 	int ret;
         uint32_t bytes = s->offsets[block_num+1]-s->offsets[block_num];
-	    
+	   
 	lseek(s->fd, s->offsets[block_num], SEEK_SET);
         ret = read(s->fd, s->compressed_block, bytes);
-        if (ret != bytes) 
+        if (ret != bytes)
             return -1;
-	
+
 	s->zstream.next_in = s->compressed_block;
 	s->zstream.avail_in = bytes;
 	s->zstream.next_out = s->uncompressed_block;
@@ -123,13 +123,13 @@ static inline int cloop_read_block(BDRVCloopState *s,int block_num)
 	ret = inflate(&s->zstream, Z_FINISH);
 	if(ret != Z_STREAM_END || s->zstream.total_out != s->block_size)
 	    return -1;
-	
+
 	s->current_block = block_num;
     }
     return 0;
 }
-static int cloop_read(BlockDriverState *bs, int64_t sector_num, 
+static int cloop_read(BlockDriverState *bs, int64_t sector_num,
                     uint8_t *buf, int nb_sectors)
 {
     BDRVCloopState *s = bs->opaque;
 /*
  * Block driver for the COW format
- * 
+ *
  * Copyright (c) 2004 Fabrice Bellard
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -56,7 +56,7 @@ static int cow_probe(const uint8_t *buf, int buf_size, const char *filename)
     if (buf_size >= sizeof(struct cow_header_v2) &&
         be32_to_cpu(cow_header->magic) == COW_MAGIC &&
-        be32_to_cpu(cow_header->version) == COW_VERSION) 
+        be32_to_cpu(cow_header->version) == COW_VERSION)
         return 100;
     else
         return 0;
@@ -85,18 +85,18 @@ static int cow_open(BlockDriverState *bs, const char *filename, int flags)
         be32_to_cpu(cow_header.version) != COW_VERSION) {
         goto fail;
     }
-        
+       
     /* cow image found */
     size = be64_to_cpu(cow_header.size);
     bs->total_sectors = size / 512;
-    pstrcpy(bs->backing_file, sizeof(bs->backing_file), 
+    pstrcpy(bs->backing_file, sizeof(bs->backing_file),
             cow_header.backing_file);
-    
+   
     /* mmap the bitmap */
     s->cow_bitmap_size = ((bs->total_sectors + 7) >> 3) + sizeof(cow_header);
-    s->cow_bitmap_addr = mmap(get_mmap_addr(s->cow_bitmap_size), 
-                              s->cow_bitmap_size, 
+    s->cow_bitmap_addr = mmap(get_mmap_addr(s->cow_bitmap_size),
+                              s->cow_bitmap_size,
                               PROT_READ | PROT_WRITE,
                               MAP_SHARED, s->fd, 0);
     if (s->cow_bitmap_addr == MAP_FAILED)
@@ -143,24 +143,24 @@ static inline int is_changed(uint8_t *bitmap,
     return changed;
 }
-static int cow_is_allocated(BlockDriverState *bs, int64_t sector_num, 
+static int cow_is_allocated(BlockDriverState *bs, int64_t sector_num,
                             int nb_sectors, int *pnum)
 {
     BDRVCowState *s = bs->opaque;
     return is_changed(s->cow_bitmap, sector_num, nb_sectors, pnum);
 }
-static int cow_read(BlockDriverState *bs, int64_t sector_num, 
+static int cow_read(BlockDriverState *bs, int64_t sector_num,
                     uint8_t *buf, int nb_sectors)
 {
     BDRVCowState *s = bs->opaque;
     int ret, n;
-    
+   
     while (nb_sectors > 0) {
         if (is_changed(s->cow_bitmap, sector_num, nb_sectors, &n)) {
             lseek(s->fd, s->cow_sectors_offset + sector_num * 512, SEEK_SET);
             ret = read(s->fd, buf, n * 512);
-            if (ret != n * 512) 
+            if (ret != n * 512)
                 return -1;
         } else {
             if (bs->backing_hd) {
@@ -179,15 +179,15 @@ static int cow_read(BlockDriverState *bs, int64_t sector_num,
     return 0;
 }
-static int cow_write(BlockDriverState *bs, int64_t sector_num, 
+static int cow_write(BlockDriverState *bs, int64_t sector_num,
                      const uint8_t *buf, int nb_sectors)
 {
     BDRVCowState *s = bs->opaque;
     int ret, i;
-    
+   
     lseek(s->fd, s->cow_sectors_offset + sector_num * 512, SEEK_SET);
     ret = write(s->fd, buf, nb_sectors * 512);
-    if (ret != nb_sectors * 512) 
+    if (ret != nb_sectors * 512)
         return -1;
     for (i = 0; i < nb_sectors; i++)
         cow_set_bit(s->cow_bitmap, sector_num + i);
@@ -211,7 +211,7 @@ static int cow_create(const char *filename, int64_t image_sectors,
     if (flags)
         return -ENOTSUP;
-    cow_fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 
+    cow_fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY,
               0644);
     if (cow_fd < 0)
         return -1;
 /*
  * QEMU Block driver for DMG images
- * 
+ *
  * Copyright (c) 2004 Johannes E. Schindelin
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -28,7 +28,7 @@
 typedef struct BDRVDMGState {
     int fd;
-    
+   
     /* each chunk contains a certain number of sectors,
      * offsets[i] is the offset in the .dmg file,
      * lengths[i] is the length of the compressed chunk,
@@ -86,7 +86,7 @@ static int dmg_open(BlockDriverState *bs, const char *filename, int flags)
     bs->read_only = 1;
     s->n_chunks = 0;
     s->offsets = s->lengths = s->sectors = s->sectorcounts = 0;
-    
+   
     /* read offset of info blocks */
     if(lseek(s->fd,-0x1d8,SEEK_END)<0) {
 dmg_close:
@@ -167,7 +167,7 @@ dmg_close:
 	goto dmg_close;
     s->current_chunk = s->n_chunks;
-    
+   
     return 0;
 }
@@ -227,7 +227,7 @@ static inline int dmg_read_chunk(BDRVDMGState *s,int sector_num)
 	    if (ret != s->lengths[chunk])
 		return -1;
-	
+
 	    s->zstream.next_in = s->compressed_chunk;
 	    s->zstream.avail_in = s->lengths[chunk];
 	    s->zstream.next_out = s->uncompressed_chunk;
@@ -253,7 +253,7 @@ static inline int dmg_read_chunk(BDRVDMGState *s,int sector_num)
     return 0;
 }
-static int dmg_read(BlockDriverState *bs, int64_t sector_num, 
+static int dmg_read(BlockDriverState *bs, int64_t sector_num,
                     uint8_t *buf, int nb_sectors)
 {
     BDRVDMGState *s = bs->opaque;
 /*
  * Block driver for the QCOW format
- * 
+ *
  * Copyright (c) 2004-2006 Fabrice Bellard
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -80,10 +80,10 @@ static int decompress_cluster(BDRVQcowState *s, uint64_t cluster_offset);
 static int qcow_probe(const uint8_t *buf, int buf_size, const char *filename)
 {
     const QCowHeader *cow_header = (const void *)buf;
-    
+   
     if (buf_size >= sizeof(QCowHeader) &&
         be32_to_cpu(cow_header->magic) == QCOW_MAGIC &&
-        be32_to_cpu(cow_header->version) == QCOW_VERSION) 
+        be32_to_cpu(cow_header->version) == QCOW_VERSION)
         return 100;
     else
         return 0;
@@ -108,7 +108,7 @@ static int qcow_open(BlockDriverState *bs, const char *filename, int flags)
     be64_to_cpus(&header.size);
     be32_to_cpus(&header.crypt_method);
     be64_to_cpus(&header.l1_table_offset);
-    
+   
     if (header.magic != QCOW_MAGIC || header.version != QCOW_VERSION)
         goto fail;
     if (header.size <= 1 || header.cluster_bits < 9)
@@ -134,7 +134,7 @@ static int qcow_open(BlockDriverState *bs, const char *filename, int flags)
     s->l1_table = qemu_malloc(s->l1_size * sizeof(uint64_t));
     if (!s->l1_table)
         goto fail;
-    if (bdrv_pread(s->hd, s->l1_table_offset, s->l1_table, s->l1_size * sizeof(uint64_t)) != 
+    if (bdrv_pread(s->hd, s->l1_table_offset, s->l1_table, s->l1_size * sizeof(uint64_t)) !=
         s->l1_size * sizeof(uint64_t))
         goto fail;
     for(i = 0;i < s->l1_size; i++) {
@@ -151,7 +151,7 @@ static int qcow_open(BlockDriverState *bs, const char *filename, int flags)
     if (!s->cluster_data)
         goto fail;
     s->cluster_cache_offset = -1;
-    
+   
     /* read the backing file name */
     if (header.backing_file_offset != 0) {
         len = header.backing_file_size;
@@ -177,7 +177,7 @@ static int qcow_set_key(BlockDriverState *bs, const char *key)
     BDRVQcowState *s = bs->opaque;
     uint8_t keybuf[16];
     int len, i;
-    
+   
     memset(keybuf, 0, 16);
     len = strlen(key);
     if (len > 16)
@@ -231,7 +231,7 @@ static void encrypt_sectors(BDRVQcowState *s, int64_t sector_num,
     for(i = 0; i < nb_sectors; i++) {
         ivec.ll[0] = cpu_to_le64(sector_num);
         ivec.ll[1] = 0;
-        AES_cbc_encrypt(in_buf, out_buf, 512, key, 
+        AES_cbc_encrypt(in_buf, out_buf, 512, key,
                         ivec.b, enc);
         sector_num++;
         in_buf += 512;
@@ -248,7 +248,7 @@ static void encrypt_sectors(BDRVQcowState *s, int64_t sector_num,
  *
  * 2 to allocate a compressed cluster of size
  * 'compressed_size'. 'compressed_size' must be > 0 and <
- * cluster_size 
+ * cluster_size
  *
  * return 0 if not allocated.
  */
@@ -262,7 +262,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
     uint64_t l2_offset, *l2_table, cluster_offset, tmp;
     uint32_t min_count;
     int new_l2_table;
-    
+   
     l1_index = offset >> (s->l2_bits + s->cluster_bits);
     l2_offset = s->l1_table[l1_index];
     new_l2_table = 0;
@@ -276,7 +276,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
         /* update the L1 entry */
         s->l1_table[l1_index] = l2_offset;
         tmp = cpu_to_be64(l2_offset);
-        if (bdrv_pwrite(s->hd, s->l1_table_offset + l1_index * sizeof(tmp), 
+        if (bdrv_pwrite(s->hd, s->l1_table_offset + l1_index * sizeof(tmp),
                         &tmp, sizeof(tmp)) != sizeof(tmp))
             return 0;
         new_l2_table = 1;
@@ -309,7 +309,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
             s->l2_size * sizeof(uint64_t))
             return 0;
     } else {
-        if (bdrv_pread(s->hd, l2_offset, l2_table, s->l2_size * sizeof(uint64_t)) != 
+        if (bdrv_pread(s->hd, l2_offset, l2_table, s->l2_size * sizeof(uint64_t)) !=
             s->l2_size * sizeof(uint64_t))
             return 0;
     }
@@ -318,7 +318,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
  found:
     l2_index = (offset >> s->cluster_bits) & (s->l2_size - 1);
     cluster_offset = be64_to_cpu(l2_table[l2_index]);
-    if (!cluster_offset || 
+    if (!cluster_offset ||
         ((cluster_offset & QCOW_OFLAG_COMPRESSED) && allocate == 1)) {
         if (!allocate)
             return 0;
@@ -331,54 +331,54 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
             if (decompress_cluster(s, cluster_offset) < 0)
                 return 0;
             cluster_offset = bdrv_getlength(s->hd);
-            cluster_offset = (cluster_offset + s->cluster_size - 1) & 
+            cluster_offset = (cluster_offset + s->cluster_size - 1) &
                 ~(s->cluster_size - 1);
             /* write the cluster content */
-            if (bdrv_pwrite(s->hd, cluster_offset, s->cluster_cache, s->cluster_size) != 
+            if (bdrv_pwrite(s->hd, cluster_offset, s->cluster_cache, s->cluster_size) !=
                 s->cluster_size)
                 return -1;
         } else {
             cluster_offset = bdrv_getlength(s->hd);
             if (allocate == 1) {
                 /* round to cluster size */
-                cluster_offset = (cluster_offset + s->cluster_size - 1) & 
+                cluster_offset = (cluster_offset + s->cluster_size - 1) &
                     ~(s->cluster_size - 1);
                 bdrv_truncate(s->hd, cluster_offset + s->cluster_size);
                 /* if encrypted, we must initialize the cluster
                    content which won't be written */
-                if (s->crypt_method && 
+                if (s->crypt_method &&
                     (n_end - n_start) < s->cluster_sectors) {
                     uint64_t start_sect;
                     start_sect = (offset & ~(s->cluster_size - 1)) >> 9;
                     memset(s->cluster_data + 512, 0x00, 512);
                     for(i = 0; i < s->cluster_sectors; i++) {
                         if (i < n_start || i >= n_end) {
-                            encrypt_sectors(s, start_sect + i, 
-                                            s->cluster_data, 
+                            encrypt_sectors(s, start_sect + i,
+                                            s->cluster_data,
                                             s->cluster_data + 512, 1, 1,
                                             &s->aes_encrypt_key);
-                            if (bdrv_pwrite(s->hd, cluster_offset + i * 512, 
+                            if (bdrv_pwrite(s->hd, cluster_offset + i * 512,
                                             s->cluster_data, 512) != 512)
                                 return -1;
                         }
                     }
                 }
             } else {
-                cluster_offset |= QCOW_OFLAG_COMPRESSED | 
+                cluster_offset |= QCOW_OFLAG_COMPRESSED |
                     (uint64_t)compressed_size << (63 - s->cluster_bits);
             }
         }
         /* update L2 table */
         tmp = cpu_to_be64(cluster_offset);
         l2_table[l2_index] = tmp;
-        if (bdrv_pwrite(s->hd, 
+        if (bdrv_pwrite(s->hd,
                         l2_offset + l2_index * sizeof(tmp), &tmp, sizeof(tmp)) != sizeof(tmp))
             return 0;
     }
     return cluster_offset;
 }
-static int qcow_is_allocated(BlockDriverState *bs, int64_t sector_num, 
+static int qcow_is_allocated(BlockDriverState *bs, int64_t sector_num,
                              int nb_sectors, int *pnum)
 {
     BDRVQcowState *s = bs->opaque;
@@ -420,7 +420,7 @@ static int decompress_buffer(uint8_t *out_buf, int out_buf_size,
     inflateEnd(strm);
     return 0;
 }
-                              
+                             
 static int decompress_cluster(BDRVQcowState *s, uint64_t cluster_offset)
 {
     int ret, csize;
@@ -431,7 +431,7 @@ static int decompress_cluster(BDRVQcowState *s, uint64_t cluster_offset)
         csize = cluster_offset >> (63 - s->cluster_bits);
         csize &= (s->cluster_size - 1);
         ret = bdrv_pread(s->hd, coffset, s->cluster_data, csize);
-        if (ret != csize) 
+        if (ret != csize)
             return -1;
         if (decompress_buffer(s->cluster_cache, s->cluster_size,
                               s->cluster_data, csize) < 0) {
@@ -444,13 +444,13 @@ static int decompress_cluster(BDRVQcowState *s, uint64_t cluster_offset)
 #if 0
-static int qcow_read(BlockDriverState *bs, int64_t sector_num, 
+static int qcow_read(BlockDriverState *bs, int64_t sector_num,
                      uint8_t *buf, int nb_sectors)
 {
     BDRVQcowState *s = bs->opaque;
     int ret, index_in_cluster, n;
     uint64_t cluster_offset;
-    
+   
     while (nb_sectors > 0) {
         cluster_offset = get_cluster_offset(bs, sector_num << 9, 0, 0, 0, 0);
         index_in_cluster = sector_num & (s->cluster_sectors - 1);
@@ -472,10 +472,10 @@ static int qcow_read(BlockDriverState *bs, int64_t sector_num,
             memcpy(buf, s->cluster_cache + index_in_cluster * 512, 512 * n);
         } else {
             ret = bdrv_pread(s->hd, cluster_offset + index_in_cluster * 512, buf, n * 512);
-            if (ret != n * 512) 
+            if (ret != n * 512)
                 return -1;
             if (s->crypt_method) {
-                encrypt_sectors(s, sector_num, buf, buf, n, 0, 
+                encrypt_sectors(s, sector_num, buf, buf, n, 0,
                                 &s->aes_decrypt_key);
             }
         }
@@ -487,32 +487,32 @@ static int qcow_read(BlockDriverState *bs, int64_t sector_num,
 }
 #endif
-static int qcow_write(BlockDriverState *bs, int64_t sector_num, 
+static int qcow_write(BlockDriverState *bs, int64_t sector_num,
                      const uint8_t *buf, int nb_sectors)
 {
     BDRVQcowState *s = bs->opaque;
     int ret, index_in_cluster, n;
     uint64_t cluster_offset;
-    
+   
     while (nb_sectors > 0) {
         index_in_cluster = sector_num & (s->cluster_sectors - 1);
         n = s->cluster_sectors - index_in_cluster;
         if (n > nb_sectors)
             n = nb_sectors;
-        cluster_offset = get_cluster_offset(bs, sector_num << 9, 1, 0, 
-                                            index_in_cluster, 
+        cluster_offset = get_cluster_offset(bs, sector_num << 9, 1, 0,
+                                            index_in_cluster,
                                             index_in_cluster + n);
         if (!cluster_offset)
             return -1;
         if (s->crypt_method) {
             encrypt_sectors(s, sector_num, s->cluster_data, buf, n, 1,
                             &s->aes_encrypt_key);
-            ret = bdrv_pwrite(s->hd, cluster_offset + index_in_cluster * 512, 
+            ret = bdrv_pwrite(s->hd, cluster_offset + index_in_cluster * 512,
                               s->cluster_data, n * 512);
         } else {
             ret = bdrv_pwrite(s->hd, cluster_offset + index_in_cluster * 512, buf, n * 512);
         }
-        if (ret != n * 512) 
+        if (ret != n * 512)
             return -1;
         nb_sectors -= n;
         sector_num += n;
@@ -529,7 +529,7 @@ typedef struct QCowAIOCB {
     int nb_sectors;
     int n;
     uint64_t cluster_offset;
-    uint8_t *cluster_data; 
+    uint8_t *cluster_data;
     BlockDriverAIOCB *hd_aiocb;
 } QCowAIOCB;
@@ -556,8 +556,8 @@ static void qcow_aio_read_cb(void *opaque, int ret)
         /* nothing to do */
     } else {
         if (s->crypt_method) {
-            encrypt_sectors(s, acb->sector_num, acb->buf, acb->buf, 
-                            acb->n, 0, 
+            encrypt_sectors(s, acb->sector_num, acb->buf, acb->buf,
+                            acb->n, 0,
                             &s->aes_decrypt_key);
         }
     }
@@ -572,9 +572,9 @@ static void qcow_aio_read_cb(void *opaque, int ret)
         qemu_aio_release(acb);
         return;
     }
-    
+   
     /* prepare next AIO request */
-    acb->cluster_offset = get_cluster_offset(bs, acb->sector_num << 9, 
+    acb->cluster_offset = get_cluster_offset(bs, acb->sector_num << 9,
                                              0, 0, 0, 0);
     index_in_cluster = acb->sector_num & (s->cluster_sectors - 1);
     acb->n = s->cluster_sectors - index_in_cluster;
@@ -597,7 +597,7 @@ static void qcow_aio_read_cb(void *opaque, int ret)
         /* add AIO support for compressed blocks ? */
         if (decompress_cluster(s, acb->cluster_offset) < 0)
             goto fail;
-        memcpy(acb->buf, 
+        memcpy(acb->buf,
                s->cluster_cache + index_in_cluster * 512, 512 * acb->n);
         goto redo;
     } else {
@@ -606,7 +606,7 @@ static void qcow_aio_read_cb(void *opaque, int ret)
             goto fail;
         }
         acb->hd_aiocb = bdrv_aio_read(s->hd,
-                            (acb->cluster_offset >> 9) + index_in_cluster, 
+                            (acb->cluster_offset >> 9) + index_in_cluster,
                             acb->buf, acb->n, qcow_aio_read_cb, acb);
         if (acb->hd_aiocb == NULL)
             goto fail;
@@ -627,7 +627,7 @@ static BlockDriverAIOCB *qcow_aio_read(BlockDriverState *bs,
     acb->buf = buf;
     acb->nb_sectors = nb_sectors;
     acb->n = 0;
-    acb->cluster_offset = 0;    
+    acb->cluster_offset = 0;   
     qcow_aio_read_cb(acb, 0);
     return &acb->common;
@@ -661,13 +661,13 @@ static void qcow_aio_write_cb(void *opaque, int ret)
         qemu_aio_release(acb);
         return;
     }
-    
+   
     index_in_cluster = acb->sector_num & (s->cluster_sectors - 1);
     acb->n = s->cluster_sectors - index_in_cluster;
     if (acb->n > acb->nb_sectors)
         acb->n = acb->nb_sectors;
-    cluster_offset = get_cluster_offset(bs, acb->sector_num << 9, 1, 0, 
-                                        index_in_cluster, 
+    cluster_offset = get_cluster_offset(bs, acb->sector_num << 9, 1, 0,
+                                        index_in_cluster,
                                         index_in_cluster + acb->n);
     if (!cluster_offset || (cluster_offset & 511) != 0) {
         ret = -EIO;
@@ -681,15 +681,15 @@ static void qcow_aio_write_cb(void *opaque, int ret)
                 goto fail;
             }
         }
-        encrypt_sectors(s, acb->sector_num, acb->cluster_data, acb->buf, 
+        encrypt_sectors(s, acb->sector_num, acb->cluster_data, acb->buf,
                         acb->n, 1, &s->aes_encrypt_key);
         src_buf = acb->cluster_data;
     } else {
         src_buf = acb->buf;
     }
     acb->hd_aiocb = bdrv_aio_write(s->hd,
-                                   (cluster_offset >> 9) + index_in_cluster, 
-                                   src_buf, acb->n, 
+                                   (cluster_offset >> 9) + index_in_cluster,
+                                   src_buf, acb->n,
                                    qcow_aio_write_cb, acb);
     if (acb->hd_aiocb == NULL)
         goto fail;
@@ -701,7 +701,7 @@ static BlockDriverAIOCB *qcow_aio_write(BlockDriverState *bs,
 {
     BDRVQcowState *s = bs->opaque;
     QCowAIOCB *acb;
-    
+   
     s->cluster_cache_offset = -1; /* disable compressed cache */
     acb = qemu_aio_get(bs, cb, opaque);
@@ -712,7 +712,7 @@ static BlockDriverAIOCB *qcow_aio_write(BlockDriverState *bs,
     acb->buf = (uint8_t *)buf;
     acb->nb_sectors = nb_sectors;
     acb->n = 0;
-    
+   
     qcow_aio_write_cb(acb, 0);
     return &acb->common;
 }
@@ -774,7 +774,7 @@ static int qcow_create(const char *filename, int64_t total_size,
     } else {
         header.crypt_method = cpu_to_be32(QCOW_CRYPT_NONE);
     }
-    
+   
     /* write all the data */
     write(fd, &header, sizeof(header));
     if (backing_file) {
@@ -811,7 +811,7 @@ static int qcow_make_empty(BlockDriverState *bs)
 /* XXX: put compressed sectors first, then all the cluster aligned
    tables to avoid losing bytes in alignment */
-static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num, 
+static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num,
                                  const uint8_t *buf, int nb_sectors)
 {
     BDRVQcowState *s = bs->opaque;
@@ -830,7 +830,7 @@ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num,
     /* best compression, small window, no zlib header */
     memset(&strm, 0, sizeof(strm));
     ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION,
-                       Z_DEFLATED, -12, 
+                       Z_DEFLATED, -12,
                        9, Z_DEFAULT_STRATEGY);
     if (ret != 0) {
         qemu_free(out_buf);
@@ -856,7 +856,7 @@ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num,
         /* could not compress: write normal cluster */
         qcow_write(bs, sector_num, buf, s->cluster_sectors);
     } else {
-        cluster_offset = get_cluster_offset(bs, sector_num << 9, 2, 
+        cluster_offset = get_cluster_offset(bs, sector_num << 9, 2,
                                             out_len, 0, 0);
         cluster_offset &= s->cluster_offset_mask;
         if (bdrv_pwrite(s->hd, cluster_offset, out_buf, out_len) != out_len) {
@@ -864,7 +864,7 @@ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num,
             return -1;
         }
     }
-    
+   
     qemu_free(out_buf);
     return 0;
 }
 /*
  * Block driver for the QCOW version 2 format
- * 
+ *
  * Copyright (c) 2004-2006 Fabrice Bellard
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -34,10 +34,10 @@
   - Memory management by reference counts.
   - Clusters which have a reference count of one have the bit
     QCOW_OFLAG_COPIED to optimize write performance.
-  - Size of compressed clusters is stored in sectors to reduce bit usage 
+  - Size of compressed clusters is stored in sectors to reduce bit usage
     in the cluster offsets.
   - Support for storing additional data (such as the VM state) in the
-    snapshots.  
+    snapshots. 
   - If a backing store is used, the cluster size is not constrained
     (could be backported to QCOW).
   - L2 tables have always a size of one cluster.
@@ -45,7 +45,7 @@
 //#define DEBUG_ALLOC
 //#define DEBUG_ALLOC2
- 
+
 #define QCOW_MAGIC (('Q' << 24) | ('F' << 16) | ('I' << 8) | 0xfb)
 #define QCOW_VERSION 2
@@ -152,22 +152,22 @@ typedef struct BDRVQcowState {
 } BDRVQcowState;
 static int decompress_cluster(BDRVQcowState *s, uint64_t cluster_offset);
-static int qcow_read(BlockDriverState *bs, int64_t sector_num, 
+static int qcow_read(BlockDriverState *bs, int64_t sector_num,
                      uint8_t *buf, int nb_sectors);
 static int qcow_read_snapshots(BlockDriverState *bs);
 static void qcow_free_snapshots(BlockDriverState *bs);
 static int refcount_init(BlockDriverState *bs);
 static void refcount_close(BlockDriverState *bs);
 static int get_refcount(BlockDriverState *bs, int64_t cluster_index);
-static int update_cluster_refcount(BlockDriverState *bs, 
+static int update_cluster_refcount(BlockDriverState *bs,
                                    int64_t cluster_index,
                                    int addend);
-static void update_refcount(BlockDriverState *bs, 
-                            int64_t offset, int64_t length, 
+static void update_refcount(BlockDriverState *bs,
+                            int64_t offset, int64_t length,
                             int addend);
 static int64_t alloc_clusters(BlockDriverState *bs, int64_t size);
 static int64_t alloc_bytes(BlockDriverState *bs, int size);
-static void free_clusters(BlockDriverState *bs, 
+static void free_clusters(BlockDriverState *bs,
                           int64_t offset, int64_t size);
 #ifdef DEBUG_ALLOC
 static void check_refcounts(BlockDriverState *bs);
@@ -176,10 +176,10 @@ static void check_refcounts(BlockDriverState *bs);
 static int qcow_probe(const uint8_t *buf, int buf_size, const char *filename)
 {
     const QCowHeader *cow_header = (const void *)buf;
-    
+   
     if (buf_size >= sizeof(QCowHeader) &&
         be32_to_cpu(cow_header->magic) == QCOW_MAGIC &&
-        be32_to_cpu(cow_header->version) == QCOW_VERSION) 
+        be32_to_cpu(cow_header->version) == QCOW_VERSION)
         return 100;
     else
         return 0;
@@ -209,11 +209,11 @@ static int qcow_open(BlockDriverState *bs, const char *filename, int flags)
     be32_to_cpus(&header.refcount_table_clusters);
     be64_to_cpus(&header.snapshots_offset);
     be32_to_cpus(&header.nb_snapshots);
-    
+   
     if (header.magic != QCOW_MAGIC || header.version != QCOW_VERSION)
         goto fail;
-    if (header.size <= 1 || 
-        header.cluster_bits < 9 || 
+    if (header.size <= 1 ||
+        header.cluster_bits < 9 ||
         header.cluster_bits > 16)
         goto fail;
     if (header.crypt_method > QCOW_CRYPT_AES)
@@ -231,7 +231,7 @@ static int qcow_open(BlockDriverState *bs, const char *filename, int flags)
     s->csize_mask = (1 << (s->cluster_bits - 8)) - 1;
     s->cluster_offset_mask = (1LL << s->csize_shift) - 1;
     s->refcount_table_offset = header.refcount_table_offset;
-    s->refcount_table_size = 
+    s->refcount_table_size =
         header.refcount_table_clusters << (s->cluster_bits - 3);
     s->snapshots_offset = header.snapshots_offset;
@@ -249,7 +249,7 @@ static int qcow_open(BlockDriverState *bs, const char *filename, int flags)
     s->l1_table = qemu_malloc(s->l1_size * sizeof(uint64_t));
     if (!s->l1_table)
         goto fail;
-    if (bdrv_pread(s->hd, s->l1_table_offset, s->l1_table, s->l1_size * sizeof(uint64_t)) != 
+    if (bdrv_pread(s->hd, s->l1_table_offset, s->l1_table, s->l1_size * sizeof(uint64_t)) !=
         s->l1_size * sizeof(uint64_t))
         goto fail;
     for(i = 0;i < s->l1_size; i++) {
@@ -267,7 +267,7 @@ static int qcow_open(BlockDriverState *bs, const char *filename, int flags)
     if (!s->cluster_data)
         goto fail;
     s->cluster_cache_offset = -1;
-    
+   
     if (refcount_init(bs) < 0)
         goto fail;
@@ -304,7 +304,7 @@ static int qcow_set_key(BlockDriverState *bs, const char *key)
     BDRVQcowState *s = bs->opaque;
     uint8_t keybuf[16];
     int len, i;
-    
+   
     memset(keybuf, 0, 16);
     len = strlen(key);
     if (len > 16)
@@ -358,7 +358,7 @@ static void encrypt_sectors(BDRVQcowState *s, int64_t sector_num,
     for(i = 0; i < nb_sectors; i++) {
         ivec.ll[0] = cpu_to_le64(sector_num);
         ivec.ll[1] = 0;
-        AES_cbc_encrypt(in_buf, out_buf, 512, key, 
+        AES_cbc_encrypt(in_buf, out_buf, 512, key,
                         ivec.b, enc);
         sector_num++;
         in_buf += 512;
@@ -379,12 +379,12 @@ static int copy_sectors(BlockDriverState *bs, uint64_t start_sect,
     if (ret < 0)
         return ret;
     if (s->crypt_method) {
-        encrypt_sectors(s, start_sect + n_start, 
-                        s->cluster_data, 
+        encrypt_sectors(s, start_sect + n_start,
+                        s->cluster_data,
                         s->cluster_data, n, 1,
                         &s->aes_encrypt_key);
     }
-    ret = bdrv_write(s->hd, (cluster_offset >> 9) + n_start, 
+    ret = bdrv_write(s->hd, (cluster_offset >> 9) + n_start,
                      s->cluster_data, n);
     if (ret < 0)
         return ret;
@@ -451,7 +451,7 @@ static int grow_l1_table(BlockDriverState *bs, int min_size)
     /* write new table (align to cluster) */
     new_l1_table_offset = alloc_clusters(bs, new_l1_size2);
-    
+   
     for(i = 0; i < s->l1_size; i++)
         new_l1_table[i] = cpu_to_be64(new_l1_table[i]);
     ret = bdrv_pwrite(s->hd, new_l1_table_offset, new_l1_table, new_l1_size2);
@@ -459,7 +459,7 @@ static int grow_l1_table(BlockDriverState *bs, int min_size)
         goto fail;
     for(i = 0; i < s->l1_size; i++)
         new_l1_table[i] = be64_to_cpu(new_l1_table[i]);
-    
+   
     /* set new table */
     data64 = cpu_to_be64(new_l1_table_offset);
     if (bdrv_pwrite(s->hd, offsetof(QCowHeader, l1_table_offset),
@@ -489,7 +489,7 @@ static int grow_l1_table(BlockDriverState *bs, int min_size)
  *
  * 2 to allocate a compressed cluster of size
  * 'compressed_size'. 'compressed_size' must be > 0 and <
- * cluster_size 
+ * cluster_size
  *
  * return 0 if not allocated.
  */
@@ -501,7 +501,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
     BDRVQcowState *s = bs->opaque;
     int min_index, i, j, l1_index, l2_index, ret;
     uint64_t l2_offset, *l2_table, cluster_offset, tmp, old_l2_offset;
-    
+   
     l1_index = offset >> (s->l2_bits + s->cluster_bits);
     if (l1_index >= s->l1_size) {
         /* outside l1 table is allowed: we grow the table if needed */
@@ -521,7 +521,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
         /* update the L1 entry */
         s->l1_table[l1_index] = l2_offset | QCOW_OFLAG_COPIED;
         tmp = cpu_to_be64(l2_offset | QCOW_OFLAG_COPIED);
-        if (bdrv_pwrite(s->hd, s->l1_table_offset + l1_index * sizeof(tmp), 
+        if (bdrv_pwrite(s->hd, s->l1_table_offset + l1_index * sizeof(tmp),
                         &tmp, sizeof(tmp)) != sizeof(tmp))
             return 0;
         min_index = l2_cache_new_entry(bs);
@@ -530,12 +530,12 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
         if (old_l2_offset == 0) {
             memset(l2_table, 0, s->l2_size * sizeof(uint64_t));
         } else {
-            if (bdrv_pread(s->hd, old_l2_offset, 
+            if (bdrv_pread(s->hd, old_l2_offset,
                            l2_table, s->l2_size * sizeof(uint64_t)) !=
                 s->l2_size * sizeof(uint64_t))
                 return 0;
         }
-        if (bdrv_pwrite(s->hd, l2_offset, 
+        if (bdrv_pwrite(s->hd, l2_offset,
                         l2_table, s->l2_size * sizeof(uint64_t)) !=
             s->l2_size * sizeof(uint64_t))
             return 0;
@@ -563,7 +563,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
         /* not found: load a new entry in the least used one */
         min_index = l2_cache_new_entry(bs);
         l2_table = s->l2_cache + (min_index << s->l2_bits);
-        if (bdrv_pread(s->hd, l2_offset, l2_table, s->l2_size * sizeof(uint64_t)) != 
+        if (bdrv_pread(s->hd, l2_offset, l2_table, s->l2_size * sizeof(uint64_t)) !=
             s->l2_size * sizeof(uint64_t))
             return 0;
     }
@@ -581,7 +581,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
         /* free the cluster */
         if (cluster_offset & QCOW_OFLAG_COMPRESSED) {
             int nb_csectors;
-            nb_csectors = ((cluster_offset >> s->csize_shift) & 
+            nb_csectors = ((cluster_offset >> s->csize_shift) &
                            s->csize_mask) + 1;
             free_clusters(bs, (cluster_offset & s->cluster_offset_mask) & ~511,
                           nb_csectors * 512);
@@ -600,7 +600,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
            written */
         if ((n_end - n_start) < s->cluster_sectors) {
             uint64_t start_sect;
-            
+           
             start_sect = (offset & ~(s->cluster_size - 1)) >> 9;
             ret = copy_sectors(bs, start_sect,
                                cluster_offset, 0, n_start);
@@ -615,22 +615,22 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
     } else {
         int nb_csectors;
         cluster_offset = alloc_bytes(bs, compressed_size);
-        nb_csectors = ((cluster_offset + compressed_size - 1) >> 9) - 
+        nb_csectors = ((cluster_offset + compressed_size - 1) >> 9) -
             (cluster_offset >> 9);
-        cluster_offset |= QCOW_OFLAG_COMPRESSED | 
+        cluster_offset |= QCOW_OFLAG_COMPRESSED |
             ((uint64_t)nb_csectors << s->csize_shift);
         /* compressed clusters never have the copied flag */
         tmp = cpu_to_be64(cluster_offset);
     }
     /* update L2 table */
     l2_table[l2_index] = tmp;
-    if (bdrv_pwrite(s->hd, 
+    if (bdrv_pwrite(s->hd,
                     l2_offset + l2_index * sizeof(tmp), &tmp, sizeof(tmp)) != sizeof(tmp))
         return 0;
     return cluster_offset;
 }
-static int qcow_is_allocated(BlockDriverState *bs, int64_t sector_num, 
+static int qcow_is_allocated(BlockDriverState *bs, int64_t sector_num,
                              int nb_sectors, int *pnum)
 {
     BDRVQcowState *s = bs->opaque;
@@ -672,7 +672,7 @@ static int decompress_buffer(uint8_t *out_buf, int out_buf_size,
     inflateEnd(strm);
     return 0;
 }
-                              
+                             
 static int decompress_cluster(BDRVQcowState *s, uint64_t cluster_offset)
 {
     int ret, csize, nb_csectors, sector_offset;
@@ -697,7 +697,7 @@ static int decompress_cluster(BDRVQcowState *s, uint64_t cluster_offset)
 }
 /* handle reading after the end of the backing file */
-static int backing_read1(BlockDriverState *bs, 
+static int backing_read1(BlockDriverState *bs,
                          int64_t sector_num, uint8_t *buf, int nb_sectors)
 {
     int n1;
@@ -711,13 +711,13 @@ static int backing_read1(BlockDriverState *bs,
     return n1;
 }
-static int qcow_read(BlockDriverState *bs, int64_t sector_num, 
+static int qcow_read(BlockDriverState *bs, int64_t sector_num,
                      uint8_t *buf, int nb_sectors)
 {
     BDRVQcowState *s = bs->opaque;
     int ret, index_in_cluster, n, n1;
     uint64_t cluster_offset;
-    
+   
     while (nb_sectors > 0) {
         cluster_offset = get_cluster_offset(bs, sector_num << 9, 0, 0, 0, 0);
         index_in_cluster = sector_num & (s->cluster_sectors - 1);
@@ -742,10 +742,10 @@ static int qcow_read(BlockDriverState *bs, int64_t sector_num,
             memcpy(buf, s->cluster_cache + index_in_cluster * 512, 512 * n);
         } else {
             ret = bdrv_pread(s->hd, cluster_offset + index_in_cluster * 512, buf, n * 512);
-            if (ret != n * 512) 
+            if (ret != n * 512)
                 return -1;
             if (s->crypt_method) {
-                encrypt_sectors(s, sector_num, buf, buf, n, 0, 
+                encrypt_sectors(s, sector_num, buf, buf, n, 0,
                                 &s->aes_decrypt_key);
             }
         }
@@ -756,32 +756,32 @@ static int qcow_read(BlockDriverState *bs, int64_t sector_num,
     return 0;
 }
-static int qcow_write(BlockDriverState *bs, int64_t sector_num, 
+static int qcow_write(BlockDriverState *bs, int64_t sector_num,
                      const uint8_t *buf, int nb_sectors)
 {
     BDRVQcowState *s = bs->opaque;
     int ret, index_in_cluster, n;
     uint64_t cluster_offset;
-    
+   
     while (nb_sectors > 0) {
         index_in_cluster = sector_num & (s->cluster_sectors - 1);
         n = s->cluster_sectors - index_in_cluster;
         if (n > nb_sectors)
             n = nb_sectors;
-        cluster_offset = get_cluster_offset(bs, sector_num << 9, 1, 0, 
-                                            index_in_cluster, 
+        cluster_offset = get_cluster_offset(bs, sector_num << 9, 1, 0,
+                                            index_in_cluster,
                                             index_in_cluster + n);
         if (!cluster_offset)
             return -1;
         if (s->crypt_method) {
             encrypt_sectors(s, sector_num, s->cluster_data, buf, n, 1,
                             &s->aes_encrypt_key);
-            ret = bdrv_pwrite(s->hd, cluster_offset + index_in_cluster * 512, 
+            ret = bdrv_pwrite(s->hd, cluster_offset + index_in_cluster * 512,
                               s->cluster_data, n * 512);
         } else {
             ret = bdrv_pwrite(s->hd, cluster_offset + index_in_cluster * 512, buf, n * 512);
         }
-        if (ret != n * 512) 
+        if (ret != n * 512)
             return -1;
         nb_sectors -= n;
         sector_num += n;
@@ -798,7 +798,7 @@ typedef struct QCowAIOCB {
     int nb_sectors;
     int n;
     uint64_t cluster_offset;
-    uint8_t *cluster_data; 
+    uint8_t *cluster_data;
     BlockDriverAIOCB *hd_aiocb;
 } QCowAIOCB;
@@ -825,8 +825,8 @@ static void qcow_aio_read_cb(void *opaque, int ret)
         /* nothing to do */
     } else {
         if (s->crypt_method) {
-            encrypt_sectors(s, acb->sector_num, acb->buf, acb->buf, 
-                            acb->n, 0, 
+            encrypt_sectors(s, acb->sector_num, acb->buf, acb->buf,
+                            acb->n, 0,
                             &s->aes_decrypt_key);
         }
     }
@@ -841,9 +841,9 @@ static void qcow_aio_read_cb(void *opaque, int ret)
         qemu_aio_release(acb);
         return;
     }
-    
+   
     /* prepare next AIO request */
-    acb->cluster_offset = get_cluster_offset(bs, acb->sector_num << 9, 
+    acb->cluster_offset = get_cluster_offset(bs, acb->sector_num << 9,
                                              0, 0, 0, 0);
     index_in_cluster = acb->sector_num & (s->cluster_sectors - 1);
     acb->n = s->cluster_sectors - index_in_cluster;
@@ -853,10 +853,10 @@ static void qcow_aio_read_cb(void *opaque, int ret)
     if (!acb->cluster_offset) {
         if (bs->backing_hd) {
             /* read from the base image */
-            n1 = backing_read1(bs->backing_hd, acb->sector_num, 
+            n1 = backing_read1(bs->backing_hd, acb->sector_num,
                                acb->buf, acb->n);
             if (n1 > 0) {
-                acb->hd_aiocb = bdrv_aio_read(bs->backing_hd, acb->sector_num, 
+                acb->hd_aiocb = bdrv_aio_read(bs->backing_hd, acb->sector_num,
                                     acb->buf, acb->n, qcow_aio_read_cb, acb);
                 if (acb->hd_aiocb == NULL)
                     goto fail;
@@ -872,7 +872,7 @@ static void qcow_aio_read_cb(void *opaque, int ret)
         /* add AIO support for compressed blocks ? */
         if (decompress_cluster(s, acb->cluster_offset) < 0)
             goto fail;
-        memcpy(acb->buf, 
+        memcpy(acb->buf,
                s->cluster_cache + index_in_cluster * 512, 512 * acb->n);
         goto redo;
     } else {
@@ -881,7 +881,7 @@ static void qcow_aio_read_cb(void *opaque, int ret)
             goto fail;
         }
         acb->hd_aiocb = bdrv_aio_read(s->hd,
-                            (acb->cluster_offset >> 9) + index_in_cluster, 
+                            (acb->cluster_offset >> 9) + index_in_cluster,
                             acb->buf, acb->n, qcow_aio_read_cb, acb);
         if (acb->hd_aiocb == NULL)
             goto fail;
@@ -948,13 +948,13 @@ static void qcow_aio_write_cb(void *opaque, int ret)
         qemu_aio_release(acb);
         return;
     }
-    
+   
     index_in_cluster = acb->sector_num & (s->cluster_sectors - 1);
     acb->n = s->cluster_sectors - index_in_cluster;
     if (acb->n > acb->nb_sectors)
         acb->n = acb->nb_sectors;
-    cluster_offset = get_cluster_offset(bs, acb->sector_num << 9, 1, 0, 
-                                        index_in_cluster, 
+    cluster_offset = get_cluster_offset(bs, acb->sector_num << 9, 1, 0,
+                                        index_in_cluster,
                                         index_in_cluster + acb->n);
     if (!cluster_offset || (cluster_offset & 511) != 0) {
         ret = -EIO;
@@ -968,15 +968,15 @@ static void qcow_aio_write_cb(void *opaque, int ret)
                 goto fail;
             }
         }
-        encrypt_sectors(s, acb->sector_num, acb->cluster_data, acb->buf, 
+        encrypt_sectors(s, acb->sector_num, acb->cluster_data, acb->buf,
                         acb->n, 1, &s->aes_encrypt_key);
         src_buf = acb->cluster_data;
     } else {
         src_buf = acb->buf;
     }
     acb->hd_aiocb = bdrv_aio_write(s->hd,
-                                   (cluster_offset >> 9) + index_in_cluster, 
-                                   src_buf, acb->n, 
+                                   (cluster_offset >> 9) + index_in_cluster,
+                                   src_buf, acb->n,
                                    qcow_aio_write_cb, acb);
     if (acb->hd_aiocb == NULL)
         goto fail;
@@ -988,13 +988,13 @@ static BlockDriverAIOCB *qcow_aio_write(BlockDriverState *bs,
 {
     BDRVQcowState *s = bs->opaque;
     QCowAIOCB *acb;
-    
+   
     s->cluster_cache_offset = -1; /* disable compressed cache */
     acb = qcow_aio_setup(bs, sector_num, (uint8_t*)buf, nb_sectors, cb, opaque);
     if (!acb)
         return NULL;
-    
+   
     qcow_aio_write_cb(acb, 0);
     return &acb->common;
 }
@@ -1038,7 +1038,7 @@ static void create_refcount_update(QCowCreateState *s,
     start = offset & ~(s->cluster_size - 1);
     last = (offset + size - 1)  & ~(s->cluster_size - 1);
-    for(cluster_offset = start; cluster_offset <= last; 
+    for(cluster_offset = start; cluster_offset <= last;
         cluster_offset += s->cluster_size) {
         p = &s->refcount_block[cluster_offset >> s->cluster_bits];
         refcount = be16_to_cpu(*p);
@@ -1054,7 +1054,7 @@ static int qcow_create(const char *filename, int64_t total_size,
     QCowHeader header;
     uint64_t tmp, offset;
     QCowCreateState s1, *s = &s1;
-    
+   
     memset(s, 0, sizeof(*s));
     fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
@@ -1096,7 +1096,7 @@ static int qcow_create(const char *filename, int64_t total_size,
     s->refcount_block = qemu_mallocz(s->cluster_size);
     if (!s->refcount_block)
         goto fail;
-    
+   
     s->refcount_table_offset = offset;
     header.refcount_table_offset = cpu_to_be64(offset);
     header.refcount_table_clusters = cpu_to_be32(1);
@@ -1111,7 +1111,7 @@ static int qcow_create(const char *filename, int64_t total_size,
     create_refcount_update(s, s->l1_table_offset, l1_size * sizeof(uint64_t));
     create_refcount_update(s, s->refcount_table_offset, s->cluster_size);
     create_refcount_update(s, s->refcount_block_offset, s->cluster_size);
-    
+   
     /* write all the data */
     write(fd, &header, sizeof(header));
     if (backing_file) {
@@ -1124,7 +1124,7 @@ static int qcow_create(const char *filename, int64_t total_size,
     }
     lseek(fd, s->refcount_table_offset, SEEK_SET);
     write(fd, s->refcount_table, s->cluster_size);
-    
+   
     lseek(fd, s->refcount_block_offset, SEEK_SET);
     write(fd, s->refcount_block, s->cluster_size);
@@ -1153,7 +1153,7 @@ static int qcow_make_empty(BlockDriverState *bs)
     ret = bdrv_truncate(s->hd, s->l1_table_offset + l1_length);
     if (ret < 0)
         return ret;
-    
+   
     l2_cache_reset(bs);
 #endif
     return 0;
@@ -1161,7 +1161,7 @@ static int qcow_make_empty(BlockDriverState *bs)
 /* XXX: put compressed sectors first, then all the cluster aligned
    tables to avoid losing bytes in alignment */
-static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num, 
+static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num,
                                  const uint8_t *buf, int nb_sectors)
 {
     BDRVQcowState *s = bs->opaque;
@@ -1189,7 +1189,7 @@ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num,
     /* best compression, small window, no zlib header */
     memset(&strm, 0, sizeof(strm));
     ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION,
-                       Z_DEFLATED, -12, 
+                       Z_DEFLATED, -12,
                        9, Z_DEFAULT_STRATEGY);
     if (ret != 0) {
         qemu_free(out_buf);
@@ -1215,7 +1215,7 @@ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num,
         /* could not compress: write normal cluster */
         qcow_write(bs, sector_num, buf, s->cluster_sectors);
     } else {
-        cluster_offset = get_cluster_offset(bs, sector_num << 9, 2, 
+        cluster_offset = get_cluster_offset(bs, sector_num << 9, 2,
                                             out_len, 0, 0);
         cluster_offset &= s->cluster_offset_mask;
         if (bdrv_pwrite(s->hd, cluster_offset, out_buf, out_len) != out_len) {
@@ -1223,7 +1223,7 @@ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num,
             return -1;
         }
     }
-    
+   
     qemu_free(out_buf);
     return 0;
 }
@@ -1238,7 +1238,7 @@ static int qcow_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
 {
     BDRVQcowState *s = bs->opaque;
     bdi->cluster_size = s->cluster_size;
-    bdi->vm_state_offset = (int64_t)s->l1_vm_state_index << 
+    bdi->vm_state_offset = (int64_t)s->l1_vm_state_index <<
         (s->cluster_bits + s->l2_bits);
     return 0;
 }
@@ -1247,7 +1247,7 @@ static int qcow_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
 /* snapshot support */
 /* update the refcounts of snapshots and the copied flag */
-static int update_snapshot_refcount(BlockDriverState *bs, 
+static int update_snapshot_refcount(BlockDriverState *bs,
                                     int64_t l1_table_offset,
                                     int l1_size,
                                     int addend)
@@ -1256,7 +1256,7 @@ static int update_snapshot_refcount(BlockDriverState *bs,
     uint64_t *l1_table, *l2_table, l2_offset, offset, l1_size2, l1_allocated;
     int64_t old_offset, old_l2_offset;
     int l2_size, i, j, l1_modified, l2_modified, nb_csectors, refcount;
-    
+   
     l2_cache_reset(bs);
     l2_table = NULL;
@@ -1268,7 +1268,7 @@ static int update_snapshot_refcount(BlockDriverState *bs,
         if (!l1_table)
             goto fail;
         l1_allocated = 1;
-        if (bdrv_pread(s->hd, l1_table_offset, 
+        if (bdrv_pread(s->hd, l1_table_offset,
                        l1_table, l1_size2) != l1_size2)
             goto fail;
         for(i = 0;i < l1_size; i++)
@@ -1278,7 +1278,7 @@ static int update_snapshot_refcount(BlockDriverState *bs,
         l1_table = s->l1_table;
         l1_allocated = 0;
     }
-    
+   
     l2_size = s->l2_size * sizeof(uint64_t);
     l2_table = qemu_malloc(l2_size);
     if (!l2_table)
@@ -1298,13 +1298,13 @@ static int update_snapshot_refcount(BlockDriverState *bs,
                     old_offset = offset;
                     offset &= ~QCOW_OFLAG_COPIED;
                     if (offset & QCOW_OFLAG_COMPRESSED) {
-                        nb_csectors = ((offset >> s->csize_shift) & 
+                        nb_csectors = ((offset >> s->csize_shift) &
                                        s->csize_mask) + 1;
                         if (addend != 0)
                             update_refcount(bs, (offset & s->cluster_offset_mask) & ~511,
                                             nb_csectors * 512, addend);
                         /* compressed clusters are never modified */
-                        refcount = 2; 
+                        refcount = 2;
                     } else {
                         if (addend != 0) {
                             refcount = update_cluster_refcount(bs, offset >> s->cluster_bits, addend);
@@ -1323,7 +1323,7 @@ static int update_snapshot_refcount(BlockDriverState *bs,
                 }
             }
             if (l2_modified) {
-                if (bdrv_pwrite(s->hd, 
+                if (bdrv_pwrite(s->hd,
                                 l2_offset, l2_table, l2_size) != l2_size)
                     goto fail;
             }
@@ -1345,7 +1345,7 @@ static int update_snapshot_refcount(BlockDriverState *bs,
     if (l1_modified) {
         for(i = 0; i < l1_size; i++)
             cpu_to_be64s(&l1_table[i]);
-        if (bdrv_pwrite(s->hd, l1_table_offset, l1_table, 
+        if (bdrv_pwrite(s->hd, l1_table_offset, l1_table,
                         l1_size2) != l1_size2)
             goto fail;
         for(i = 0; i < l1_size; i++)
@@ -1455,7 +1455,7 @@ static int qcow_write_snapshots(BlockDriverState *bs)
     snapshots_offset = alloc_clusters(bs, snapshots_size);
     offset = snapshots_offset;
-    
+   
     for(i = 0; i < s->nb_snapshots; i++) {
         sn = s->snapshots + i;
         memset(&h, 0, sizeof(h));
@@ -1465,7 +1465,7 @@ static int qcow_write_snapshots(BlockDriverState *bs)
         h.date_sec = cpu_to_be32(sn->date_sec);
         h.date_nsec = cpu_to_be32(sn->date_nsec);
         h.vm_clock_nsec = cpu_to_be64(sn->vm_clock_nsec);
-        
+       
         id_str_size = strlen(sn->id_str);
         name_size = strlen(sn->name);
         h.id_str_size = cpu_to_be16(id_str_size);
@@ -1533,7 +1533,7 @@ static int find_snapshot_by_id_or_name(BlockDriverState *bs, const char *name)
 {
     BDRVQcowState *s = bs->opaque;
     int i, ret;
-    
+   
     ret = find_snapshot_by_id(bs, name);
     if (ret >= 0)
         return ret;
@@ -1545,14 +1545,14 @@ static int find_snapshot_by_id_or_name(BlockDriverState *bs, const char *name)
 }
 /* if no id is provided, a new one is constructed */
-static int qcow_snapshot_create(BlockDriverState *bs, 
+static int qcow_snapshot_create(BlockDriverState *bs,
                                 QEMUSnapshotInfo *sn_info)
 {
     BDRVQcowState *s = bs->opaque;
     QCowSnapshot *snapshots1, sn1, *sn = &sn1;
     int i, ret;
     uint64_t *l1_table = NULL;
-    
+   
     memset(sn, 0, sizeof(*sn));
     if (sn_info->id_str[0] == '\0') {
@@ -1590,7 +1590,7 @@ static int qcow_snapshot_create(BlockDriverState *bs,
         l1_table[i] = cpu_to_be64(s->l1_table[i]);
     }
     if (bdrv_pwrite(s->hd, sn->l1_table_offset,
-                    l1_table, s->l1_size * sizeof(uint64_t)) != 
+                    l1_table, s->l1_size * sizeof(uint64_t)) !=
         (s->l1_size * sizeof(uint64_t)))
         goto fail;
     qemu_free(l1_table);
@@ -1616,7 +1616,7 @@ static int qcow_snapshot_create(BlockDriverState *bs,
 }
 /* copy the snapshot 'snapshot_name' into the current disk image */
-static int qcow_snapshot_goto(BlockDriverState *bs, 
+static int qcow_snapshot_goto(BlockDriverState *bs,
                               const char *snapshot_id)
 {
     BDRVQcowState *s = bs->opaque;
@@ -1637,7 +1637,7 @@ static int qcow_snapshot_goto(BlockDriverState *bs,
     s->l1_size = sn->l1_size;
     l1_size2 = s->l1_size * sizeof(uint64_t);
     /* copy the snapshot l1 table to the current l1 table */
-    if (bdrv_pread(s->hd, sn->l1_table_offset, 
+    if (bdrv_pread(s->hd, sn->l1_table_offset,
                    s->l1_table, l1_size2) != l1_size2)
         goto fail;
     if (bdrv_pwrite(s->hd, s->l1_table_offset,
@@ -1663,7 +1663,7 @@ static int qcow_snapshot_delete(BlockDriverState *bs, const char *snapshot_id)
     BDRVQcowState *s = bs->opaque;
     QCowSnapshot *sn;
     int snapshot_index, ret;
-    
+   
     snapshot_index = find_snapshot_by_id_or_name(bs, snapshot_id);
     if (snapshot_index < 0)
         return -ENOENT;
@@ -1693,7 +1693,7 @@ static int qcow_snapshot_delete(BlockDriverState *bs, const char *snapshot_id)
     return 0;
 }
-static int qcow_snapshot_list(BlockDriverState *bs, 
+static int qcow_snapshot_list(BlockDriverState *bs,
                               QEMUSnapshotInfo **psn_tab)
 {
     BDRVQcowState *s = bs->opaque;
@@ -1731,7 +1731,7 @@ static int refcount_init(BlockDriverState *bs)
 {
     BDRVQcowState *s = bs->opaque;
     int ret, refcount_table_size2, i;
-    
+   
     s->refcount_block_cache = qemu_malloc(s->cluster_size);
     if (!s->refcount_block_cache)
         goto fail;
@@ -1760,12 +1760,12 @@ static void refcount_close(BlockDriverState *bs)
 }
-static int load_refcount_block(BlockDriverState *bs, 
+static int load_refcount_block(BlockDriverState *bs,
                                int64_t refcount_block_offset)
 {
     BDRVQcowState *s = bs->opaque;
     int ret;
-    ret = bdrv_pread(s->hd, refcount_block_offset, s->refcount_block_cache, 
+    ret = bdrv_pread(s->hd, refcount_block_offset, s->refcount_block_cache,
                      s->cluster_size);
     if (ret != s->cluster_size)
         return -EIO;
@@ -1790,7 +1790,7 @@ static int get_refcount(BlockDriverState *bs, int64_t cluster_index)
         if (load_refcount_block(bs, refcount_block_offset) < 0)
             return 1;
     }
-    block_index = cluster_index & 
+    block_index = cluster_index &
         ((1 << (s->cluster_bits - REFCOUNT_SHIFT)) - 1);
     return be16_to_cpu(s->refcount_block_cache[block_index]);
 }
@@ -1812,7 +1812,7 @@ static int64_t alloc_clusters_noref(BlockDriverState *bs, int64_t size)
             }
 #ifdef DEBUG_ALLOC2
             printf("alloc_clusters: size=%lld -> %lld\n",
-                   size, 
+                   size,
                    (s->free_cluster_index - nb_clusters) << s->cluster_bits);
 #endif
             return (s->free_cluster_index - nb_clusters) << s->cluster_bits;
@@ -1839,13 +1839,13 @@ static int64_t alloc_bytes(BlockDriverState *bs, int size)
     BDRVQcowState *s = bs->opaque;
     int64_t offset, cluster_offset;
     int free_in_cluster;
-    
+   
     assert(size > 0 && size <= s->cluster_size);
     if (s->free_byte_offset == 0) {
         s->free_byte_offset = alloc_clusters(bs, s->cluster_size);
     }
  redo:
-    free_in_cluster = s->cluster_size - 
+    free_in_cluster = s->cluster_size -
         (s->free_byte_offset & (s->cluster_size - 1));
     if (size <= free_in_cluster) {
         /* enough space in current cluster */
@@ -1872,7 +1872,7 @@ static int64_t alloc_bytes(BlockDriverState *bs, int size)
     return offset;
 }
-static void free_clusters(BlockDriverState *bs, 
+static void free_clusters(BlockDriverState *bs,
                           int64_t offset, int64_t size)
 {
     update_refcount(bs, offset, size, -1);
@@ -1912,14 +1912,14 @@ static int grow_refcount_table(BlockDriverState *bs, int min_size)
     new_table = qemu_mallocz(new_table_size2);
     if (!new_table)
         return -ENOMEM;
-    memcpy(new_table, s->refcount_table, 
+    memcpy(new_table, s->refcount_table,
            s->refcount_table_size * sizeof(uint64_t));
     for(i = 0; i < s->refcount_table_size; i++)
         cpu_to_be64s(&new_table[i]);
     /* Note: we cannot update the refcount now to avoid recursion */
     table_offset = alloc_clusters_noref(bs, new_table_size2);
     ret = bdrv_pwrite(s->hd, table_offset, new_table, new_table_size2);
-    if (ret != new_table_size2) 
+    if (ret != new_table_size2)
         goto fail;
     for(i = 0; i < s->refcount_table_size; i++)
         be64_to_cpus(&new_table[i]);
@@ -1950,7 +1950,7 @@ static int grow_refcount_table(BlockDriverState *bs, int min_size)
 /* addend must be 1 or -1 */
 /* XXX: cache several refcount block clusters ? */
-static int update_cluster_refcount(BlockDriverState *bs, 
+static int update_cluster_refcount(BlockDriverState *bs,
                                    int64_t cluster_index,
                                    int addend)
 {
@@ -1980,8 +1980,8 @@ static int update_cluster_refcount(BlockDriverState *bs,
             return -EINVAL;
         s->refcount_table[refcount_table_index] = offset;
         data64 = cpu_to_be64(offset);
-        ret = bdrv_pwrite(s->hd, s->refcount_table_offset + 
-                          refcount_table_index * sizeof(uint64_t), 
+        ret = bdrv_pwrite(s->hd, s->refcount_table_offset +
+                          refcount_table_index * sizeof(uint64_t),
                           &data64, sizeof(data64));
         if (ret != sizeof(data64))
             return -EINVAL;
@@ -1996,7 +1996,7 @@ static int update_cluster_refcount(BlockDriverState *bs,
         }
     }
     /* we can update the count and save it */
-    block_index = cluster_index & 
+    block_index = cluster_index &
         ((1 << (s->cluster_bits - REFCOUNT_SHIFT)) - 1);
     refcount = be16_to_cpu(s->refcount_block_cache[block_index]);
     refcount += addend;
@@ -2006,50 +2006,50 @@ static int update_cluster_refcount(BlockDriverState *bs,
         s->free_cluster_index = cluster_index;
     }
     s->refcount_block_cache[block_index] = cpu_to_be16(refcount);
-    if (bdrv_pwrite(s->hd, 
-                    refcount_block_offset + (block_index << REFCOUNT_SHIFT), 
+    if (bdrv_pwrite(s->hd,
+                    refcount_block_offset + (block_index << REFCOUNT_SHIFT),
                     &s->refcount_block_cache[block_index], 2) != 2)
         return -EIO;
     return refcount;
 }
-static void update_refcount(BlockDriverState *bs, 
-                            int64_t offset, int64_t length, 
+static void update_refcount(BlockDriverState *bs,
+                            int64_t offset, int64_t length,
                             int addend)
 {
     BDRVQcowState *s = bs->opaque;
     int64_t start, last, cluster_offset;
 #ifdef DEBUG_ALLOC2
-    printf("update_refcount: offset=%lld size=%lld addend=%d\n", 
+    printf("update_refcount: offset=%lld size=%lld addend=%d\n",
            offset, length, addend);
 #endif
     if (length <= 0)
         return;
     start = offset & ~(s->cluster_size - 1);
     last = (offset + length - 1) & ~(s->cluster_size - 1);
-    for(cluster_offset = start; cluster_offset <= last; 
+    for(cluster_offset = start; cluster_offset <= last;
         cluster_offset += s->cluster_size) {
         update_cluster_refcount(bs, cluster_offset >> s->cluster_bits, addend);
     }
 }
 #ifdef DEBUG_ALLOC
-static void inc_refcounts(BlockDriverState *bs, 
-                          uint16_t *refcount_table, 
+static void inc_refcounts(BlockDriverState *bs,
+                          uint16_t *refcount_table,
                           int refcount_table_size,
                           int64_t offset, int64_t size)
 {
     BDRVQcowState *s = bs->opaque;
     int64_t start, last, cluster_offset;
     int k;
-    
+   
     if (size <= 0)
         return;
     start = offset & ~(s->cluster_size - 1);
     last = (offset + size - 1) & ~(s->cluster_size - 1);
-    for(cluster_offset = start; cluster_offset <= last; 
+    for(cluster_offset = start; cluster_offset <= last;
         cluster_offset += s->cluster_size) {
         k = cluster_offset >> s->cluster_bits;
         if (k < 0 || k >= refcount_table_size) {
@@ -2062,8 +2062,8 @@ static void inc_refcounts(BlockDriverState *bs,
     }
 }
-static int check_refcounts_l1(BlockDriverState *bs, 
-                              uint16_t *refcount_table, 
+static int check_refcounts_l1(BlockDriverState *bs,
+                              uint16_t *refcount_table,
                               int refcount_table_size,
                               int64_t l1_table_offset, int l1_size,
                               int check_copied)
@@ -2081,12 +2081,12 @@ static int check_refcounts_l1(BlockDriverState *bs,
     l1_table = qemu_malloc(l1_size2);
     if (!l1_table)
         goto fail;
-    if (bdrv_pread(s->hd, l1_table_offset, 
+    if (bdrv_pread(s->hd, l1_table_offset,
                    l1_table, l1_size2) != l1_size2)
         goto fail;
     for(i = 0;i < l1_size; i++)
         be64_to_cpus(&l1_table[i]);
-    
+   
     l2_size = s->l2_size * sizeof(uint64_t);
     l2_table = qemu_malloc(l2_size);
     if (!l2_table)
@@ -2113,10 +2113,10 @@ static int check_refcounts_l1(BlockDriverState *bs,
                                    offset >> s->cluster_bits);
                             offset &= ~QCOW_OFLAG_COPIED;
                         }
-                        nb_csectors = ((offset >> s->csize_shift) & 
+                        nb_csectors = ((offset >> s->csize_shift) &
                                        s->csize_mask) + 1;
                         offset &= s->cluster_offset_mask;
-                        inc_refcounts(bs, refcount_table, 
+                        inc_refcounts(bs, refcount_table,
                                       refcount_table_size,
                                       offset & ~511, nb_csectors * 512);
                     } else {
@@ -2128,13 +2128,13 @@ static int check_refcounts_l1(BlockDriverState *bs,
                             }
                         }
                         offset &= ~QCOW_OFLAG_COPIED;
-                        inc_refcounts(bs, refcount_table, 
+                        inc_refcounts(bs, refcount_table,
                                       refcount_table_size,
                                       offset, s->cluster_size);
                     }
                 }
             }
-            inc_refcounts(bs, refcount_table, 
+            inc_refcounts(bs, refcount_table,
                           refcount_table_size,
                           l2_offset,
                           s->cluster_size);
@@ -2165,7 +2165,7 @@ static void check_refcounts(BlockDriverState *bs)
     /* header */
     inc_refcounts(bs, refcount_table, nb_clusters,
                   0, s->cluster_size);
-    
+   
     check_refcounts_l1(bs, refcount_table, nb_clusters,
                        s->l1_table_offset, s->l1_size, 1);
@@ -2180,7 +2180,7 @@ static void check_refcounts(BlockDriverState *bs)
     /* refcount data */
     inc_refcounts(bs, refcount_table, nb_clusters,
-                  s->refcount_table_offset, 
+                  s->refcount_table_offset,
                   s->refcount_table_size * sizeof(uint64_t));
     for(i = 0; i < s->refcount_table_size; i++) {
         int64_t offset;
 /*
  * Block driver for RAW files
- * 
+ *
  * Copyright (c) 2006 Fabrice Bellard
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -137,12 +137,12 @@ static int raw_open(BlockDriverState *bs, const char *filename, int flags)
 #endif
 */
-static int raw_pread(BlockDriverState *bs, int64_t offset, 
+static int raw_pread(BlockDriverState *bs, int64_t offset,
                      uint8_t *buf, int count)
 {
     BDRVRawState *s = bs->opaque;
     int ret;
-    
+   
     ret = fd_open(bs);
     if (ret < 0)
         return ret;
@@ -189,12 +189,12 @@ label__raw_read__success:
     return ret;
 }
-static int raw_pwrite(BlockDriverState *bs, int64_t offset, 
+static int raw_pwrite(BlockDriverState *bs, int64_t offset,
                       const uint8_t *buf, int count)
 {
     BDRVRawState *s = bs->opaque;
     int ret;
-    
+   
     ret = fd_open(bs);
     if (ret < 0)
         return ret;
@@ -259,7 +259,7 @@ void qemu_aio_init(void)
     struct sigaction act;
     aio_initialized = 1;
-    
+   
     sigfillset(&act.sa_mask);
     act.sa_flags = 0; /* do not restart syscalls to interrupt select() */
     act.sa_handler = aio_signal_handler;
@@ -401,7 +401,7 @@ static BlockDriverAIOCB *raw_aio_read(BlockDriverState *bs,
     if (aio_read(&acb->aiocb) < 0) {
         qemu_aio_release(acb);
         return NULL;
-    } 
+    }
     return &acb->common;
 }
@@ -417,7 +417,7 @@ static BlockDriverAIOCB *raw_aio_write(BlockDriverState *bs,
     if (aio_write(&acb->aiocb) < 0) {
         qemu_aio_release(acb);
         return NULL;
-    } 
+    }
     return &acb->common;
 }
@@ -522,7 +522,7 @@ static int raw_create(const char *filename, int64_t total_size,
     if (flags || backing_file)
         return -ENOTSUP;
-    fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 
+    fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY,
               0644);
     if (fd < 0)
         return -EIO;
@@ -547,7 +547,7 @@ BlockDriver bdrv_raw = {
     raw_close,
     raw_create,
     raw_flush,
-    
+   
     .bdrv_aio_read = raw_aio_read,
     .bdrv_aio_write = raw_aio_write,
     .bdrv_aio_cancel = raw_aio_cancel,
@@ -568,7 +568,7 @@ static kern_return_t GetBSDPath( io_iterator_t mediaIterator, char *bsdPath, CFI
 kern_return_t FindEjectableCDMedia( io_iterator_t *mediaIterator )
 {
-    kern_return_t       kernResult; 
+    kern_return_t       kernResult;
     mach_port_t     masterPort;
     CFMutableDictionaryRef  classesToMatch;
@@ -576,8 +576,8 @@ kern_return_t FindEjectableCDMedia( io_iterator_t *mediaIterator )
     if ( KERN_SUCCESS != kernResult ) {
         printf( "IOMasterPort returned %d\n", kernResult );
     }
-    
-    classesToMatch = IOServiceMatching( kIOCDMediaClass ); 
+   
+    classesToMatch = IOServiceMatching( kIOCDMediaClass );
     if ( classesToMatch == NULL ) {
         printf( "IOServiceMatching returned a NULL dictionary.\n" );
     } else {
@@ -588,7 +588,7 @@ kern_return_t FindEjectableCDMedia( io_iterator_t *mediaIterator )
     {
         printf( "IOServiceGetMatchingServices returned %d\n", kernResult );
     }
-    
+   
     return kernResult;
 }
@@ -614,7 +614,7 @@ kern_return_t GetBSDPath( io_iterator_t mediaIterator, char *bsdPath, CFIndex ma
         }
         IOObjectRelease( nextMedia );
     }
-    
+   
     return kernResult;
 }
@@ -631,10 +631,10 @@ static int hdev_open(BlockDriverState *bs, const char *filename, int flags)
         io_iterator_t mediaIterator;
         char bsdPath[ MAXPATHLEN ];
         int fd;
- 
+
         kernResult = FindEjectableCDMedia( &mediaIterator );
         kernResult = GetBSDPath( mediaIterator, bsdPath, sizeof( bsdPath ) );
-    
+   
         if ( bsdPath[ 0 ] != '\0' ) {
             strcat(bsdPath,"s0");
             /* some CDs don't have a partition 0 */
@@ -646,7 +646,7 @@ static int hdev_open(BlockDriverState *bs, const char *filename, int flags)
             }
             filename = bsdPath;
         }
-        
+       
         if ( mediaIterator )
             IOObjectRelease( mediaIterator );
     }
@@ -704,7 +704,7 @@ static int fd_open(BlockDriverState *bs)
     if (s->type != FTYPE_FD)
         return 0;
     last_media_present = (s->fd >= 0);
-    if (s->fd >= 0 && 
+    if (s->fd >= 0 &&
         (qemu_get_clock(rt_clock) - s->fd_open_time) >= FD_OPEN_TIMEOUT) {
         close(s->fd);
         s->fd = -1;
@@ -713,7 +713,7 @@ static int fd_open(BlockDriverState *bs)
 #endif
     }
     if (s->fd < 0) {
-        if (s->fd_got_error && 
+        if (s->fd_got_error &&
             (qemu_get_clock(rt_clock) - s->fd_error_time) < FD_OPEN_TIMEOUT) {
 #ifdef DEBUG_FLOPPY
             printf("No floppy (open delayed)\n");
@@ -883,7 +883,7 @@ BlockDriver bdrv_host_device = {
     raw_close,
     NULL,
     raw_flush,
-    
+   
     .bdrv_aio_read = raw_aio_read,
     .bdrv_aio_write = raw_aio_write,
     .bdrv_aio_cancel = raw_aio_cancel,
@@ -979,7 +979,7 @@ static int raw_open(BlockDriverState *bs, const char *filename, int flags)
 #else
     overlapped = FILE_FLAG_OVERLAPPED;
 #endif
-    s->hfile = CreateFile(filename, access_flags, 
+    s->hfile = CreateFile(filename, access_flags,
                           FILE_SHARE_READ, NULL,
                           create_flags, overlapped, NULL);
     if (s->hfile == INVALID_HANDLE_VALUE) {
@@ -992,14 +992,14 @@ static int raw_open(BlockDriverState *bs, const char *filename, int flags)
     return 0;
 }
-static int raw_pread(BlockDriverState *bs, int64_t offset, 
+static int raw_pread(BlockDriverState *bs, int64_t offset,
                      uint8_t *buf, int count)
 {
     BDRVRawState *s = bs->opaque;
     OVERLAPPED ov;
     DWORD ret_count;
     int ret;
-    
+   
     memset(&ov, 0, sizeof(ov));
     ov.Offset = offset;
     ov.OffsetHigh = offset >> 32;
@@ -1014,14 +1014,14 @@ static int raw_pread(BlockDriverState *bs, int64_t offset,
     return ret_count;
 }
-static int raw_pwrite(BlockDriverState *bs, int64_t offset, 
+static int raw_pwrite(BlockDriverState *bs, int64_t offset,
                       const uint8_t *buf, int count)
 {
     BDRVRawState *s = bs->opaque;
     OVERLAPPED ov;
     DWORD ret_count;
     int ret;
-    
+   
     memset(&ov, 0, sizeof(ov));
     ov.Offset = offset;
     ov.OffsetHigh = offset >> 32;
@@ -1171,7 +1171,7 @@ static int64_t raw_getlength(BlockDriverState *bs)
 {
     BDRVRawState *s = bs->opaque;
     LARGE_INTEGER l;
-    ULARGE_INTEGER available, total, total_free; 
+    ULARGE_INTEGER available, total, total_free;
     DISK_GEOMETRY dg;
     DWORD count;
     BOOL status;
@@ -1209,7 +1209,7 @@ static int raw_create(const char *filename, int64_t total_size,
     if (flags || backing_file)
         return -ENOTSUP;
-    fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 
+    fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY,
               0644);
     if (fd < 0)
         return -EIO;
@@ -1256,7 +1256,7 @@ BlockDriver bdrv_raw = {
     raw_close,
     raw_create,
     raw_flush,
-    
+   
 #if 0
     .bdrv_aio_read = raw_aio_read,
     .bdrv_aio_write = raw_aio_write,
@@ -1335,7 +1335,7 @@ static int hdev_open(BlockDriverState *bs, const char *filename, int flags)
         }
     }
     s->type = find_device_type(bs, filename);
-    
+   
     if ((flags & BDRV_O_ACCESS) == O_RDWR) {
         access_flags = GENERIC_READ | GENERIC_WRITE;
     } else {
@@ -1348,7 +1348,7 @@ static int hdev_open(BlockDriverState *bs, const char *filename, int flags)
 #else
     overlapped = FILE_FLAG_OVERLAPPED;
 #endif
-    s->hfile = CreateFile(filename, access_flags, 
+    s->hfile = CreateFile(filename, access_flags,
                           FILE_SHARE_READ, NULL,
                           create_flags, overlapped, NULL);
     if (s->hfile == INVALID_HANDLE_VALUE) {
@@ -1382,10 +1382,10 @@ static int raw_eject(BlockDriverState *bs, int eject_flag)
     if (s->type == FTYPE_FILE)
         return -ENOTSUP;
     if (eject_flag) {
-        DeviceIoControl(s->hfile, IOCTL_STORAGE_EJECT_MEDIA, 
+        DeviceIoControl(s->hfile, IOCTL_STORAGE_EJECT_MEDIA,
                         NULL, 0, NULL, 0, &lpBytesReturned, NULL);
     } else {
-        DeviceIoControl(s->hfile, IOCTL_STORAGE_LOAD_MEDIA, 
+        DeviceIoControl(s->hfile, IOCTL_STORAGE_LOAD_MEDIA,
                         NULL, 0, NULL, 0, &lpBytesReturned, NULL);
     }
 }
@@ -1406,7 +1406,7 @@ BlockDriver bdrv_host_device = {
     raw_close,
     NULL,
     raw_flush,
-    
+   
 #if 0
     .bdrv_aio_read = raw_aio_read,
     .bdrv_aio_write = raw_aio_write,
 /*
  * Block driver for the VMDK format
- * 
+ *
  * Copyright (c) 2004 Fabrice Bellard
  * Copyright (c) 2005 Filip Navara
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -110,16 +110,16 @@ static int vmdk_probe(const uint8_t *buf, int buf_size, const char *filename)
 #define CHECK_CID 1
-#define SECTOR_SIZE 512				
+#define SECTOR_SIZE 512			
 #define DESC_SIZE 20*SECTOR_SIZE	// 20 sectors of 512 bytes each
-#define HEADER_SIZE 512   			// first sector of 512 bytes 
+#define HEADER_SIZE 512   			// first sector of 512 bytes
 static uint32_t vmdk_read_cid(BlockDriverState *bs, int parent)
 {
     BDRVVmdkState *s = bs->opaque;
     char desc[DESC_SIZE];
     uint32_t cid;
-    char *p_name, *cid_str; 
+    char *p_name, *cid_str;
     size_t cid_str_size;
     /* the descriptor offset = 0x200 */
@@ -187,7 +187,7 @@ static int vmdk_snapshot_create(const char *filename, const char *backing_file)
 {
     int snp_fd, p_fd;
     uint32_t p_cid;
-    char *p_name, *gd_buf, *rgd_buf; 
+    char *p_name, *gd_buf, *rgd_buf;
     const char *real_filename, *temp_str;
     VMDK4Header header;
     uint32_t gde_entries, gd_size;
@@ -271,7 +271,7 @@ static int vmdk_snapshot_create(const char *filename, const char *backing_file)
     gt_size = (int64_t)header.num_gtes_per_gte * header.granularity * SECTOR_SIZE;
     if (!gt_size)
         goto fail;
-    gde_entries = (uint32_t)(capacity / gt_size);  // number of gde/rgde 
+    gde_entries = (uint32_t)(capacity / gt_size);  // number of gde/rgde
     gd_size = gde_entries * sizeof(uint32_t);
     /* write RGD */
@@ -308,7 +308,7 @@ static int vmdk_snapshot_create(const char *filename, const char *backing_file)
     fail_gd:
     qemu_free(gd_buf);
-    fail_rgd:   
+    fail_rgd:  
     qemu_free(rgd_buf);
     fail:
     close(p_fd);
@@ -326,7 +326,7 @@ int parent_open = 0;
 static int vmdk_parent_open(BlockDriverState *bs, const char * filename)
 {
     BDRVVmdkState *s = bs->opaque;
-    char *p_name; 
+    char *p_name;
     char desc[DESC_SIZE];
     char parent_img_name[1024];
@@ -341,7 +341,7 @@ static int vmdk_parent_open(BlockDriverState *bs, const char * filename)
         p_name += sizeof("parentFileNameHint") + 1;
         if ((end_name = strchr(p_name,'\"')) == 0)
             return -1;
-                
+               
         strncpy(s->hd->backing_file, p_name, end_name - p_name);
         if (stat(s->hd->backing_file, &file_buf) != 0) {
             path_combine(parent_img_name, sizeof(parent_img_name),
@@ -406,7 +406,7 @@ static int vmdk_open(BlockDriverState *bs, const char *filename, int flags)
         s->l1_entry_sectors = s->l2_size * s->cluster_sectors;
         if (s->l1_entry_sectors <= 0)
             goto fail;
-        s->l1_size = (bs->total_sectors + s->l1_entry_sectors - 1) 
+        s->l1_size = (bs->total_sectors + s->l1_entry_sectors - 1)
             / s->l1_entry_sectors;
         s->l1_table_offset = le64_to_cpu(header.rgd_offset) << 9;
         s->l1_backup_table_offset = le64_to_cpu(header.gd_offset) << 9;
@@ -552,7 +552,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs, VmdkMetaData *m_data,
         }
     }
     l2_table = s->l2_cache + (min_index * s->l2_size);
-    if (bdrv_pread(s->hd, (int64_t)l2_offset * 512, l2_table, s->l2_size * sizeof(uint32_t)) != 
+    if (bdrv_pread(s->hd, (int64_t)l2_offset * 512, l2_table, s->l2_size * sizeof(uint32_t)) !=
                                                                         s->l2_size * sizeof(uint32_t))
         return 0;
@@ -597,7 +597,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs, VmdkMetaData *m_data,
     return cluster_offset;
 }
-static int vmdk_is_allocated(BlockDriverState *bs, int64_t sector_num, 
+static int vmdk_is_allocated(BlockDriverState *bs, int64_t sector_num,
                              int nb_sectors, int *pnum)
 {
     BDRVVmdkState *s = bs->opaque;
@@ -613,7 +613,7 @@ static int vmdk_is_allocated(BlockDriverState *bs, int64_t sector_num,
     return (cluster_offset != 0);
 }
-static int vmdk_read(BlockDriverState *bs, int64_t sector_num, 
+static int vmdk_read(BlockDriverState *bs, int64_t sector_num,
                     uint8_t *buf, int nb_sectors)
 {
     BDRVVmdkState *s = bs->opaque;
@@ -648,7 +648,7 @@ static int vmdk_read(BlockDriverState *bs, int64_t sector_num,
     return 0;
 }
-static int vmdk_write(BlockDriverState *bs, int64_t sector_num, 
+static int vmdk_write(BlockDriverState *bs, int64_t sector_num,
                      const uint8_t *buf, int nb_sectors)
 {
     BDRVVmdkState *s = bs->opaque;
@@ -761,8 +761,8 @@ static int vmdk_create(const char *filename, int64_t total_size,
     header.check_bytes[1] = 0x20;
     header.check_bytes[2] = 0xd;
     header.check_bytes[3] = 0xa;
-    
-    /* write all the data */    
+   
+    /* write all the data */   
     write(fd, &magic, sizeof(magic));
     write(fd, &header, sizeof(header));
@@ -773,7 +773,7 @@ static int vmdk_create(const char *filename, int64_t total_size,
     for (i = 0, tmp = header.rgd_offset + gd_size;
          i < gt_count; i++, tmp += gt_size)
         write(fd, &tmp, sizeof(tmp));
-   
+  
     /* write backup grain directory */
     lseek(fd, le64_to_cpu(header.gd_offset) << 9, SEEK_SET);
     for (i = 0, tmp = header.gd_offset + gd_size;
 /*
  * Block driver for Conectix/Microsoft Virtual PC images
- * 
+ *
  * Copyright (c) 2005 Alex Beregszaszi
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -65,7 +65,7 @@ struct vpc_subheader {
 typedef struct BDRVVPCState {
     int fd;
-    
+   
     int pagetable_entries;
     uint32_t *pagetable;
@@ -74,7 +74,7 @@ typedef struct BDRVVPCState {
     uint8_t *pageentry_u8;
     uint32_t *pageentry_u32;
     uint16_t *pageentry_u16;
-    
+   
     uint64_t last_bitmap;
 #endif
 } BDRVVPCState;
@@ -97,7 +97,7 @@ static int vpc_open(BlockDriverState *bs, const char *filename, int flags)
         return -1;
     bs->read_only = 1; // no write support yet
-    
+   
     s->fd = fd;
     if (read(fd, &header, HEADER_SIZE) != HEADER_SIZE)
@@ -153,13 +153,13 @@ static inline int seek_to_sector(BlockDriverState *bs, int64_t sector_num)
     pagetable_index = offset / s->pageentry_size;
     pageentry_index = (offset % s->pageentry_size) / 512;
-    
+   
     if (pagetable_index > s->pagetable_entries || s->pagetable[pagetable_index] == 0xffffffff)
 	return -1; // not allocated
     bitmap_offset = 512 * s->pagetable[pagetable_index];
     block_offset = bitmap_offset + 512 + (512 * pageentry_index);
-    
+   
 //    printf("sector: %" PRIx64 ", index: %x, offset: %x, bioff: %" PRIx64 ", bloff: %" PRIx64 "\n",
 //	sector_num, pagetable_index, pageentry_index,
 //	bitmap_offset, block_offset);
@@ -172,7 +172,7 @@ static inline int seek_to_sector(BlockDriverState *bs, int64_t sector_num)
 	lseek(s->fd, bitmap_offset, SEEK_SET);
 	s->last_bitmap = bitmap_offset;
-	
+
 	// Scary! Bitmap is stored as big endian 32bit entries,
 	// while we used to look it up byte by byte
 	read(s->fd, s->pageentry_u8, 512);
@@ -184,7 +184,7 @@ static inline int seek_to_sector(BlockDriverState *bs, int64_t sector_num)
 	return -1;
 #else
     lseek(s->fd, bitmap_offset + (pageentry_index / 8), SEEK_SET);
-	
+
     read(s->fd, &bitmap_entry, 1);
     if ((bitmap_entry >> (pageentry_index % 8)) & 1)
@@ -196,7 +196,7 @@ static inline int seek_to_sector(BlockDriverState *bs, int64_t sector_num)
     return 0;
 }
-static int vpc_read(BlockDriverState *bs, int64_t sector_num, 
+static int vpc_read(BlockDriverState *bs, int64_t sector_num,
                     uint8_t *buf, int nb_sectors)
 {
     BDRVVPCState *s = bs->opaque;
 /* vim:set shiftwidth=4 ts=8: */
 /*
  * QEMU Block driver for virtual VFAT (shadows a local directory)
- * 
+ *
  * Copyright (c) 2004,2005 Johannes E. Schindelin
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -38,7 +38,7 @@
 /* TODO: add ":bootsector=blabla.img:" */
 /* LATER TODO: add automatic boot sector generation from
     BOOTEASY.ASM and Ranish Partition Manager
-    Note that DOS assumes the system files to be the first files in the 
+    Note that DOS assumes the system files to be the first files in the
     file system (test if the boot sector still relies on that fact)! */
 /* MAYBE TODO: write block-visofs.c */
 /* TODO: call try_commit() only after a timeout */
@@ -153,7 +153,7 @@ static inline int array_roll(array_t* array,int index_to,int index_from,int coun
 	    index_to<0 || index_to>=array->next ||
 	    index_from<0 || index_from>=array->next)
 	return -1;
-    
+   
     if(index_to==index_from)
 	return 0;
@@ -167,7 +167,7 @@ static inline int array_roll(array_t* array,int index_to,int index_from,int coun
 	memmove(to+is*count,to,from-to);
     else
 	memmove(from,from+is*count,to-from);
-    
+   
     memcpy(to,buf,is*count);
     free(buf);
@@ -319,10 +319,10 @@ typedef struct BDRVVVFATState {
     BlockDriverState* bs; /* pointer to parent */
     unsigned int first_sectors_number; /* 1 for a single partition, 0x40 for a disk with partition table */
     unsigned char first_sectors[0x40*0x200];
-    
+   
     int fat_type; /* 16 or 32 */
     array_t fat,directory,mapping;
-   
+  
     unsigned int cluster_size;
     unsigned int sectors_per_cluster;
     unsigned int sectors_per_fat;
@@ -332,7 +332,7 @@ typedef struct BDRVVVFATState {
     uint32_t sector_count; /* total number of sectors of the partition */
     uint32_t cluster_count; /* total number of clusters of this partition */
     uint32_t max_fat_value;
-   
+  
     int current_fd;
     mapping_t* current_mapping;
     unsigned char* cluster; /* points to current cluster */
@@ -358,7 +358,7 @@ static void init_mbr(BDRVVVFATState* s)
     partition_t* partition=&(real_mbr->partition[0]);
     memset(s->first_sectors,0,512);
-   
+  
     partition->attributes=0x80; /* bootable */
     partition->start_head=1;
     partition->start_sector=1;
@@ -478,7 +478,7 @@ static inline uint8_t fat_chksum(const direntry_t* entry)
     for(i=0;i<11;i++)
 	chksum=(((chksum&0xfe)>>1)|((chksum&0x01)?0x80:0))
 	    +(unsigned char)entry->name[i];
-    
+   
     return chksum;
 }
@@ -554,7 +554,7 @@ static inline void init_fat(BDRVVVFATState* s)
 		s->sectors_per_fat * 0x200 / s->fat.item_size - 1);
     }
     memset(s->fat.pointer,0,s->fat.size);
-    
+   
     switch(s->fat_type) {
 	case 12: s->max_fat_value=0xfff; break;
 	case 16: s->max_fat_value=0xffff; break;
@@ -579,10 +579,10 @@ static inline direntry_t* create_short_and_long_name(BDRVVVFATState* s,
 	memcpy(entry->name,filename,strlen(filename));
 	return entry;
     }
-    
+   
     entry_long=create_long_filename(s,filename);
-  
-    i = strlen(filename); 
+ 
+    i = strlen(filename);
     for(j = i - 1; j>0  && filename[j]!='.';j--);
     if (j > 0)
 	i = (j > 8 ? 8 : j);
@@ -592,7 +592,7 @@ static inline direntry_t* create_short_and_long_name(BDRVVVFATState* s,
     entry=array_get_next(&(s->directory));
     memset(entry->name,0x20,11);
     strncpy(entry->name,filename,i);
-    
+   
     if(j > 0)
 	for (i = 0; i < 3 && filename[j+1+i]; i++)
 	    entry->extension[i] = filename[j+1+i];
@@ -618,7 +618,7 @@ static inline direntry_t* create_short_and_long_name(BDRVVVFATState* s,
 	if(entry1==entry) /* no dupe found */
 	    break;
-	/* use all 8 characters of name */	
+	/* use all 8 characters of name */
 	if(entry->name[7]==' ') {
 	    int j;
 	    for(j=6;j>0 && entry->name[j]==' ';j--)
@@ -675,11 +675,11 @@ static int read_directory(BDRVVVFATState* s, int mapping_index)
 	mapping->end = mapping->begin;
 	return -1;
     }
-   
+  
     i = mapping->info.dir.first_dir_index =
 	    first_cluster == 0 ? 0 : s->directory.next;
-    /* actually read the directory, and allocate the mappings */ 
+    /* actually read the directory, and allocate the mappings */
     while((entry=readdir(dir))) {
 	unsigned int length=strlen(dirname)+2+strlen(entry->d_name);
         char* buffer;
@@ -690,7 +690,7 @@ static int read_directory(BDRVVVFATState* s, int mapping_index)
 	if(first_cluster == 0 && (is_dotdot || is_dot))
 	    continue;
-	
+
 	buffer=(char*)malloc(length);
 	assert(buffer);
 	snprintf(buffer,length,"%s/%s",dirname,entry->d_name);
@@ -765,7 +765,7 @@ static int read_directory(BDRVVVFATState* s, int mapping_index)
 	memset(array_get(&(s->directory), cur), 0,
 		(ROOT_ENTRIES - cur) * sizeof(direntry_t));
     }
-	
+
      /* reget the mapping, since s->mapping was possibly realloc()ed */
     mapping = (mapping_t*)array_get(&(s->mapping), mapping_index);
     first_cluster += (s->directory.next - mapping->info.dir.first_dir_index)
@@ -774,7 +774,7 @@ static int read_directory(BDRVVVFATState* s, int mapping_index)
     direntry = (direntry_t*)array_get(&(s->directory), mapping->dir_index);
     set_begin_of_direntry(direntry, mapping->begin);
-   
+  
     return 0;
 }
@@ -825,7 +825,7 @@ static int init_directories(BDRVVVFATState* s,
      */
     i = 1+s->sectors_per_cluster*0x200*8/s->fat_type;
     s->sectors_per_fat=(s->sector_count+i)/i; /* round up */
-    
+   
     array_init(&(s->mapping),sizeof(mapping_t));
     array_init(&(s->directory),sizeof(direntry_t));
@@ -857,7 +857,7 @@ static int init_directories(BDRVVVFATState* s,
     for (i = 0, cluster = 0; i < s->mapping.next; i++) {
 	int j;
-	/* MS-DOS expects the FAT to be 0 for the root directory 
+	/* MS-DOS expects the FAT to be 0 for the root directory
 	 * (except for the media byte). */
 	/* LATER TODO: still true for FAT32? */
 	int fix_fat = (i != 0);
@@ -987,7 +987,7 @@ DLOG(if (stderr == NULL) {
     s->qcow_filename = NULL;
     s->fat2 = NULL;
     s->downcase_short_names = 1;
-    
+   
     if (!strstart(dirname, "fat:", NULL))
 	return -1;
@@ -1076,7 +1076,7 @@ static inline int find_mapping_for_cluster_aux(BDRVVVFATState* s,int cluster_num
 	assert(index1<=index2);
 	DLOG(mapping=array_get(&(s->mapping),index1);
 	assert(mapping->begin<=cluster_num);
-	assert(index2 >= s->mapping.next || 
+	assert(index2 >= s->mapping.next ||
 		((mapping = array_get(&(s->mapping),index2)) &&
 		mapping->end>cluster_num)));
     }
@@ -1239,7 +1239,7 @@ static void print_mapping(const mapping_t* mapping)
 }
 #endif
-static int vvfat_read(BlockDriverState *bs, int64_t sector_num, 
+static int vvfat_read(BlockDriverState *bs, int64_t sector_num,
                     uint8_t *buf, int nb_sectors)
 {
     BDRVVVFATState *s = bs->opaque;
@@ -1674,7 +1674,7 @@ static uint32_t get_cluster_count_for_direntry(BDRVVVFATState* s,
 }
 /*
- * This function looks at the modified data (qcow). 
+ * This function looks at the modified data (qcow).
  * It returns 0 upon inconsistency or error, and the number of clusters
  * used by the directory, its subdirectories and their files.
  */
@@ -1709,7 +1709,7 @@ static int check_directory_consistency(BDRVVVFATState *s,
     } else
 	/* new directory */
 	schedule_mkdir(s, cluster_num, strdup(path));
-		
+	
     lfn_init(&lfn);
     do {
 	int i;
@@ -2049,7 +2049,7 @@ static int commit_mappings(BDRVVVFATState* s,
 	    }
 	    next_mapping->dir_index = mapping->dir_index;
-	    next_mapping->first_mapping_index = 
+	    next_mapping->first_mapping_index =
 		mapping->first_mapping_index < 0 ?
 		array_index(&(s->mapping), mapping) :
 		mapping->first_mapping_index;
@@ -2069,7 +2069,7 @@ static int commit_mappings(BDRVVVFATState* s,
 	    mapping = next_mapping;
 	}
-		
+	
 	cluster = c1;
     }
@@ -2555,7 +2555,7 @@ static int do_commit(BDRVVVFATState* s)
 	return ret;
     }
-    /* copy FAT (with bdrv_read) */ 
+    /* copy FAT (with bdrv_read) */
     memcpy(s->fat.pointer, s->fat2, 0x200 * s->sectors_per_fat);
     /* recurse direntries from root (using bs->bdrv_read) */
@@ -2597,10 +2597,10 @@ DLOG(checkpoint());
     return do_commit(s);
 }
-static int vvfat_write(BlockDriverState *bs, int64_t sector_num, 
+static int vvfat_write(BlockDriverState *bs, int64_t sector_num,
                     const uint8_t *buf, int nb_sectors)
 {
-    BDRVVVFATState *s = bs->opaque; 
+    BDRVVVFATState *s = bs->opaque;
     int i, ret;
 DLOG(checkpoint());
@@ -2639,7 +2639,7 @@ DLOG(checkpoint());
 		    begin = sector_num;
 		if (end > sector_num + nb_sectors)
 		    end = sector_num + nb_sectors;
-		dir_index  = mapping->dir_index + 
+		dir_index  = mapping->dir_index +
 		    0x10 * (begin - mapping->begin * s->sectors_per_cluster);
 		direntries = (direntry_t*)(buf + 0x200 * (begin - sector_num));
@@ -2698,7 +2698,7 @@ static int vvfat_is_allocated(BlockDriverState *bs,
 	*n = nb_sectors;
     else if (*n < 0)
 	return 0;
-    return 1;	
+    return 1;
 }
 static int write_target_commit(BlockDriverState *bs, int64_t sector_num,
 /*
  * QEMU System Emulator block driver
- * 
+ *
  * Copyright (c) 2003 Fabrice Bellard
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -48,7 +48,7 @@ static BlockDriverAIOCB *bdrv_aio_write_em(BlockDriverState *bs,
         int64_t sector_num, const uint8_t *buf, int nb_sectors,
         BlockDriverCompletionFunc *cb, void *opaque);
 static void bdrv_aio_cancel_em(BlockDriverAIOCB *acb);
-static int bdrv_read_em(BlockDriverState *bs, int64_t sector_num, 
+static int bdrv_read_em(BlockDriverState *bs, int64_t sector_num,
                         uint8_t *buf, int nb_sectors);
 static int bdrv_write_em(BlockDriverState *bs, int64_t sector_num,
                          const uint8_t *buf, int nb_sectors);
@@ -167,7 +167,7 @@ BlockDriver *bdrv_find_format(const char *format_name)
     return NULL;
 }
-int bdrv_create(BlockDriver *drv, 
+int bdrv_create(BlockDriver *drv,
                 const char *filename, int64_t size_in_sectors,
                 const char *backing_file, int flags)
 {
@@ -180,7 +180,7 @@ int bdrv_create(BlockDriver *drv,
 void get_tmp_filename(char *filename, int size)
 {
     char temp_dir[MAX_PATH];
-    
+   
     GetTempPath(MAX_PATH, temp_dir);
     GetTempFileName(temp_dir, "qem", 0, filename);
 }
@@ -202,10 +202,10 @@ static int is_windows_drive_prefix(const char *filename)
              (filename[0] >= 'A' && filename[0] <= 'Z')) &&
             filename[1] == ':');
 }
-    
+   
 static int is_windows_drive(const char *filename)
 {
-    if (is_windows_drive_prefix(filename) && 
+    if (is_windows_drive_prefix(filename) &&
         filename[2] == '\0')
         return 1;
     if (strstart(filename, "\\\\.\\", NULL) ||
@@ -236,7 +236,7 @@ static BlockDriver *find_protocol(const char *filename)
     memcpy(protocol, filename, len);
     protocol[len] = '\0';
     for(drv1 = first_drv; drv1 != NULL; drv1 = drv1->next) {
-        if (drv1->protocol_name && 
+        if (drv1->protocol_name &&
             !strcmp(drv1->protocol_name, protocol))
             return drv1;
     }
@@ -251,7 +251,7 @@ static BlockDriver *find_image_format(const char *filename)
     BlockDriver *drv1, *drv;
     uint8_t buf[2048];
     BlockDriverState *bs;
-    
+   
     /* detect host devices. By convention, /dev/cdrom[N] is always
        recognized as a host CDROM */
     if (strstart(filename, "/dev/cdrom", NULL))
@@ -262,13 +262,13 @@ static BlockDriver *find_image_format(const char *filename)
 #else
     {
         struct stat st;
-        if (stat(filename, &st) >= 0 && 
+        if (stat(filename, &st) >= 0 &&
             (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode))) {
             return &bdrv_host_device;
         }
     }
 #endif
-    
+   
     drv = find_protocol(filename);
     /* no need to test disk image formats for vvfat */
     if (drv == &bdrv_vvfat)
@@ -324,7 +324,7 @@ int bdrv_open2(BlockDriverState *bs, const char *filename, int flags,
     int ret, open_flags;
     char tmp_filename[PATH_MAX];
     char backing_filename[PATH_MAX];
-    
+   
     bs->read_only = 0;
     bs->is_temporary = 0;
     bs->encrypted = 0;
@@ -332,7 +332,7 @@ int bdrv_open2(BlockDriverState *bs, const char *filename, int flags,
     if (flags & BDRV_O_SNAPSHOT) {
         BlockDriverState *bs1;
         int64_t total_size;
-        
+       
         /* if snapshot, we create a temporary backing file and open it
            instead of opening 'filename' directly */
@@ -347,10 +347,10 @@ int bdrv_open2(BlockDriverState *bs, const char *filename, int flags,
         }
         total_size = bdrv_getlength(bs1) >> SECTOR_BITS;
         bdrv_delete(bs1);
-        
+       
         get_tmp_filename(tmp_filename, sizeof(tmp_filename));
         realpath(filename, backing_filename);
-        if (bdrv_create(&bdrv_qcow2, tmp_filename, 
+        if (bdrv_create(&bdrv_qcow2, tmp_filename,
                         total_size, backing_filename, 0) < 0) {
             return -1;
         }
@@ -494,7 +494,7 @@ int bdrv_commit(BlockDriverState *bs)
 }
 /* return < 0 if error. See bdrv_write() for the return codes */
-int bdrv_read(BlockDriverState *bs, int64_t sector_num, 
+int bdrv_read(BlockDriverState *bs, int64_t sector_num,
               uint8_t *buf, int nb_sectors)
 {
     BlockDriver *drv = bs->drv;
@@ -525,13 +525,13 @@ int bdrv_read(BlockDriverState *bs, int64_t sector_num,
     }
 }
-/* Return < 0 if error. Important errors are: 
+/* Return < 0 if error. Important errors are:
   -EIO         generic I/O error (may happen for all errors)
   -ENOMEDIUM   No media inserted.
   -EINVAL      Invalid sector number or nb_sectors
   -EACCES      Trying to write a read-only device
 */
-int bdrv_write(BlockDriverState *bs, int64_t sector_num, 
+int bdrv_write(BlockDriverState *bs, int64_t sector_num,
                const uint8_t *buf, int nb_sectors)
 {
     BlockDriver *drv = bs->drv;
@@ -540,7 +540,7 @@ int bdrv_write(BlockDriverState *bs, int64_t sector_num,
     if (bs->read_only)
         return -EACCES;
     if (sector_num == 0 && bs->boot_sector_enabled && nb_sectors > 0) {
-        memcpy(bs->boot_sector_data, buf, 512);   
+        memcpy(bs->boot_sector_data, buf, 512);  
     }
     if (drv->bdrv_pwrite) {
         int ret, len;
@@ -557,7 +557,7 @@ int bdrv_write(BlockDriverState *bs, int64_t sector_num,
     }
 }
-static int bdrv_pread_em(BlockDriverState *bs, int64_t offset, 
+static int bdrv_pread_em(BlockDriverState *bs, int64_t offset,
                          uint8_t *buf, int count1)
 {
     uint8_t tmp_buf[SECTOR_SIZE];
@@ -601,7 +601,7 @@ static int bdrv_pread_em(BlockDriverState *bs, int64_t offset,
     return count1;
 }
-static int bdrv_pwrite_em(BlockDriverState *bs, int64_t offset, 
+static int bdrv_pwrite_em(BlockDriverState *bs, int64_t offset,
                           const uint8_t *buf, int count1)
 {
     uint8_t tmp_buf[SECTOR_SIZE];
@@ -650,9 +650,9 @@ static int bdrv_pwrite_em(BlockDriverState *bs, int64_t offset,
 }
 /**
- * Read with byte offsets (needed only for file protocols) 
+ * Read with byte offsets (needed only for file protocols)
  */
-int bdrv_pread(BlockDriverState *bs, int64_t offset, 
+int bdrv_pread(BlockDriverState *bs, int64_t offset,
                void *buf1, int count1)
 {
     BlockDriver *drv = bs->drv;
@@ -664,10 +664,10 @@ int bdrv_pread(BlockDriverState *bs, int64_t offset,
     return drv->bdrv_pread(bs, offset, buf1, count1);
 }
-/** 
- * Write with byte offsets (needed only for file protocols) 
+/**
+ * Write with byte offsets (needed only for file protocols)
  */
-int bdrv_pwrite(BlockDriverState *bs, int64_t offset, 
+int bdrv_pwrite(BlockDriverState *bs, int64_t offset,
                 const void *buf1, int count1)
 {
     BlockDriver *drv = bs->drv;
@@ -729,7 +729,7 @@ void bdrv_set_boot_sector(BlockDriverState *bs, const uint8_t *data, int size)
     memset(bs->boot_sector_data + size, 0, 512 - size);
 }
-void bdrv_set_geometry_hint(BlockDriverState *bs, 
+void bdrv_set_geometry_hint(BlockDriverState *bs,
                             int cyls, int heads, int secs)
 {
     bs->cyls = cyls;
@@ -749,7 +749,7 @@ void bdrv_set_translation_hint(BlockDriverState *bs, int translation)
     bs->translation = translation;
 }
-void bdrv_get_geometry_hint(BlockDriverState *bs, 
+void bdrv_get_geometry_hint(BlockDriverState *bs,
                             int *pcyls, int *pheads, int *psecs)
 {
     *pcyls = bs->cyls;
@@ -778,7 +778,7 @@ int bdrv_is_read_only(BlockDriverState *bs)
 }
 /* XXX: no longer used */
-void bdrv_set_change_cb(BlockDriverState *bs, 
+void bdrv_set_change_cb(BlockDriverState *bs,
                         void (*change_cb)(void *opaque), void *opaque)
 {
     bs->change_cb = change_cb;
@@ -816,7 +816,7 @@ void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size)
     }
 }
-void bdrv_iterate_format(void (*it)(void *opaque, const char *name), 
+void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
                          void *opaque)
 {
     BlockDriver *drv;
@@ -899,7 +899,7 @@ void bdrv_info(void)
     }
 }
-void bdrv_get_backing_filename(BlockDriverState *bs, 
+void bdrv_get_backing_filename(BlockDriverState *bs,
                                char *filename, int filename_size)
 {
     if (!bs->backing_hd) {
@@ -909,7 +909,7 @@ void bdrv_get_backing_filename(BlockDriverState *bs,
     }
 }
-int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num, 
+int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,
                           const uint8_t *buf, int nb_sectors)
 {
     BlockDriver *drv = bs->drv;
@@ -919,7 +919,7 @@ int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,
         return -ENOTSUP;
     return drv->bdrv_write_compressed(bs, sector_num, buf, nb_sectors);
 }
-    
+   
 int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
 {
     BlockDriver *drv = bs->drv;
@@ -934,7 +934,7 @@ int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
 /**************************************************************/
 /* handling of snapshots */
-int bdrv_snapshot_create(BlockDriverState *bs, 
+int bdrv_snapshot_create(BlockDriverState *bs,
                          QEMUSnapshotInfo *sn_info)
 {
     BlockDriver *drv = bs->drv;
@@ -945,7 +945,7 @@ int bdrv_snapshot_create(BlockDriverState *bs,
     return drv->bdrv_snapshot_create(bs, sn_info);
 }
-int bdrv_snapshot_goto(BlockDriverState *bs, 
+int bdrv_snapshot_goto(BlockDriverState *bs,
                        const char *snapshot_id)
 {
     BlockDriver *drv = bs->drv;
@@ -966,7 +966,7 @@ int bdrv_snapshot_delete(BlockDriverState *bs, const char *snapshot_id)
     return drv->bdrv_snapshot_delete(bs, snapshot_id);
 }
-int bdrv_snapshot_list(BlockDriverState *bs, 
+int bdrv_snapshot_list(BlockDriverState *bs,
                        QEMUSnapshotInfo **psn_info)
 {
     BlockDriver *drv = bs->drv;
@@ -991,12 +991,12 @@ char *get_human_readable_size(char *buf, int buf_size, int64_t size)
         base = 1024;
         for(i = 0; i < NB_SUFFIXES; i++) {
             if (size < (10 * base)) {
-                snprintf(buf, buf_size, "%0.1f%c", 
+                snprintf(buf, buf_size, "%0.1f%c",
                          (double)size / base,
                          suffixes[i]);
                 break;
             } else if (size < (1000 * base) || i == (NB_SUFFIXES - 1)) {
-                snprintf(buf, buf_size, "%" PRId64 "%c", 
+                snprintf(buf, buf_size, "%" PRId64 "%c",
                          ((size + (base >> 1)) / base),
                          suffixes[i]);
                 break;
@@ -1019,8 +1019,8 @@ char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn)
     int64_t secs;
     if (!sn) {
-        snprintf(buf, buf_size, 
-                 "%-10s%-20s%7s%20s%15s", 
+        snprintf(buf, buf_size,
+                 "%-10s%-20s%7s%20s%15s",
                  "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK");
     } else {
         ti = sn->date_sec;
@@ -1038,10 +1038,10 @@ char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn)
                  "%02d:%02d:%02d.%03d",
                  (int)(secs / 3600),
                  (int)((secs / 60) % 60),
-                 (int)(secs % 60), 
+                 (int)(secs % 60),
                  (int)((sn->vm_clock_nsec / 1000000) % 1000));
         snprintf(buf, buf_size,
-                 "%-10s%-20s%7s%20s%15s", 
+                 "%-10s%-20s%7s%20s%15s",
                  sn->id_str, sn->name,
                  get_human_readable_size(buf1, sizeof(buf1), sn->vm_state_size),
                  date_buf,
@@ -1062,7 +1062,7 @@ BlockDriverAIOCB *bdrv_aio_read(BlockDriverState *bs, int64_t sector_num,
     if (!drv)
         return NULL;
-    
+   
     /* XXX: we assume that nb_sectors == 0 is suppored by the async read */
     if (sector_num == 0 && bs->boot_sector_enabled && nb_sectors > 0) {
         memcpy(buf, bs->boot_sector_data, 512);
@@ -1085,7 +1085,7 @@ BlockDriverAIOCB *bdrv_aio_write(BlockDriverState *bs, int64_t sector_num,
     if (bs->read_only)
         return NULL;
     if (sector_num == 0 && bs->boot_sector_enabled && nb_sectors > 0) {
-        memcpy(bs->boot_sector_data, buf, 512);   
+        memcpy(bs->boot_sector_data, buf, 512);  
     }
     return drv->bdrv_aio_write(bs, sector_num, buf, nb_sectors, cb, opaque);
@@ -1184,7 +1184,7 @@ static void bdrv_rw_em_cb(void *opaque, int ret)
 #define NOT_DONE 0x7fffffff
-static int bdrv_read_em(BlockDriverState *bs, int64_t sector_num, 
+static int bdrv_read_em(BlockDriverState *bs, int64_t sector_num,
                         uint8_t *buf, int nb_sectors)
 {
     int async_ret;
@@ -1192,7 +1192,7 @@ static int bdrv_read_em(BlockDriverState *bs, int64_t sector_num,
     async_ret = NOT_DONE;
     qemu_aio_wait_start();
-    acb = bdrv_aio_read(bs, sector_num, buf, nb_sectors, 
+    acb = bdrv_aio_read(bs, sector_num, buf, nb_sectors,
                         bdrv_rw_em_cb, &async_ret);
     if (acb == NULL) {
         qemu_aio_wait_end();
@@ -1213,7 +1213,7 @@ static int bdrv_write_em(BlockDriverState *bs, int64_t sector_num,
     async_ret = NOT_DONE;
     qemu_aio_wait_start();
-    acb = bdrv_aio_write(bs, sector_num, buf, nb_sectors, 
+    acb = bdrv_aio_write(bs, sector_num, buf, nb_sectors,
                          bdrv_rw_em_cb, &async_ret);
     if (acb == NULL) {
         qemu_aio_wait_end();
@@ -1293,7 +1293,7 @@ int bdrv_is_inserted(BlockDriverState *bs)
 /**
  * Return TRUE if the media changed since the last call to this
- * function. It is currently only used for floppy disks 
+ * function. It is currently only used for floppy disks
  */
 int bdrv_media_changed(BlockDriverState *bs)
 {
 /*
  * QEMU System Emulator block driver
- * 
+ *
  * Copyright (c) 2003 Fabrice Bellard
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -29,12 +29,12 @@ struct BlockDriver {
     int instance_size;
     int (*bdrv_probe)(const uint8_t *buf, int buf_size, const char *filename);
     int (*bdrv_open)(BlockDriverState *bs, const char *filename, int flags);
-    int (*bdrv_read)(BlockDriverState *bs, int64_t sector_num, 
+    int (*bdrv_read)(BlockDriverState *bs, int64_t sector_num,
                      uint8_t *buf, int nb_sectors);
-    int (*bdrv_write)(BlockDriverState *bs, int64_t sector_num, 
+    int (*bdrv_write)(BlockDriverState *bs, int64_t sector_num,
                       const uint8_t *buf, int nb_sectors);
     void (*bdrv_close)(BlockDriverState *bs);
-    int (*bdrv_create)(const char *filename, int64_t total_sectors, 
+    int (*bdrv_create)(const char *filename, int64_t total_sectors,
                        const char *backing_file, int flags);
     void (*bdrv_flush)(BlockDriverState *bs);
     int (*bdrv_is_allocated)(BlockDriverState *bs, int64_t sector_num,
@@ -52,21 +52,21 @@ struct BlockDriver {
     int aiocb_size;
     const char *protocol_name;
-    int (*bdrv_pread)(BlockDriverState *bs, int64_t offset, 
+    int (*bdrv_pread)(BlockDriverState *bs, int64_t offset,
                       uint8_t *buf, int count);
-    int (*bdrv_pwrite)(BlockDriverState *bs, int64_t offset, 
+    int (*bdrv_pwrite)(BlockDriverState *bs, int64_t offset,
                        const uint8_t *buf, int count);
     int (*bdrv_truncate)(BlockDriverState *bs, int64_t offset);
     int64_t (*bdrv_getlength)(BlockDriverState *bs);
-    int (*bdrv_write_compressed)(BlockDriverState *bs, int64_t sector_num, 
+    int (*bdrv_write_compressed)(BlockDriverState *bs, int64_t sector_num,
                                  const uint8_t *buf, int nb_sectors);
-    int (*bdrv_snapshot_create)(BlockDriverState *bs, 
+    int (*bdrv_snapshot_create)(BlockDriverState *bs,
                                 QEMUSnapshotInfo *sn_info);
-    int (*bdrv_snapshot_goto)(BlockDriverState *bs, 
+    int (*bdrv_snapshot_goto)(BlockDriverState *bs,
                               const char *snapshot_id);
     int (*bdrv_snapshot_delete)(BlockDriverState *bs, const char *snapshot_id);
-    int (*bdrv_snapshot_list)(BlockDriverState *bs, 
+    int (*bdrv_snapshot_list)(BlockDriverState *bs,
                               QEMUSnapshotInfo **psn_info);
     int (*bdrv_get_info)(BlockDriverState *bs, BlockDriverInfo *bdi);
@@ -75,7 +75,7 @@ struct BlockDriver {
     int (*bdrv_media_changed)(BlockDriverState *bs);
     int (*bdrv_eject)(BlockDriverState *bs, int eject_flag);
     int (*bdrv_set_locked)(BlockDriverState *bs, int locked);
-    
+   
     BlockDriverAIOCB *free_aiocb;
     struct BlockDriver *next;
 };
@@ -107,7 +107,7 @@ struct BlockDriverState {
     /* async read/write emulation */
     void *sync_aiocb;
-    
+   
     /* NOTE: the following infos are only hints for real hardware
        drivers. They are not used by the block driver */
     int cyls, heads, secs, translation;
@@ -48,12 +48,12 @@ static inline uint16_t bswap16(uint16_t x)
     return bswap_16(x);
 }
-static inline uint32_t bswap32(uint32_t x) 
+static inline uint32_t bswap32(uint32_t x)
 {
     return bswap_32(x);
 }
-static inline uint64_t bswap64(uint64_t x) 
+static inline uint64_t bswap64(uint64_t x)
 {
     return bswap_64(x);
 }
 /*
  * QEMU Cocoa display driver
- * 
+ *
  * Copyright (c) 2005 Pierre d'Herbemont
  *                    many code/inspiration from SDL 1.2 code (LGPL)
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -23,7 +23,7 @@
  * THE SOFTWARE.
  */
 /*
-    Todo :    x  miniaturize window 
+    Todo :    x  miniaturize window
               x  center the window
               -  save window position
               -  handle keyboard event
@@ -84,7 +84,7 @@ static void cocoa_update(DisplayState *ds, int x, int y, int w, int h)
     MacSetRectRgn (temp, x, y,
                         x + w, y + h);
     MacUnionRgn (dirty, temp, dirty);
-                
+               
     /* Flush the dirty region */
     QDFlushPortBuffer ( [ qd_view  qdPort ], dirty );
     DisposeRgn (dirty);
@@ -102,9 +102,9 @@ static void cocoa_resize(DisplayState *ds, int w, int h)
     static void *screen_pixels;
     static int  screen_pitch;
     NSRect contentRect;
-    
+   
     //printf("resizing to %d %d\n", w, h);
-    
+   
     contentRect = NSMakeRect (0, 0, w, h);
     if(window)
     {
@@ -119,44 +119,44 @@ static void cocoa_resize(DisplayState *ds, int w, int h)
         fprintf(stderr, "(cocoa) can't create window\n");
         exit(1);
     }
-    
+   
     if(qd_view)
         [qd_view release];
-    
+   
     qd_view = [ [ NSQuickDrawView alloc ] initWithFrame:contentRect ];
-    
+   
     if(!qd_view)
     {
          fprintf(stderr, "(cocoa) can't create qd_view\n");
         exit(1);
     }
-    
+   
     [ window setAcceptsMouseMovedEvents:YES ];
     [ window setTitle:@"Qemu" ];
     [ window setReleasedWhenClosed:NO ];
-    
+   
     /* Set screen to black */
     [ window setBackgroundColor: [NSColor blackColor] ];
-    
+   
     /* set window position */
     [ window center ];
-    
+   
     [ qd_view setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
     [ [ window contentView ] addSubview:qd_view ];
     [ qd_view release ];
     [ window makeKeyAndOrderFront:nil ];
-    
+   
     /* Careful here, the window seems to have to be onscreen to do that */
     LockPortBits ( [ qd_view qdPort ] );
     screen_pixels = GetPixBaseAddr ( GetPortPixMap ( [ qd_view qdPort ] ) );
     screen_pitch  = GetPixRowBytes ( GetPortPixMap ( [ qd_view qdPort ] ) );
     UnlockPortBits ( [ qd_view qdPort ] );
-    { 
-            int vOffset = [ window frame ].size.height - 
+    {
+            int vOffset = [ window frame ].size.height -
                 [ qd_view frame ].size.height - [ qd_view frame ].origin.y;
-            
+           
             int hOffset = [ qd_view frame ].origin.x;
-                    
+                   
             screen_pixels += (vOffset * screen_pitch) + hOffset * (device_bpp/8);
     }
     ds->data = screen_pixels;
@@ -310,38 +310,38 @@ int keymap[] =
     208,//  125     0x7D    0xd0    E0,50   D ARROW QZ_DOWN
     200,//  126     0x7E    0xc8    E0,48   U ARROW QZ_UP
 /* completed according to http://www.libsdl.org/cgi/cvsweb.cgi/SDL12/src/video/quartz/SDL_QuartzKeys.h?rev=1.6&content-type=text/x-cvsweb-markup */
-  
+ 
 /* Aditional 104 Key XP-Keyboard Scancodes from http://www.computer-engineering.org/ps2keyboard/scancodes1.html */
 /*
-    219 //          0xdb            e0,5b   L GUI   
-    220 //          0xdc            e0,5c   R GUI   
-    221 //          0xdd            e0,5d   APPS    
-        //              E0,2A,E0,37         PRNT SCRN   
-        //              E1,1D,45,E1,9D,C5   PAUSE   
-    83  //          0x53    0x53            KP .    
-// ACPI Scan Codes                              
-    222 //          0xde            E0, 5E  Power   
-    223 //          0xdf            E0, 5F  Sleep   
-    227 //          0xe3            E0, 63  Wake    
-// Windows Multimedia Scan Codes                                
-    153 //          0x99            E0, 19  Next Track  
-    144 //          0x90            E0, 10  Previous Track  
-    164 //          0xa4            E0, 24  Stop    
-    162 //          0xa2            E0, 22  Play/Pause  
-    160 //          0xa0            E0, 20  Mute    
-    176 //          0xb0            E0, 30  Volume Up   
-    174 //          0xae            E0, 2E  Volume Down 
-    237 //          0xed            E0, 6D  Media Select    
-    236 //          0xec            E0, 6C  E-Mail  
-    161 //          0xa1            E0, 21  Calculator  
-    235 //          0xeb            E0, 6B  My Computer 
-    229 //          0xe5            E0, 65  WWW Search  
-    178 //          0xb2            E0, 32  WWW Home    
-    234 //          0xea            E0, 6A  WWW Back    
-    233 //          0xe9            E0, 69  WWW Forward 
-    232 //          0xe8            E0, 68  WWW Stop    
-    231 //          0xe7            E0, 67  WWW Refresh 
-    230 //          0xe6            E0, 66  WWW Favorites   
+    219 //          0xdb            e0,5b   L GUI  
+    220 //          0xdc            e0,5c   R GUI  
+    221 //          0xdd            e0,5d   APPS   
+        //              E0,2A,E0,37         PRNT SCRN  
+        //              E1,1D,45,E1,9D,C5   PAUSE  
+    83  //          0x53    0x53            KP .   
+// ACPI Scan Codes                             
+    222 //          0xde            E0, 5E  Power  
+    223 //          0xdf            E0, 5F  Sleep  
+    227 //          0xe3            E0, 63  Wake   
+// Windows Multimedia Scan Codes                               
+    153 //          0x99            E0, 19  Next Track 
+    144 //          0x90            E0, 10  Previous Track 
+    164 //          0xa4            E0, 24  Stop   
+    162 //          0xa2            E0, 22  Play/Pause 
+    160 //          0xa0            E0, 20  Mute   
+    176 //          0xb0            E0, 30  Volume Up  
+    174 //          0xae            E0, 2E  Volume Down
+    237 //          0xed            E0, 6D  Media Select   
+    236 //          0xec            E0, 6C  E-Mail 
+    161 //          0xa1            E0, 21  Calculator 
+    235 //          0xeb            E0, 6B  My Computer
+    229 //          0xe5            E0, 65  WWW Search 
+    178 //          0xb2            E0, 32  WWW Home   
+    234 //          0xea            E0, 6A  WWW Back   
+    233 //          0xe9            E0, 69  WWW Forward
+    232 //          0xe8            E0, 68  WWW Stop   
+    231 //          0xe7            E0, 67  WWW Refresh
+    230 //          0xe6            E0, 66  WWW Favorites  
 */
 };
@@ -366,10 +366,10 @@ static void cocoa_refresh(DisplayState *ds)
     NSDate *distantPast;
     NSEvent *event;
     NSAutoreleasePool *pool;
-    
+   
     pool = [ [ NSAutoreleasePool alloc ] init ];
     distantPast = [ NSDate distantPast ];
-    
+   
     vga_hw_update();
     do {
@@ -415,8 +415,8 @@ static void cocoa_refresh(DisplayState *ds)
                 case NSKeyDown:
                     {
-                        int keycode = cocoa_keycode_to_qemu([event keyCode]);               
-                        
+                        int keycode = cocoa_keycode_to_qemu([event keyCode]);              
+                       
                         /* handle command Key Combos */
                         if ([event modifierFlags] & NSCommandKeyMask) {
                             switch ([event keyCode]) {
@@ -427,7 +427,7 @@ static void cocoa_refresh(DisplayState *ds)
                                     return;
                             }
                         }
-                        
+                       
                         /* handle control + alt Key Combos */
                         if (([event modifierFlags] & NSControlKeyMask) && ([event modifierFlags] & NSAlternateKeyMask)) {
                             switch (keycode) {
@@ -482,10 +482,10 @@ static void cocoa_refresh(DisplayState *ds)
                         }
                     }
                     break;
-                    
+                   
                 case NSKeyUp:
                     {
-                        int keycode = cocoa_keycode_to_qemu([event keyCode]);   
+                        int keycode = cocoa_keycode_to_qemu([event keyCode]);  
                         if (is_graphic_console()) {
                             if (keycode & 0x80)
                                 kbd_put_keycode(0xe0);
@@ -493,7 +493,7 @@ static void cocoa_refresh(DisplayState *ds)
                         }
                     }
                     break;
-                    
+                   
                 case NSMouseMoved:
                     if (grab) {
                         int dx = [event deltaX];
@@ -503,11 +503,11 @@ static void cocoa_refresh(DisplayState *ds)
                         kbd_mouse_event(dx, dy, dz, buttons);
                     }
                     break;
-                        
+                       
                 case NSLeftMouseDown:
                     if (grab) {
                         int buttons = 0;
-                        
+                       
                         /* leftclick+command simulates rightclick */
                         if ([event modifierFlags] & NSCommandKeyMask) {
                             buttons |= MOUSE_EVENT_RBUTTON;
@@ -519,7 +519,7 @@ static void cocoa_refresh(DisplayState *ds)
                         [NSApp sendEvent: event];
                     }
                     break;
-                        
+                       
                 case NSLeftMouseDragged:
                     if (grab) {
                         int dx = [event deltaX];
@@ -534,7 +534,7 @@ static void cocoa_refresh(DisplayState *ds)
                         kbd_mouse_event(dx, dy, dz, buttons);
                     }
                     break;
-                        
+                       
                 case NSLeftMouseUp:
                     if (grab) {
                         kbd_mouse_event(0, 0, 0, 0);
@@ -546,18 +546,18 @@ static void cocoa_refresh(DisplayState *ds)
                         //[NSApp sendEvent: event];
                     }
                     break;
-                        
+                       
                 case NSRightMouseDown:
                     if (grab) {
                         int buttons = 0;
-                        
+                       
                         buttons |= MOUSE_EVENT_RBUTTON;
                         kbd_mouse_event(0, 0, 0, buttons);
                     } else {
                         [NSApp sendEvent: event];
                     }
                     break;
-                    
+                   
                 case NSRightMouseDragged:
                     if (grab) {
                         int dx = [event deltaX];
@@ -568,7 +568,7 @@ static void cocoa_refresh(DisplayState *ds)
                         kbd_mouse_event(dx, dy, dz, buttons);
                     }
                     break;
-                    
+                   
                 case NSRightMouseUp:
                     if (grab) {
                         kbd_mouse_event(0, 0, 0, 0);
@@ -576,7 +576,7 @@ static void cocoa_refresh(DisplayState *ds)
                         [NSApp sendEvent: event];
                     }
                     break;
-                        
+                       
                 case NSOtherMouseDragged:
                     if (grab) {
                         int dx = [event deltaX];
@@ -587,7 +587,7 @@ static void cocoa_refresh(DisplayState *ds)
                         kbd_mouse_event(dx, dy, dz, buttons);
                     }
                     break;
-                    
+                   
                 case NSOtherMouseDown:
                     if (grab) {
                         int buttons = 0;
@@ -597,7 +597,7 @@ static void cocoa_refresh(DisplayState *ds)
                         [NSApp sendEvent:event];
                     }
                     break;
-                        
+                       
                 case NSOtherMouseUp:
                     if (grab) {
                         kbd_mouse_event(0, 0, 0, 0);
@@ -605,14 +605,14 @@ static void cocoa_refresh(DisplayState *ds)
                         [NSApp sendEvent: event];
                     }
                     break;
-                        
+                       
                 case NSScrollWheel:
                     if (grab) {
                         int dz = [event deltaY];
                         kbd_mouse_event(0, 0, -dz, 0);
                     }
                     break;
-                
+               
                 default: [NSApp sendEvent:event];
             }
         }
@@ -625,7 +625,7 @@ static void cocoa_refresh(DisplayState *ds)
  ------------------------------------------------------
 */
-static void cocoa_cleanup(void) 
+static void cocoa_cleanup(void)
 {
 }
@@ -641,9 +641,9 @@ void cocoa_display_init(DisplayState *ds, int full_screen)
     ds->dpy_update = cocoa_update;
     ds->dpy_resize = cocoa_resize;
     ds->dpy_refresh = cocoa_refresh;
-    
+   
     cocoa_resize(ds, 640, 400);
-    
+   
     atexit(cocoa_cleanup);
 }
@@ -661,17 +661,17 @@ void cocoa_display_init(DisplayState *ds, int full_screen)
  ------------------------------------------------------
 */
 static void QZ_SetPortAlphaOpaque ()
-{    
+{   
     /* Assume 32 bit if( bpp == 32 )*/
     if ( 1 ) {
-    
+   
         uint32_t    *pixels = (uint32_t*) current_ds.data;
         uint32_t    rowPixels = current_ds.linesize / 4;
         uint32_t    i, j;
-        
+       
         for (i = 0; i < current_ds.height; i++)
             for (j = 0; j < current_ds.width; j++) {
-        
+       
                 pixels[ (i * rowPixels) + j ] |= 0xFF000000;
             }
     }
@@ -680,32 +680,32 @@ static void QZ_SetPortAlphaOpaque ()
 @implementation QemuWindow
 - (void)miniaturize:(id)sender
 {
-        
+       
     /* make the alpha channel opaque so anim won't have holes in it */
     QZ_SetPortAlphaOpaque ();
-    
+   
     [ super miniaturize:sender ];
-    
+   
 }
 - (void)display
-{    
-    /* 
+{   
+    /*
         This method fires just before the window deminaturizes from the Dock.
-        
+       
         We'll save the current visible surface, let the window manager redraw any
-        UI elements, and restore the SDL surface. This way, no expose event 
+        UI elements, and restore the SDL surface. This way, no expose event
         is required, and the deminiaturize works perfectly.
     */
-    
+   
     /* make sure pixels are fully opaque */
     QZ_SetPortAlphaOpaque ();
-    
+   
     /* save current visible SDL surface */
     [ self cacheImageInRect:[ qd_view frame ] ];
-    
+   
     /* let the window manager redraw controls, border, etc */
     [ super display ];
-    
+   
     /* restore visible SDL surface */
     [ self restoreCachedImage ];
 }
@@ -742,13 +742,13 @@ static void QZ_SetPortAlphaOpaque ()
     if( gArgc <= 1 || strncmp (gArgv[1], "-psn", 4) == 0)
     {
         NSOpenPanel *op = [[NSOpenPanel alloc] init];
-        
+       
         cocoa_resize(&current_ds, 640, 400);
-        
+       
         [op setPrompt:@"Boot image"];
-        
+       
         [op setMessage:@"Select the disk image you want to boot.\n\nHit the \"Cancel\" button to quit"];
-        
+       
         [op beginSheetForDirectory:nil file:nil types:[NSArray arrayWithObjects:@"img",@"iso",@"dmg",@"qcow",@"cow",@"cloop",@"vmdk",nil]
               modalForWindow:window modalDelegate:self
               didEndSelector:@selector(openPanelDidEnd:returnCode:contextInfo:) contextInfo:NULL];
@@ -774,20 +774,20 @@ static void QZ_SetPortAlphaOpaque ()
     {
         exit(0);
     }
-    
+   
     if(returnCode == NSOKButton)
     {
         char *bin = "qemu";
         char *img = (char*)[ [ sheet filename ] cString];
-        
+       
         char **argv = (char**)malloc( sizeof(char*)*3 );
-        
+       
         asprintf(&argv[0], "%s", bin);
         asprintf(&argv[1], "-hda");
         asprintf(&argv[2], "%s", img);
-        
+       
         printf("Using argc %d argv %s -hda %s\n", 3, bin, img);
-        
+       
         [self startEmulationWithArgc:3 argv:(char**)argv];
     }
 }
@@ -827,10 +827,10 @@ static void setApplicationMenu(void)
     NSMenuItem *menuItem;
     NSString *title;
     NSString *appName;
-    
+   
     appName = @"Qemu";
     appleMenu = [[NSMenu alloc] initWithTitle:@""];
-    
+   
     /* Add menu items */
     title = [@"About " stringByAppendingString:appName];
     [appleMenu addItemWithTitle:title action:@selector(orderFrontStandardAboutPanel:) keyEquivalent:@""];
@@ -850,7 +850,7 @@ static void setApplicationMenu(void)
     title = [@"Quit " stringByAppendingString:appName];
     [appleMenu addItemWithTitle:title action:@selector(terminate:) keyEquivalent:@"q"];
-    
+   
     /* Put menu into the menubar */
     menuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
     [menuItem setSubmenu:appleMenu];
@@ -872,17 +872,17 @@ static void setupWindowMenu(void)
     NSMenuItem  *menuItem;
     windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
-    
+   
     /* "Minimize" item */
     menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
     [windowMenu addItem:menuItem];
     [menuItem release];
-    
+   
     /* Put menu into the menubar */
     windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
     [windowMenuItem setSubmenu:windowMenu];
     [[NSApp mainMenu] addItem:windowMenuItem];
-    
+   
     /* Tell the application object that this is now the window menu */
     [NSApp setWindowsMenu:windowMenu];
@@ -896,14 +896,14 @@ static void CustomApplicationMain(void)
     NSAutoreleasePool   *pool = [[NSAutoreleasePool alloc] init];
     QemuCocoaGUIController *gui_controller;
     CPSProcessSerNum PSN;
-    
+   
     [NSApplication sharedApplication];
-    
+   
     if (!CPSGetCurrentProcess(&PSN))
         if (!CPSEnableForegroundOperation(&PSN,0x03,0x3C,0x2C,0x1103))
             if (!CPSSetFrontProcess(&PSN))
                 [NSApplication sharedApplication];
-                
+               
     /* Set up the menubar */
     [NSApp setMainMenu:[[NSMenu alloc] init]];
     setApplicationMenu();
@@ -912,10 +912,10 @@ static void CustomApplicationMain(void)
     /* Create SDLMain and make it the app delegate */
     gui_controller = [[QemuCocoaGUIController alloc] init];
     [NSApp setDelegate:gui_controller];
-    
+   
     /* Start the main event loop */
     [NSApp run];
-    
+   
     [gui_controller release];
     [pool release];
 }
@@ -403,7 +403,7 @@ if test &quot;$mingw32&quot; = &quot;yes&quot; ; then
     oss="no"
 fi
-# Check for gcc4, error if pre-gcc4 
+# Check for gcc4, error if pre-gcc4
 if test "$check_gcc" = "yes" ; then
     cat > $TMPC <<EOF
 #if __GNUC__ < 4
@@ -444,7 +444,7 @@ if test &quot;$solaris&quot; = &quot;yes&quot; ; then
   #
   # gcc for solaris 10/fcs in /usr/sfw/bin doesn't compile qemu correctly
   # override the check with --disable-gcc-check
-  # 
+  #
   if test "$solarisrev" -eq 10 -a "$check_gcc" = "yes" ; then
     solgcc=`which $cc`
     if test "$solgcc" = "/usr/sfw/bin/gcc" ; then
@@ -475,7 +475,7 @@ if test &quot;$solaris&quot; = &quot;yes&quot; ; then
     fi
     exit 1
   fi
-fi 
+fi
 if test -z "$target_list" ; then
 /*
  * QEMU graphical console
- * 
+ *
  * Copyright (c) 2004 Fabrice Bellard
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
@@ -180,8 +180,8 @@ static unsigned int vga_get_color(DisplayState *ds, unsigned int rgba)
         r = (rgba >> 16) & 0xff;
         g = (rgba >> 8) & 0xff;
         b = (rgba) & 0xff;
-        color = (rgb_to_index[r] * 6 * 6) + 
-            (rgb_to_index[g] * 6) + 
+        color = (rgb_to_index[r] * 6 * 6) +
+            (rgb_to_index[g] * 6) +
             (rgb_to_index[b]);
         break;
 #endif
@@ -205,14 +205,14 @@ static unsigned int vga_get_color(DisplayState *ds, unsigned int rgba)
     return color;
 }
-static void vga_fill_rect (DisplayState *ds, 
+static void vga_fill_rect (DisplayState *ds,
                            int posx, int posy, int width, int height, uint32_t color)
 {
     uint8_t *d, *d1;
     int x, y, bpp;
-    
+   
     bpp = (ds->depth + 7) >> 3;
-    d1 = ds->data + 
+    d1 = ds->data +
         ds->linesize * posy + bpp * posx;
     for (y = 0; y < height; y++) {
         d = d1;
@@ -250,9 +250,9 @@ static void vga_bitblt(DisplayState *ds, int xs, int ys, int xd, int yd, int w, 
     bpp = (ds->depth + 7) >> 3;
     wb = w * bpp;
     if (yd <= ys) {
-        s = ds->data + 
+        s = ds->data +
             ds->linesize * ys + bpp * xs;
-        d = ds->data + 
+        d = ds->data +
             ds->linesize * yd + bpp * xd;
         for (y = 0; y < h; y++) {
             memmove(d, s, wb);
@@ -260,9 +260,9 @@ static void vga_bitblt(DisplayState *ds, int xs, int ys, int xd, int yd, int w, 
             s += ds->linesize;
         }
     } else {
-        s = ds->data + 
+        s = ds->data +
             ds->linesize * (ys + h - 1) + bpp * xs;
-        d = ds->data + 
+        d = ds->data +
             ds->linesize * (yd + h - 1) + bpp * xd;
        for (y = 0; y < h; y++) {
             memmove(d, s, wb);
@@ -405,7 +405,7 @@ static void console_print_text_attributes(TextAttributes *t_attrib, char ch)
 }
 #endif
-static void vga_putcharxy(DisplayState *ds, int x, int y, int ch, 
+static void vga_putcharxy(DisplayState *ds, int x, int y, int ch,
                           TextAttributes *t_attrib)
 {
     uint8_t *d;
@@ -428,7 +428,7 @@ static void vga_putcharxy(DisplayState *ds, int x, int y, int ch,
     }
     bpp = (ds->depth + 7) >> 3;
-    d = ds->data + 
+    d = ds->data +
         ds->linesize * y * FONT_HEIGHT + bpp * x * FONT_WIDTH;
     linesize = ds->linesize;
     font_ptr = vgafont16 + FONT_HEIGHT * ch;
@@ -525,9 +525,9 @@ static void update_xy(TextConsole *s, int x, int y)
             y2 += s->total_height;
         if (y2 < s->height) {
             c = &s->cells[y1 * s->width + x];
-            vga_putcharxy(s->ds, x, y2, c->ch, 
+            vga_putcharxy(s->ds, x, y2, c->ch,
                           &(c->t_attrib));
-            dpy_update(s->ds, x * FONT_WIDTH, y2 * FONT_HEIGHT, 
+            dpy_update(s->ds, x * FONT_WIDTH, y2 * FONT_HEIGHT,
                        FONT_WIDTH, FONT_HEIGHT);
         }
     }
@@ -556,7 +556,7 @@ static void console_show_cursor(TextConsole *s, int show)
             } else {
                 vga_putcharxy(s->ds, x, y, c->ch, &(c->t_attrib));
             }
-            dpy_update(s->ds, x * FONT_WIDTH, y * FONT_HEIGHT, 
+            dpy_update(s->ds, x * FONT_WIDTH, y * FONT_HEIGHT,
                        FONT_WIDTH, FONT_HEIGHT);
         }
     }
@@ -567,7 +567,7 @@ static void console_refresh(TextConsole *s)
     TextCell *c;
     int x, y, y1;
-    if (s != active_console) 
+    if (s != active_console)
         return;
     vga_fill_rect(s->ds, 0, 0, s->ds->width, s->ds->height,
@@ -576,7 +576,7 @@ static void console_refresh(TextConsole *s)
     for(y = 0; y < s->height; y++) {
         c = s->cells + y1 * s->width;
         for(x = 0; x < s->width; x++) {
-            vga_putcharxy(s->ds, x, y, c->ch, 
+            vga_putcharxy(s->ds, x, y, c->ch,
                           &(c->t_attrib));
             c++;
         }
@@ -591,7 +591,7 @@ static void console_scroll(int ydelta)
 {
     TextConsole *s;
     int i, y1;
-    
+   
     s = active_console;
     if (!s || (s->console_type == GRAPHIC_CONSOLE))
         return;
@@ -646,13 +646,13 @@ static void console_put_lf(TextConsole *s)
             c++;
         }
         if (s == active_console && s->y_displayed == s->y_base) {
-            vga_bitblt(s->ds, 0, FONT_HEIGHT, 0, 0, 
-                       s->width * FONT_WIDTH, 
+            vga_bitblt(s->ds, 0, FONT_HEIGHT, 0, 0,
+                       s->width * FONT_WIDTH,
                        (s->height - 1) * FONT_HEIGHT);
             vga_fill_rect(s->ds, 0, (s->height - 1) * FONT_HEIGHT,
-                          s->width * FONT_WIDTH, FONT_HEIGHT, 
+                          s->width * FONT_WIDTH, FONT_HEIGHT,
                           color_table[0][s->t_attrib_default.bgcol]);
-            dpy_update(s->ds, 0, 0, 
+            dpy_update(s->ds, 0, 0,
                        s->width * FONT_WIDTH, s->height * FONT_HEIGHT);
         }
     }
@@ -781,7 +781,7 @@ static void console_putchar(TextConsole *s, int ch)
             console_put_lf(s);
             break;
         case '\b':  /* backspace */
-            if (s->x > 0) 
+            if (s->x > 0)
                 s->x--;
             break;
         case '\t':  /* tabspace */
@@ -832,7 +832,7 @@ static void console_putchar(TextConsole *s, int ch)
     case TTY_STATE_CSI: /* handle escape sequence parameters */
         if (ch >= '0' && ch <= '9') {
             if (s->nb_esc_params < MAX_ESC_PARAMS) {
-                s->esc_params[s->nb_esc_params] = 
+                s->esc_params[s->nb_esc_params] =
                     s->esc_params[s->nb_esc_params] * 10 + ch - '0';
             }
         } else {
@@ -1047,7 +1047,7 @@ static void kbd_send_chars(void *opaque)
     TextConsole *s = opaque;
     int len;
     uint8_t buf[16];
-    
+   
     len = qemu_chr_can_read(s->chr);
     if (len > s->out_fifo.count)
         len = s->out_fifo.count;
@@ -1192,12 +1192,12 @@ CharDriverState *text_console_init(DisplayState *ds, const char *p)
     s->out_fifo.buf = s->out_fifo_buf;
     s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
     s->kbd_timer = qemu_new_timer(rt_clock, kbd_send_chars, s);
-    
+   
     if (!color_inited) {
         color_inited = 1;
         for(j = 0; j < 2; j++) {
             for(i = 0; i < 8; i++) {
-                color_table[j][i] = col_expand(s->ds, 
+                color_table[j][i] = col_expand(s->ds,
                         vga_get_color(s->ds, color_table_rgb[j][i]));
             }
         }
 /*
  * defines common to all virtual CPUs
- * 
+ *
  *  Copyright (c) 2003 Fabrice Bellard
  *
  * This library is free software; you can redistribute it and/or
@@ -24,16 +24,16 @@
 #define WORDS_ALIGNED
 #endif
-/* some important defines: 
- * 
+/* some important defines:
+ *
  * WORDS_ALIGNED : if defined, the host cpu can only make word aligned
  * memory accesses.
- * 
+ *
  * WORDS_BIGENDIAN : if defined, the host cpu is big endian and
  * otherwise little endian.
- * 
+ *
  * (TARGET_WORDS_ALIGNED : same for target cpu (not supported yet))
- * 
+ *
  * TARGET_WORDS_BIGENDIAN : same for target cpu
  */
@@ -147,7 +147,7 @@ typedef union {
  * type is:
  * (empty): integer access
  *   f    : float access
- * 
+ *
  * sign is:
  * (empty): for floats or 32 bit size
  *   u    : unsigned
@@ -158,7 +158,7 @@ typedef union {
  *   w: 16 bits
  *   l: 32 bits
  *   q: 64 bits
- * 
+ *
  * endian is:
  * (empty): target cpu endianness or 8 bit access
  *   r    : reversed target cpu endianness (not implemented yet)
@@ -621,7 +621,7 @@ static inline void stfq_be_p(void *ptr, float64 v)
 #define stfq_raw(p, v) stfq_p(saddr((p)), v)
-#if defined(CONFIG_USER_ONLY) 
+#if defined(CONFIG_USER_ONLY)
 /* if user mode, no other memory access functions */
 #define ldub(p) ldub_raw(p)
@@ -685,7 +685,7 @@ extern unsigned long qemu_host_page_mask;
 #define PAGE_VALID     0x0008
 /* original state of the write flag (used when tracking self-modifying
    code */
-#define PAGE_WRITE_ORG 0x0010 
+#define PAGE_WRITE_ORG 0x0010
 void page_dump(FILE *f);
 int page_get_flags(target_ulong address);
@@ -694,7 +694,7 @@ void page_unprotect_range(target_ulong data, target_ulong data_size);
 CPUState *cpu_copy(CPUState *env);
-void cpu_dump_state(CPUState *env, FILE *f, 
+void cpu_dump_state(CPUState *env, FILE *f,
                     int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
                     int flags);
 void cpu_dump_statistics (CPUState *env, FILE *f,
@@ -732,7 +732,7 @@ void cpu_reset(CPUState *s);
    if no page found. */
 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr);
-#define CPU_LOG_TB_OUT_ASM (1 << 0) 
+#define CPU_LOG_TB_OUT_ASM (1 << 0)
 #define CPU_LOG_TB_IN_ASM  (1 << 1)
 #define CPU_LOG_TB_OP      (1 << 2)
 #define CPU_LOG_TB_OP_OPT  (1 << 3)
@@ -793,7 +793,7 @@ extern uint8_t *phys_ram_dirty;
 typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
 typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
-void cpu_register_physical_memory(target_phys_addr_t start_addr, 
+void cpu_register_physical_memory(target_phys_addr_t start_addr,
                                   unsigned long size,
                                   unsigned long phys_offset);
 uint32_t cpu_get_physical_page_desc(target_phys_addr_t addr);
@@ -808,12 +808,12 @@ CPUReadMemoryFunc **cpu_get_io_memory_read(int io_index);
 void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
                             int len, int is_write);
-static inline void cpu_physical_memory_read(target_phys_addr_t addr, 
+static inline void cpu_physical_memory_read(target_phys_addr_t addr,
                                             uint8_t *buf, int len)
 {
     cpu_physical_memory_rw(addr, buf, len, 0);
 }
-static inline void cpu_physical_memory_write(target_phys_addr_t addr, 
+static inline void cpu_physical_memory_write(target_phys_addr_t addr,
                                              const uint8_t *buf, int len)
 {
     cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
@@ -829,9 +829,9 @@ void stw_phys(target_phys_addr_t addr, uint32_t val);
 void stl_phys(target_phys_addr_t addr, uint32_t val);
 void stq_phys(target_phys_addr_t addr, uint64_t val);
-void cpu_physical_memory_write_rom(target_phys_addr_t addr, 
+void cpu_physical_memory_write_rom(target_phys_addr_t addr,
                                    const uint8_t *buf, int len);
-int cpu_memory_rw_debug(CPUState *env, target_ulong addr, 
+int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
                         uint8_t *buf, int len, int is_write);
 #define VGA_DIRTY_FLAG  0x01
@@ -843,7 +843,7 @@ static inline int cpu_physical_memory_is_dirty(ram_addr_t addr)
     return phys_ram_dirty[addr >> TARGET_PAGE_BITS] == 0xff;
 }
-static inline int cpu_physical_memory_get_dirty(ram_addr_t addr, 
+static inline int cpu_physical_memory_get_dirty(ram_addr_t addr,
                                                 int dirty_flags)
 {
     return phys_ram_dirty[addr >> TARGET_PAGE_BITS] & dirty_flags;
@@ -866,14 +866,14 @@ void dump_exec_info(FILE *f,
 #if defined(__powerpc__)
-static inline uint32_t get_tbl(void) 
+static inline uint32_t get_tbl(void)
 {
     uint32_t tbl;
     asm volatile("mftb %0" : "=r" (tbl));
     return tbl;
 }
-static inline uint32_t get_tbu(void) 
+static inline uint32_t get_tbu(void)
 {
 	uint32_t tbl;
 	asm volatile("mftbu %0" : "=r" (tbl));
 /*
  * common defines for all CPUs
- * 
+ *
  * Copyright (c) 2003 Fabrice Bellard
  *
  * This library is free software; you can redistribute it and/or
@@ -29,7 +29,7 @@
 #error TARGET_LONG_BITS must be defined before including this header
 #endif
-#ifndef TARGET_PHYS_ADDR_BITS 
+#ifndef TARGET_PHYS_ADDR_BITS
 #if TARGET_LONG_BITS >= HOST_LONG_BITS
 #define TARGET_PHYS_ADDR_BITS TARGET_LONG_BITS
 #else
@@ -97,17 +97,17 @@ typedef unsigned long ram_addr_t;
 #define CPU_TLB_SIZE (1 << CPU_TLB_BITS)
 typedef struct CPUTLBEntry {
-    /* bit 31 to TARGET_PAGE_BITS : virtual address 
+    /* bit 31 to TARGET_PAGE_BITS : virtual address
        bit TARGET_PAGE_BITS-1..IO_MEM_SHIFT : if non zero, memory io
                                               zone number
        bit 3                      : indicates that the entry is invalid
        bit 2..0                   : zero
     */
-    target_ulong addr_read; 
-    target_ulong addr_write; 
-    target_ulong addr_code; 
+    target_ulong addr_read;
+    target_ulong addr_write;
+    target_ulong addr_code;
     /* addend to virtual address to get physical address */
-    target_phys_addr_t addend; 
+    target_phys_addr_t addend;
 } CPUTLBEntry;
 /* Alpha has 4 different running levels */