removed access_type hack

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1095 c046a42c-6fe2-441c-8c8c-71466251a162

removed access_type hack
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1095 c046a42c-6fe2-441c-8c8c-71466251a162
bellard
1 parent 32ff25bf
Showing 9 changed files with 89 additions and 86 deletions
exec-all.h
exec.c
softmmu_template.h
target-i386/helper2.c
target-ppc/helper.c
target-ppc/translate.c
target-sparc/cpu.h
target-sparc/helper.c
target-sparc/translate.c
@@ -592,13 +592,7 @@ static inline target_ulong get_phys_addr_code(CPUState *env, target_ulong addr)
 #endif
     if (__builtin_expect(env->tlb_read[is_user][index].address != 
                          (addr & TARGET_PAGE_MASK), 0)) {
-#if defined (TARGET_PPC)
-	env->access_type = ACCESS_CODE;
-	ldub_code((void *)addr);
-	env->access_type = ACCESS_INT;
-#else
         ldub_code((void *)addr);
-#endif
     }
     return addr + env->tlb_read[is_user][index].addend - (unsigned long)phys_ram_base;
 }
@@ -2115,6 +2115,7 @@ int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
 #define MMUSUFFIX _cmmu
 #define GETPC() NULL
 #define env cpu_single_env
+#define SOFTMMU_CODE_ACCESS
 #define SHIFT 0
 #include "softmmu_template.h"
@@ -39,14 +39,15 @@
 #error unsupported data size
 #endif
+#ifdef SOFTMMU_CODE_ACCESS
+#define READ_ACCESS_TYPE 2
+#else
+#define READ_ACCESS_TYPE 0
+#endif
+
 static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(unsigned long addr, 
                                                         int is_user,
                                                         void *retaddr);
-static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(unsigned long addr, 
-                                                   DATA_TYPE val, 
-                                                   int is_user,
-                                                   void *retaddr);
-
 static inline DATA_TYPE glue(io_read, SUFFIX)(unsigned long physaddr, 
                                               unsigned long tlb_addr)
 {
@@ -68,29 +69,6 @@ static inline DATA_TYPE glue(io_read, SUFFIX)(unsigned long physaddr,
     return res;
 }
-static inline void glue(io_write, SUFFIX)(unsigned long physaddr, 
-                                          DATA_TYPE val,
-                                          unsigned long tlb_addr,
-                                          void *retaddr)
-{
-    int index;
-
-    index = (tlb_addr >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
-    env->mem_write_vaddr = tlb_addr;
-    env->mem_write_pc = (unsigned long)retaddr;
-#if SHIFT <= 2
-    io_mem_write[index][SHIFT](io_mem_opaque[index], physaddr, val);
-#else
-#ifdef TARGET_WORDS_BIGENDIAN
-    io_mem_write[index][2](io_mem_opaque[index], physaddr, val >> 32);
-    io_mem_write[index][2](io_mem_opaque[index], physaddr + 4, val);
-#else
-    io_mem_write[index][2](io_mem_opaque[index], physaddr, val);
-    io_mem_write[index][2](io_mem_opaque[index], physaddr + 4, val >> 32);
-#endif
-#endif /* SHIFT > 2 */
-}
-
 /* handle all cases except unaligned access which span two pages */
 DATA_TYPE REGPARM(1) glue(glue(__ld, SUFFIX), MMUSUFFIX)(unsigned long addr,
                                                          int is_user)
@@ -125,7 +103,7 @@ DATA_TYPE REGPARM(1) glue(glue(__ld, SUFFIX), MMUSUFFIX)(unsigned long addr,
     } else {
         /* the page is not in the TLB : fill it */
         retaddr = GETPC();
-        tlb_fill(addr, 0, is_user, retaddr);
+        tlb_fill(addr, READ_ACCESS_TYPE, is_user, retaddr);
         goto redo;
     }
     return res;
@@ -172,12 +150,41 @@ static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(unsigned long addr,
         }
     } else {
         /* the page is not in the TLB : fill it */
-        tlb_fill(addr, 0, is_user, retaddr);
+        tlb_fill(addr, READ_ACCESS_TYPE, is_user, retaddr);
         goto redo;
     }
     return res;
 }
+#ifndef SOFTMMU_CODE_ACCESS
+
+static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(unsigned long addr, 
+                                                   DATA_TYPE val, 
+                                                   int is_user,
+                                                   void *retaddr);
+
+static inline void glue(io_write, SUFFIX)(unsigned long physaddr, 
+                                          DATA_TYPE val,
+                                          unsigned long tlb_addr,
+                                          void *retaddr)
+{
+    int index;
+
+    index = (tlb_addr >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
+    env->mem_write_vaddr = tlb_addr;
+    env->mem_write_pc = (unsigned long)retaddr;
+#if SHIFT <= 2
+    io_mem_write[index][SHIFT](io_mem_opaque[index], physaddr, val);
+#else
+#ifdef TARGET_WORDS_BIGENDIAN
+    io_mem_write[index][2](io_mem_opaque[index], physaddr, val >> 32);
+    io_mem_write[index][2](io_mem_opaque[index], physaddr + 4, val);
+#else
+    io_mem_write[index][2](io_mem_opaque[index], physaddr, val);
+    io_mem_write[index][2](io_mem_opaque[index], physaddr + 4, val >> 32);
+#endif
+#endif /* SHIFT > 2 */
+}
 void REGPARM(2) glue(glue(__st, SUFFIX), MMUSUFFIX)(unsigned long addr, 
                                                     DATA_TYPE val,
@@ -257,6 +264,9 @@ static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(unsigned long addr,
     }
 }
+#endif /* !defined(SOFTMMU_CODE_ACCESS) */
+
+#undef READ_ACCESS_TYPE
 #undef SHIFT
 #undef DATA_TYPE
 #undef SUFFIX
@@ -331,7 +331,8 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, uint32_t addr,
     printf("MMU fault: addr=0x%08x w=%d u=%d eip=%08x\n", 
            addr, is_write, is_user, env->eip);
 #endif
-
+    is_write &= 1;
+    
     if (env->user_mode_only) {
         /* user mode only emulation */
         error_code = 0;
@@ -432,13 +432,13 @@ void tlb_fill(unsigned long addr, int is_write, int is_user, void *retaddr)
        generated code */
     saved_env = env;
     env = cpu_single_env;
+#if 0
     {
         unsigned long tlb_addrr, tlb_addrw;
         int index;
         index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
         tlb_addrr = env->tlb_read[is_user][index].address;
         tlb_addrw = env->tlb_write[is_user][index].address;
-#if 0
         if (loglevel) {
             fprintf(logfile,
                     "%s 1 %p %p idx=%d addr=0x%08lx tbl_addr=0x%08lx 0x%08lx "
@@ -447,8 +447,8 @@ void tlb_fill(unsigned long addr, int is_write, int is_user, void *retaddr)
                tlb_addrr, tlb_addrw, addr & TARGET_PAGE_MASK,
                tlb_addrr & (TARGET_PAGE_MASK | TLB_INVALID_MASK));
         }
-#endif
     }
+#endif
     ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, is_user, 1);
     if (ret) {
         if (retaddr) {
@@ -463,20 +463,20 @@ void tlb_fill(unsigned long addr, int is_write, int is_user, void *retaddr)
         }
         do_raise_exception_err(env->exception_index, env->error_code);
     }
+#if 0
     {
         unsigned long tlb_addrr, tlb_addrw;
         int index;
         index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
         tlb_addrr = env->tlb_read[is_user][index].address;
         tlb_addrw = env->tlb_write[is_user][index].address;
-#if 0
         printf("%s 2 %p %p idx=%d addr=0x%08lx tbl_addr=0x%08lx 0x%08lx "
                "(0x%08lx 0x%08lx)\n", __func__, env,
                &env->tlb_read[is_user][index], index, addr,
                tlb_addrr, tlb_addrw, addr & TARGET_PAGE_MASK,
                tlb_addrr & (TARGET_PAGE_MASK | TLB_INVALID_MASK));
-#endif
     }
+#endif
     env = saved_env;
 }
@@ -496,18 +496,22 @@ int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
     int access_type;
     int ret = 0;
-//    printf("%s 0\n", __func__);
-    access_type = env->access_type;
+    if (rw == 2) {
+        /* code access */
+        rw = 0;
+        access_type = ACCESS_CODE;
+    } else {
+        /* data access */
+        /* XXX: put correct access by using cpu_restore_state()
+           correctly */
+        access_type = ACCESS_INT;
+        //        access_type = env->access_type;
+    }
     if (env->user_mode_only) {
         /* user mode only emulation */
         ret = -2;
         goto do_fault;
     }
-    /* NASTY BUG workaround */
-    if (access_type == ACCESS_CODE && rw) {
-	printf("%s: ERROR WRITE CODE ACCESS\n", __func__);
-	access_type = ACCESS_INT;
-    }
     ret = get_physical_address(env, &physical, &prot,
                                address, rw, access_type);
     if (ret == 0) {
@@ -590,7 +594,6 @@ int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
         env->error_code = error_code;
         ret = 1;
     }
-
     return ret;
 }
@@ -671,11 +674,15 @@ void do_interrupt (CPUState *env)
         if (loglevel > 0) {
             fprintf(logfile, "Raise exception at 0x%08x => 0x%08x (%02x)\n",
                     env->nip, excp << 8, env->error_code);
-    }
+        }
 	if (loglevel > 0)
 	    cpu_ppc_dump_state(env, logfile, 0);
     }
 #endif
+    if (loglevel & CPU_LOG_INT) {
+        fprintf(logfile, "Raise exception at 0x%08x => 0x%08x (%02x)\n",
+                env->nip, excp << 8, env->error_code);
+    }
     /* Generate informations in save/restore registers */
     switch (excp) {
     case EXCP_OFCALL:
@@ -824,19 +831,29 @@ void do_interrupt (CPUState *env)
         }
         goto store_next;
     case EXCP_SYSCALL:
-#if defined (DEBUG_EXCEPTIONS)
-	if (msr_pr) {
-	    if (loglevel) {
-		fprintf(logfile, "syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n",
-			env->gpr[0], env->gpr[3], env->gpr[4],
-			env->gpr[5], env->gpr[6]);
-	    } else {
-		printf("syscall %d from 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
-		       env->gpr[0], env->nip, env->gpr[3], env->gpr[4],
-		       env->gpr[5], env->gpr[6]);
-	    }
-	}
-#endif
+        if (loglevel & CPU_LOG_INT) {
+            fprintf(logfile, "syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n",
+                    env->gpr[0], env->gpr[3], env->gpr[4],
+                    env->gpr[5], env->gpr[6]);
+            if (env->gpr[0] == 4 && env->gpr[3] == 1) {
+                int len, addr, i;
+                uint8_t c;
+
+                fprintf(logfile, "write: ");
+                addr = env->gpr[4];
+                len = env->gpr[5];
+                if (len > 64)
+                    len = 64;
+                for(i = 0; i < len; i++) {
+                    c = 0;
+                    cpu_memory_rw_debug(env, addr + i, &c, 1, 0);
+                    if (c < 32 || c > 126)
+                        c = '.';
+                    fprintf(logfile, "%c", c);
+                }
+                fprintf(logfile, "\n");
+            }
+        }
         goto store_next;
     case EXCP_TRACE:
         goto store_next;
@@ -3002,7 +3002,6 @@ CPUPPCState *cpu_ppc_init(void)
 #else
     env->nip = 0xFFFFFFFC;
 #endif
-    env->access_type = ACCESS_INT;
     cpu_single_env = env;
     return env;
 }
@@ -3050,12 +3049,9 @@ int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
     /* Single step trace mode */
     msr_se = 1;
 #endif
-    env->access_type = ACCESS_CODE;
     /* Set env in case of segfault during code fetch */
     while (ctx.exception == EXCP_NONE && gen_opc_ptr < gen_opc_end) {
         if (search_pc) {
-            if (loglevel > 0)
-                fprintf(logfile, "Search PC...\n");
             j = gen_opc_ptr - gen_opc_buf;
             if (lj < j) {
                 lj++;
@@ -3187,8 +3183,6 @@ int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
         fprintf(logfile, "\n");
     }
 #endif
-    env->access_type = ACCESS_INT;
-
     return 0;
 }
@@ -86,10 +86,6 @@
 #define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT)
 #define PG_CACHE_MASK    (1 << PG_CACHE_BIT)
-#define ACCESS_DATA	0
-#define ACCESS_CODE	1
-#define ACCESS_MMU	2
-
 #define NWINDOWS  32
 typedef struct CPUSPARCState {
@@ -131,7 +127,6 @@ typedef struct CPUSPARCState {
     CPUTLBEntry tlb_read[2][CPU_TLB_SIZE];
     CPUTLBEntry tlb_write[2][CPU_TLB_SIZE];
     int error_code;
-    int access_type;
     /* MMU regs */
     uint32_t mmuregs[16];
     /* temporary float registers */
@@ -132,13 +132,12 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
                               int is_user, int is_softmmu)
 {
     int exception = 0;
-    int access_type, access_perms = 0, access_index = 0;
+    int access_perms = 0, access_index = 0;
     uint8_t *pde_ptr;
     uint32_t pde, virt_addr;
     int error_code = 0, is_dirty, prot, ret = 0;
     unsigned long paddr, vaddr, page_offset;
-    access_type = env->access_type;
     if (env->user_mode_only) {
         /* user mode only emulation */
         ret = -2;
@@ -156,7 +155,6 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
     /* SPARC reference MMU table walk: Context table->L1->L2->PTE */
     /* Context base + context number */
     pde_ptr = phys_ram_base + (env->mmuregs[1] << 4) + (env->mmuregs[2] << 4);
-    env->access_type = ACCESS_MMU;
     pde = ldl_raw(pde_ptr);
     /* Ctx pde */
@@ -219,7 +217,7 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
     }
     /* update page modified and dirty bits */
-    is_dirty = rw && !(pde & PG_MODIFIED_MASK);
+    is_dirty = (rw & 1) && !(pde & PG_MODIFIED_MASK);
     if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
 	pde |= PG_ACCESSED_MASK;
 	if (is_dirty)
@@ -228,7 +226,7 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
     }
     /* check access */
-    access_index = (rw << 2) | ((access_type == ACCESS_CODE)? 2 : 0) | (is_user? 0 : 1);
+    access_index = ((rw & 1) << 2) | (rw & 2) | (is_user? 0 : 1);
     access_perms = (pde & PTE_ACCESS_MASK) >> PTE_ACCESS_SHIFT;
     error_code = access_table[access_index][access_perms];
     if (error_code)
@@ -249,14 +247,12 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
     paddr = ((pde & PTE_ADDR_MASK) << 4) + page_offset;
  do_mapping:
-    env->access_type = access_type;
     vaddr = virt_addr + ((address & TARGET_PAGE_MASK) & (TARGET_PAGE_SIZE - 1));
     ret = tlb_set_page(env, vaddr, paddr, prot, is_user, is_softmmu);
     return ret;
  do_fault:
-    env->access_type = access_type;
     if (env->mmuregs[3]) /* Fault status register */
 	env->mmuregs[3] = 1; /* overflow (not read before another fault) */
     env->mmuregs[3] |= (access_index << 5) | (error_code << 2) | 2;
@@ -1278,8 +1278,6 @@ static inline int gen_intermediate_code_internal(TranslationBlock * tb,
     gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
     gen_opparam_ptr = gen_opparam_buf;
-    env->access_type = ACCESS_CODE;
-
     do {
         if (env->nb_breakpoints > 0) {
             for(j = 0; j < env->nb_breakpoints; j++) {
@@ -1352,8 +1350,6 @@ static inline int gen_intermediate_code_internal(TranslationBlock * tb,
         }
     }
 #endif
-
-    env->access_type = ACCESS_DATA;
     return 0;
 }
@@ -1379,7 +1375,6 @@ CPUSPARCState *cpu_sparc_init(void)
     env->cwp = 0;
     env->wim = 1;
     env->regwptr = env->regbase + (env->cwp * 16);
-    env->access_type = ACCESS_DATA;
 #if defined(CONFIG_USER_ONLY)
     env->user_mode_only = 1;
 #else