gwj / at91sam9263 · Commits

Commit 1b2e93c175a947653326efce9a6f36791d458691

Authored by blueswir1
1 parent b3a23197

Separate fault for code access to unassigned memory 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2876 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 2 changed files with 10 additions and 2 deletions
target-sparc/cpu.h
  View file @1b2e93c
... ... @@ -40,6 +40,7 @@
40 40 #define TT_DFAULT 0x09
41 41 #define TT_TOVF 0x0a
42 42 #define TT_EXTINT 0x10
  43 +#define TT_CODE_ACCESS 0x21
43 44 #define TT_DATA_ACCESS 0x29
44 45 #define TT_DIV_ZERO 0x2a
45 46 #define TT_NCP_INSN 0x24
... ... @@ -47,6 +48,7 @@
47 48 #else
48 49 #define TT_TFAULT 0x08
49 50 #define TT_TMISS 0x09
  51 +#define TT_CODE_ACCESS 0x0a
50 52 #define TT_ILL_INSN 0x10
51 53 #define TT_PRIV_INSN 0x11
52 54 #define TT_NFPU_INSN 0x20
... ...
target-sparc/op_helper.c
  View file @1b2e93c
... ... @@ -1111,7 +1111,10 @@ void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
1111 1111 printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx
1112 1112 "\n", addr, env->pc);
1113 1113 #endif
1114   - raise_exception(TT_DATA_ACCESS);
  1114 + if (is_exec)
  1115 + raise_exception(TT_CODE_ACCESS);
  1116 + else
  1117 + raise_exception(TT_DATA_ACCESS);
1115 1118 }
1116 1119 env = saved_env;
1117 1120 }
... ... @@ -1130,7 +1133,10 @@ void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
1130 1133 addr, env->pc);
1131 1134 env = saved_env;
1132 1135 #endif
1133   - raise_exception(TT_DATA_ACCESS);
  1136 + if (is_exec)
  1137 + raise_exception(TT_CODE_ACCESS);
  1138 + else
  1139 + raise_exception(TT_DATA_ACCESS);
1134 1140 }
1135 1141 #endif
1136 1142  
... ...