gwj / at91sam9263 · Commits

Commit 12e26b75d49adbd69ce5f00659f5c51d19d45304

Authored by bellard
1 parent 1b9d9ebb

lahf/sahf cpuid test 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4523 c046a42c-6fe2-441c-8c8c-71466251a162
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Showing 2 changed files with 6 additions and 9 deletions
target-i386/TODO
  View file @12e26b7
1 1 Correctness issues:
2 2  
3 3 - some eflags manipulation incorrectly reset the bit 0x2.
4   -- rework eflags optimization (will be a consequence of TCG port)
5 4 - SVM: rework the implementation: simplify code, move most intercept
6 5 tests as dynamic, correct segment access, verify exception safety,
7 6 cpu save/restore, SMM save/restore.
8   -- x86_64: fxsave/fxrestore intel/amd differences
9 7 - x86_64: lcall/ljmp intel/amd differences ?
10   -- x86_64: cmpxchgl intel/amd differences ?
11   -- x86_64: cmovl intel/amd differences ?
12   -- cmpxchg16b + cmpxchg8b cpuid test
13   -- x86: monitor invalid
14 8 - better code fetch (different exception handling + CS.limit support)
15 9 - user/kernel PUSHL/POPL in helper.c
16 10 - add missing cpuid tests
... ... @@ -27,11 +21,12 @@ Correctness issues:
27 21  
28 22 Optimizations/Features:
29 23  
30   -- finish TCG port
31 24 - add SVM nested paging support
32 25 - add VMX support
33 26 - add AVX support
34 27 - add SSE5 support
  28 +- fxsave/fxrstor AMD extensions
  29 +- improve monitor/mwait support
35 30 - faster EFLAGS update: consider SZAP, C, O can be updated separately
36 31 with a bit field in CC_OP and more state variables.
37 32 - evaluate x87 stack pointer statically
... ...
target-i386/translate.c
  View file @12e26b7
... ... @@ -103,6 +103,7 @@ typedef struct DisasContext {
103 103 int cpuid_features;
104 104 int cpuid_ext_features;
105 105 int cpuid_ext2_features;
  106 + int cpuid_ext3_features;
106 107 } DisasContext;
107 108  
108 109 static void gen_eob(DisasContext *s);
... ... @@ -5829,7 +5830,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
5829 5830 }
5830 5831 break;
5831 5832 case 0x9e: /* sahf */
5832   - if (CODE64(s))
  5833 + if (CODE64(s) && !(s->cpuid_ext3_features & CPUID_EXT3_LAHF_LM))
5833 5834 goto illegal_op;
5834 5835 gen_op_mov_TN_reg(OT_BYTE, 0, R_AH);
5835 5836 if (s->cc_op != CC_OP_DYNAMIC)
... ... @@ -5841,7 +5842,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
5841 5842 s->cc_op = CC_OP_EFLAGS;
5842 5843 break;
5843 5844 case 0x9f: /* lahf */
5844   - if (CODE64(s))
  5845 + if (CODE64(s) && !(s->cpuid_ext3_features & CPUID_EXT3_LAHF_LM))
5845 5846 goto illegal_op;
5846 5847 if (s->cc_op != CC_OP_DYNAMIC)
5847 5848 gen_op_set_cc_op(s->cc_op);
... ... @@ -7058,6 +7059,7 @@ static inline int gen_intermediate_code_internal(CPUState *env,
7058 7059 dc->cpuid_features = env->cpuid_features;
7059 7060 dc->cpuid_ext_features = env->cpuid_ext_features;
7060 7061 dc->cpuid_ext2_features = env->cpuid_ext2_features;
  7062 + dc->cpuid_ext3_features = env->cpuid_ext3_features;
7061 7063 #ifdef TARGET_X86_64
7062 7064 dc->lma = (flags >> HF_LMA_SHIFT) & 1;
7063 7065 dc->code64 = (flags >> HF_CS64_SHIFT) & 1;
... ...