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Merge pull request #764 from nerd73/master

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Make writing to MSR 0x8B cause a GPF on Intel Pentium/Pentium MMX
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OBattler
2020-05-18 07:03:17 +02:00
committed by GitHub
parent 319d55f0ea eebdcf85cb
commit 7f0aa89f38
1 changed files with 4 additions and 0 deletions
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4
src/cpu_common/cpu.c
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@@ -3149,6 +3149,10 @@ void cpu_WRMSR()
case 0x10: case 0x10:
tsc = EAX | ((uint64_t)EDX << 32); tsc = EAX | ((uint64_t)EDX << 32);
break; break;
case 0x8B:
cpu_log("WRMSR: Invalid MSR: 0x8B/n"); /*Needed for Vista to correctly break on Pentium*/
x86gpf(NULL, 0);
break;
} }
break; break;
#if defined(DEV_BRANCH) && defined(USE_CYRIX_6X86) #if defined(DEV_BRANCH) && defined(USE_CYRIX_6X86)