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| author | Yang Zhong <yang.zhong@intel.com> | 2022-05-30 09:18:34 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-06-06 09:26:53 +0200 |
| commit | b0f3184e82817b700ea81bc76ebc8d999de35278 (patch) | |
| tree | 52fb68b90cbe99c54de707bf290d7a23a55253e0 /target/i386 | |
| parent | d8f3a60931a700c327aa2ee10d0beaeea2cb97da (diff) | |
| download | qemu-b0f3184e82817b700ea81bc76ebc8d999de35278.zip qemu-b0f3184e82817b700ea81bc76ebc8d999de35278.tar.gz qemu-b0f3184e82817b700ea81bc76ebc8d999de35278.tar.bz2 | |
target/i386: Fix wrong count setting
The previous patch used wrong count setting with index value, which got wrong
value from CPUID(EAX=12,ECX=0):EAX. So the SGX1 instruction can't be exposed
to VM and the SGX decice can't work in VM.
Fixes: d19d6ffa0710 ("target/i386: introduce helper to access supported CPUID")
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Message-Id: <20220530131834.1222801-1-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386')
| -rw-r--r-- | target/i386/cpu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index bb6a5dd..9fdfec9 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -5559,7 +5559,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, * supports. Features can be further restricted by userspace, but not * made more permissive. */ - x86_cpu_get_supported_cpuid(0x12, index, eax, ebx, ecx, edx); + x86_cpu_get_supported_cpuid(0x12, count, eax, ebx, ecx, edx); if (count == 0) { *eax &= env->features[FEAT_SGX_12_0_EAX]; |