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target/i386: Fix wrong count setting

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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: d19d6ffa07 ("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>
This commit is contained in:
Yang Zhong 2022-05-30 09:18:34 -04:00 committed by Paolo Bonzini
parent d8f3a60931
commit b0f3184e82
1 changed files with 1 additions and 1 deletions
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target/i386/cpu.c
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@ -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];