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hv: cpuid: expose PCID related capabilities to VMs 

Pass-through PCID related capabilities to VMs:
- The support of PCID (CPUID.01H.ECX[17])
- The support of instruction INVPCID (CPUID.07H.EBX[10])

Tracked-On: #4296
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Binbin Wu 2019-12-23 13:35:39 +08:00 committed by wenlingz
parent 96331462b7
commit d330879ce5
1 changed files with 2 additions and 5 deletions
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7
hypervisor/arch/x86/guest/vcpuid.c
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@ -116,8 +116,8 @@ static void init_vcpuid_entry(uint32_t leaf, uint32_t subleaf,
case 0x07U:
if (subleaf == 0U) {
cpuid_subleaf(leaf, subleaf, &entry->eax, &entry->ebx, &entry->ecx, &entry->edx);
/* mask invpcid */
entry->ebx &= ~(CPUID_EBX_INVPCID | CPUID_EBX_PQM | CPUID_EBX_PQE);
entry->ebx &= ~(CPUID_EBX_PQM | CPUID_EBX_PQE);
/* mask SGX and SGX_LC */
entry->ebx &= ~CPUID_EBX_SGX;
@ -422,9 +422,6 @@ static void guest_cpuid_01h(struct acrn_vcpu *vcpu, uint32_t *eax, uint32_t *ebx
/* mask SDBG for silicon debug */
*ecx &= ~CPUID_ECX_SDBG;
/* mask pcid */
*ecx &= ~CPUID_ECX_PCID;
/*mask vmx to guest os */
*ecx &= ~CPUID_ECX_VMX;