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SubjectRe: [RFC 5/7] KVM: MMU: Add support for PKS emulation
Date
On 07/08/20 10:48, Chenyi Qiang wrote:
>
> if (pte_access & PT_USER_MASK)
> pkr_bits = (vcpu->arch.pkru >> (pte_pkey * 2)) & 3;
> + else if (!kvm_get_msr(vcpu, MSR_IA32_PKRS, &pkrs))
> + pkr_bits = (pkrs >> (pte_pkey * 2)) & 3;

You should be able to always use vcpu->arch.pkrs here. So

pkr = pte_access & PT_USER_MASK ? vcpu->arch.pkru : vcpu->arch.pkrs;
pkr_bits = (pkr >> pte_pkey * 2) & 3;

Paolo

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