On 07/05/20 00:26, Sean Christopherson wrote:
>> +/* Load the guest pkru state */
>> +if (static_cpu_has(X86_FEATURE_PKU) &&
>> +kvm_read_cr4_bits(vcpu, X86_CR4_PKE) &&
>> +vcpu->arch.pkru != svm->host_pkru)
>> +__write_pkru(vcpu->arch.pkru);
> This and the resto
On 5/6/20 3:02 PM, Babu Moger wrote:
> --- a/arch/x86/kvm/svm/svm.c
> +++ b/arch/x86/kvm/svm/svm.c
> @@ -818,6 +818,10 @@ static __init void svm_set_cpu_caps(void)
> if (boot_cpu_has(X86_FEATURE_LS_CFG_SSBD) ||
> boot_cpu_has(X86_FEATURE_AMD_SSBD))
> kvm_cpu_cap_set(X8
On Wed, May 06, 2020 at 05:02:21PM -0500, Babu Moger wrote:
> static __init int svm_hardware_setup(void)
> @@ -1300,6 +1304,8 @@ static void svm_vcpu_load(struct kvm_vcpu *vcpu, int
> cpu)
> indirect_branch_prediction_barrier();
> }
> avic_vcpu_load(vcpu, cpu);
> +
> +
The Memory Protection Key (MPK) feature provides a way for applications
to impose page-based data access protections (read/write, read-only or
no access), without requiring modification of page tables and subsequent
TLB invalidations when the application changes protection domains.
This feature is
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