On 30/11/18 23:00, Jim Mattson wrote:
> Ping.
> On Tue, Oct 30, 2018 at 12:21 PM Jim Mattson <jmattson@xxxxxxxxxx> wrote:
>>
>> If userspace has provided a different value for this MSR (e.g with the
>> turbo bits set), the userspace-provided value should survive a vCPU
>> reset. For backwards compatibility, MSR_PLATFORM_INFO is initialized
>> in kvm_arch_vcpu_setup.
>>
>> Signed-off-by: Jim Mattson <jmattson@xxxxxxxxxx>
>> Reviewed-by: Drew Schmitt <dasch@xxxxxxxxxx>
>> Cc: Abhiroop Dabral <adabral@xxxxxxxxxxxxxxxxxxxx>
>> ---
>> arch/x86/kvm/x86.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
>> index 66d66d77caee..6ab3149bf9dc 100644
>> --- a/arch/x86/kvm/x86.c
>> +++ b/arch/x86/kvm/x86.c
>> @@ -8617,6 +8617,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
>>
>> int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
>> {
>> + vcpu->arch.msr_platform_info = MSR_PLATFORM_INFO_CPUID_FAULT;
>> kvm_vcpu_mtrr_init(vcpu);
>> vcpu_load(vcpu);
>> kvm_vcpu_reset(vcpu, false);
>> @@ -8719,7 +8720,6 @@ void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
>> kvm_pmu_reset(vcpu);
>> vcpu->arch.smbase = 0x30000;
>>
>> - vcpu->arch.msr_platform_info = MSR_PLATFORM_INFO_CPUID_FAULT;
>> vcpu->arch.msr_misc_features_enables = 0;
>>
>> vcpu->arch.xcr0 = XFEATURE_MASK_FP;
>> --
>> 2.19.1.568.g152ad8e336-goog
>>
Queued, thanks.
Paolo
