lkml.org 
[lkml]   [2021]   [Jun]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 07/10] KVM: SVM: use vmcb01 in svm_refresh_apicv_exec_ctrl
From
Date
On 23/06/21 13:29, Maxim Levitsky wrote:
> AVIC is not supported for nesting but in some corner
> cases it is possible to have it still be enabled,
> after we entered nesting, and use vmcb02.
>
> Fix this by always using vmcb01 in svm_refresh_apicv_exec_ctrl

Please be more verbose about the corner case (and then the second
paragraph should not be necessary anymore).

Paolo

> Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
> ---
> arch/x86/kvm/svm/avic.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c
> index 1d01da64c333..a8ad78a2faa1 100644
> --- a/arch/x86/kvm/svm/avic.c
> +++ b/arch/x86/kvm/svm/avic.c
> @@ -646,7 +646,7 @@ static int svm_set_pi_irte_mode(struct kvm_vcpu *vcpu, bool activate)
> void svm_refresh_apicv_exec_ctrl(struct kvm_vcpu *vcpu)
> {
> struct vcpu_svm *svm = to_svm(vcpu);
> - struct vmcb *vmcb = svm->vmcb;
> + struct vmcb *vmcb = svm->vmcb01.ptr;
> bool activated = kvm_vcpu_apicv_active(vcpu);
>
> if (!enable_apicv)
>

\
 
 \ /
  Last update: 2021-06-23 23:55    [W:1.155 / U:0.836 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site