On Thu, 2009-10-01 at 19:16 -0300, Marcelo Tosatti wrote:
> It is possible that stale EPTP-tagged mappings are used, if a
> vcpu migrates to a different pcpu.
>
> Set KVM_REQ_TLB_FLUSH in vmx_vcpu_load, when switching pcpus, which
> will invalidate both VPID and EPT mappings on the next vm-entry.
>
> Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
>
> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
> index e86f1a6..97f4265 100644
> --- a/arch/x86/kvm/vmx.c
> +++ b/arch/x86/kvm/vmx.c
> @@ -708,7 +708,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
> if (vcpu->cpu != cpu) {
> vcpu_clear(vmx);
> kvm_migrate_timers(vcpu);
> - vpid_sync_vcpu_all(vmx);
> + set_bit(KVM_REQ_TLB_FLUSH, &vcpu->requests);
> local_irq_disable();
> list_add(&vmx->local_vcpus_link,
> &per_cpu(vcpus_on_cpu, cpu));
> --
This patch fixes my ept misconfig problem seen very so often while
installing sles11 guest.
thanks,
RP
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