From: Wanpeng Li <wanpeng.li@xxxxxxxxxxx> Intel FlexPriority maintains a "virtual TPR" register in memory(Virtual APIC Page), APIC-access Page contains host physical address of guest APIC page, Virtual APIC Page contains host physical address of the page stored LAPIC registers. However, commit dc651f440f5 (KVM: nVMX: get rid of nested_get_page()) sets the address of APIC-access Page to the vmcs field of Virtual APIC Page which breaks the FlexPriority. This patch fixes it by setting Virtual APIC Page to it related vmcs field. Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx> Cc: Radim Krčmář <rkrcmar@xxxxxxxxxx> Signed-off-by: Wanpeng Li <wanpeng.li@xxxxxxxxxxx> --- arch/x86/kvm/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index b22af24..a653005 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -9654,7 +9654,7 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu, kvm_release_page_dirty(vmx->nested.virtual_apic_page); vmx->nested.virtual_apic_page = NULL; } - page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->apic_access_addr); + page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->virtual_apic_page_addr); /* * If translation failed, VM entry will fail because -- 2.7.4
