Explicitly mark the vmcs12 vAPIC and PI descriptor pages as dirty when delivering a nested posted interrupt instead of marking all vmcs12 pages as dirty. This will allow marking the APIC access page (and any future vmcs12 pages) as dirty in nested_mark_vmcs12_pages_dirty() without over- dirtying in the nested PI case. Manually marking the vAPIC and PID pages as dirty also makes the flow a bit more self-documenting, e.g. it's not obvious at first glance that vmx->nested.pi_desc is actually a host kernel mapping of a vmcs12 page. No functional change intended. Signed-off-by: Sean Christopherson --- arch/x86/kvm/vmx/nested.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index d4ef33578747..d0cf99903971 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -4027,7 +4027,8 @@ static int vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu) } } - nested_mark_vmcs12_pages_dirty(vcpu); + kvm_vcpu_map_mark_dirty(vcpu, &vmx->nested.virtual_apic_map); + kvm_vcpu_map_mark_dirty(vcpu, &vmx->nested.pi_desc_map); return 0; mmio_needed: -- 2.52.0.rc2.455.g230fcf2819-goog