From fc5f06fac6fb8ce469ea173370f2cd398f1d9f9a Mon Sep 17 00:00:00 2001 From: Gleb Natapov Date: Thu, 14 Oct 2010 11:22:56 +0200 Subject: [PATCH] KVM: Send async PF when guest is not in userspace too. If guest indicates that it can handle async pf in kernel mode too send it, but only if interrupts are enabled. Acked-by: Rik van Riel Signed-off-by: Gleb Natapov Signed-off-by: Marcelo Tosatti --- arch/x86/kvm/x86.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index fff70b50725..c0bd2a2b3c0 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6263,7 +6263,8 @@ void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, kvm_add_async_pf_gfn(vcpu, work->arch.gfn); if (!(vcpu->arch.apf.msr_val & KVM_ASYNC_PF_ENABLED) || - kvm_x86_ops->get_cpl(vcpu) == 0) + (vcpu->arch.apf.send_user_only && + kvm_x86_ops->get_cpl(vcpu) == 0)) kvm_make_request(KVM_REQ_APF_HALT, vcpu); else if (!apf_put_user(vcpu, KVM_PV_REASON_PAGE_NOT_PRESENT)) { vcpu->arch.fault.error_code = 0; -- 2.20.1