From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bandan Das Subject: [PATCH 2/3] KVM: nVMX: Ack and write vector info to intr_info if L1 asks us to Date: Wed, 19 Mar 2014 23:28:08 -0400 Message-ID: <1395286089-5406-3-git-send-email-bsd@redhat.com> References: <1395286089-5406-1-git-send-email-bsd@redhat.com> Cc: Paolo Bonzini , Gleb Natapov , Jan Kiszka To: kvm@vger.kernel.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:3709 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752826AbaCTD2z (ORCPT ); Wed, 19 Mar 2014 23:28:55 -0400 In-Reply-To: <1395286089-5406-1-git-send-email-bsd@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Signed-off-by: Bandan Das --- arch/x86/kvm/irq.c | 1 + arch/x86/kvm/vmx.c | 17 +++++++++++++++++ 2 files changed, 18 insertions(+) diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c index 484bc87..bd0da43 100644 --- a/arch/x86/kvm/irq.c +++ b/arch/x86/kvm/irq.c @@ -113,6 +113,7 @@ int kvm_cpu_get_interrupt(struct kvm_vcpu *v) return kvm_get_apic_interrupt(v); /* APIC */ } +EXPORT_SYMBOL_GPL(kvm_cpu_get_interrupt); void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu) { diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 26c1d38..c707389 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -4491,6 +4491,16 @@ static bool nested_exit_on_intr(struct kvm_vcpu *vcpu) PIN_BASED_EXT_INTR_MASK; } +/* + * In nested virtualization, check if L1 has set + * VM_EXIT_ACK_INTR_ON_EXIT + */ +static bool nested_exit_intr_ack_set(struct kvm_vcpu *vcpu) +{ + return get_vmcs12(vcpu)->vm_exit_controls & + VM_EXIT_ACK_INTR_ON_EXIT; +} + static bool nested_exit_on_nmi(struct kvm_vcpu *vcpu) { return get_vmcs12(vcpu)->pin_based_vm_exec_control & @@ -8448,6 +8458,13 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason, prepare_vmcs12(vcpu, vmcs12, exit_reason, exit_intr_info, exit_qualification); + if ((exit_reason == EXIT_REASON_EXTERNAL_INTERRUPT) + && nested_exit_intr_ack_set(vcpu)) { + int irq = kvm_cpu_get_interrupt(vcpu); + vmcs12->vm_exit_intr_info = irq | + INTR_INFO_VALID_MASK | INTR_TYPE_EXT_INTR; + } + trace_kvm_nested_vmexit_inject(vmcs12->vm_exit_reason, vmcs12->exit_qualification, vmcs12->idt_vectoring_info_field, -- 1.8.3.1