From: Avi Kivity <avi@qumranet.com>
Date: Thu, 3 Jul 2008 12:17:01 +0000 (+0300)
Subject: KVM: Add a pending interrupt queue
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=937a7eaef9f08342958d17055a350982b7bd92cb;p=linux-beck.git

KVM: Add a pending interrupt queue

Similar to the exception queue, this hold interrupts that have been
accepted by the virtual processor core but not yet injected.

Not yet used.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---

diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index c666649c4bb2..6a4be78a7384 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -8,4 +8,15 @@ static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
 	vcpu->arch.exception.pending = false;
 }
 
+static inline void kvm_queue_interrupt(struct kvm_vcpu *vcpu, u8 vector)
+{
+	vcpu->arch.interrupt.pending = true;
+	vcpu->arch.interrupt.nr = vector;
+}
+
+static inline void kvm_clear_interrupt_queue(struct kvm_vcpu *vcpu)
+{
+	vcpu->arch.interrupt.pending = false;
+}
+
 #endif
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index 7cf69fd1dcfe..65c6a0e5b739 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -275,6 +275,11 @@ struct kvm_vcpu_arch {
 		u32 error_code;
 	} exception;
 
+	struct kvm_queued_interrupt {
+		bool pending;
+		u8 nr;
+	} interrupt;
+
 	struct {
 		int active;
 		u8 save_iopl;