[PATCH v2 2/8] KVM: x86: Rename interrupt.pending to interrupt.injected

From: Liran Alon <liran.alon@oracle.com>
To: pbonzini@redhat.com, rkrcmar@redhat.com, kvm@vger.kernel.org
Cc: jmattson@google.com, wanpeng.li@hotmail.com,
	idan.brown@oracle.com, Liran Alon <liran.alon@oracle.com>,
	Krish Sadhukhan <krish.sadhukhan@oracle.com>
Subject: [PATCH v2 2/8] KVM: x86: Rename interrupt.pending to interrupt.injected
Date: Tue, 21 Nov 2017 17:30:05 +0200	[thread overview]
Message-ID: <1511278211-12257-3-git-send-email-liran.alon@oracle.com> (raw)
In-Reply-To: <1511278211-12257-1-git-send-email-liran.alon@oracle.com>

For exceptions & NMIs events, KVM code use the following
coding convention:
*) "pending" represents an event that should be injected to guest at
some point but it's side-effects have not yet occurred.
*) "injected" represents an event that it's side-effects have already
occurred.

However, interrupts don't confirm to this coding convention.
All current code flows mark interrupt.pending when it's side-effects
have already taken place (For example, bit moved from LAPIC IRR to
ISR). Therefore, it makes sense to just rename
interrupt.pending to interrupt.injected.

This change follows logic of previous commit 664f8e26b00c ("KVM: X86:
Fix loss of exception which has not yet been injected") which changed
exception to follow this coding convention as well.

Signed-off-by: Liran Alon <liran.alon@oracle.com>
Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
---
 arch/x86/include/asm/kvm_host.h | 2 +-
 arch/x86/kvm/irq.c              | 4 ++--
 arch/x86/kvm/vmx.c              | 2 +-
 arch/x86/kvm/x86.c              | 8 ++++----
 arch/x86/kvm/x86.h              | 6 +++---
 5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 1bfb99770c34..f8ad3ca11a3a 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -556,7 +556,7 @@ struct kvm_vcpu_arch {
 	} exception;
 
 	struct kvm_queued_interrupt {
-		bool pending;
+		bool injected;
 		bool soft;
 		u8 nr;
 	} interrupt;
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index 5c24811e8b0b..1f7f37d1c8b9 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c
@@ -74,7 +74,7 @@ static int kvm_cpu_has_extint(struct kvm_vcpu *v)
 int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v)
 {
 	if (!lapic_in_kernel(v))
-		return v->arch.interrupt.pending;
+		return v->arch.interrupt.injected;
 
 	if (kvm_cpu_has_extint(v))
 		return 1;
@@ -92,7 +92,7 @@ int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v)
 int kvm_cpu_has_interrupt(struct kvm_vcpu *v)
 {
 	if (!lapic_in_kernel(v))
-		return v->arch.interrupt.pending;
+		return v->arch.interrupt.injected;
 
 	if (kvm_cpu_has_extint(v))
 		return 1;
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index c8a7bcc1bbd4..d939ed84f136 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -11007,7 +11007,7 @@ static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu,
 	} else if (vcpu->arch.nmi_injected) {
 		vmcs12->idt_vectoring_info_field =
 			INTR_TYPE_NMI_INTR | INTR_INFO_VALID_MASK | NMI_VECTOR;
-	} else if (vcpu->arch.interrupt.pending) {
+	} else if (vcpu->arch.interrupt.injected) {
 		nr = vcpu->arch.interrupt.nr;
 		idt_vectoring = nr | VECTORING_INFO_VALID_MASK;
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c85fc4406a7d..45baba8bc02e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3111,7 +3111,7 @@ static void kvm_vcpu_ioctl_x86_get_vcpu_events(struct kvm_vcpu *vcpu,
 	events->exception.error_code = vcpu->arch.exception.error_code;
 
 	events->interrupt.injected =
-		vcpu->arch.interrupt.pending && !vcpu->arch.interrupt.soft;
+		vcpu->arch.interrupt.injected && !vcpu->arch.interrupt.soft;
 	events->interrupt.nr = vcpu->arch.interrupt.nr;
 	events->interrupt.soft = 0;
 	events->interrupt.shadow = kvm_x86_ops->get_interrupt_shadow(vcpu);
@@ -3164,7 +3164,7 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
 	vcpu->arch.exception.has_error_code = events->exception.has_error_code;
 	vcpu->arch.exception.error_code = events->exception.error_code;
 
-	vcpu->arch.interrupt.pending = events->interrupt.injected;
+	vcpu->arch.interrupt.injected = events->interrupt.injected;
 	vcpu->arch.interrupt.nr = events->interrupt.nr;
 	vcpu->arch.interrupt.soft = events->interrupt.soft;
 	if (events->flags & KVM_VCPUEVENT_VALID_SHADOW)
@@ -6406,7 +6406,7 @@ static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win)
 			return 0;
 		}
 
-		if (vcpu->arch.interrupt.pending) {
+		if (vcpu->arch.interrupt.injected) {
 			kvm_x86_ops->set_irq(vcpu);
 			return 0;
 		}
@@ -7413,7 +7413,7 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 
 	memset(sregs->interrupt_bitmap, 0, sizeof sregs->interrupt_bitmap);
 
-	if (vcpu->arch.interrupt.pending && !vcpu->arch.interrupt.soft)
+	if (vcpu->arch.interrupt.injected && !vcpu->arch.interrupt.soft)
 		set_bit(vcpu->arch.interrupt.nr,
 			(unsigned long *)sregs->interrupt_bitmap);
 
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index 6d112d8f799c..4eab2bae5937 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -19,19 +19,19 @@ static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
 static inline void kvm_queue_interrupt(struct kvm_vcpu *vcpu, u8 vector,
 	bool soft)
 {
-	vcpu->arch.interrupt.pending = true;
+	vcpu->arch.interrupt.injected = true;
 	vcpu->arch.interrupt.soft = soft;
 	vcpu->arch.interrupt.nr = vector;
 }
 
 static inline void kvm_clear_interrupt_queue(struct kvm_vcpu *vcpu)
 {
-	vcpu->arch.interrupt.pending = false;
+	vcpu->arch.interrupt.injected = false;
 }
 
 static inline bool kvm_event_needs_reinjection(struct kvm_vcpu *vcpu)
 {
-	return vcpu->arch.exception.injected || vcpu->arch.interrupt.pending ||
+	return vcpu->arch.exception.injected || vcpu->arch.interrupt.injected ||
 		vcpu->arch.nmi_injected;
 }
 
-- 
1.9.1
