From 8dc6aade5bdc9d436d4ab8328cb15f0adbbc47bf Mon Sep 17 00:00:00 2001
From: Yang Zhang <yang.z.zhang@Intel.com>
Date: Thu, 11 Apr 2013 19:21:36 +0800
Subject: [PATCH] KVM: Introduce struct rtc_status

rtc_status is used to track RTC interrupt delivery status. The pending_eoi
will be increased by vcpu who received RTC interrupt and will be decreased
when EOI to this interrupt.
Also, we use dest_map to record the destination vcpu to avoid the case that
vcpu who didn't get the RTC interupt, but issued EOI with same vector of RTC
and descreased pending_eoi by mistake.

Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---
 virt/kvm/ioapic.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/virt/kvm/ioapic.h b/virt/kvm/ioapic.h
index 2fc61a5013d2..87cd94bae372 100644
--- a/virt/kvm/ioapic.h
+++ b/virt/kvm/ioapic.h
@@ -34,6 +34,17 @@ struct kvm_vcpu;
 #define	IOAPIC_INIT			0x5
 #define	IOAPIC_EXTINT			0x7
 
+#ifdef CONFIG_X86
+#define RTC_GSI 8
+#else
+#define RTC_GSI -1U
+#endif
+
+struct rtc_status {
+	int pending_eoi;
+	DECLARE_BITMAP(dest_map, KVM_MAX_VCPUS);
+};
+
 struct kvm_ioapic {
 	u64 base_address;
 	u32 ioregsel;
@@ -47,6 +58,7 @@ struct kvm_ioapic {
 	void (*ack_notifier)(void *opaque, int irq);
 	spinlock_t lock;
 	DECLARE_BITMAP(handled_vectors, 256);
+	struct rtc_status rtc_status;
 };
 
 #ifdef DEBUG
-- 
2.34.1