init android origin source code

1 files changed, 96 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/arch/x86/kvm/irq.c b/ANDROID_3.4.5/arch/x86/kvm/irq.c
new file mode 100644
index 00000000..7e06ba16
--- /dev/null
+++ b/ANDROID_3.4.5/arch/x86/kvm/irq.c
@@ -0,0 +1,96 @@
+/*
+ * irq.c: API for in kernel interrupt controller
+ * Copyright (c) 2007, Intel Corporation.
+ * Copyright 2009 Red Hat, Inc. and/or its affiliates.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ * Authors:
+ *   Yaozu (Eddie) Dong <Eddie.dong@intel.com>
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kvm_host.h>
+
+#include "irq.h"
+#include "i8254.h"
+#include "x86.h"
+
+/*
+ * check if there are pending timer events
+ * to be processed.
+ */
+int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
+{
+	return apic_has_pending_timer(vcpu);
+}
+EXPORT_SYMBOL(kvm_cpu_has_pending_timer);
+
+/*
+ * check if there is pending interrupt without
+ * intack.
+ */
+int kvm_cpu_has_interrupt(struct kvm_vcpu *v)
+{
+	struct kvm_pic *s;
+
+	if (!irqchip_in_kernel(v->kvm))
+		return v->arch.interrupt.pending;
+
+	if (kvm_apic_has_interrupt(v) == -1) {	/* LAPIC */
+		if (kvm_apic_accept_pic_intr(v)) {
+			s = pic_irqchip(v->kvm);	/* PIC */
+			return s->output;
+		} else
+			return 0;
+	}
+	return 1;
+}
+EXPORT_SYMBOL_GPL(kvm_cpu_has_interrupt);
+
+/*
+ * Read pending interrupt vector and intack.
+ */
+int kvm_cpu_get_interrupt(struct kvm_vcpu *v)
+{
+	struct kvm_pic *s;
+	int vector;
+
+	if (!irqchip_in_kernel(v->kvm))
+		return v->arch.interrupt.nr;
+
+	vector = kvm_get_apic_interrupt(v);	/* APIC */
+	if (vector == -1) {
+		if (kvm_apic_accept_pic_intr(v)) {
+			s = pic_irqchip(v->kvm);
+			s->output = 0;		/* PIC */
+			vector = kvm_pic_read_irq(v->kvm);
+		}
+	}
+	return vector;
+}
+EXPORT_SYMBOL_GPL(kvm_cpu_get_interrupt);
+
+void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu)
+{
+	kvm_inject_apic_timer_irqs(vcpu);
+	/* TODO: PIT, RTC etc. */
+}
+EXPORT_SYMBOL_GPL(kvm_inject_pending_timer_irqs);
+
+void __kvm_migrate_timers(struct kvm_vcpu *vcpu)
+{
+	__kvm_migrate_apic_timer(vcpu);
+	__kvm_migrate_pit_timer(vcpu);
+}