HVM-143 kvm C files should all have the kvm_ prefix on them

1 files changed, 124 insertions, 0 deletions

diff --git a/kvm_lapic.c b/kvm_lapic.c
new file mode 100644
index 0000000..74a968d
--- /dev/null
+++ b/kvm_lapic.c
@@ -0,0 +1,124 @@
+/*
+ * Local APIC virtualization
+ *
+ * Copyright (C) 2006 Qumranet, Inc.
+ * Copyright (C) 2007 Novell
+ * Copyright (C) 2007 Intel
+ *
+ * Authors:
+ *   Dor Laor <dor.laor@qumranet.com>
+ *   Gregory Haskins <ghaskins@novell.com>
+ *   Yaozu (Eddie) Dong <eddie.dong@intel.com>
+ *
+ * Based on Xen 3.1 code, Copyright (c) 2004, Intel Corporation.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ * Ported to illumos by Joyent.
+ * Copyright 2011 Joyent, Inc. All rights reserved.
+ */
+
+#include <sys/atomic.h>
+
+/*
+ * XXX Need proper header files!
+ */
+#include "msr.h"
+#include "irqflags.h"
+#include "kvm_host.h"
+#include "kvm_x86host.h"
+#include "iodev.h"
+#include "kvm.h"
+#include "apicdef.h"
+#include "irq.h"
+
+extern uint32_t apic_get_reg(struct kvm_lapic *, int);
+extern int apic_enabled(struct kvm_lapic *);
+extern int apic_hw_enabled(struct kvm_lapic *);
+extern int __apic_accept_irq(struct kvm_lapic *, int, int, int, int);
+extern caddr_t page_address(page_t *);
+
+static int
+apic_lvt_enabled(struct kvm_lapic *apic, int lvt_type)
+{
+	return (!(apic_get_reg(apic, lvt_type) & APIC_LVT_MASKED));
+}
+
+int
+apic_has_pending_timer(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *lapic = vcpu->arch.apic;
+
+#ifdef XXX
+	if (lapic && apic_enabled(lapic) && apic_lvt_enabled(lapic, APIC_LVTT))
+		return (atomic_read(&lapic->lapic_timer.pending));
+#else
+	XXX_KVM_SYNC_PROBE;
+	if (lapic && apic_enabled(lapic) && apic_lvt_enabled(lapic, APIC_LVTT))
+		return (lapic->lapic_timer.pending);
+#endif
+
+	return (0);
+}
+
+static int
+kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type)
+{
+	uint32_t reg = apic_get_reg(apic, lvt_type);
+	int vector, mode, trig_mode;
+
+	if (apic_hw_enabled(apic) && !(reg & APIC_LVT_MASKED)) {
+		vector = reg & APIC_VECTOR_MASK;
+		mode = reg & APIC_MODE_MASK;
+		trig_mode = reg & APIC_LVT_LEVEL_TRIGGER;
+		return (__apic_accept_irq(apic, mode, vector, 1, trig_mode));
+	}
+	return (0);
+}
+
+void
+kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+
+#ifdef XXX
+	if (apic && atomic_read(&apic->lapic_timer.pending) > 0) {
+		if (kvm_apic_local_deliver(apic, APIC_LVTT))
+			atomic_dec(&apic->lapic_timer.pending);
+	}
+#else
+	XXX_KVM_SYNC_PROBE;
+	if (apic && apic->lapic_timer.pending > 0) {
+		if (kvm_apic_local_deliver(apic, APIC_LVTT))
+			atomic_dec_32(&apic->lapic_timer.pending);
+	}
+#endif
+}
+
+void
+kvm_apic_nmi_wd_deliver(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+
+	if (apic)
+		kvm_apic_local_deliver(apic, APIC_LVT0);
+}
+
+void
+kvm_free_lapic(struct kvm_vcpu *vcpu)
+{
+	struct kvm_lapic *apic = vcpu->arch.apic;
+	if (apic == NULL)
+		return;
+
+	mutex_enter(&cpu_lock);
+	if (apic->lapic_timer.active)
+		cyclic_remove(apic->lapic_timer.kvm_cyclic_id);
+	mutex_exit(&cpu_lock);
+
+	if (apic->regs_page)
+		kmem_free(page_address(apic->regs_page), PAGESIZE);
+
+	kmem_free(vcpu->arch.apic, sizeof (struct kvm_lapic));
+}