From d45b7f14ae6fa78882fa9ec3be976733ca4767b4 Mon Sep 17 00:00:00 2001
From: grehan <grehan@FreeBSD.org>
Date: Fri, 13 May 2011 04:54:01 +0000
Subject: Import of bhyve hypervisor and utilities, part 1.   vmm.ko - kernel
 module for VT-x, VT-d and hypervisor control   bhyve  - user-space sequencer
 and i/o emulation   vmmctl - dump of hypervisor register state   libvmm -
 front-end to vmm.ko chardev interface

bhyve was designed and implemented by Neel Natu.

Thanks to the following folk from NetApp who helped to make this available:
	Joe CaraDonna
	Peter Snyder
	Jeff Heller
	Sandeep Mann
	Steve Miller
	Brian Pawlowski
---
 sys/amd64/vmm/vmm_lapic.c | 121 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 sys/amd64/vmm/vmm_lapic.c

(limited to 'sys/amd64/vmm/vmm_lapic.c')

diff --git a/sys/amd64/vmm/vmm_lapic.c b/sys/amd64/vmm/vmm_lapic.c
new file mode 100644
index 0000000..8704fcf
--- /dev/null
+++ b/sys/amd64/vmm/vmm_lapic.c
@@ -0,0 +1,121 @@
+/*-
+ * Copyright (c) 2011 NetApp, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+
+#include <machine/vmm.h>
+#include "vmm_ipi.h"
+#include "vmm_lapic.h"
+#include "vlapic.h"
+
+int
+lapic_write(struct vm *vm, int cpu, u_int offset, uint64_t val)
+{
+	int handled;
+
+	struct vlapic *vlapic;
+
+	vlapic = vm_lapic(vm, cpu);
+
+	if (vlapic_op_mem_write(vlapic, offset, DWORD, val) == 0)
+		handled = 1;
+	else
+		handled = 0;
+
+	return (handled);
+}
+
+int
+lapic_read(struct vm *vm, int cpu, u_int offset, uint64_t *rv)
+{
+	int handled;
+
+	struct vlapic *vlapic;
+
+	vlapic = vm_lapic(vm, cpu);
+
+	if (vlapic_op_mem_read(vlapic, offset, DWORD, rv) == 0)
+		handled = 1;
+	else
+		handled = 0;
+
+	return (handled);
+}
+
+int
+lapic_pending_intr(struct vm *vm, int cpu)
+{
+	struct vlapic *vlapic;
+
+	vlapic = vm_lapic(vm, cpu);
+
+	return (vlapic_pending_intr(vlapic));
+}
+
+void
+lapic_intr_accepted(struct vm *vm, int cpu, int vector)
+{
+	struct vlapic *vlapic;
+
+	vlapic = vm_lapic(vm, cpu);
+
+	vlapic_intr_accepted(vlapic, vector);
+}
+
+int
+lapic_set_intr(struct vm *vm, int cpu, int vector)
+{
+	struct vlapic *vlapic;
+
+	if (cpu < 0 || cpu >= VM_MAXCPU)
+		return (EINVAL);
+
+	if (vector < 32 || vector > 255)
+		return (EINVAL);
+
+	vlapic = vm_lapic(vm, cpu);
+	vlapic_set_intr_ready(vlapic, vector);
+
+	vm_interrupt_hostcpu(vm, cpu);
+
+	return (0);
+}
+
+void
+lapic_timer_tick(struct vm *vm, int cpu)
+{
+	struct vlapic *vlapic;
+
+	vlapic = vm_lapic(vm, cpu);
+
+	vlapic_timer_tick(vlapic);
+}
-- 
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