Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/avi/kvm

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (249 commits)
  KVM: Move apic timer migration away from critical section
  KVM: Put kvm_para.h include outside __KERNEL__
  KVM: Fix unbounded preemption latency
  KVM: Initialize the mmu caches only after verifying cpu support
  KVM: MMU: Fix dirty page setting for pages removed from rmap
  KVM: Portability: Move kvm_fpu to asm-x86/kvm.h
  KVM: x86 emulator: Only allow VMCALL/VMMCALL trapped by #UD
  KVM: MMU: Merge shadow level check in FNAME(fetch)
  KVM: MMU: Move kvm_free_some_pages() into critical section
  KVM: MMU: Switch to mmu spinlock
  KVM: MMU: Avoid calling gfn_to_page() in mmu_set_spte()
  KVM: Add kvm_read_guest_atomic()
  KVM: MMU: Concurrent guest walkers
  KVM: Disable vapic support on Intel machines with FlexPriority
  KVM: Accelerated apic support
  KVM: local APIC TPR access reporting facility
  KVM: Print data for unimplemented wrmsr
  KVM: MMU: Add cache miss statistic
  KVM: MMU: Coalesce remote tlb flushes
  KVM: Expose ioapic to ia64 save/restore APIs
  ...

arch/x86/Kconfig

@@ -107,6 +107,7 @@ config ARCH_SUPPORTS_OPROFILE
 	bool
 	default y
 
+select HAVE_KVM
 
 config ZONE_DMA32
 	bool
@@ -1598,4 +1599,6 @@ source "security/Kconfig"
 
 source "crypto/Kconfig"
 
+source "arch/x86/kvm/Kconfig"
+
 source "lib/Kconfig"

arch/x86/Makefile

@@ -7,6 +7,8 @@ else
         KBUILD_DEFCONFIG := $(ARCH)_defconfig
 endif
 
+core-$(CONFIG_KVM) += arch/x86/kvm/
+
 # BITS is used as extension for files which are available in a 32 bit
 # and a 64 bit version to simplify shared Makefiles.
 # e.g.: obj-y += foo_$(BITS).o

drivers/kvm/Kconfig → arch/x86/kvm/Kconfig

@@ -1,9 +1,12 @@
 #
 # KVM configuration
 #
+config HAVE_KVM
+       bool
+
 menuconfig VIRTUALIZATION
 	bool "Virtualization"
-	depends on X86
+	depends on HAVE_KVM || X86
 	default y
 	---help---
 	  Say Y here to get to see options for using your Linux host to run other
@@ -16,7 +19,7 @@ if VIRTUALIZATION
 
 config KVM
 	tristate "Kernel-based Virtual Machine (KVM) support"
-	depends on X86 && EXPERIMENTAL
+	depends on HAVE_KVM && EXPERIMENTAL
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
 	---help---

drivers/kvm/Makefile → arch/x86/kvm/Makefile

@@ -2,7 +2,11 @@
 # Makefile for Kernel-based Virtual Machine module
 #
 
-kvm-objs := kvm_main.o mmu.o x86_emulate.o i8259.o irq.o lapic.o ioapic.o
+common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o)
+
+EXTRA_CFLAGS += -Ivirt/kvm -Iarch/x86/kvm
+
+kvm-objs := $(common-objs) x86.o mmu.o x86_emulate.o i8259.o irq.o lapic.o
 obj-$(CONFIG_KVM) += kvm.o
 kvm-intel-objs = vmx.o
 obj-$(CONFIG_KVM_INTEL) += kvm-intel.o

drivers/kvm/i8259.c → arch/x86/kvm/i8259.c

@@ -28,6 +28,8 @@
 #include <linux/mm.h>
 #include "irq.h"
 
+#include <linux/kvm_host.h>
+
 /*
  * set irq level. If an edge is detected, then the IRR is set to 1
  */
@@ -181,10 +183,8 @@ int kvm_pic_read_irq(struct kvm_pic *s)
 	return intno;
 }
 
-static void pic_reset(void *opaque)
+void kvm_pic_reset(struct kvm_kpic_state *s)
 {
-	struct kvm_kpic_state *s = opaque;
-
 	s->last_irr = 0;
 	s->irr = 0;
 	s->imr = 0;
@@ -209,7 +209,7 @@ static void pic_ioport_write(void *opaque, u32 addr, u32 val)
 	addr &= 1;
 	if (addr == 0) {
 		if (val & 0x10) {
-			pic_reset(s);	/* init */
+			kvm_pic_reset(s);	/* init */
 			/*
 			 * deassert a pending interrupt
 			 */

drivers/kvm/irq.c → arch/x86/kvm/irq.c

@@ -20,8 +20,8 @@
  */
 
 #include <linux/module.h>
+#include <linux/kvm_host.h>
 
-#include "kvm.h"
 #include "irq.h"
 
 /*
@@ -63,26 +63,6 @@ int kvm_cpu_get_interrupt(struct kvm_vcpu *v)
 }
 EXPORT_SYMBOL_GPL(kvm_cpu_get_interrupt);
 
-static void vcpu_kick_intr(void *info)
-{
-#ifdef DEBUG
-	struct kvm_vcpu *vcpu = (struct kvm_vcpu *)info;
-	printk(KERN_DEBUG "vcpu_kick_intr %p \n", vcpu);
-#endif
-}
-
-void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
-{
-	int ipi_pcpu = vcpu->cpu;
-
-	if (waitqueue_active(&vcpu->wq)) {
-		wake_up_interruptible(&vcpu->wq);
-		++vcpu->stat.halt_wakeup;
-	}
-	if (vcpu->guest_mode)
-		smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0, 0);
-}
-
 void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu)
 {
 	kvm_inject_apic_timer_irqs(vcpu);

arch/x86/kvm/irq.h

@@ -0,0 +1,88 @@
+/*
+ * irq.h: in kernel interrupt controller related definitions
+ * Copyright (c) 2007, Intel Corporation.
+ *
+ * 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>
+ *
+ */
+
+#ifndef __IRQ_H
+#define __IRQ_H
+
+#include <linux/mm_types.h>
+#include <linux/hrtimer.h>
+#include <linux/kvm_host.h>
+
+#include "iodev.h"
+#include "ioapic.h"
+#include "lapic.h"
+
+struct kvm;
+struct kvm_vcpu;
+
+typedef void irq_request_func(void *opaque, int level);
+
+struct kvm_kpic_state {
+	u8 last_irr;	/* edge detection */
+	u8 irr;		/* interrupt request register */
+	u8 imr;		/* interrupt mask register */
+	u8 isr;		/* interrupt service register */
+	u8 priority_add;	/* highest irq priority */
+	u8 irq_base;
+	u8 read_reg_select;
+	u8 poll;
+	u8 special_mask;
+	u8 init_state;
+	u8 auto_eoi;
+	u8 rotate_on_auto_eoi;
+	u8 special_fully_nested_mode;
+	u8 init4;		/* true if 4 byte init */
+	u8 elcr;		/* PIIX edge/trigger selection */
+	u8 elcr_mask;
+	struct kvm_pic *pics_state;
+};
+
+struct kvm_pic {
+	struct kvm_kpic_state pics[2]; /* 0 is master pic, 1 is slave pic */
+	irq_request_func *irq_request;
+	void *irq_request_opaque;
+	int output;		/* intr from master PIC */
+	struct kvm_io_device dev;
+};
+
+struct kvm_pic *kvm_create_pic(struct kvm *kvm);
+void kvm_pic_set_irq(void *opaque, int irq, int level);
+int kvm_pic_read_irq(struct kvm_pic *s);
+void kvm_pic_update_irq(struct kvm_pic *s);
+
+static inline struct kvm_pic *pic_irqchip(struct kvm *kvm)
+{
+	return kvm->arch.vpic;
+}
+
+static inline int irqchip_in_kernel(struct kvm *kvm)
+{
+	return pic_irqchip(kvm) != NULL;
+}
+
+void kvm_pic_reset(struct kvm_kpic_state *s);
+
+void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
+void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
+void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
+void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
+
+#endif

drivers/kvm/kvm_svm.h → arch/x86/kvm/kvm_svm.h

@@ -4,10 +4,10 @@
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/list.h>
+#include <linux/kvm_host.h>
 #include <asm/msr.h>
 
 #include "svm.h"
-#include "kvm.h"
 
 static const u32 host_save_user_msrs[] = {
 #ifdef CONFIG_X86_64