KVM: Remove arch specific components from the general code

struct kvm_vcpu has vmx-specific members; remove them to a private structure.
Signed-off-by: Gregory Haskins <ghaskins@novell.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>

drivers/kvm/kvm.h

@@ -15,7 +15,6 @@
 #include <linux/mm.h>
 #include <asm/signal.h>
 
-#include "vmx.h"
 #include <linux/kvm.h>
 #include <linux/kvm_para.h>
 
@@ -140,14 +139,6 @@ struct kvm_mmu_page {
 	};
 };
 
-struct vmcs {
-	u32 revision_id;
-	u32 abort;
-	char data[0];
-};
-
-#define vmx_msr_entry kvm_msr_entry
-
 struct kvm_vcpu;
 
 /*
@@ -309,15 +300,12 @@ void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
 			     struct kvm_io_device *dev);
 
 struct kvm_vcpu {
+	int valid;
 	struct kvm *kvm;
 	int vcpu_id;
-	union {
-		struct vmcs *vmcs;
-		struct vcpu_svm *svm;
-	};
+	void *_priv;
 	struct mutex mutex;
 	int   cpu;
-	int   launched;
 	u64 host_tsc;
 	struct kvm_run *run;
 	int interrupt_window_open;
@@ -340,14 +328,6 @@ struct kvm_vcpu {
 	u64 shadow_efer;
 	u64 apic_base;
 	u64 ia32_misc_enable_msr;
-	int nmsrs;
-	int save_nmsrs;
-	int msr_offset_efer;
-#ifdef CONFIG_X86_64
-	int msr_offset_kernel_gs_base;
-#endif
-	struct vmx_msr_entry *guest_msrs;
-	struct vmx_msr_entry *host_msrs;
 
 	struct kvm_mmu mmu;
 
@@ -366,11 +346,6 @@ struct kvm_vcpu {
 	char *guest_fx_image;
 	int fpu_active;
 	int guest_fpu_loaded;
-	struct vmx_host_state {
-		int loaded;
-		u16 fs_sel, gs_sel, ldt_sel;
-		int fs_gs_ldt_reload_needed;
-	} vmx_host_state;
 
 	int mmio_needed;
 	int mmio_read_completed;
@@ -579,8 +554,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
 
 void fx_init(struct kvm_vcpu *vcpu);
 
-void load_msrs(struct vmx_msr_entry *e, int n);
-void save_msrs(struct vmx_msr_entry *e, int n);
 void kvm_resched(struct kvm_vcpu *vcpu);
 void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
 void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);

drivers/kvm/kvm_main.c

@@ -367,7 +367,7 @@ static void free_pio_guest_pages(struct kvm_vcpu *vcpu)
 
 static void kvm_unload_vcpu_mmu(struct kvm_vcpu *vcpu)
 {
-	if (!vcpu->vmcs)
+	if (!vcpu->valid)
 		return;
 
 	vcpu_load(vcpu);
@@ -377,7 +377,7 @@ static void kvm_unload_vcpu_mmu(struct kvm_vcpu *vcpu)
 
 static void kvm_free_vcpu(struct kvm_vcpu *vcpu)
 {
-	if (!vcpu->vmcs)
+	if (!vcpu->valid)
 		return;
 
 	vcpu_load(vcpu);
@@ -1645,24 +1645,6 @@ void kvm_resched(struct kvm_vcpu *vcpu)
 }
 EXPORT_SYMBOL_GPL(kvm_resched);
 
-void load_msrs(struct vmx_msr_entry *e, int n)
-{
-	int i;
-
-	for (i = 0; i < n; ++i)
-		wrmsrl(e[i].index, e[i].data);
-}
-EXPORT_SYMBOL_GPL(load_msrs);
-
-void save_msrs(struct vmx_msr_entry *e, int n)
-{
-	int i;
-
-	for (i = 0; i < n; ++i)
-		rdmsrl(e[i].index, e[i].data);
-}
-EXPORT_SYMBOL_GPL(save_msrs);
-
 void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
 {
 	int i;
@@ -2401,7 +2383,7 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, int n)
 
 	mutex_lock(&vcpu->mutex);
 
-	if (vcpu->vmcs) {
+	if (vcpu->valid) {
 		mutex_unlock(&vcpu->mutex);
 		return -EEXIST;
 	}
@@ -2449,6 +2431,8 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, int n)
 		kvm->nvcpus = n + 1;
 	spin_unlock(&kvm_lock);
 
+	vcpu->valid = 1;
+
 	return r;
 
 out_free_vcpus:

drivers/kvm/kvm_svm.h

@@ -20,7 +20,10 @@ static const u32 host_save_user_msrs[] = {
 #define NR_HOST_SAVE_USER_MSRS ARRAY_SIZE(host_save_user_msrs)
 #define NUM_DB_REGS 4
 
+struct kvm_vcpu;
+
 struct vcpu_svm {
+	struct kvm_vcpu *vcpu;
 	struct vmcb *vmcb;
 	unsigned long vmcb_pa;
 	struct svm_cpu_data *svm_data;