Merge tag 'kvm-4.14-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Radim Krčmář: "First batch of KVM changes for 4.14 Common: - improve heuristic for boosting preempted spinlocks by ignoring VCPUs in user mode ARM: - fix for decoding external abort types from guests - added support for migrating the active priority of interrupts when running a GICv2 guest on a GICv3 host - minor cleanup PPC: - expose storage keys to userspace - merge kvm-ppc-fixes with a fix that missed 4.13 because of vacations - fixes s390: - merge of kvm/master to avoid conflicts with additional sthyi fixes - wire up the no-dat enhancements in KVM - multiple epoch facility (z14 feature) - Configuration z/Architecture Mode - more sthyi fixes - gdb server range checking fix - small code cleanups x86: - emulate Hyper-V TSC frequency MSRs - add nested INVPCID - emulate EPTP switching VMFUNC - support Virtual GIF - support 5 level page tables - speedup nested VM exits by packing byte operations - speedup MMIO by using hardware provided physical address - a lot of fixes and cleanups, especially nested" * tag 'kvm-4.14-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (67 commits) KVM: arm/arm64: Support uaccess of GICC_APRn KVM: arm/arm64: Extract GICv3 max APRn index calculation KVM: arm/arm64: vITS: Drop its_ite->lpi field KVM: arm/arm64: vgic: constify seq_operations and file_operations KVM: arm/arm64: Fix guest external abort matching KVM: PPC: Book3S HV: Fix memory leak in kvm_vm_ioctl_get_htab_fd KVM: s390: vsie: cleanup mcck reinjection KVM: s390: use WARN_ON_ONCE only for checking KVM: s390: guestdbg: fix range check KVM: PPC: Book3S HV: Report storage key support to userspace KVM: PPC: Book3S HV: Fix case where HDEC is treated as 32-bit on POWER9 KVM: PPC: Book3S HV: Fix invalid use of register expression KVM: PPC: Book3S HV: Fix H_REGISTER_VPA VPA size validation KVM: PPC: Book3S HV: Fix setting of storage key in H_ENTER KVM: PPC: e500mc: Fix a NULL dereference KVM: PPC: e500: Fix some NULL dereferences on error KVM: PPC: Book3S HV: Protect updates to spapr_tce_tables list KVM: s390: we are always in czam mode KVM: s390: expose no-DAT to guest and migration support KVM: s390: sthyi: remove invalid guest write access ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2017-09-08 15:18:36 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2017-09-08 15:18:36 -0700
commit: 0756b7fbb696d2cb18785da9cab13ec164017f64 (patch)
tree: d06242e3f35a7623e00068d7c95d06824f396df3 /arch/x86
parent: 6d6218976df142ba5594371f8dbd56650151c56f (diff)
parent: 5f54c8b2d4fad95d1f8ecbe023ebe6038e6d3760 (diff)
22 files changed, 1068 insertions, 621 deletions
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 42bbbf0f173d..2519c6c801c9 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -288,6 +288,7 @@
 #define X86_FEATURE_PFTHRESHOLD (15*32+12) /* pause filter threshold */
 #define X86_FEATURE_AVIC	(15*32+13) /* Virtual Interrupt Controller */
 #define X86_FEATURE_V_VMSAVE_VMLOAD (15*32+15) /* Virtual VMSAVE VMLOAD */
+#define X86_FEATURE_VGIF	(15*32+16) /* Virtual GIF */
 
 /* Intel-defined CPU features, CPUID level 0x00000007:0 (ecx), word 16 */
 #define X86_FEATURE_AVX512VBMI  (16*32+ 1) /* AVX512 Vector Bit Manipulation instructions*/
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index fde36f189836..fa2558e12024 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -219,8 +219,8 @@ struct x86_emulate_ops {
 			 struct x86_instruction_info *info,
 			 enum x86_intercept_stage stage);
 
-	void (*get_cpuid)(struct x86_emulate_ctxt *ctxt,
-			  u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
+	bool (*get_cpuid)(struct x86_emulate_ctxt *ctxt, u32 *eax, u32 *ebx,
+			  u32 *ecx, u32 *edx, bool check_limit);
 	void (*set_nmi_mask)(struct x86_emulate_ctxt *ctxt, bool masked);
 
 	unsigned (*get_hflags)(struct x86_emulate_ctxt *ctxt);
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 369e41c23f07..8844eee290b2 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -79,15 +79,14 @@
 			  | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
 			  | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
 
-#define CR3_L_MODE_RESERVED_BITS 0xFFFFFF0000000000ULL
 #define CR3_PCID_INVD		 BIT_64(63)
 #define CR4_RESERVED_BITS                                               \
 	(~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
 			  | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE     \
 			  | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
 			  | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
-			  | X86_CR4_OSXMMEXCPT | X86_CR4_VMXE | X86_CR4_SMAP \
-			  | X86_CR4_PKE))
+			  | X86_CR4_OSXMMEXCPT | X86_CR4_LA57 | X86_CR4_VMXE \
+			  | X86_CR4_SMAP | X86_CR4_PKE))
 
 #define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
 
@@ -204,7 +203,6 @@ enum {
 #define PFERR_GUEST_PAGE_MASK (1ULL << PFERR_GUEST_PAGE_BIT)
 
 #define PFERR_NESTED_GUEST_PAGE (PFERR_GUEST_PAGE_MASK |	\
-				 PFERR_USER_MASK |		\
 				 PFERR_WRITE_MASK |		\
 				 PFERR_PRESENT_MASK)
 
@@ -317,15 +315,17 @@ struct kvm_pio_request {
 	int size;
 };
 
+#define PT64_ROOT_MAX_LEVEL 5
+
 struct rsvd_bits_validate {
-	u64 rsvd_bits_mask[2][4];
+	u64 rsvd_bits_mask[2][PT64_ROOT_MAX_LEVEL];
 	u64 bad_mt_xwr;
 };
 
 /*
- * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
- * 32-bit).  The kvm_mmu structure abstracts the details of the current mmu
- * mode.
+ * x86 supports 4 paging modes (5-level 64-bit, 4-level 64-bit, 3-level 32-bit,
+ * and 2-level 32-bit).  The kvm_mmu structure abstracts the details of the
+ * current mmu mode.
  */
 struct kvm_mmu {
 	void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root);
@@ -548,8 +548,8 @@ struct kvm_vcpu_arch {
 
 	struct kvm_queued_exception {
 		bool pending;
+		bool injected;
 		bool has_error_code;
-		bool reinject;
 		u8 nr;
 		u32 error_code;
 		u8 nested_apf;
@@ -687,8 +687,12 @@ struct kvm_vcpu_arch {
 	int pending_ioapic_eoi;
 	int pending_external_vector;
 
-	/* GPA available (AMD only) */
+	/* GPA available */
 	bool gpa_available;
+	gpa_t gpa_val;
+
+	/* be preempted when it's in kernel-mode(cpl=0) */
+	bool preempted_in_kernel;
 };
 
 struct kvm_lpage_info {
@@ -979,7 +983,7 @@ struct kvm_x86_ops {
 	void (*deliver_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
 	int (*sync_pir_to_irr)(struct kvm_vcpu *vcpu);
 	int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
-	int (*get_tdp_level)(void);
+	int (*get_tdp_level)(struct kvm_vcpu *vcpu);
 	u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
 	int (*get_lpage_level)(void);
 	bool (*rdtscp_supported)(void);
@@ -1297,20 +1301,6 @@ static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
 	kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
 }
 
-static inline u64 get_canonical(u64 la)
-{
-	return ((int64_t)la << 16) >> 16;
-}
-
-static inline bool is_noncanonical_address(u64 la)
-{
-#ifdef CONFIG_X86_64
-	return get_canonical(la) != la;
-#else
-	return false;
-#endif
-}
-
 #define TSS_IOPB_BASE_OFFSET 0x66
 #define TSS_BASE_SIZE 0x68
 #define TSS_IOPB_SIZE (65536 / 8)
diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h
index 58fffe79e417..14835dd205a5 100644
--- a/arch/x86/include/asm/svm.h
+++ b/arch/x86/include/asm/svm.h
@@ -107,6 +107,9 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
 #define V_IRQ_SHIFT 8
 #define V_IRQ_MASK (1 << V_IRQ_SHIFT)
 
+#define V_GIF_SHIFT 9
+#define V_GIF_MASK (1 << V_GIF_SHIFT)
+
 #define V_INTR_PRIO_SHIFT 16
 #define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
 
@@ -116,6 +119,9 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
 #define V_INTR_MASKING_SHIFT 24
 #define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
 
+#define V_GIF_ENABLE_SHIFT 25
+#define V_GIF_ENABLE_MASK (1 << V_GIF_ENABLE_SHIFT)
+
 #define AVIC_ENABLE_SHIFT 31
 #define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT)
 
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 35cd06f636ab..caec8417539f 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -72,6 +72,7 @@
 #define SECONDARY_EXEC_PAUSE_LOOP_EXITING	0x00000400
 #define SECONDARY_EXEC_RDRAND			0x00000800
 #define SECONDARY_EXEC_ENABLE_INVPCID		0x00001000
+#define SECONDARY_EXEC_ENABLE_VMFUNC            0x00002000
 #define SECONDARY_EXEC_SHADOW_VMCS              0x00004000
 #define SECONDARY_EXEC_RDSEED			0x00010000
 #define SECONDARY_EXEC_ENABLE_PML               0x00020000
@@ -114,6 +115,10 @@
 #define VMX_MISC_SAVE_EFER_LMA			0x00000020
 #define VMX_MISC_ACTIVITY_HLT			0x00000040
 
+/* VMFUNC functions */
+#define VMX_VMFUNC_EPTP_SWITCHING               0x00000001
+#define VMFUNC_EPTP_ENTRIES  512
+
 static inline u32 vmx_basic_vmcs_revision_id(u64 vmx_basic)
 {
 	return vmx_basic & GENMASK_ULL(30, 0);
@@ -187,6 +192,8 @@ enum vmcs_field {
 	APIC_ACCESS_ADDR_HIGH		= 0x00002015,
 	POSTED_INTR_DESC_ADDR           = 0x00002016,
 	POSTED_INTR_DESC_ADDR_HIGH      = 0x00002017,
+	VM_FUNCTION_CONTROL             = 0x00002018,
+	VM_FUNCTION_CONTROL_HIGH        = 0x00002019,
 	EPT_POINTER                     = 0x0000201a,
 	EPT_POINTER_HIGH                = 0x0000201b,
 	EOI_EXIT_BITMAP0                = 0x0000201c,
@@ -197,6 +204,8 @@ enum vmcs_field {
 	EOI_EXIT_BITMAP2_HIGH           = 0x00002021,
 	EOI_EXIT_BITMAP3                = 0x00002022,
 	EOI_EXIT_BITMAP3_HIGH           = 0x00002023,
+	EPTP_LIST_ADDRESS               = 0x00002024,
+	EPTP_LIST_ADDRESS_HIGH          = 0x00002025,
 	VMREAD_BITMAP                   = 0x00002026,
 	VMWRITE_BITMAP                  = 0x00002028,
 	XSS_EXIT_BITMAP                 = 0x0000202C,
@@ -444,6 +453,7 @@ enum vmcs_field {
 
 #define VMX_EPT_EXECUTE_ONLY_BIT		(1ull)
 #define VMX_EPT_PAGE_WALK_4_BIT			(1ull << 6)
+#define VMX_EPT_PAGE_WALK_5_BIT			(1ull << 7)
 #define VMX_EPTP_UC_BIT				(1ull << 8)
 #define VMX_EPTP_WB_BIT				(1ull << 14)
 #define VMX_EPT_2MB_PAGE_BIT			(1ull << 16)
@@ -459,12 +469,14 @@ enum vmcs_field {
 #define VMX_VPID_EXTENT_GLOBAL_CONTEXT_BIT      (1ull << 10) /* (42 - 32) */
 #define VMX_VPID_EXTENT_SINGLE_NON_GLOBAL_BIT   (1ull << 11) /* (43 - 32) */
 
-#define VMX_EPT_DEFAULT_GAW			3
-#define VMX_EPT_MAX_GAW				0x4
 #define VMX_EPT_MT_EPTE_SHIFT			3
-#define VMX_EPT_GAW_EPTP_SHIFT			3
-#define VMX_EPT_AD_ENABLE_BIT			(1ull << 6)
-#define VMX_EPT_DEFAULT_MT			0x6ull
+#define VMX_EPTP_PWL_MASK			0x38ull
+#define VMX_EPTP_PWL_4				0x18ull
+#define VMX_EPTP_PWL_5				0x20ull
+#define VMX_EPTP_AD_ENABLE_BIT			(1ull << 6)
+#define VMX_EPTP_MT_MASK			0x7ull
+#define VMX_EPTP_MT_WB				0x6ull
+#define VMX_EPTP_MT_UC				0x0ull
 #define VMX_EPT_READABLE_MASK			0x1ull
 #define VMX_EPT_WRITABLE_MASK			0x2ull
 #define VMX_EPT_EXECUTABLE_MASK			0x4ull
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 19adbb418443..0099e10eb045 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -126,16 +126,20 @@ int kvm_update_cpuid(struct kvm_vcpu *vcpu)
 		best->ebx = xstate_required_size(vcpu->arch.xcr0, true);
 
 	/*
-	 * The existing code assumes virtual address is 48-bit in the canonical
-	 * address checks; exit if it is ever changed.
+	 * The existing code assumes virtual address is 48-bit or 57-bit in the
+	 * canonical address checks; exit if it is ever changed.
 	 */
 	best = kvm_find_cpuid_entry(vcpu, 0x80000008, 0);
-	if (best && ((best->eax & 0xff00) >> 8) != 48 &&
-		((best->eax & 0xff00) >> 8) != 0)
-		return -EINVAL;
+	if (best) {
+		int vaddr_bits = (best->eax & 0xff00) >> 8;
+
+		if (vaddr_bits != 48 && vaddr_bits != 57 && vaddr_bits != 0)
+			return -EINVAL;
+	}
 
 	/* Update physical-address width */
 	vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
+	kvm_mmu_reset_context(vcpu);
 
 	kvm_pmu_refresh(vcpu);
 	return 0;
@@ -383,7 +387,8 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
 
 	/* cpuid 7.0.ecx*/
 	const u32 kvm_cpuid_7_0_ecx_x86_features =
-		F(AVX512VBMI) | F(PKU) | 0 /*OSPKE*/ | F(AVX512_VPOPCNTDQ);
+		F(AVX512VBMI) | F(LA57) | F(PKU) |
+		0 /*OSPKE*/ | F(AVX512_VPOPCNTDQ);
 
 	/* cpuid 7.0.edx*/
 	const u32 kvm_cpuid_7_0_edx_x86_features =
@@ -853,16 +858,24 @@ static struct kvm_cpuid_entry2* check_cpuid_limit(struct kvm_vcpu *vcpu,
 	return kvm_find_cpuid_entry(vcpu, maxlevel->eax, index);
 }
 
-void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
+bool kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx,
+	       u32 *ecx, u32 *edx, bool check_limit)
 {
 	u32 function = *eax, index = *ecx;
 	struct kvm_cpuid_entry2 *best;
+	bool entry_found = true;
 
 	best = kvm_find_cpuid_entry(vcpu, function, index);
 
-	if (!best)
+	if (!best) {
+		entry_found = false;
+		if (!check_limit)
+			goto out;
+
 		best = check_cpuid_limit(vcpu, function, index);
+	}
 
+out:
 	if (best) {
 		*eax = best->eax;
 		*ebx = best->ebx;
@@ -870,7 +883,8 @@ void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
 		*edx = best->edx;
 	} else
 		*eax = *ebx = *ecx = *edx = 0;
-	trace_kvm_cpuid(function, *eax, *ebx, *ecx, *edx);
+	trace_kvm_cpuid(function, *eax, *ebx, *ecx, *edx, entry_found);
+	return entry_found;
 }
 EXPORT_SYMBOL_GPL(kvm_cpuid);
 
@@ -883,7 +897,7 @@ int kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
 
 	eax = kvm_register_read(vcpu, VCPU_REGS_RAX);
 	ecx = kvm_register_read(vcpu, VCPU_REGS_RCX);
-	kvm_cpuid(vcpu, &eax, &ebx, &ecx, &edx);
+	kvm_cpuid(vcpu, &eax, &ebx, &ecx, &edx, true);
 	kvm_register_write(vcpu, VCPU_REGS_RAX, eax);
 	kvm_register_write(vcpu, VCPU_REGS_RBX, ebx);
 	kvm_register_write(vcpu, VCPU_REGS_RCX, ecx);
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index da6728383052..1ea3c0e1e3a9 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -3,6 +3,7 @@
 
 #include "x86.h"
 #include <asm/cpu.h>
+#include <asm/processor.h>
 
 int kvm_update_cpuid(struct kvm_vcpu *vcpu);
 bool kvm_mpx_supported(void);
@@ -20,7 +21,8 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
 int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
 			      struct kvm_cpuid2 *cpuid,
 			      struct kvm_cpuid_entry2 __user *entries);
-void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
+bool kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx,
+	       u32 *ecx, u32 *edx, bool check_limit);
 
 int cpuid_query_maxphyaddr(struct kvm_vcpu *vcpu);
 
@@ -29,95 +31,87 @@ static inline int cpuid_maxphyaddr(struct kvm_vcpu *vcpu)
 	return vcpu->arch.maxphyaddr;
 }
 
-static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	if (!static_cpu_has(X86_FEATURE_XSAVE))
-		return false;
-
-	best = kvm_find_cpuid_entry(vcpu, 1, 0);
-	return best && (best->ecx & bit(X86_FEATURE_XSAVE));
-}
-
-static inline bool guest_cpuid_has_mtrr(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 1, 0);
-	return best && (best->edx & bit(X86_FEATURE_MTRR));
-}
-
-static inline bool guest_cpuid_has_tsc_adjust(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 7, 0);
-	return best && (best->ebx & bit(X86_FEATURE_TSC_ADJUST));
-}
+struct cpuid_reg {
+	u32 function;
+	u32 index;
+	int reg;
+};
 
-static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 7, 0);
-	return best && (best->ebx & bit(X86_FEATURE_SMEP));
-}
+static const struct cpuid_reg reverse_cpuid[] = {
+	[CPUID_1_EDX]         = {         1, 0, CPUID_EDX},
+	[CPUID_8000_0001_EDX] = {0x80000001, 0, CPUID_EDX},
+	[CPUID_8086_0001_EDX] = {0x80860001, 0, CPUID_EDX},
+	[CPUID_1_ECX]         = {         1, 0, CPUID_ECX},
+	[CPUID_C000_0001_EDX] = {0xc0000001, 0, CPUID_EDX},
+	[CPUID_8000_0001_ECX] = {0xc0000001, 0, CPUID_ECX},
+	[CPUID_7_0_EBX]       = {         7, 0, CPUID_EBX},
+	[CPUID_D_1_EAX]       = {       0xd, 1, CPUID_EAX},
+	[CPUID_F_0_EDX]       = {       0xf, 0, CPUID_EDX},
+	[CPUID_F_1_EDX]       = {       0xf, 1, CPUID_EDX},
+	[CPUID_8000_0008_EBX] = {0x80000008, 0, CPUID_EBX},
+	[CPUID_6_EAX]         = {         6, 0, CPUID_EAX},
+	[CPUID_8000_000A_EDX] = {0x8000000a, 0, CPUID_EDX},
+	[CPUID_7_ECX]         = {         7, 0, CPUID_ECX},
+	[CPUID_8000_0007_EBX] = {0x80000007, 0, CPUID_EBX},
+};
 
-static inline bool guest_cpuid_has_smap(struct kvm_vcpu *vcpu)
+static __always_inline struct cpuid_reg x86_feature_cpuid(unsigned x86_feature)
 {
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 7, 0);
-	return best && (best->ebx & bit(X86_FEATURE_SMAP));
-}
+	unsigned x86_leaf = x86_feature / 32;
 
-static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
+	BUILD_BUG_ON(!__builtin_constant_p(x86_leaf));
+	BUILD_BUG_ON(x86_leaf >= ARRAY_SIZE(reverse_cpuid));
+	BUILD_BUG_ON(reverse_cpuid[x86_leaf].function == 0);
 
-	best = kvm_find_cpuid_entry(vcpu, 7, 0);
-	return best && (best->ebx & bit(X86_FEATURE_FSGSBASE));
+	return reverse_cpuid[x86_leaf];
 }
 
-static inline bool guest_cpuid_has_pku(struct kvm_vcpu *vcpu)
+static __always_inline int *guest_cpuid_get_register(struct kvm_vcpu *vcpu, unsigned x86_feature)
 {
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 7, 0);
-	return best && (best->ecx & bit(X86_FEATURE_PKU));
-}
+	struct kvm_cpuid_entry2 *entry;
+	const struct cpuid_reg cpuid = x86_feature_cpuid(x86_feature);
 
-static inline bool guest_cpuid_has_longmode(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
+	entry = kvm_find_cpuid_entry(vcpu, cpuid.function, cpuid.index);
+	if (!entry)
+		return NULL;
 
-	best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
-	return best && (best->edx & bit(X86_FEATURE_LM));
+	switch (cpuid.reg) {
+	case CPUID_EAX:
+		return &entry->eax;
+	case CPUID_EBX:
+		return &entry->ebx;
+	case CPUID_ECX:
+		return &entry->ecx;
+	case CPUID_EDX:
+		return &entry->edx;
+	default:
+		BUILD_BUG();
+		return NULL;
+	}
 }
 
-static inline bool guest_cpuid_has_osvw(struct kvm_vcpu *vcpu)
+static __always_inline bool guest_cpuid_has(struct kvm_vcpu *vcpu, unsigned x86_feature)
 {
-	struct kvm_cpuid_entry2 *best;
+	int *reg;
 
-	best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
-	return best && (best->ecx & bit(X86_FEATURE_OSVW));
-}
+	if (x86_feature == X86_FEATURE_XSAVE &&
+			!static_cpu_has(X86_FEATURE_XSAVE))
+		return false;
 
-static inline bool guest_cpuid_has_pcid(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
+	reg = guest_cpuid_get_register(vcpu, x86_feature);
+	if (!reg)
+		return false;
 
-	best = kvm_find_cpuid_entry(vcpu, 1, 0);
-	return best && (best->ecx & bit(X86_FEATURE_PCID));
+	return *reg & bit(x86_feature);
 }
 
-static inline bool guest_cpuid_has_x2apic(struct kvm_vcpu *vcpu)
+static __always_inline void guest_cpuid_clear(struct kvm_vcpu *vcpu, unsigned x86_feature)
 {
-	struct kvm_cpuid_entry2 *best;
+	int *reg;
 
-	best = kvm_find_cpuid_entry(vcpu, 1, 0);
-	return best && (best->ecx & bit(X86_FEATURE_X2APIC));
+	reg = guest_cpuid_get_register(vcpu, x86_feature);
+	if (reg)
+		*reg &= ~bit(x86_feature);
 }
 
 static inline bool guest_cpuid_is_amd(struct kvm_vcpu *vcpu)
@@ -128,58 +122,6 @@ static inline bool guest_cpuid_is_amd(struct kvm_vcpu *vcpu)
 	return best && best->ebx == X86EMUL_CPUID_VENDOR_AuthenticAMD_ebx;
 }
 
-static inline bool guest_cpuid_has_gbpages(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
-	return best && (best->edx & bit(X86_FEATURE_GBPAGES));
-}
-
-static inline bool guest_cpuid_has_rtm(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 7, 0);
-	return best && (best->ebx & bit(X86_FEATURE_RTM));
-}
-
-static inline bool guest_cpuid_has_mpx(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 7, 0);
-	return best && (best->ebx & bit(X86_FEATURE_MPX));
-}
-
-static inline bool guest_cpuid_has_rdtscp(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
-	return best && (best->edx & bit(X86_FEATURE_RDTSCP));
-}
-
-/*
- * NRIPS is provided through cpuidfn 0x8000000a.edx bit 3
- */
-#define BIT_NRIPS	3
-
-static inline bool guest_cpuid_has_nrips(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 0x8000000a, 0);
-
-	/*
-	 * NRIPS is a scattered cpuid feature, so we can't use
-	 * X86_FEATURE_NRIPS here (X86_FEATURE_NRIPS would be bit
-	 * position 8, not 3).
-	 */
-	return best && (best->edx & bit(BIT_NRIPS));
-}
-#undef BIT_NRIPS
-
 static inline int guest_cpuid_family(struct kvm_vcpu *vcpu)
 {
 	struct kvm_cpuid_entry2 *best;
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index fb0055953fbc..16bf6655aa85 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -28,6 +28,7 @@
 
 #include "x86.h"
 #include "tss.h"
+#include "mmu.h"
 
 /*
  * Operand types
@@ -688,16 +689,18 @@ static __always_inline int __linearize(struct x86_emulate_ctxt *ctxt,
 	ulong la;
 	u32 lim;
 	u16 sel;
+	u8  va_bits;
 
 	la = seg_base(ctxt, addr.seg) + addr.ea;
 	*max_size = 0;
 	switch (mode) {
 	case X86EMUL_MODE_PROT64:
 		*linear = la;
-		if (is_noncanonical_address(la))
+		va_bits = ctxt_virt_addr_bits(ctxt);
+		if (get_canonical(la, va_bits) != la)
 			goto bad;
 
-		*max_size = min_t(u64, ~0u, (1ull << 48) - la);
+		*max_size = min_t(u64, ~0u, (1ull << va_bits) - la);
 		if (size > *max_size)
 			goto bad;
 		break;
@@ -1748,8 +1751,8 @@ static int __load_segment_descriptor(struct x86_emulate_ctxt *ctxt,
 				sizeof(base3), &ctxt->exception);
 		if (ret != X86EMUL_CONTINUE)
 			return ret;
-		if (is_noncanonical_address(get_desc_base(&seg_desc) |
-					     ((u64)base3 << 32)))
+		if (emul_is_noncanonical_address(get_desc_base(&seg_desc) |
+				((u64)base3 << 32), ctxt))
 			return emulate_gp(ctxt, 0);
 	}
 load:
@@ -2333,7 +2336,7 @@ static int emulator_has_longmode(struct x86_emulate_ctxt *ctxt)
 
 	eax = 0x80000001;
 	ecx = 0;
-	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false);
 	return edx & bit(X86_FEATURE_LM);
 }
 
@@ -2636,7 +2639,7 @@ static bool vendor_intel(struct x86_emulate_ctxt *ctxt)
 	u32 eax, ebx, ecx, edx;
 
 	eax = ecx = 0;
-	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false);
 	return ebx == X86EMUL_CPUID_VENDOR_GenuineIntel_ebx
 		&& ecx == X86EMUL_CPUID_VENDOR_GenuineIntel_ecx
 		&& edx == X86EMUL_CPUID_VENDOR_GenuineIntel_edx;
@@ -2656,7 +2659,7 @@ static bool em_syscall_is_enabled(struct x86_emulate_ctxt *ctxt)
 
 	eax = 0x00000000;
 	ecx = 0x00000000;
-	ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+	ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false);
 	/*
 	 * Intel ("GenuineIntel")
 	 * remark: Intel CPUs only support "syscall" in 64bit
@@ -2840,8 +2843,8 @@ static int em_sysexit(struct x86_emulate_ctxt *ctxt)
 		ss_sel = cs_sel + 8;
 		cs.d = 0;
 		cs.l = 1;
-		if (is_noncanonical_address(rcx) ||
-		    is_noncanonical_address(rdx))
+		if (emul_is_noncanonical_address(rcx, ctxt) ||
+		    emul_is_noncanonical_address(rdx, ctxt))
 			return emulate_gp(ctxt, 0);
 		break;
 	}
@@ -3551,7 +3554,7 @@ static int em_movbe(struct x86_emulate_ctxt *ctxt)
 	/*
 	 * Check MOVBE is set in the guest-visible CPUID leaf.
 	 */
-	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false);
 	if (!(ecx & FFL(MOVBE)))
 		return emulate_ud(ctxt);
 
@@ -3756,7 +3759,7 @@ static int em_lgdt_lidt(struct x86_emulate_ctxt *ctxt, bool lgdt)
 	if (rc != X86EMUL_CONTINUE)
 		return rc;
 	if (ctxt->mode == X86EMUL_MODE_PROT64 &&
-	    is_noncanonical_address(desc_ptr.address))
+	    emul_is_noncanonical_address(desc_ptr.address, ctxt))
 		return emulate_gp(ctxt, 0);
 	if (lgdt)
 		ctxt->ops->set_gdt(ctxt, &desc_ptr);
@@ -3865,7 +3868,7 @@ static int em_cpuid(struct x86_emulate_ctxt *ctxt)
 
 	eax = reg_read(ctxt, VCPU_REGS_RAX);
 	ecx = reg_read(ctxt, VCPU_REGS_RCX);
-	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, true);
 	*reg_write(ctxt, VCPU_REGS_RAX) = eax;
 	*reg_write(ctxt, VCPU_REGS_RBX) = ebx;
 	*reg_write(ctxt, VCPU_REGS_RCX) = ecx;
@@ -3924,7 +3927,7 @@ static int check_fxsr(struct x86_emulate_ctxt *ctxt)
 {
 	u32 eax = 1, ebx, ecx = 0, edx;
 
-	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false);
 	if (!(edx & FFL(FXSR)))
 		return emulate_ud(ctxt);
 
@@ -4097,8 +4100,17 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt)
 		u64 rsvd = 0;
 
 		ctxt->ops->get_msr(ctxt, MSR_EFER, &efer);
-		if (efer & EFER_LMA)
-			rsvd = CR3_L_MODE_RESERVED_BITS & ~CR3_PCID_INVD;
+		if (efer & EFER_LMA) {
+			u64 maxphyaddr;
+			u32 eax = 0x80000008;
+
+			if (ctxt->ops->get_cpuid(ctxt, &eax, NULL, NULL,
+						 NULL, false))
+				maxphyaddr = eax & 0xff;
+			else
+				maxphyaddr = 36;
+			rsvd = rsvd_bits(maxphyaddr, 62);
+		}
 
 		if (new_val & rsvd)
 			return emulate_gp(ctxt, 0);
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 337b6d2730fa..dc97f2544b6f 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1160,6 +1160,12 @@ static int kvm_hv_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
 		return stimer_get_count(vcpu_to_stimer(vcpu, timer_index),
 					pdata);
 	}
+	case HV_X64_MSR_TSC_FREQUENCY:
+		data = (u64)vcpu->arch.virtual_tsc_khz * 1000;
+		break;
+	case HV_X64_MSR_APIC_FREQUENCY:
+		data = APIC_BUS_FREQUENCY;
+		break;
 	default:
 		vcpu_unimpl(vcpu, "Hyper-V unhandled rdmsr: 0x%x\n", msr);
 		return 1;
@@ -1268,7 +1274,7 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
 
 	switch (code) {
 	case HVCALL_NOTIFY_LONG_SPIN_WAIT:
-		kvm_vcpu_on_spin(vcpu);
+		kvm_vcpu_on_spin(vcpu, true);
 		break;
 	case HVCALL_POST_MESSAGE:
 	case HVCALL_SIGNAL_EVENT:
diff --git a/arch/x86/kvm/kvm_cache_regs.h b/arch/x86/kvm/kvm_cache_regs.h
index e1e89ee4af75..9add410f195f 100644
--- a/arch/x86/kvm/kvm_cache_regs.h
+++ b/arch/x86/kvm/kvm_cache_regs.h
@@ -4,7 +4,7 @@
 #define KVM_POSSIBLE_CR0_GUEST_BITS X86_CR0_TS
 #define KVM_POSSIBLE_CR4_GUEST_BITS				  \
 	(X86_CR4_PVI | X86_CR4_DE | X86_CR4_PCE | X86_CR4_OSFXSR  \
-	 | X86_CR4_OSXMMEXCPT | X86_CR4_PGE)
+	 | X86_CR4_OSXMMEXCPT | X86_CR4_LA57 | X86_CR4_PGE)
 
 static inline unsigned long kvm_register_read(struct kvm_vcpu *vcpu,
 					      enum kvm_reg reg)
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 589dcc117086..aaf10b6f5380 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -54,8 +54,6 @@
 #define PRIu64 "u"
 #define PRIo64 "o"
 
-#define APIC_BUS_CYCLE_NS 1
-
 /* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
 #define apic_debug(fmt, arg...)
 
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 29caa2c3dff9..215721e1426a 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -12,6 +12,9 @@
 #define KVM_APIC_SHORT_MASK	0xc0000
 #define KVM_APIC_DEST_MASK	0x800
 
+#define APIC_BUS_CYCLE_NS       1
+#define APIC_BUS_FREQUENCY      (1000000000ULL / APIC_BUS_CYCLE_NS)
+
 struct kvm_timer {
 	struct hrtimer timer;
 	s64 period; 				/* unit: ns */
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 04d750813c9d..eca30c1eb1d9 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2169,8 +2169,8 @@ static bool kvm_sync_pages(struct kvm_vcpu *vcpu, gfn_t gfn,
 }
 
 struct mmu_page_path {
-	struct kvm_mmu_page *parent[PT64_ROOT_LEVEL];
-	unsigned int idx[PT64_ROOT_LEVEL];
+	struct kvm_mmu_page *parent[PT64_ROOT_MAX_LEVEL];
+	unsigned int idx[PT64_ROOT_MAX_LEVEL];
 };
 
 #define for_each_sp(pvec, sp, parents, i)			\
@@ -2385,8 +2385,8 @@ static void shadow_walk_init(struct kvm_shadow_walk_iterator *iterator,
 	iterator->shadow_addr = vcpu->arch.mmu.root_hpa;
 	iterator->level = vcpu->arch.mmu.shadow_root_level;
 
-	if (iterator->level == PT64_ROOT_LEVEL &&
-	    vcpu->arch.mmu.root_level < PT64_ROOT_LEVEL &&
+	if (iterator->level == PT64_ROOT_4LEVEL &&
+	    vcpu->arch.mmu.root_level < PT64_ROOT_4LEVEL &&
 	    !vcpu->arch.mmu.direct_map)
 		--iterator->level;
 
@@ -2610,9 +2610,7 @@ static bool prepare_zap_oldest_mmu_page(struct kvm *kvm,
 
 	sp = list_last_entry(&kvm->arch.active_mmu_pages,
 			     struct kvm_mmu_page, link);
-	kvm_mmu_prepare_zap_page(kvm, sp, invalid_list);
-
-	return true;
+	return kvm_mmu_prepare_zap_page(kvm, sp, invalid_list);
 }
 
 /*
@@ -3262,7 +3260,7 @@ static bool fast_page_fault(struct kvm_vcpu *vcpu, gva_t gva, int level,
 
 static bool try_async_pf(struct kvm_vcpu *vcpu, bool prefault, gfn_t gfn,
 			 gva_t gva, kvm_pfn_t *pfn, bool write, bool *writable);
-static void make_mmu_pages_available(struct kvm_vcpu *vcpu);
+static int make_mmu_pages_available(struct kvm_vcpu *vcpu);
 
 static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, u32 error_code,
 			 gfn_t gfn, bool prefault)
@@ -3302,7 +3300,8 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, u32 error_code,
 	spin_lock(&vcpu->kvm->mmu_lock);
 	if (mmu_notifier_retry(vcpu->kvm, mmu_seq))
 		goto out_unlock;
-	make_mmu_pages_available(vcpu);
+	if (make_mmu_pages_available(vcpu) < 0)
+		goto out_unlock;
 	if (likely(!force_pt_level))
 		transparent_hugepage_adjust(vcpu, &gfn, &pfn, &level);
 	r = __direct_map(vcpu, write, map_writable, level, gfn, pfn, prefault);
@@ -3326,8 +3325,8 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
 	if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
 		return;
 
-	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL &&
-	    (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL ||
+	if (vcpu->arch.mmu.shadow_root_level >= PT64_ROOT_4LEVEL &&
+	    (vcpu->arch.mmu.root_level >= PT64_ROOT_4LEVEL ||
 	     vcpu->arch.mmu.direct_map)) {
 		hpa_t root = vcpu->arch.mmu.root_hpa;
 
@@ -3379,10 +3378,14 @@ static int mmu_alloc_direct_roots(struct kvm_vcpu *vcpu)
 	struct kvm_mmu_page *sp;
 	unsigned i;
 
-	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
+	if (vcpu->arch.mmu.shadow_root_level >= PT64_ROOT_4LEVEL) {
 		spin_lock(&vcpu->kvm->mmu_lock);
-		make_mmu_pages_available(vcpu);
-		sp = kvm_mmu_get_page(vcpu, 0, 0, PT64_ROOT_LEVEL, 1, ACC_ALL);
+		if(make_mmu_pages_available(vcpu) < 0) {
+			spin_unlock(&vcpu->kvm->mmu_lock);
+			return 1;
+		}
+		sp = kvm_mmu_get_page(vcpu, 0, 0,
+				vcpu->arch.mmu.shadow_root_level, 1, ACC_ALL);
 		++sp->root_count;
 		spin_unlock(&vcpu->kvm->mmu_lock);
 		vcpu->arch.mmu.root_hpa = __pa(sp->spt);
@@ -3392,7 +3395,10 @@ static int mmu_alloc_direct_roots(struct kvm_vcpu *vcpu)
 
 			MMU_WARN_ON(VALID_PAGE(root));
 			spin_lock(&vcpu->kvm->mmu_lock);
-			make_mmu_pages_available(vcpu);
+			if (make_mmu_pages_available(vcpu) < 0) {
+				spin_unlock(&vcpu->kvm->mmu_lock);
+				return 1;
+			}
 			sp = kvm_mmu_get_page(vcpu, i << (30 - PAGE_SHIFT),
 					i << 30, PT32_ROOT_LEVEL, 1, ACC_ALL);
 			root = __pa(sp->spt);
@@ -3423,15 +3429,18 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
 	 * Do we shadow a long mode page table? If so we need to
 	 * write-protect the guests page table root.
 	 */
-	if (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL) {
+	if (vcpu->arch.mmu.root_level >= PT64_ROOT_4LEVEL) {
 		hpa_t root = vcpu->arch.mmu.root_hpa;
 
 		MMU_WARN_ON(VALID_PAGE(root));
 
 		spin_lock(&vcpu->kvm->mmu_lock);
-		make_mmu_pages_available(vcpu);
-		sp = kvm_mmu_get_page(vcpu, root_gfn, 0, PT64_ROOT_LEVEL,
-				      0, ACC_ALL);
+		if (make_mmu_pages_available(vcpu) < 0) {
+			spin_unlock(&vcpu->kvm->mmu_lock);
+			return 1;
+		}
+		sp = kvm_mmu_get_page(vcpu, root_gfn, 0,
+				vcpu->arch.mmu.shadow_root_level, 0, ACC_ALL);
 		root = __pa(sp->spt);
 		++sp->root_count;
 		spin_unlock(&vcpu->kvm->mmu_lock);
@@ -3445,7 +3454,7 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
 	 * the shadow page table may be a PAE or a long mode page table.
 	 */
 	pm_mask = PT_PRESENT_MASK;
-	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL)
+	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_4LEVEL)
 		pm_mask |= PT_ACCESSED_MASK | PT_WRITABLE_MASK | PT_USER_MASK;
 
 	for (i = 0; i < 4; ++i) {
@@ -3463,7 +3472,10 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
 				return 1;
 		}
 		spin_lock(&vcpu->kvm->mmu_lock);
-		make_mmu_pages_available(vcpu);
+		if (make_mmu_pages_available(vcpu) < 0) {
+			spin_unlock(&vcpu->kvm->mmu_lock);
+			return 1;
+		}
 		sp = kvm_mmu_get_page(vcpu, root_gfn, i << 30, PT32_ROOT_LEVEL,
 				      0, ACC_ALL);
 		root = __pa(sp->spt);
@@ -3478,7 +3490,7 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
 	 * If we shadow a 32 bit page table with a long mode page
 	 * table we enter this path.
 	 */
-	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
+	if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_4LEVEL) {
 		if (vcpu->arch.mmu.lm_root == NULL) {
 			/*
 			 * The additional page necessary for this is only
@@ -3523,7 +3535,7 @@ static void mmu_sync_roots(struct kvm_vcpu *vcpu)
 
 	vcpu_clear_mmio_info(vcpu, MMIO_GVA_ANY);
 	kvm_mmu_audit(vcpu, AUDIT_PRE_SYNC);
-	if (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL) {
+	if (vcpu->arch.mmu.root_level >= PT64_ROOT_4LEVEL) {
 		hpa_t root = vcpu->arch.mmu.root_hpa;
 		sp = page_header(root);
 		mmu_sync_children(vcpu, sp);
@@ -3588,6 +3600,13 @@ static bool is_shadow_zero_bits_set(struct kvm_mmu *mmu, u64 spte, int level)
 
 static bool mmio_info_in_cache(struct kvm_vcpu *vcpu, u64 addr, bool direct)
 {
+	/*
+	 * A nested guest cannot use the MMIO cache if it is using nested
+	 * page tables, because cr2 is a nGPA while the cache stores GPAs.
+	 */
+	if (mmu_is_nested(vcpu))
+		return false;
+
 	if (direct)
 		return vcpu_match_mmio_gpa(vcpu, addr);
 
@@ -3599,7 +3618,7 @@ static bool
 walk_shadow_page_get_mmio_spte(struct kvm_vcpu *vcpu, u64 addr, u64 *sptep)
 {
 	struct kvm_shadow_walk_iterator iterator;
-	u64 sptes[PT64_ROOT_LEVEL], spte = 0ull;
+	u64 sptes[PT64_ROOT_MAX_LEVEL], spte = 0ull;
 	int root, leaf;
 	bool reserved = false;
 
@@ -3640,7 +3659,23 @@ exit:
 	return reserved;
 }
 
-int handle_mmio_page_fault(struct kvm_vcpu *vcpu, u64 addr, bool direct)
+/*
+ * Return values of handle_mmio_page_fault:
+ * RET_MMIO_PF_EMULATE: it is a real mmio page fault, emulate the instruction
+ *			directly.
+ * RET_MMIO_PF_INVALID: invalid spte is detected then let the real page
+ *			fault path update the mmio spte.
+ * RET_MMIO_PF_RETRY: let CPU fault again on the address.
+ * RET_MMIO_PF_BUG: a bug was detected (and a WARN was printed).
+ */
+enum {
+	RET_MMIO_PF_EMULATE = 1,
+	RET_MMIO_PF_INVALID = 2,
+	RET_MMIO_PF_RETRY = 0,
+	RET_MMIO_PF_BUG = -1
+};
+
+static int handle_mmio_page_fault(struct kvm_vcpu *vcpu, u64 addr, bool direct)
 {
 	u64 spte;
 	bool reserved;
@@ -3872,7 +3907,8 @@ static int tdp_page_fault(struct kvm_vcpu *vcpu, gva_t gpa, u32 error_code,
 	spin_lock(&vcpu->kvm->mmu_lock);
 	if (mmu_notifier_retry(vcpu->kvm, mmu_seq))
 		goto out_unlock;
-	make_mmu_pages_available(vcpu);
+	if (make_mmu_pages_available(vcpu) < 0)
+		goto out_unlock;
 	if (likely(!force_pt_level))
 		transparent_hugepage_adjust(vcpu, &gfn, &pfn, &level);
 	r = __direct_map(vcpu, write, map_writable, level, gfn, pfn, prefault);
@@ -4025,7 +4061,13 @@ __reset_rsvds_bits_mask(struct kvm_vcpu *vcpu,
 		rsvd_check->rsvd_bits_mask[1][0] =
 			rsvd_check->rsvd_bits_mask[0][0];
 		break;
-	case PT64_ROOT_LEVEL:
+	case PT64_ROOT_5LEVEL:
+		rsvd_check->rsvd_bits_mask[0][4] = exb_bit_rsvd |
+			nonleaf_bit8_rsvd | rsvd_bits(7, 7) |
+			rsvd_bits(maxphyaddr, 51);
+		rsvd_check->rsvd_bits_mask[1][4] =
+			rsvd_check->rsvd_bits_mask[0][4];
+	case PT64_ROOT_4LEVEL:
 		rsvd_check->rsvd_bits_mask[0][3] = exb_bit_rsvd |
 			nonleaf_bit8_rsvd | rsvd_bits(7, 7) |
 			rsvd_bits(maxphyaddr, 51);
@@ -4055,7 +4097,8 @@ static void reset_rsvds_bits_mask(struct kvm_vcpu *vcpu,
 {
 	__reset_rsvds_bits_mask(vcpu, &context->guest_rsvd_check,
 				cpuid_maxphyaddr(vcpu), context->root_level,
-				context->nx, guest_cpuid_has_gbpages(vcpu),
+				context->nx,
+				guest_cpuid_has(vcpu, X86_FEATURE_GBPAGES),
 				is_pse(vcpu), guest_cpuid_is_amd(vcpu));
 }
 
@@ -4065,6 +4108,8 @@ __reset_rsvds_bits_mask_ept(struct rsvd_bits_validate *rsvd_check,
 {
 	u64 bad_mt_xwr;
 
+	rsvd_check->rsvd_bits_mask[0][4] =
+		rsvd_bits(maxphyaddr, 51) | rsvd_bits(3, 7);
 	rsvd_check->rsvd_bits_mask[0][3] =
 		rsvd_bits(maxphyaddr, 51) | rsvd_bits(3, 7);
 	rsvd_check->rsvd_bits_mask[0][2] =
@@ -4074,6 +4119,7 @@ __reset_rsvds_bits_mask_ept(struct rsvd_bits_validate *rsvd_check,
 	rsvd_check->rsvd_bits_mask[0][0] = rsvd_bits(maxphyaddr, 51);
 
 	/* large page */
+	rsvd_check->rsvd_bits_mask[1][4] = rsvd_check->rsvd_bits_mask[0][4];
 	rsvd_check->rsvd_bits_mask[1][3] = rsvd_check->rsvd_bits_mask[0][3];
 	rsvd_check->rsvd_bits_mask[1][2] =
 		rsvd_bits(maxphyaddr, 51) | rsvd_bits(12, 29);
@@ -4120,8 +4166,8 @@ reset_shadow_zero_bits_mask(struct kvm_vcpu *vcpu, struct kvm_mmu *context)
 	__reset_rsvds_bits_mask(vcpu, shadow_zero_check,
 				boot_cpu_data.x86_phys_bits,
 				context->shadow_root_level, uses_nx,
-				guest_cpuid_has_gbpages(vcpu), is_pse(vcpu),
-				true);
+				guest_cpuid_has(vcpu, X86_FEATURE_GBPAGES),
+				is_pse(vcpu), true);
 
 	if (!shadow_me_mask)
 		return;
@@ -4185,66 +4231,85 @@ reset_ept_shadow_zero_bits_mask(struct kvm_vcpu *vcpu,
 				    boot_cpu_data.x86_phys_bits, execonly);
 }
 
+#define BYTE_MASK(access) \
+	((1 & (access) ? 2 : 0) | \
+	 (2 & (access) ? 4 : 0) | \
+	 (3 & (access) ? 8 : 0) | \
+	 (4 & (access) ? 16 : 0) | \
+	 (5 & (access) ? 32 : 0) | \
+	 (6 & (access) ? 64 : 0) | \
+	 (7 & (access) ? 128 : 0))
+
+
 static void update_permission_bitmask(struct kvm_vcpu *vcpu,
 				      struct kvm_mmu *mmu, bool ept)
 {
-	unsigned bit, byte, pfec;
-	u8 map;
-	bool fault, x, w, u, wf, uf, ff, smapf, cr4_smap, cr4_smep, smap = 0;
+	unsigned byte;
+
+	const u8 x = BYTE_MASK(ACC_EXEC_MASK);
+	const u8 w = BYTE_MASK(ACC_WRITE_MASK);
+	const u8 u = BYTE_MASK(ACC_USER_MASK);
+
+	bool cr4_smep = kvm_read_cr4_bits(vcpu, X86_CR4_SMEP) != 0;
+	bool cr4_smap = kvm_read_cr4_bits(vcpu, X86_CR4_SMAP) != 0;
+	bool cr0_wp = is_write_protection(vcpu);
 
-	cr4_smep = kvm_read_cr4_bits(vcpu, X86_CR4_SMEP);
-	cr4_smap = kvm_read_cr4_bits(vcpu, X86_CR4_SMAP);
 	for (byte = 0; byte < ARRAY_SIZE(mmu->permissions); ++byte) {
-		pfec = byte << 1;
-		map = 0;
-		wf = pfec & PFERR_WRITE_MASK;
-		uf = pfec & PFERR_USER_MASK;
-		ff = pfec & PFERR_FETCH_MASK;
+		unsigned pfec = byte << 1;
+
 		/*
-		 * PFERR_RSVD_MASK bit is set in PFEC if the access is not
-		 * subject to SMAP restrictions, and cleared otherwise. The
-		 * bit is only meaningful if the SMAP bit is set in CR4.
+		 * Each "*f" variable has a 1 bit for each UWX value
+		 * that causes a fault with the given PFEC.
 		 */
-		smapf = !(pfec & PFERR_RSVD_MASK);
-		for (bit = 0; bit < 8; ++bit) {
-			x = bit & ACC_EXEC_MASK;
-			w = bit & ACC_WRITE_MASK;
-			u = bit & ACC_USER_MASK;
-
-			if (!ept) {
-				/* Not really needed: !nx will cause pte.nx to fault */
-				x |= !mmu->nx;
-				/* Allow supervisor writes if !cr0.wp */
-				w |= !is_write_protection(vcpu) && !uf;
-				/* Disallow supervisor fetches of user code if cr4.smep */
-				x &= !(cr4_smep && u && !uf);
-
-				/*
-				 * SMAP:kernel-mode data accesses from user-mode
-				 * mappings should fault. A fault is considered
-				 * as a SMAP violation if all of the following
-				 * conditions are ture:
-				 *   - X86_CR4_SMAP is set in CR4
-				 *   - A user page is accessed
-				 *   - Page fault in kernel mode
-				 *   - if CPL = 3 or X86_EFLAGS_AC is clear
-				 *
-				 *   Here, we cover the first three conditions.
-				 *   The fourth is computed dynamically in
-				 *   permission_fault() and is in smapf.
-				 *
-				 *   Also, SMAP does not affect instruction
-				 *   fetches, add the !ff check here to make it
-				 *   clearer.
-				 */
-				smap = cr4_smap && u && !uf && !ff;
-			}
 
-			fault = (ff && !x) || (uf && !u) || (wf && !w) ||
-				(smapf && smap);
-			map |= fault << bit;
+		/* Faults from writes to non-writable pages */
+		u8 wf = (pfec & PFERR_WRITE_MASK) ? ~w : 0;
+		/* Faults from user mode accesses to supervisor pages */
+		u8 uf = (pfec & PFERR_USER_MASK) ? ~u : 0;
+		/* Faults from fetches of non-executable pages*/
+		u8 ff = (pfec & PFERR_FETCH_MASK) ? ~x : 0;
+		/* Faults from kernel mode fetches of user pages */
+		u8 smepf = 0;
+		/* Faults from kernel mode accesses of user pages */
+		u8 smapf = 0;
+
+		if (!ept) {
+			/* Faults from kernel mode accesses to user pages */
+			u8 kf = (pfec & PFERR_USER_MASK) ? 0 : u;
+
+			/* Not really needed: !nx will cause pte.nx to fault */
+			if (!mmu->nx)
+				ff = 0;
+
+			/* Allow supervisor writes if !cr0.wp */
+			if (!cr0_wp)
+				wf = (pfec & PFERR_USER_MASK) ? wf : 0;
+
+			/* Disallow supervisor fetches of user code if cr4.smep */
+			if (cr4_smep)
+				smepf = (pfec & PFERR_FETCH_MASK) ? kf : 0;
+
+			/*
+			 * SMAP:kernel-mode data accesses from user-mode
+			 * mappings should fault. A fault is considered
+			 * as a SMAP violation if all of the following
+			 * conditions are ture:
+			 *   - X86_CR4_SMAP is set in CR4
+			 *   - A user page is accessed
+			 *   - The access is not a fetch
+			 *   - Page fault in kernel mode
+			 *   - if CPL = 3 or X86_EFLAGS_AC is clear
+			 *
+			 * Here, we cover the first three conditions.
+			 * The fourth is computed dynamically in permission_fault();
+			 * PFERR_RSVD_MASK bit will be set in PFEC if the access is
+			 * *not* subject to SMAP restrictions.
+			 */
+			if (cr4_smap)
+				smapf = (pfec & (PFERR_RSVD_MASK|PFERR_FETCH_MASK)) ? 0 : kf;
 		}
-		mmu->permissions[byte] = map;
+
+		mmu->permissions[byte] = ff | uf | wf | smepf | smapf;
 	}
 }
 
@@ -4358,7 +4423,10 @@ static void paging64_init_context_common(struct kvm_vcpu *vcpu,
 static void paging64_init_context(struct kvm_vcpu *vcpu,
 				  struct kvm_mmu *context)
 {
-	paging64_init_context_common(vcpu, context, PT64_ROOT_LEVEL);
+	int root_level = is_la57_mode(vcpu) ?
+			 PT64_ROOT_5LEVEL : PT64_ROOT_4LEVEL;
+
+	paging64_init_context_common(vcpu, context, root_level);
 }
 
 static void paging32_init_context(struct kvm_vcpu *vcpu,
@@ -4399,7 +4467,7 @@ static void init_kvm_tdp_mmu(struct kvm_vcpu *vcpu)
 	context->sync_page = nonpaging_sync_page;
 	context->invlpg = nonpaging_invlpg;
 	context->update_pte = nonpaging_update_pte;
-	context->shadow_root_level = kvm_x86_ops->get_tdp_level();
+	context->shadow_root_level = kvm_x86_ops->get_tdp_level(vcpu);
 	context->root_hpa = INVALID_PAGE;
 	context->direct_map = true;
 	context->set_cr3 = kvm_x86_ops->set_tdp_cr3;
@@ -4413,7 +4481,8 @@ static void init_kvm_tdp_mmu(struct kvm_vcpu *vcpu)
 		context->root_level = 0;
 	} else if (is_long_mode(vcpu)) {
 		context->nx = is_nx(vcpu);
-		context->root_level = PT64_ROOT_LEVEL;
+		context->root_level = is_la57_mode(vcpu) ?
+				PT64_ROOT_5LEVEL : PT64_ROOT_4LEVEL;
 		reset_rsvds_bits_mask(vcpu, context);
 		context->gva_to_gpa = paging64_gva_to_gpa;
 	} else if (is_pae(vcpu)) {
@@ -4470,7 +4539,7 @@ void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly,
 
 	MMU_WARN_ON(VALID_PAGE(context->root_hpa));
 
-	context->shadow_root_level = kvm_x86_ops->get_tdp_level();
+	context->shadow_root_level = PT64_ROOT_4LEVEL;
 
 	context->nx = true;
 	context->ept_ad = accessed_dirty;
@@ -4479,7 +4548,7 @@ void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly,
 	context->sync_page = ept_sync_page;
 	context->invlpg = ept_invlpg;
 	context->update_pte = ept_update_pte;
-	context->root_level = context->shadow_root_level;
+	context->root_level = PT64_ROOT_4LEVEL;
 	context->root_hpa = INVALID_PAGE;
 	context->direct_map = false;
 	context->base_role.ad_disabled = !accessed_dirty;
@@ -4524,7 +4593,8 @@ static void init_kvm_nested_mmu(struct kvm_vcpu *vcpu)
 		g_context->gva_to_gpa = nonpaging_gva_to_gpa_nested;
 	} else if (is_long_mode(vcpu)) {
 		g_context->nx = is_nx(vcpu);
-		g_context->root_level = PT64_ROOT_LEVEL;
+		g_context->root_level = is_la57_mode(vcpu) ?
+					PT64_ROOT_5LEVEL : PT64_ROOT_4LEVEL;
 		reset_rsvds_bits_mask(vcpu, g_context);
 		g_context->gva_to_gpa = paging64_gva_to_gpa_nested;
 	} else if (is_pae(vcpu)) {
@@ -4814,12 +4884,12 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_unprotect_page_virt);
 
-static void make_mmu_pages_available(struct kvm_vcpu *vcpu)
+static int make_mmu_pages_available(struct kvm_vcpu *vcpu)
 {
 	LIST_HEAD(invalid_list);
 
 	if (likely(kvm_mmu_available_pages(vcpu->kvm) >= KVM_MIN_FREE_MMU_PAGES))
-		return;
+		return 0;
 
 	while (kvm_mmu_available_pages(vcpu->kvm) < KVM_REFILL_PAGES) {
 		if (!prepare_zap_oldest_mmu_page(vcpu->kvm, &invalid_list))
@@ -4828,6 +4898,10 @@ static void make_mmu_pages_available(struct kvm_vcpu *vcpu)
 		++vcpu->kvm->stat.mmu_recycled;
 	}
 	kvm_mmu_commit_zap_page(vcpu->kvm, &invalid_list);
+
+	if (!kvm_mmu_available_pages(vcpu->kvm))
+		return -ENOSPC;
+	return 0;
 }
 
 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
@@ -4835,7 +4909,13 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
 {
 	int r, emulation_type = EMULTYPE_RETRY;
 	enum emulation_result er;
-	bool direct = vcpu->arch.mmu.direct_map || mmu_is_nested(vcpu);
+	bool direct = vcpu->arch.mmu.direct_map;
+
+	/* With shadow page tables, fault_address contains a GVA or nGPA.  */
+	if (vcpu->arch.mmu.direct_map) {
+		vcpu->arch.gpa_available = true;
+		vcpu->arch.gpa_val = cr2;
+	}
 
 	if (unlikely(error_code & PFERR_RSVD_MASK)) {
 		r = handle_mmio_page_fault(vcpu, cr2, direct);
@@ -4847,6 +4927,7 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
 			return 1;
 		if (r < 0)
 			return r;
+		/* Must be RET_MMIO_PF_INVALID.  */
 	}
 
 	r = vcpu->arch.mmu.page_fault(vcpu, cr2, lower_32_bits(error_code),
@@ -4862,11 +4943,9 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
 	 * This can occur when using nested virtualization with nested
 	 * paging in both guests. If true, we simply unprotect the page
 	 * and resume the guest.
-	 *
-	 * Note: AMD only (since it supports the PFERR_GUEST_PAGE_MASK used
-	 *       in PFERR_NEXT_GUEST_PAGE)
 	 */
-	if (error_code == PFERR_NESTED_GUEST_PAGE) {
+	if (vcpu->arch.mmu.direct_map &&
+	    (error_code & PFERR_NESTED_GUEST_PAGE) == PFERR_NESTED_GUEST_PAGE) {
 		kvm_mmu_unprotect_page(vcpu->kvm, gpa_to_gfn(cr2));
 		return 1;
 	}
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index 4b9a3ae6b725..64a2dbd2b1af 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -37,7 +37,8 @@
 #define PT32_DIR_PSE36_MASK \
 	(((1ULL << PT32_DIR_PSE36_SIZE) - 1) << PT32_DIR_PSE36_SHIFT)
 
-#define PT64_ROOT_LEVEL 4
+#define PT64_ROOT_5LEVEL 5
+#define PT64_ROOT_4LEVEL 4
 #define PT32_ROOT_LEVEL 2
 #define PT32E_ROOT_LEVEL 3
 
@@ -48,6 +49,9 @@
 
 static inline u64 rsvd_bits(int s, int e)
 {
+	if (e < s)
+		return 0;
+
 	return ((1ULL << (e - s + 1)) - 1) << s;
 }
 
@@ -56,23 +60,6 @@ void kvm_mmu_set_mmio_spte_mask(u64 mmio_mask, u64 mmio_value);
 void
 reset_shadow_zero_bits_mask(struct kvm_vcpu *vcpu, struct kvm_mmu *context);
 
-/*
- * Return values of handle_mmio_page_fault:
- * RET_MMIO_PF_EMULATE: it is a real mmio page fault, emulate the instruction
- *			directly.
- * RET_MMIO_PF_INVALID: invalid spte is detected then let the real page
- *			fault path update the mmio spte.
- * RET_MMIO_PF_RETRY: let CPU fault again on the address.
- * RET_MMIO_PF_BUG: a bug was detected (and a WARN was printed).
- */
-enum {
-	RET_MMIO_PF_EMULATE = 1,
-	RET_MMIO_PF_INVALID = 2,
-	RET_MMIO_PF_RETRY = 0,
-	RET_MMIO_PF_BUG = -1
-};
-
-int handle_mmio_page_fault(struct kvm_vcpu *vcpu, u64 addr, bool direct);
 void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu);
 void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly,
 			     bool accessed_dirty);
diff --git a/arch/x86/kvm/mmu_audit.c b/arch/x86/kvm/mmu_audit.c
index dcce533d420c..d22ddbdf5e6e 100644
--- a/arch/x86/kvm/mmu_audit.c
+++ b/arch/x86/kvm/mmu_audit.c
@@ -62,11 +62,11 @@ static void mmu_spte_walk(struct kvm_vcpu *vcpu, inspect_spte_fn fn)
 	if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
 		return;
 
-	if (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL) {
+	if (vcpu->arch.mmu.root_level >= PT64_ROOT_4LEVEL) {
 		hpa_t root = vcpu->arch.mmu.root_hpa;
 
 		sp = page_header(root);
-		__mmu_spte_walk(vcpu, sp, fn, PT64_ROOT_LEVEL);
+		__mmu_spte_walk(vcpu, sp, fn, vcpu->arch.mmu.root_level);
 		return;
 	}
 
diff --git a/arch/x86/kvm/mtrr.c b/arch/x86/kvm/mtrr.c
index 0149ac59c273..e9ea2d45ae66 100644
--- a/arch/x86/kvm/mtrr.c
+++ b/arch/x86/kvm/mtrr.c
@@ -130,7 +130,7 @@ static u8 mtrr_disabled_type(struct kvm_vcpu *vcpu)
 	 * enable MTRRs and it is obviously undesirable to run the
 	 * guest entirely with UC memory and we use WB.
 	 */
-	if (guest_cpuid_has_mtrr(vcpu))
+	if (guest_cpuid_has(vcpu, X86_FEATURE_MTRR))
 		return MTRR_TYPE_UNCACHABLE;
 	else
 		return MTRR_TYPE_WRBACK;
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index b0454c7e4cff..86b68dc5a649 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -790,8 +790,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code,
 			 &map_writable))
 		return 0;
 
-	if (handle_abnormal_pfn(vcpu, mmu_is_nested(vcpu) ? 0 : addr,
-				walker.gfn, pfn, walker.pte_access, &r))
+	if (handle_abnormal_pfn(vcpu, addr, walker.gfn, pfn, walker.pte_access, &r))
 		return r;
 
 	/*
@@ -819,7 +818,8 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code,
 		goto out_unlock;
 
 	kvm_mmu_audit(vcpu, AUDIT_PRE_PAGE_FAULT);
-	make_mmu_pages_available(vcpu);
+	if (make_mmu_pages_available(vcpu) < 0)
+		goto out_unlock;
 	if (!force_pt_level)
 		transparent_hugepage_adjust(vcpu, &walker.gfn, &pfn, &level);
 	r = FNAME(fetch)(vcpu, addr, &walker, write_fault,
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 8dbd8dbc83eb..2c1cfe68a9af 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -280,9 +280,9 @@ module_param(avic, int, S_IRUGO);
 static int vls = true;
 module_param(vls, int, 0444);
 
-/* AVIC VM ID bit masks and lock */
-static DECLARE_BITMAP(avic_vm_id_bitmap, AVIC_VM_ID_NR);
-static DEFINE_SPINLOCK(avic_vm_id_lock);
+/* enable/disable Virtual GIF */
+static int vgif = true;
+module_param(vgif, int, 0444);
 
 static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
 static void svm_flush_tlb(struct kvm_vcpu *vcpu);
@@ -479,19 +479,33 @@ static inline void clr_intercept(struct vcpu_svm *svm, int bit)
 	recalc_intercepts(svm);
 }
 
+static inline bool vgif_enabled(struct vcpu_svm *svm)
+{
+	return !!(svm->vmcb->control.int_ctl & V_GIF_ENABLE_MASK);
+}
+
 static inline void enable_gif(struct vcpu_svm *svm)
 {
-	svm->vcpu.arch.hflags |= HF_GIF_MASK;
+	if (vgif_enabled(svm))
+		svm->vmcb->control.int_ctl |= V_GIF_MASK;
+	else
+		svm->vcpu.arch.hflags |= HF_GIF_MASK;
 }
 
 static inline void disable_gif(struct vcpu_svm *svm)
 {
-	svm->vcpu.arch.hflags &= ~HF_GIF_MASK;
+	if (vgif_enabled(svm))
+		svm->vmcb->control.int_ctl &= ~V_GIF_MASK;
+	else
+		svm->vcpu.arch.hflags &= ~HF_GIF_MASK;
 }
 
 static inline bool gif_set(struct vcpu_svm *svm)
 {
-	return !!(svm->vcpu.arch.hflags & HF_GIF_MASK);
+	if (vgif_enabled(svm))
+		return !!(svm->vmcb->control.int_ctl & V_GIF_MASK);
+	else
+		return !!(svm->vcpu.arch.hflags & HF_GIF_MASK);
 }
 
 static unsigned long iopm_base;
@@ -567,10 +581,10 @@ static inline void invlpga(unsigned long addr, u32 asid)
 	asm volatile (__ex(SVM_INVLPGA) : : "a"(addr), "c"(asid));
 }
 
-static int get_npt_level(void)
+static int get_npt_level(struct kvm_vcpu *vcpu)
 {
 #ifdef CONFIG_X86_64
-	return PT64_ROOT_LEVEL;
+	return PT64_ROOT_4LEVEL;
 #else
 	return PT32E_ROOT_LEVEL;
 #endif
@@ -641,7 +655,7 @@ static void svm_queue_exception(struct kvm_vcpu *vcpu)
 	struct vcpu_svm *svm = to_svm(vcpu);
 	unsigned nr = vcpu->arch.exception.nr;
 	bool has_error_code = vcpu->arch.exception.has_error_code;
-	bool reinject = vcpu->arch.exception.reinject;
+	bool reinject = vcpu->arch.exception.injected;
 	u32 error_code = vcpu->arch.exception.error_code;
 
 	/*
@@ -973,6 +987,7 @@ static void svm_disable_lbrv(struct vcpu_svm *svm)
 static void disable_nmi_singlestep(struct vcpu_svm *svm)
 {
 	svm->nmi_singlestep = false;
+
 	if (!(svm->vcpu.guest_debug & KVM_GUESTDBG_SINGLESTEP)) {
 		/* Clear our flags if they were not set by the guest */
 		if (!(svm->nmi_singlestep_guest_rflags & X86_EFLAGS_TF))
@@ -989,6 +1004,8 @@ static void disable_nmi_singlestep(struct vcpu_svm *svm)
  */
 #define SVM_VM_DATA_HASH_BITS	8
 static DEFINE_HASHTABLE(svm_vm_data_hash, SVM_VM_DATA_HASH_BITS);
+static u32 next_vm_id = 0;
+static bool next_vm_id_wrapped = 0;
 static DEFINE_SPINLOCK(svm_vm_data_hash_lock);
 
 /* Note:
@@ -1108,6 +1125,13 @@ static __init int svm_hardware_setup(void)
 		}
 	}
 
+	if (vgif) {
+		if (!boot_cpu_has(X86_FEATURE_VGIF))
+			vgif = false;
+		else
+			pr_info("Virtual GIF supported\n");
+	}
+
 	return 0;
 
 err:
@@ -1305,6 +1329,12 @@ static void init_vmcb(struct vcpu_svm *svm)
 		svm->vmcb->control.virt_ext |= VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK;
 	}
 
+	if (vgif) {
+		clr_intercept(svm, INTERCEPT_STGI);
+		clr_intercept(svm, INTERCEPT_CLGI);
+		svm->vmcb->control.int_ctl |= V_GIF_ENABLE_MASK;
+	}
+
 	mark_all_dirty(svm->vmcb);
 
 	enable_gif(svm);
@@ -1387,34 +1417,6 @@ static int avic_init_backing_page(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-static inline int avic_get_next_vm_id(void)
-{
-	int id;
-
-	spin_lock(&avic_vm_id_lock);
-
-	/* AVIC VM ID is one-based. */
-	id = find_next_zero_bit(avic_vm_id_bitmap, AVIC_VM_ID_NR, 1);
-	if (id <= AVIC_VM_ID_MASK)
-		__set_bit(id, avic_vm_id_bitmap);
-	else
-		id = -EAGAIN;
-
-	spin_unlock(&avic_vm_id_lock);
-	return id;
-}
-
-static inline int avic_free_vm_id(int id)
-{
-	if (id <= 0 || id > AVIC_VM_ID_MASK)
-		return -EINVAL;
-
-	spin_lock(&avic_vm_id_lock);
-	__clear_bit(id, avic_vm_id_bitmap);
-	spin_unlock(&avic_vm_id_lock);
-	return 0;
-}
-
 static void avic_vm_destroy(struct kvm *kvm)
 {
 	unsigned long flags;
@@ -1423,8 +1425,6 @@ static void avic_vm_destroy(struct kvm *kvm)
 	if (!avic)
 		return;
 
-	avic_free_vm_id(vm_data->avic_vm_id);
-
 	if (vm_data->avic_logical_id_table_page)
 		__free_page(vm_data->avic_logical_id_table_page);
 	if (vm_data->avic_physical_id_table_page)
@@ -1438,19 +1438,16 @@ static void avic_vm_destroy(struct kvm *kvm)
 static int avic_vm_init(struct kvm *kvm)
 {
 	unsigned long flags;
-	int vm_id, err = -ENOMEM;
+	int err = -ENOMEM;
 	struct kvm_arch *vm_data = &kvm->arch;
 	struct page *p_page;
 	struct page *l_page;
+	struct kvm_arch *ka;
+	u32 vm_id;
 
 	if (!avic)
 		return 0;
 
-	vm_id = avic_get_next_vm_id();
-	if (vm_id < 0)
-		return vm_id;
-	vm_data->avic_vm_id = (u32)vm_id;
-
 	/* Allocating physical APIC ID table (4KB) */
 	p_page = alloc_page(GFP_KERNEL);
 	if (!p_page)
@@ -1468,6 +1465,22 @@ static int avic_vm_init(struct kvm *kvm)
 	clear_page(page_address(l_page));
 
 	spin_lock_irqsave(&svm_vm_data_hash_lock, flags);
+ again:
+	vm_id = next_vm_id = (next_vm_id + 1) & AVIC_VM_ID_MASK;
+	if (vm_id == 0) { /* id is 1-based, zero is not okay */
+		next_vm_id_wrapped = 1;
+		goto again;
+	}
+	/* Is it still in use? Only possible if wrapped at least once */
+	if (next_vm_id_wrapped) {
+		hash_for_each_possible(svm_vm_data_hash, ka, hnode, vm_id) {
+			struct kvm *k2 = container_of(ka, struct kvm, arch);
+			struct kvm_arch *vd2 = &k2->arch;
+			if (vd2->avic_vm_id == vm_id)
+				goto again;
+		}
+	}
+	vm_data->avic_vm_id = vm_id;
 	hash_add(svm_vm_data_hash, &vm_data->hnode, vm_data->avic_vm_id);
 	spin_unlock_irqrestore(&svm_vm_data_hash_lock, flags);
 
@@ -1580,7 +1593,7 @@ static void svm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
 	}
 	init_vmcb(svm);
 
-	kvm_cpuid(vcpu, &eax, &dummy, &dummy, &dummy);
+	kvm_cpuid(vcpu, &eax, &dummy, &dummy, &dummy, true);
 	kvm_register_write(vcpu, VCPU_REGS_RDX, eax);
 
 	if (kvm_vcpu_apicv_active(vcpu) && !init_event)
@@ -2384,7 +2397,7 @@ static void nested_svm_init_mmu_context(struct kvm_vcpu *vcpu)
 	vcpu->arch.mmu.get_cr3           = nested_svm_get_tdp_cr3;
 	vcpu->arch.mmu.get_pdptr         = nested_svm_get_tdp_pdptr;
 	vcpu->arch.mmu.inject_page_fault = nested_svm_inject_npf_exit;
-	vcpu->arch.mmu.shadow_root_level = get_npt_level();
+	vcpu->arch.mmu.shadow_root_level = get_npt_level(vcpu);
 	reset_shadow_zero_bits_mask(vcpu, &vcpu->arch.mmu);
 	vcpu->arch.walk_mmu              = &vcpu->arch.nested_mmu;
 }
@@ -3147,6 +3160,13 @@ static int stgi_interception(struct vcpu_svm *svm)
 	if (nested_svm_check_permissions(svm))
 		return 1;
 
+	/*
+	 * If VGIF is enabled, the STGI intercept is only added to
+	 * detect the opening of the NMI window; remove it now.
+	 */
+	if (vgif_enabled(svm))
+		clr_intercept(svm, INTERCEPT_STGI);
+
 	svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
 	ret = kvm_skip_emulated_instruction(&svm->vcpu);
 	kvm_make_request(KVM_REQ_EVENT, &svm->vcpu);
@@ -3744,7 +3764,10 @@ static int interrupt_window_interception(struct vcpu_svm *svm)
 
 static int pause_interception(struct vcpu_svm *svm)
 {
-	kvm_vcpu_on_spin(&(svm->vcpu));
+	struct kvm_vcpu *vcpu = &svm->vcpu;
+	bool in_kernel = (svm_get_cpl(vcpu) == 0);
+
+	kvm_vcpu_on_spin(vcpu, in_kernel);
 	return 1;
 }
 
@@ -4228,8 +4251,6 @@ static int handle_exit(struct kvm_vcpu *vcpu)
 
 	trace_kvm_exit(exit_code, vcpu, KVM_ISA_SVM);
 
-	vcpu->arch.gpa_available = (exit_code == SVM_EXIT_NPF);
-
 	if (!is_cr_intercept(svm, INTERCEPT_CR0_WRITE))
 		vcpu->arch.cr0 = svm->vmcb->save.cr0;
 	if (npt_enabled)
@@ -4682,9 +4703,11 @@ static void enable_irq_window(struct kvm_vcpu *vcpu)
 	 * In case GIF=0 we can't rely on the CPU to tell us when GIF becomes
 	 * 1, because that's a separate STGI/VMRUN intercept.  The next time we
 	 * get that intercept, this function will be called again though and
-	 * we'll get the vintr intercept.
+	 * we'll get the vintr intercept. However, if the vGIF feature is
+	 * enabled, the STGI interception will not occur. Enable the irq
+	 * window under the assumption that the hardware will set the GIF.
 	 */
-	if (gif_set(svm) && nested_svm_intr(svm)) {
+	if ((vgif_enabled(svm) || gif_set(svm)) && nested_svm_intr(svm)) {
 		svm_set_vintr(svm);
 		svm_inject_irq(svm, 0x0);
 	}
@@ -4698,8 +4721,11 @@ static void enable_nmi_window(struct kvm_vcpu *vcpu)
 	    == HF_NMI_MASK)
 		return; /* IRET will cause a vm exit */
 
-	if ((svm->vcpu.arch.hflags & HF_GIF_MASK) == 0)
+	if (!gif_set(svm)) {
+		if (vgif_enabled(svm))
+			set_intercept(svm, INTERCEPT_STGI);
 		return; /* STGI will cause a vm exit */
+	}
 
 	if (svm->nested.exit_required)
 		return; /* we're not going to run the guest yet */
@@ -5071,17 +5097,14 @@ static u64 svm_get_mt_mask(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio)
 static void svm_cpuid_update(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
-	struct kvm_cpuid_entry2 *entry;
 
 	/* Update nrips enabled cache */
-	svm->nrips_enabled = !!guest_cpuid_has_nrips(&svm->vcpu);
+	svm->nrips_enabled = !!guest_cpuid_has(&svm->vcpu, X86_FEATURE_NRIPS);
 
 	if (!kvm_vcpu_apicv_active(vcpu))
 		return;
 
-	entry = kvm_find_cpuid_entry(vcpu, 1, 0);
-	if (entry)
-		entry->ecx &= ~bit(X86_FEATURE_X2APIC);
+	guest_cpuid_clear(vcpu, X86_FEATURE_X2APIC);
 }
 
 static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry)
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 0a6cc6754ec5..8a202c49e2a0 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -151,8 +151,8 @@ TRACE_EVENT(kvm_fast_mmio,
  */
 TRACE_EVENT(kvm_cpuid,
 	TP_PROTO(unsigned int function, unsigned long rax, unsigned long rbx,
-		 unsigned long rcx, unsigned long rdx),
-	TP_ARGS(function, rax, rbx, rcx, rdx),
+		 unsigned long rcx, unsigned long rdx, bool found),
+	TP_ARGS(function, rax, rbx, rcx, rdx, found),
 
 	TP_STRUCT__entry(
 		__field(	unsigned int,	function	)
@@ -160,6 +160,7 @@ TRACE_EVENT(kvm_cpuid,
 		__field(	unsigned long,	rbx		)
 		__field(	unsigned long,	rcx		)
 		__field(	unsigned long,	rdx		)
+		__field(	bool,		found		)
 	),
 
 	TP_fast_assign(
@@ -168,11 +169,13 @@ TRACE_EVENT(kvm_cpuid,
 		__entry->rbx		= rbx;
 		__entry->rcx		= rcx;
 		__entry->rdx		= rdx;
+		__entry->found		= found;
 	),
 
-	TP_printk("func %x rax %lx rbx %lx rcx %lx rdx %lx",
+	TP_printk("func %x rax %lx rbx %lx rcx %lx rdx %lx, cpuid entry %s",
 		  __entry->function, __entry->rax,
-		  __entry->rbx, __entry->rcx, __entry->rdx)
+		  __entry->rbx, __entry->rcx, __entry->rdx,
+		  __entry->found ? "found" : "not found")
 );
 
 #define AREG(x) { APIC_##x, "APIC_" #x }
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 70b90c0810d0..4253adef9044 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -122,7 +122,7 @@ module_param_named(preemption_timer, enable_preemption_timer, bool, S_IRUGO);
 	(KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST | X86_CR0_PG | X86_CR0_PE)
 #define KVM_CR4_GUEST_OWNED_BITS				      \
 	(X86_CR4_PVI | X86_CR4_DE | X86_CR4_PCE | X86_CR4_OSFXSR      \
-	 | X86_CR4_OSXMMEXCPT | X86_CR4_TSD)
+	 | X86_CR4_OSXMMEXCPT | X86_CR4_LA57 | X86_CR4_TSD)
 
 #define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
 #define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
@@ -243,11 +243,13 @@ struct __packed vmcs12 {
 	u64 virtual_apic_page_addr;
 	u64 apic_access_addr;
 	u64 posted_intr_desc_addr;
+	u64 vm_function_control;
 	u64 ept_pointer;
 	u64 eoi_exit_bitmap0;
 	u64 eoi_exit_bitmap1;
 	u64 eoi_exit_bitmap2;
 	u64 eoi_exit_bitmap3;
+	u64 eptp_list_address;
 	u64 xss_exit_bitmap;
 	u64 guest_physical_address;
 	u64 vmcs_link_pointer;
@@ -481,6 +483,7 @@ struct nested_vmx {
 	u64 nested_vmx_cr4_fixed0;
 	u64 nested_vmx_cr4_fixed1;
 	u64 nested_vmx_vmcs_enum;
+	u64 nested_vmx_vmfunc_controls;
 };
 
 #define POSTED_INTR_ON  0
@@ -573,6 +576,8 @@ struct vcpu_vmx {
 #endif
 	u32 vm_entry_controls_shadow;
 	u32 vm_exit_controls_shadow;
+	u32 secondary_exec_control;
+
 	/*
 	 * loaded_vmcs points to the VMCS currently used in this vcpu. For a
 	 * non-nested (L1) guest, it always points to vmcs01. For a nested
@@ -761,11 +766,13 @@ static const unsigned short vmcs_field_to_offset_table[] = {
 	FIELD64(VIRTUAL_APIC_PAGE_ADDR, virtual_apic_page_addr),
 	FIELD64(APIC_ACCESS_ADDR, apic_access_addr),
 	FIELD64(POSTED_INTR_DESC_ADDR, posted_intr_desc_addr),
+	FIELD64(VM_FUNCTION_CONTROL, vm_function_control),
 	FIELD64(EPT_POINTER, ept_pointer),
 	FIELD64(EOI_EXIT_BITMAP0, eoi_exit_bitmap0),
 	FIELD64(EOI_EXIT_BITMAP1, eoi_exit_bitmap1),
 	FIELD64(EOI_EXIT_BITMAP2, eoi_exit_bitmap2),
 	FIELD64(EOI_EXIT_BITMAP3, eoi_exit_bitmap3),
+	FIELD64(EPTP_LIST_ADDRESS, eptp_list_address),
 	FIELD64(XSS_EXIT_BITMAP, xss_exit_bitmap),
 	FIELD64(GUEST_PHYSICAL_ADDRESS, guest_physical_address),
 	FIELD64(VMCS_LINK_POINTER, vmcs_link_pointer),
@@ -889,25 +896,6 @@ static inline struct vmcs12 *get_vmcs12(struct kvm_vcpu *vcpu)
 	return to_vmx(vcpu)->nested.cached_vmcs12;
 }
 
-static struct page *nested_get_page(struct kvm_vcpu *vcpu, gpa_t addr)
-{
-	struct page *page = kvm_vcpu_gfn_to_page(vcpu, addr >> PAGE_SHIFT);
-	if (is_error_page(page))
-		return NULL;
-
-	return page;
-}
-
-static void nested_release_page(struct page *page)
-{
-	kvm_release_page_dirty(page);
-}
-
-static void nested_release_page_clean(struct page *page)
-{
-	kvm_release_page_clean(page);
-}
-
 static bool nested_ept_ad_enabled(struct kvm_vcpu *vcpu);
 static unsigned long nested_ept_get_cr3(struct kvm_vcpu *vcpu);
 static u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa);
@@ -1212,6 +1200,16 @@ static inline bool cpu_has_vmx_ept_4levels(void)
 	return vmx_capability.ept & VMX_EPT_PAGE_WALK_4_BIT;
 }
 
+static inline bool cpu_has_vmx_ept_mt_wb(void)
+{
+	return vmx_capability.ept & VMX_EPTP_WB_BIT;
+}
+
+static inline bool cpu_has_vmx_ept_5levels(void)
+{
+	return vmx_capability.ept & VMX_EPT_PAGE_WALK_5_BIT;
+}
+
 static inline bool cpu_has_vmx_ept_ad_bits(void)
 {
 	return vmx_capability.ept & VMX_EPT_AD_BIT;
@@ -1317,6 +1315,12 @@ static inline bool cpu_has_vmx_tsc_scaling(void)
 		SECONDARY_EXEC_TSC_SCALING;
 }
 
+static inline bool cpu_has_vmx_vmfunc(void)
+{
+	return vmcs_config.cpu_based_2nd_exec_ctrl &
+		SECONDARY_EXEC_ENABLE_VMFUNC;
+}
+
 static inline bool report_flexpriority(void)
 {
 	return flexpriority_enabled;
@@ -1357,8 +1361,7 @@ static inline int nested_cpu_has_ept(struct vmcs12 *vmcs12)
 
 static inline bool nested_cpu_has_xsaves(struct vmcs12 *vmcs12)
 {
-	return nested_cpu_has2(vmcs12, SECONDARY_EXEC_XSAVES) &&
-		vmx_xsaves_supported();
+	return nested_cpu_has2(vmcs12, SECONDARY_EXEC_XSAVES);
 }
 
 static inline bool nested_cpu_has_pml(struct vmcs12 *vmcs12)
@@ -1391,6 +1394,18 @@ static inline bool nested_cpu_has_posted_intr(struct vmcs12 *vmcs12)
 	return vmcs12->pin_based_vm_exec_control & PIN_BASED_POSTED_INTR;
 }
 
+static inline bool nested_cpu_has_vmfunc(struct vmcs12 *vmcs12)
+{
+	return nested_cpu_has2(vmcs12, SECONDARY_EXEC_ENABLE_VMFUNC);
+}
+
+static inline bool nested_cpu_has_eptp_switching(struct vmcs12 *vmcs12)
+{
+	return nested_cpu_has_vmfunc(vmcs12) &&
+		(vmcs12->vm_function_control &
+		 VMX_VMFUNC_EPTP_SWITCHING);
+}
+
 static inline bool is_nmi(u32 intr_info)
 {
 	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK))
@@ -2450,15 +2465,14 @@ static void nested_vmx_inject_exception_vmexit(struct kvm_vcpu *vcpu,
  * KVM wants to inject page-faults which it got to the guest. This function
  * checks whether in a nested guest, we need to inject them to L1 or L2.
  */
-static int nested_vmx_check_exception(struct kvm_vcpu *vcpu)
+static int nested_vmx_check_exception(struct kvm_vcpu *vcpu, unsigned long *exit_qual)
 {
 	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
 	unsigned int nr = vcpu->arch.exception.nr;
 
 	if (nr == PF_VECTOR) {
 		if (vcpu->arch.exception.nested_apf) {
-			nested_vmx_inject_exception_vmexit(vcpu,
-							   vcpu->arch.apf.nested_apf_token);
+			*exit_qual = vcpu->arch.apf.nested_apf_token;
 			return 1;
 		}
 		/*
@@ -2472,16 +2486,15 @@ static int nested_vmx_check_exception(struct kvm_vcpu *vcpu)
 		 */
 		if (nested_vmx_is_page_fault_vmexit(vmcs12,
 						    vcpu->arch.exception.error_code)) {
-			nested_vmx_inject_exception_vmexit(vcpu, vcpu->arch.cr2);
+			*exit_qual = vcpu->arch.cr2;
 			return 1;
 		}
 	} else {
-		unsigned long exit_qual = 0;
-		if (nr == DB_VECTOR)
-			exit_qual = vcpu->arch.dr6;
-
 		if (vmcs12->exception_bitmap & (1u << nr)) {
-			nested_vmx_inject_exception_vmexit(vcpu, exit_qual);
+			if (nr == DB_VECTOR)
+				*exit_qual = vcpu->arch.dr6;
+			else
+				*exit_qual = 0;
 			return 1;
 		}
 	}
@@ -2494,14 +2507,9 @@ static void vmx_queue_exception(struct kvm_vcpu *vcpu)
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	unsigned nr = vcpu->arch.exception.nr;
 	bool has_error_code = vcpu->arch.exception.has_error_code;
-	bool reinject = vcpu->arch.exception.reinject;
 	u32 error_code = vcpu->arch.exception.error_code;
 	u32 intr_info = nr | INTR_INFO_VALID_MASK;
 
-	if (!reinject && is_guest_mode(vcpu) &&
-	    nested_vmx_check_exception(vcpu))
-		return;
-
 	if (has_error_code) {
 		vmcs_write32(VM_ENTRY_EXCEPTION_ERROR_CODE, error_code);
 		intr_info |= INTR_INFO_DELIVER_CODE_MASK;
@@ -2600,7 +2608,7 @@ static void setup_msrs(struct vcpu_vmx *vmx)
 		if (index >= 0)
 			move_msr_up(vmx, index, save_nmsrs++);
 		index = __find_msr_index(vmx, MSR_TSC_AUX);
-		if (index >= 0 && guest_cpuid_has_rdtscp(&vmx->vcpu))
+		if (index >= 0 && guest_cpuid_has(&vmx->vcpu, X86_FEATURE_RDTSCP))
 			move_msr_up(vmx, index, save_nmsrs++);
 		/*
 		 * MSR_STAR is only needed on long mode guests, and only
@@ -2660,12 +2668,6 @@ static void vmx_write_tsc_offset(struct kvm_vcpu *vcpu, u64 offset)
 	}
 }
 
-static bool guest_cpuid_has_vmx(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best = kvm_find_cpuid_entry(vcpu, 1, 0);
-	return best && (best->ecx & (1 << (X86_FEATURE_VMX & 31)));
-}
-
 /*
  * nested_vmx_allowed() checks whether a guest should be allowed to use VMX
  * instructions and MSRs (i.e., nested VMX). Nested VMX is disabled for
@@ -2674,7 +2676,7 @@ static bool guest_cpuid_has_vmx(struct kvm_vcpu *vcpu)
  */
 static inline bool nested_vmx_allowed(struct kvm_vcpu *vcpu)
 {
-	return nested && guest_cpuid_has_vmx(vcpu);
+	return nested && guest_cpuid_has(vcpu, X86_FEATURE_VMX);
 }
 
 /*
@@ -2797,21 +2799,21 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 	vmx->nested.nested_vmx_procbased_ctls_low &=
 		~(CPU_BASED_CR3_LOAD_EXITING | CPU_BASED_CR3_STORE_EXITING);
 
-	/* secondary cpu-based controls */
+	/*
+	 * secondary cpu-based controls.  Do not include those that
+	 * depend on CPUID bits, they are added later by vmx_cpuid_update.
+	 */
 	rdmsr(MSR_IA32_VMX_PROCBASED_CTLS2,
 		vmx->nested.nested_vmx_secondary_ctls_low,
 		vmx->nested.nested_vmx_secondary_ctls_high);
 	vmx->nested.nested_vmx_secondary_ctls_low = 0;
 	vmx->nested.nested_vmx_secondary_ctls_high &=
-		SECONDARY_EXEC_RDRAND | SECONDARY_EXEC_RDSEED |
 		SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
-		SECONDARY_EXEC_RDTSCP |
 		SECONDARY_EXEC_DESC |
 		SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE |
 		SECONDARY_EXEC_APIC_REGISTER_VIRT |
 		SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY |
-		SECONDARY_EXEC_WBINVD_EXITING |
-		SECONDARY_EXEC_XSAVES;
+		SECONDARY_EXEC_WBINVD_EXITING;
 
 	if (enable_ept) {
 		/* nested EPT: emulate EPT also to L1 */
@@ -2834,6 +2836,17 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 	} else
 		vmx->nested.nested_vmx_ept_caps = 0;
 
+	if (cpu_has_vmx_vmfunc()) {
+		vmx->nested.nested_vmx_secondary_ctls_high |=
+			SECONDARY_EXEC_ENABLE_VMFUNC;
+		/*
+		 * Advertise EPTP switching unconditionally
+		 * since we emulate it
+		 */
+		vmx->nested.nested_vmx_vmfunc_controls =
+			VMX_VMFUNC_EPTP_SWITCHING;
+	}
+
 	/*
 	 * Old versions of KVM use the single-context version without
 	 * checking for support, so declare that it is supported even
@@ -3203,6 +3216,9 @@ static int vmx_get_vmx_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
 		*pdata = vmx->nested.nested_vmx_ept_caps |
 			((u64)vmx->nested.nested_vmx_vpid_caps << 32);
 		break;
+	case MSR_IA32_VMX_VMFUNC:
+		*pdata = vmx->nested.nested_vmx_vmfunc_controls;
+		break;
 	default:
 		return 1;
 	}
@@ -3256,7 +3272,8 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		break;
 	case MSR_IA32_BNDCFGS:
 		if (!kvm_mpx_supported() ||
-		    (!msr_info->host_initiated && !guest_cpuid_has_mpx(vcpu)))
+		    (!msr_info->host_initiated &&
+		     !guest_cpuid_has(vcpu, X86_FEATURE_MPX)))
 			return 1;
 		msr_info->data = vmcs_read64(GUEST_BNDCFGS);
 		break;
@@ -3280,7 +3297,8 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		msr_info->data = vcpu->arch.ia32_xss;
 		break;
 	case MSR_TSC_AUX:
-		if (!guest_cpuid_has_rdtscp(vcpu) && !msr_info->host_initiated)
+		if (!msr_info->host_initiated &&
+		    !guest_cpuid_has(vcpu, X86_FEATURE_RDTSCP))
 			return 1;
 		/* Otherwise falls through */
 	default:
@@ -3339,9 +3357,10 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		break;
 	case MSR_IA32_BNDCFGS:
 		if (!kvm_mpx_supported() ||
-		    (!msr_info->host_initiated && !guest_cpuid_has_mpx(vcpu)))
+		    (!msr_info->host_initiated &&
+		     !guest_cpuid_has(vcpu, X86_FEATURE_MPX)))
 			return 1;
-		if (is_noncanonical_address(data & PAGE_MASK) ||
+		if (is_noncanonical_address(data & PAGE_MASK, vcpu) ||
 		    (data & MSR_IA32_BNDCFGS_RSVD))
 			return 1;
 		vmcs_write64(GUEST_BNDCFGS, data);
@@ -3402,7 +3421,8 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 			clear_atomic_switch_msr(vmx, MSR_IA32_XSS);
 		break;
 	case MSR_TSC_AUX:
-		if (!guest_cpuid_has_rdtscp(vcpu) && !msr_info->host_initiated)
+		if (!msr_info->host_initiated &&
+		    !guest_cpuid_has(vcpu, X86_FEATURE_RDTSCP))
 			return 1;
 		/* Check reserved bit, higher 32 bits should be zero */
 		if ((data >> 32) != 0)
@@ -3639,8 +3659,11 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
 			SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY |
 			SECONDARY_EXEC_SHADOW_VMCS |
 			SECONDARY_EXEC_XSAVES |
+			SECONDARY_EXEC_RDSEED |
+			SECONDARY_EXEC_RDRAND |
 			SECONDARY_EXEC_ENABLE_PML |
-			SECONDARY_EXEC_TSC_SCALING;
+			SECONDARY_EXEC_TSC_SCALING |
+			SECONDARY_EXEC_ENABLE_VMFUNC;
 		if (adjust_vmx_controls(min2, opt2,
 					MSR_IA32_VMX_PROCBASED_CTLS2,
 					&_cpu_based_2nd_exec_control) < 0)
@@ -4272,16 +4295,22 @@ static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
 	vmx->emulation_required = emulation_required(vcpu);
 }
 
+static int get_ept_level(struct kvm_vcpu *vcpu)
+{
+	if (cpu_has_vmx_ept_5levels() && (cpuid_maxphyaddr(vcpu) > 48))
+		return 5;
+	return 4;
+}
+
 static u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa)
 {
-	u64 eptp;
+	u64 eptp = VMX_EPTP_MT_WB;
+
+	eptp |= (get_ept_level(vcpu) == 5) ? VMX_EPTP_PWL_5 : VMX_EPTP_PWL_4;
 
-	/* TODO write the value reading from MSR */
-	eptp = VMX_EPT_DEFAULT_MT |
-		VMX_EPT_DEFAULT_GAW << VMX_EPT_GAW_EPTP_SHIFT;
 	if (enable_ept_ad_bits &&
 	    (!is_guest_mode(vcpu) || nested_ept_ad_enabled(vcpu)))
-		eptp |= VMX_EPT_AD_ENABLE_BIT;
+		eptp |= VMX_EPTP_AD_ENABLE_BIT;
 	eptp |= (root_hpa & PAGE_MASK);
 
 	return eptp;
@@ -5243,10 +5272,24 @@ static u32 vmx_exec_control(struct vcpu_vmx *vmx)
 	return exec_control;
 }
 
-static u32 vmx_secondary_exec_control(struct vcpu_vmx *vmx)
+static bool vmx_rdrand_supported(void)
 {
+	return vmcs_config.cpu_based_2nd_exec_ctrl &
+		SECONDARY_EXEC_RDRAND;
+}
+
+static bool vmx_rdseed_supported(void)
+{
+	return vmcs_config.cpu_based_2nd_exec_ctrl &
+		SECONDARY_EXEC_RDSEED;
+}
+
+static void vmx_compute_secondary_exec_control(struct vcpu_vmx *vmx)
+{
+	struct kvm_vcpu *vcpu = &vmx->vcpu;
+
 	u32 exec_control = vmcs_config.cpu_based_2nd_exec_ctrl;
-	if (!cpu_need_virtualize_apic_accesses(&vmx->vcpu))
+	if (!cpu_need_virtualize_apic_accesses(vcpu))
 		exec_control &= ~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
 	if (vmx->vpid == 0)
 		exec_control &= ~SECONDARY_EXEC_ENABLE_VPID;
@@ -5260,7 +5303,7 @@ static u32 vmx_secondary_exec_control(struct vcpu_vmx *vmx)
 		exec_control &= ~SECONDARY_EXEC_UNRESTRICTED_GUEST;
 	if (!ple_gap)
 		exec_control &= ~SECONDARY_EXEC_PAUSE_LOOP_EXITING;
-	if (!kvm_vcpu_apicv_active(&vmx->vcpu))
+	if (!kvm_vcpu_apicv_active(vcpu))
 		exec_control &= ~(SECONDARY_EXEC_APIC_REGISTER_VIRT |
 				  SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY);
 	exec_control &= ~SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE;
@@ -5274,7 +5317,92 @@ static u32 vmx_secondary_exec_control(struct vcpu_vmx *vmx)
 	if (!enable_pml)
 		exec_control &= ~SECONDARY_EXEC_ENABLE_PML;
 
-	return exec_control;
+	if (vmx_xsaves_supported()) {
+		/* Exposing XSAVES only when XSAVE is exposed */
+		bool xsaves_enabled =
+			guest_cpuid_has(vcpu, X86_FEATURE_XSAVE) &&
+			guest_cpuid_has(vcpu, X86_FEATURE_XSAVES);
+
+		if (!xsaves_enabled)
+			exec_control &= ~SECONDARY_EXEC_XSAVES;
+
+		if (nested) {
+			if (xsaves_enabled)
+				vmx->nested.nested_vmx_secondary_ctls_high |=
+					SECONDARY_EXEC_XSAVES;
+			else
+				vmx->nested.nested_vmx_secondary_ctls_high &=
+					~SECONDARY_EXEC_XSAVES;
+		}
+	}
+
+	if (vmx_rdtscp_supported()) {
+		bool rdtscp_enabled = guest_cpuid_has(vcpu, X86_FEATURE_RDTSCP);
+		if (!rdtscp_enabled)
+			exec_control &= ~SECONDARY_EXEC_RDTSCP;
+
+		if (nested) {
+			if (rdtscp_enabled)
+				vmx->nested.nested_vmx_secondary_ctls_high |=
+					SECONDARY_EXEC_RDTSCP;
+			else
+				vmx->nested.nested_vmx_secondary_ctls_high &=
+					~SECONDARY_EXEC_RDTSCP;
+		}
+	}
+
+	if (vmx_invpcid_supported()) {
+		/* Exposing INVPCID only when PCID is exposed */
+		bool invpcid_enabled =
+			guest_cpuid_has(vcpu, X86_FEATURE_INVPCID) &&
+			guest_cpuid_has(vcpu, X86_FEATURE_PCID);
+
+		if (!invpcid_enabled) {
+			exec_control &= ~SECONDARY_EXEC_ENABLE_INVPCID;
+			guest_cpuid_clear(vcpu, X86_FEATURE_INVPCID);
+		}
+
+		if (nested) {
+			if (invpcid_enabled)
+				vmx->nested.nested_vmx_secondary_ctls_high |=
+					SECONDARY_EXEC_ENABLE_INVPCID;
+			else
+				vmx->nested.nested_vmx_secondary_ctls_high &=
+					~SECONDARY_EXEC_ENABLE_INVPCID;
+		}
+	}
+
+	if (vmx_rdrand_supported()) {
+		bool rdrand_enabled = guest_cpuid_has(vcpu, X86_FEATURE_RDRAND);
+		if (rdrand_enabled)
+			exec_control &= ~SECONDARY_EXEC_RDRAND;
+
+		if (nested) {
+			if (rdrand_enabled)
+				vmx->nested.nested_vmx_secondary_ctls_high |=
+					SECONDARY_EXEC_RDRAND;
+			else
+				vmx->nested.nested_vmx_secondary_ctls_high &=
+					~SECONDARY_EXEC_RDRAND;
+		}
+	}
+
+	if (vmx_rdseed_supported()) {
+		bool rdseed_enabled = guest_cpuid_has(vcpu, X86_FEATURE_RDSEED);
+		if (rdseed_enabled)
+			exec_control &= ~SECONDARY_EXEC_RDSEED;
+
+		if (nested) {
+			if (rdseed_enabled)
+				vmx->nested.nested_vmx_secondary_ctls_high |=
+					SECONDARY_EXEC_RDSEED;
+			else
+				vmx->nested.nested_vmx_secondary_ctls_high &=
+					~SECONDARY_EXEC_RDSEED;
+		}
+	}
+
+	vmx->secondary_exec_control = exec_control;
 }
 
 static void ept_set_mmio_spte_mask(void)
@@ -5318,8 +5446,9 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
 	vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, vmx_exec_control(vmx));
 
 	if (cpu_has_secondary_exec_ctrls()) {
+		vmx_compute_secondary_exec_control(vmx);
 		vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
-				vmx_secondary_exec_control(vmx));
+			     vmx->secondary_exec_control);
 	}
 
 	if (kvm_vcpu_apicv_active(&vmx->vcpu)) {
@@ -5357,6 +5486,9 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
 	vmcs_writel(HOST_GS_BASE, 0); /* 22.2.4 */
 #endif
 
+	if (cpu_has_vmx_vmfunc())
+		vmcs_write64(VM_FUNCTION_CONTROL, 0);
+
 	vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0);
 	vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0);
 	vmcs_write64(VM_EXIT_MSR_LOAD_ADDR, __pa(vmx->msr_autoload.host));
@@ -5835,6 +5967,7 @@ static int handle_external_interrupt(struct kvm_vcpu *vcpu)
 static int handle_triple_fault(struct kvm_vcpu *vcpu)
 {
 	vcpu->run->exit_reason = KVM_EXIT_SHUTDOWN;
+	vcpu->mmio_needed = 0;
 	return 0;
 }
 
@@ -6330,7 +6463,7 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu)
 {
 	unsigned long exit_qualification;
 	gpa_t gpa;
-	u32 error_code;
+	u64 error_code;
 
 	exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
 
@@ -6362,9 +6495,10 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu)
 			EPT_VIOLATION_EXECUTABLE))
 		      ? PFERR_PRESENT_MASK : 0;
 
-	vcpu->arch.gpa_available = true;
-	vcpu->arch.exit_qualification = exit_qualification;
+	error_code |= (exit_qualification & 0x100) != 0 ?
+	       PFERR_GUEST_FINAL_MASK : PFERR_GUEST_PAGE_MASK;
 
+	vcpu->arch.exit_qualification = exit_qualification;
 	return kvm_mmu_page_fault(vcpu, gpa, error_code, NULL, 0);
 }
 
@@ -6373,23 +6507,20 @@ static int handle_ept_misconfig(struct kvm_vcpu *vcpu)
 	int ret;
 	gpa_t gpa;
 
+	/*
+	 * A nested guest cannot optimize MMIO vmexits, because we have an
+	 * nGPA here instead of the required GPA.
+	 */
 	gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS);
-	if (!kvm_io_bus_write(vcpu, KVM_FAST_MMIO_BUS, gpa, 0, NULL)) {
+	if (!is_guest_mode(vcpu) &&
+	    !kvm_io_bus_write(vcpu, KVM_FAST_MMIO_BUS, gpa, 0, NULL)) {
 		trace_kvm_fast_mmio(gpa);
 		return kvm_skip_emulated_instruction(vcpu);
 	}
 
-	ret = handle_mmio_page_fault(vcpu, gpa, true);
-	vcpu->arch.gpa_available = true;
-	if (likely(ret == RET_MMIO_PF_EMULATE))
-		return x86_emulate_instruction(vcpu, gpa, 0, NULL, 0) ==
-					      EMULATE_DONE;
-
-	if (unlikely(ret == RET_MMIO_PF_INVALID))
-		return kvm_mmu_page_fault(vcpu, gpa, 0, NULL, 0);
-
-	if (unlikely(ret == RET_MMIO_PF_RETRY))
-		return 1;
+	ret = kvm_mmu_page_fault(vcpu, gpa, PFERR_RSVD_MASK, NULL, 0);
+	if (ret >= 0)
+		return ret;
 
 	/* It is the real ept misconfig */
 	WARN_ON(1);
@@ -6611,7 +6742,8 @@ static __init int hardware_setup(void)
 		init_vmcs_shadow_fields();
 
 	if (!cpu_has_vmx_ept() ||
-	    !cpu_has_vmx_ept_4levels()) {
+	    !cpu_has_vmx_ept_4levels() ||
+	    !cpu_has_vmx_ept_mt_wb()) {
 		enable_ept = 0;
 		enable_unrestricted_guest = 0;
 		enable_ept_ad_bits = 0;
@@ -6754,7 +6886,13 @@ static int handle_pause(struct kvm_vcpu *vcpu)
 	if (ple_gap)
 		grow_ple_window(vcpu);
 
-	kvm_vcpu_on_spin(vcpu);
+	/*
+	 * Intel sdm vol3 ch-25.1.3 says: The "PAUSE-loop exiting"
+	 * VM-execution control is ignored if CPL > 0. OTOH, KVM
+	 * never set PAUSE_EXITING and just set PLE if supported,
+	 * so the vcpu must be CPL=0 if it gets a PAUSE exit.
+	 */
+	kvm_vcpu_on_spin(vcpu, true);
 	return kvm_skip_emulated_instruction(vcpu);
 }
 
@@ -6769,6 +6907,12 @@ static int handle_mwait(struct kvm_vcpu *vcpu)
 	return handle_nop(vcpu);
 }
 
+static int handle_invalid_op(struct kvm_vcpu *vcpu)
+{
+	kvm_queue_exception(vcpu, UD_VECTOR);
+	return 1;
+}
+
 static int handle_monitor_trap(struct kvm_vcpu *vcpu)
 {
 	return 1;
@@ -6985,7 +7129,7 @@ static int get_vmx_mem_address(struct kvm_vcpu *vcpu,
 		 * non-canonical form. This is the only check on the memory
 		 * destination for long mode!
 		 */
-		exn = is_noncanonical_address(*ret);
+		exn = is_noncanonical_address(*ret, vcpu);
 	} else if (is_protmode(vcpu)) {
 		/* Protected mode: apply checks for segment validity in the
 		 * following order:
@@ -7149,19 +7293,19 @@ static int handle_vmon(struct kvm_vcpu *vcpu)
 		return kvm_skip_emulated_instruction(vcpu);
 	}
 
-	page = nested_get_page(vcpu, vmptr);
-	if (page == NULL) {
+	page = kvm_vcpu_gpa_to_page(vcpu, vmptr);
+	if (is_error_page(page)) {
 		nested_vmx_failInvalid(vcpu);
 		return kvm_skip_emulated_instruction(vcpu);
 	}
 	if (*(u32 *)kmap(page) != VMCS12_REVISION) {
 		kunmap(page);
-		nested_release_page_clean(page);
+		kvm_release_page_clean(page);
 		nested_vmx_failInvalid(vcpu);
 		return kvm_skip_emulated_instruction(vcpu);
 	}
 	kunmap(page);
-	nested_release_page_clean(page);
+	kvm_release_page_clean(page);
 
 	vmx->nested.vmxon_ptr = vmptr;
 	ret = enter_vmx_operation(vcpu);
@@ -7242,16 +7386,16 @@ static void free_nested(struct vcpu_vmx *vmx)
 	kfree(vmx->nested.cached_vmcs12);
 	/* Unpin physical memory we referred to in current vmcs02 */
 	if (vmx->nested.apic_access_page) {
-		nested_release_page(vmx->nested.apic_access_page);
+		kvm_release_page_dirty(vmx->nested.apic_access_page);
 		vmx->nested.apic_access_page = NULL;
 	}
 	if (vmx->nested.virtual_apic_page) {
-		nested_release_page(vmx->nested.virtual_apic_page);
+		kvm_release_page_dirty(vmx->nested.virtual_apic_page);
 		vmx->nested.virtual_apic_page = NULL;
 	}
 	if (vmx->nested.pi_desc_page) {
 		kunmap(vmx->nested.pi_desc_page);
-		nested_release_page(vmx->nested.pi_desc_page);
+		kvm_release_page_dirty(vmx->nested.pi_desc_page);
 		vmx->nested.pi_desc_page = NULL;
 		vmx->nested.pi_desc = NULL;
 	}
@@ -7618,15 +7762,15 @@ static int handle_vmptrld(struct kvm_vcpu *vcpu)
 	if (vmx->nested.current_vmptr != vmptr) {
 		struct vmcs12 *new_vmcs12;
 		struct page *page;
-		page = nested_get_page(vcpu, vmptr);
-		if (page == NULL) {
+		page = kvm_vcpu_gpa_to_page(vcpu, vmptr);
+		if (is_error_page(page)) {
 			nested_vmx_failInvalid(vcpu);
 			return kvm_skip_emulated_instruction(vcpu);
 		}
 		new_vmcs12 = kmap(page);
 		if (new_vmcs12->revision_id != VMCS12_REVISION) {
 			kunmap(page);
-			nested_release_page_clean(page);
+			kvm_release_page_clean(page);
 			nested_vmx_failValid(vcpu,
 				VMXERR_VMPTRLD_INCORRECT_VMCS_REVISION_ID);
 			return kvm_skip_emulated_instruction(vcpu);
@@ -7639,7 +7783,7 @@ static int handle_vmptrld(struct kvm_vcpu *vcpu)
 		 */
 		memcpy(vmx->nested.cached_vmcs12, new_vmcs12, VMCS12_SIZE);
 		kunmap(page);
-		nested_release_page_clean(page);
+		kvm_release_page_clean(page);
 
 		set_current_vmptr(vmx, vmptr);
 	}
@@ -7790,7 +7934,7 @@ static int handle_invvpid(struct kvm_vcpu *vcpu)
 
 	switch (type) {
 	case VMX_VPID_EXTENT_INDIVIDUAL_ADDR:
-		if (is_noncanonical_address(operand.gla)) {
+		if (is_noncanonical_address(operand.gla, vcpu)) {
 			nested_vmx_failValid(vcpu,
 				VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
 			return kvm_skip_emulated_instruction(vcpu);
@@ -7847,6 +7991,124 @@ static int handle_preemption_timer(struct kvm_vcpu *vcpu)
 	return 1;
 }
 
+static bool valid_ept_address(struct kvm_vcpu *vcpu, u64 address)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	int maxphyaddr = cpuid_maxphyaddr(vcpu);
+
+	/* Check for memory type validity */
+	switch (address & VMX_EPTP_MT_MASK) {
+	case VMX_EPTP_MT_UC:
+		if (!(vmx->nested.nested_vmx_ept_caps & VMX_EPTP_UC_BIT))
+			return false;
+		break;
+	case VMX_EPTP_MT_WB:
+		if (!(vmx->nested.nested_vmx_ept_caps & VMX_EPTP_WB_BIT))
+			return false;
+		break;
+	default:
+		return false;
+	}
+
+	/* only 4 levels page-walk length are valid */
+	if ((address & VMX_EPTP_PWL_MASK) != VMX_EPTP_PWL_4)
+		return false;
+
+	/* Reserved bits should not be set */
+	if (address >> maxphyaddr || ((address >> 7) & 0x1f))
+		return false;
+
+	/* AD, if set, should be supported */
+	if (address & VMX_EPTP_AD_ENABLE_BIT) {
+		if (!(vmx->nested.nested_vmx_ept_caps & VMX_EPT_AD_BIT))
+			return false;
+	}
+
+	return true;
+}
+
+static int nested_vmx_eptp_switching(struct kvm_vcpu *vcpu,
+				     struct vmcs12 *vmcs12)
+{
+	u32 index = vcpu->arch.regs[VCPU_REGS_RCX];
+	u64 address;
+	bool accessed_dirty;
+	struct kvm_mmu *mmu = vcpu->arch.walk_mmu;
+
+	if (!nested_cpu_has_eptp_switching(vmcs12) ||
+	    !nested_cpu_has_ept(vmcs12))
+		return 1;
+
+	if (index >= VMFUNC_EPTP_ENTRIES)
+		return 1;
+
+
+	if (kvm_vcpu_read_guest_page(vcpu, vmcs12->eptp_list_address >> PAGE_SHIFT,
+				     &address, index * 8, 8))
+		return 1;
+
+	accessed_dirty = !!(address & VMX_EPTP_AD_ENABLE_BIT);
+
+	/*
+	 * If the (L2) guest does a vmfunc to the currently
+	 * active ept pointer, we don't have to do anything else
+	 */
+	if (vmcs12->ept_pointer != address) {
+		if (!valid_ept_address(vcpu, address))
+			return 1;
+
+		kvm_mmu_unload(vcpu);
+		mmu->ept_ad = accessed_dirty;
+		mmu->base_role.ad_disabled = !accessed_dirty;
+		vmcs12->ept_pointer = address;
+		/*
+		 * TODO: Check what's the correct approach in case
+		 * mmu reload fails. Currently, we just let the next
+		 * reload potentially fail
+		 */
+		kvm_mmu_reload(vcpu);
+	}
+
+	return 0;
+}
+
+static int handle_vmfunc(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	struct vmcs12 *vmcs12;
+	u32 function = vcpu->arch.regs[VCPU_REGS_RAX];
+
+	/*
+	 * VMFUNC is only supported for nested guests, but we always enable the
+	 * secondary control for simplicity; for non-nested mode, fake that we
+	 * didn't by injecting #UD.
+	 */
+	if (!is_guest_mode(vcpu)) {
+		kvm_queue_exception(vcpu, UD_VECTOR);
+		return 1;
+	}
+
+	vmcs12 = get_vmcs12(vcpu);
+	if ((vmcs12->vm_function_control & (1 << function)) == 0)
+		goto fail;
+
+	switch (function) {
+	case 0:
+		if (nested_vmx_eptp_switching(vcpu, vmcs12))
+			goto fail;
+		break;
+	default:
+		goto fail;
+	}
+	return kvm_skip_emulated_instruction(vcpu);
+
+fail:
+	nested_vmx_vmexit(vcpu, vmx->exit_reason,
+			  vmcs_read32(VM_EXIT_INTR_INFO),
+			  vmcs_readl(EXIT_QUALIFICATION));
+	return 1;
+}
+
 /*
  * The exit handlers return 1 if the exit was handled fully and guest execution
  * may resume.  Otherwise they set the kvm_run parameter to indicate what needs
@@ -7894,9 +8156,12 @@ static int (*const kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
 	[EXIT_REASON_MONITOR_INSTRUCTION]     = handle_monitor,
 	[EXIT_REASON_INVEPT]                  = handle_invept,
 	[EXIT_REASON_INVVPID]                 = handle_invvpid,
+	[EXIT_REASON_RDRAND]                  = handle_invalid_op,
+	[EXIT_REASON_RDSEED]                  = handle_invalid_op,
 	[EXIT_REASON_XSAVES]                  = handle_xsaves,
 	[EXIT_REASON_XRSTORS]                 = handle_xrstors,
 	[EXIT_REASON_PML_FULL]		      = handle_pml_full,
+	[EXIT_REASON_VMFUNC]                  = handle_vmfunc,
 	[EXIT_REASON_PREEMPTION_TIMER]	      = handle_preemption_timer,
 };
 
@@ -8212,6 +8477,10 @@ static bool nested_vmx_exit_reflected(struct kvm_vcpu *vcpu, u32 exit_reason)
 		 * table is L0's fault.
 		 */
 		return false;
+	case EXIT_REASON_INVPCID:
+		return
+			nested_cpu_has2(vmcs12, SECONDARY_EXEC_ENABLE_INVPCID) &&
+			nested_cpu_has(vmcs12, CPU_BASED_INVLPG_EXITING);
 	case EXIT_REASON_WBINVD:
 		return nested_cpu_has2(vmcs12, SECONDARY_EXEC_WBINVD_EXITING);
 	case EXIT_REASON_XSETBV:
@@ -8229,6 +8498,9 @@ static bool nested_vmx_exit_reflected(struct kvm_vcpu *vcpu, u32 exit_reason)
 	case EXIT_REASON_PML_FULL:
 		/* We emulate PML support to L1. */
 		return false;
+	case EXIT_REASON_VMFUNC:
+		/* VM functions are emulated through L2->L0 vmexits. */
+		return false;
 	default:
 		return true;
 	}
@@ -8487,7 +8759,6 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
 	u32 vectoring_info = vmx->idt_vectoring_info;
 
 	trace_kvm_exit(exit_reason, vcpu, KVM_ISA_VMX);
-	vcpu->arch.gpa_available = false;
 
 	/*
 	 * Flush logged GPAs PML buffer, this will make dirty_bitmap more
@@ -9341,11 +9612,6 @@ static void __init vmx_check_processor_compat(void *rtn)
 	}
 }
 
-static int get_ept_level(void)
-{
-	return VMX_EPT_DEFAULT_GAW + 1;
-}
-
 static u64 vmx_get_mt_mask(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio)
 {
 	u8 cache;
@@ -9462,39 +9728,13 @@ static void nested_vmx_cr_fixed1_bits_update(struct kvm_vcpu *vcpu)
 
 static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
 {
-	struct kvm_cpuid_entry2 *best;
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	u32 secondary_exec_ctl = vmx_secondary_exec_control(vmx);
 
-	if (vmx_rdtscp_supported()) {
-		bool rdtscp_enabled = guest_cpuid_has_rdtscp(vcpu);
-		if (!rdtscp_enabled)
-			secondary_exec_ctl &= ~SECONDARY_EXEC_RDTSCP;
-
-		if (nested) {
-			if (rdtscp_enabled)
-				vmx->nested.nested_vmx_secondary_ctls_high |=
-					SECONDARY_EXEC_RDTSCP;
-			else
-				vmx->nested.nested_vmx_secondary_ctls_high &=
-					~SECONDARY_EXEC_RDTSCP;
-		}
-	}
-
-	/* Exposing INVPCID only when PCID is exposed */
-	best = kvm_find_cpuid_entry(vcpu, 0x7, 0);
-	if (vmx_invpcid_supported() &&
-	    (!best || !(best->ebx & bit(X86_FEATURE_INVPCID)) ||
-	    !guest_cpuid_has_pcid(vcpu))) {
-		secondary_exec_ctl &= ~SECONDARY_EXEC_ENABLE_INVPCID;
-
-		if (best)
-			best->ebx &= ~bit(X86_FEATURE_INVPCID);
+	if (cpu_has_secondary_exec_ctrls()) {
+		vmx_compute_secondary_exec_control(vmx);
+		vmcs_set_secondary_exec_control(vmx->secondary_exec_control);
 	}
 
-	if (cpu_has_secondary_exec_ctrls())
-		vmcs_set_secondary_exec_control(secondary_exec_ctl);
-
 	if (nested_vmx_allowed(vcpu))
 		to_vmx(vcpu)->msr_ia32_feature_control_valid_bits |=
 			FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX;
@@ -9535,7 +9775,7 @@ static void nested_ept_inject_page_fault(struct kvm_vcpu *vcpu,
 
 static bool nested_ept_ad_enabled(struct kvm_vcpu *vcpu)
 {
-	return nested_ept_get_cr3(vcpu) & VMX_EPT_AD_ENABLE_BIT;
+	return nested_ept_get_cr3(vcpu) & VMX_EPTP_AD_ENABLE_BIT;
 }
 
 /* Callbacks for nested_ept_init_mmu_context: */
@@ -9548,18 +9788,15 @@ static unsigned long nested_ept_get_cr3(struct kvm_vcpu *vcpu)
 
 static int nested_ept_init_mmu_context(struct kvm_vcpu *vcpu)
 {
-	bool wants_ad;
-
 	WARN_ON(mmu_is_nested(vcpu));
-	wants_ad = nested_ept_ad_enabled(vcpu);
-	if (wants_ad && !enable_ept_ad_bits)
+	if (!valid_ept_address(vcpu, nested_ept_get_cr3(vcpu)))
 		return 1;
 
 	kvm_mmu_unload(vcpu);
 	kvm_init_shadow_ept_mmu(vcpu,
 			to_vmx(vcpu)->nested.nested_vmx_ept_caps &
 			VMX_EPT_EXECUTE_ONLY_BIT,
-			wants_ad);
+			nested_ept_ad_enabled(vcpu));
 	vcpu->arch.mmu.set_cr3           = vmx_set_cr3;
 	vcpu->arch.mmu.get_cr3           = nested_ept_get_cr3;
 	vcpu->arch.mmu.inject_page_fault = nested_ept_inject_page_fault;
@@ -9610,6 +9847,7 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
 					struct vmcs12 *vmcs12)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	struct page *page;
 	u64 hpa;
 
 	if (nested_cpu_has2(vmcs12, SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES)) {
@@ -9619,17 +9857,19 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
 		 * physical address remains valid. We keep a reference
 		 * to it so we can release it later.
 		 */
-		if (vmx->nested.apic_access_page) /* shouldn't happen */
-			nested_release_page(vmx->nested.apic_access_page);
-		vmx->nested.apic_access_page =
-			nested_get_page(vcpu, vmcs12->apic_access_addr);
+		if (vmx->nested.apic_access_page) { /* shouldn't happen */
+			kvm_release_page_dirty(vmx->nested.apic_access_page);
+			vmx->nested.apic_access_page = NULL;
+		}
+		page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->apic_access_addr);
 		/*
 		 * If translation failed, no matter: This feature asks
 		 * to exit when accessing the given address, and if it
 		 * can never be accessed, this feature won't do
 		 * anything anyway.
 		 */
-		if (vmx->nested.apic_access_page) {
+		if (!is_error_page(page)) {
+			vmx->nested.apic_access_page = page;
 			hpa = page_to_phys(vmx->nested.apic_access_page);
 			vmcs_write64(APIC_ACCESS_ADDR, hpa);
 		} else {
@@ -9644,10 +9884,11 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
 	}
 
 	if (nested_cpu_has(vmcs12, CPU_BASED_TPR_SHADOW)) {
-		if (vmx->nested.virtual_apic_page) /* shouldn't happen */
-			nested_release_page(vmx->nested.virtual_apic_page);
-		vmx->nested.virtual_apic_page =
-			nested_get_page(vcpu, vmcs12->virtual_apic_page_addr);
+		if (vmx->nested.virtual_apic_page) { /* shouldn't happen */
+			kvm_release_page_dirty(vmx->nested.virtual_apic_page);
+			vmx->nested.virtual_apic_page = NULL;
+		}
+		page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->virtual_apic_page_addr);
 
 		/*
 		 * If translation failed, VM entry will fail because
@@ -9662,7 +9903,8 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
 		 * control.  But such a configuration is useless, so
 		 * let's keep the code simple.
 		 */
-		if (vmx->nested.virtual_apic_page) {
+		if (!is_error_page(page)) {
+			vmx->nested.virtual_apic_page = page;
 			hpa = page_to_phys(vmx->nested.virtual_apic_page);
 			vmcs_write64(VIRTUAL_APIC_PAGE_ADDR, hpa);
 		}
@@ -9671,16 +9913,14 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
 	if (nested_cpu_has_posted_intr(vmcs12)) {
 		if (vmx->nested.pi_desc_page) { /* shouldn't happen */
 			kunmap(vmx->nested.pi_desc_page);
-			nested_release_page(vmx->nested.pi_desc_page);
+			kvm_release_page_dirty(vmx->nested.pi_desc_page);
+			vmx->nested.pi_desc_page = NULL;
 		}
-		vmx->nested.pi_desc_page =
-			nested_get_page(vcpu, vmcs12->posted_intr_desc_addr);
-		vmx->nested.pi_desc =
-			(struct pi_desc *)kmap(vmx->nested.pi_desc_page);
-		if (!vmx->nested.pi_desc) {
-			nested_release_page_clean(vmx->nested.pi_desc_page);
+		page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->posted_intr_desc_addr);
+		if (is_error_page(page))
 			return;
-		}
+		vmx->nested.pi_desc_page = page;
+		vmx->nested.pi_desc = kmap(vmx->nested.pi_desc_page);
 		vmx->nested.pi_desc =
 			(struct pi_desc *)((void *)vmx->nested.pi_desc +
 			(unsigned long)(vmcs12->posted_intr_desc_addr &
@@ -9746,6 +9986,18 @@ static int nested_vmx_check_msr_bitmap_controls(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
+static int nested_vmx_check_tpr_shadow_controls(struct kvm_vcpu *vcpu,
+						struct vmcs12 *vmcs12)
+{
+	if (!nested_cpu_has(vmcs12, CPU_BASED_TPR_SHADOW))
+		return 0;
+
+	if (!page_address_valid(vcpu, vmcs12->virtual_apic_page_addr))
+		return -EINVAL;
+
+	return 0;
+}
+
 /*
  * Merge L0's and L1's MSR bitmap, return false to indicate that
  * we do not use the hardware.
@@ -9762,8 +10014,8 @@ static inline bool nested_vmx_merge_msr_bitmap(struct kvm_vcpu *vcpu,
 	if (!nested_cpu_has_virt_x2apic_mode(vmcs12))
 		return false;
 
-	page = nested_get_page(vcpu, vmcs12->msr_bitmap);
-	if (!page)
+	page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->msr_bitmap);
+	if (is_error_page(page))
 		return false;
 	msr_bitmap_l1 = (unsigned long *)kmap(page);
 
@@ -9793,7 +10045,7 @@ static inline bool nested_vmx_merge_msr_bitmap(struct kvm_vcpu *vcpu,
 		}
 	}
 	kunmap(page);
-	nested_release_page_clean(page);
+	kvm_release_page_clean(page);
 
 	return true;
 }
@@ -10187,13 +10439,16 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
 		enable_ept ? vmcs12->page_fault_error_code_match : 0);
 
 	if (cpu_has_secondary_exec_ctrls()) {
-		exec_control = vmx_secondary_exec_control(vmx);
+		exec_control = vmx->secondary_exec_control;
 
 		/* Take the following fields only from vmcs12 */
 		exec_control &= ~(SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
+				  SECONDARY_EXEC_ENABLE_INVPCID |
 				  SECONDARY_EXEC_RDTSCP |
+				  SECONDARY_EXEC_XSAVES |
 				  SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY |
-				  SECONDARY_EXEC_APIC_REGISTER_VIRT);
+				  SECONDARY_EXEC_APIC_REGISTER_VIRT |
+				  SECONDARY_EXEC_ENABLE_VMFUNC);
 		if (nested_cpu_has(vmcs12,
 				   CPU_BASED_ACTIVATE_SECONDARY_CONTROLS)) {
 			vmcs12_exec_ctrl = vmcs12->secondary_vm_exec_control &
@@ -10201,6 +10456,10 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
 			exec_control |= vmcs12_exec_ctrl;
 		}
 
+		/* All VMFUNCs are currently emulated through L0 vmexits.  */
+		if (exec_control & SECONDARY_EXEC_ENABLE_VMFUNC)
+			vmcs_write64(VM_FUNCTION_CONTROL, 0);
+
 		if (exec_control & SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY) {
 			vmcs_write64(EOI_EXIT_BITMAP0,
 				vmcs12->eoi_exit_bitmap0);
@@ -10426,6 +10685,9 @@ static int check_vmentry_prereqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 	if (nested_vmx_check_msr_bitmap_controls(vcpu, vmcs12))
 		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
 
+	if (nested_vmx_check_tpr_shadow_controls(vcpu, vmcs12))
+		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+
 	if (nested_vmx_check_apicv_controls(vcpu, vmcs12))
 		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
 
@@ -10453,6 +10715,18 @@ static int check_vmentry_prereqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 				vmx->nested.nested_vmx_entry_ctls_high))
 		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
 
+	if (nested_cpu_has_vmfunc(vmcs12)) {
+		if (vmcs12->vm_function_control &
+		    ~vmx->nested.nested_vmx_vmfunc_controls)
+			return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+
+		if (nested_cpu_has_eptp_switching(vmcs12)) {
+			if (!nested_cpu_has_ept(vmcs12) ||
+			    !page_address_valid(vcpu, vmcs12->eptp_list_address))
+				return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+		}
+	}
+
 	if (vmcs12->cr3_target_count > nested_cpu_vmx_misc_cr3_count(vcpu))
 		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
 
@@ -10699,7 +10973,7 @@ static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu,
 	u32 idt_vectoring;
 	unsigned int nr;
 
-	if (vcpu->arch.exception.pending && vcpu->arch.exception.reinject) {
+	if (vcpu->arch.exception.injected) {
 		nr = vcpu->arch.exception.nr;
 		idt_vectoring = nr | VECTORING_INFO_VALID_MASK;
 
@@ -10738,12 +11012,20 @@ static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu,
 static int vmx_check_nested_events(struct kvm_vcpu *vcpu, bool external_intr)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	unsigned long exit_qual;
 
-	if (vcpu->arch.exception.pending ||
-		vcpu->arch.nmi_injected ||
-		vcpu->arch.interrupt.pending)
+	if (kvm_event_needs_reinjection(vcpu))
 		return -EBUSY;
 
+	if (vcpu->arch.exception.pending &&
+		nested_vmx_check_exception(vcpu, &exit_qual)) {
+		if (vmx->nested.nested_run_pending)
+			return -EBUSY;
+		nested_vmx_inject_exception_vmexit(vcpu, exit_qual);
+		vcpu->arch.exception.pending = false;
+		return 0;
+	}
+
 	if (nested_cpu_has_preemption_timer(get_vmcs12(vcpu)) &&
 	    vmx->nested.preemption_timer_expired) {
 		if (vmx->nested.nested_run_pending)
@@ -11184,16 +11466,16 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
 
 	/* Unpin physical memory we referred to in vmcs02 */
 	if (vmx->nested.apic_access_page) {
-		nested_release_page(vmx->nested.apic_access_page);
+		kvm_release_page_dirty(vmx->nested.apic_access_page);
 		vmx->nested.apic_access_page = NULL;
 	}
 	if (vmx->nested.virtual_apic_page) {
-		nested_release_page(vmx->nested.virtual_apic_page);
+		kvm_release_page_dirty(vmx->nested.virtual_apic_page);
 		vmx->nested.virtual_apic_page = NULL;
 	}
 	if (vmx->nested.pi_desc_page) {
 		kunmap(vmx->nested.pi_desc_page);
-		nested_release_page(vmx->nested.pi_desc_page);
+		kvm_release_page_dirty(vmx->nested.pi_desc_page);
 		vmx->nested.pi_desc_page = NULL;
 		vmx->nested.pi_desc = NULL;
 	}
@@ -11369,14 +11651,14 @@ static int vmx_write_pml_buffer(struct kvm_vcpu *vcpu)
 
 		gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS) & ~0xFFFull;
 
-		page = nested_get_page(vcpu, vmcs12->pml_address);
-		if (!page)
+		page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->pml_address);
+		if (is_error_page(page))
 			return 0;
 
 		pml_address = kmap(page);
 		pml_address[vmcs12->guest_pml_index--] = gpa;
 		kunmap(page);
-		nested_release_page_clean(page);
+		kvm_release_page_clean(page);
 	}
 
 	return 0;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ef5102f80497..6069af86da3b 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -311,13 +311,13 @@ int kvm_set_apic_base(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		(MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE);
 	u64 new_state = msr_info->data &
 		(MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE);
-	u64 reserved_bits = ((~0ULL) << cpuid_maxphyaddr(vcpu)) |
-		0x2ff | (guest_cpuid_has_x2apic(vcpu) ? 0 : X2APIC_ENABLE);
+	u64 reserved_bits = ((~0ULL) << cpuid_maxphyaddr(vcpu)) | 0x2ff |
+		(guest_cpuid_has(vcpu, X86_FEATURE_X2APIC) ? 0 : X2APIC_ENABLE);
 
+	if ((msr_info->data & reserved_bits) || new_state == X2APIC_ENABLE)
+		return 1;
 	if (!msr_info->host_initiated &&
-	    ((msr_info->data & reserved_bits) != 0 ||
-	     new_state == X2APIC_ENABLE ||
-	     (new_state == MSR_IA32_APICBASE_ENABLE &&
+	    ((new_state == MSR_IA32_APICBASE_ENABLE &&
 	      old_state == (MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE)) ||
 	     (new_state == (MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE) &&
 	      old_state == 0)))
@@ -390,15 +390,28 @@ static void kvm_multiple_exception(struct kvm_vcpu *vcpu,
 
 	kvm_make_request(KVM_REQ_EVENT, vcpu);
 
-	if (!vcpu->arch.exception.pending) {
+	if (!vcpu->arch.exception.pending && !vcpu->arch.exception.injected) {
 	queue:
 		if (has_error && !is_protmode(vcpu))
 			has_error = false;
-		vcpu->arch.exception.pending = true;
+		if (reinject) {
+			/*
+			 * On vmentry, vcpu->arch.exception.pending is only
+			 * true if an event injection was blocked by
+			 * nested_run_pending.  In that case, however,
+			 * vcpu_enter_guest requests an immediate exit,
+			 * and the guest shouldn't proceed far enough to
+			 * need reinjection.
+			 */
+			WARN_ON_ONCE(vcpu->arch.exception.pending);
+			vcpu->arch.exception.injected = true;
+		} else {
+			vcpu->arch.exception.pending = true;
+			vcpu->arch.exception.injected = false;
+		}
 		vcpu->arch.exception.has_error_code = has_error;
 		vcpu->arch.exception.nr = nr;
 		vcpu->arch.exception.error_code = error_code;
-		vcpu->arch.exception.reinject = reinject;
 		return;
 	}
 
@@ -413,8 +426,13 @@ static void kvm_multiple_exception(struct kvm_vcpu *vcpu,
 	class2 = exception_class(nr);
 	if ((class1 == EXCPT_CONTRIBUTORY && class2 == EXCPT_CONTRIBUTORY)
 		|| (class1 == EXCPT_PF && class2 != EXCPT_BENIGN)) {
-		/* generate double fault per SDM Table 5-5 */
+		/*
+		 * Generate double fault per SDM Table 5-5.  Set
+		 * exception.pending = true so that the double fault
+		 * can trigger a nested vmexit.
+		 */
 		vcpu->arch.exception.pending = true;
+		vcpu->arch.exception.injected = false;
 		vcpu->arch.exception.has_error_code = true;
 		vcpu->arch.exception.nr = DF_VECTOR;
 		vcpu->arch.exception.error_code = 0;
@@ -755,19 +773,22 @@ int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 	if (cr4 & CR4_RESERVED_BITS)
 		return 1;
 
-	if (!guest_cpuid_has_xsave(vcpu) && (cr4 & X86_CR4_OSXSAVE))
+	if (!guest_cpuid_has(vcpu, X86_FEATURE_XSAVE) && (cr4 & X86_CR4_OSXSAVE))
+		return 1;
+
+	if (!guest_cpuid_has(vcpu, X86_FEATURE_SMEP) && (cr4 & X86_CR4_SMEP))
 		return 1;
 
-	if (!guest_cpuid_has_smep(vcpu) && (cr4 & X86_CR4_SMEP))
+	if (!guest_cpuid_has(vcpu, X86_FEATURE_SMAP) && (cr4 & X86_CR4_SMAP))
 		return 1;
 
-	if (!guest_cpuid_has_smap(vcpu) && (cr4 & X86_CR4_SMAP))
+	if (!guest_cpuid_has(vcpu, X86_FEATURE_FSGSBASE) && (cr4 & X86_CR4_FSGSBASE))
 		return 1;
 
-	if (!guest_cpuid_has_fsgsbase(vcpu) && (cr4 & X86_CR4_FSGSBASE))
+	if (!guest_cpuid_has(vcpu, X86_FEATURE_PKU) && (cr4 & X86_CR4_PKE))
 		return 1;
 
-	if (!guest_cpuid_has_pku(vcpu) && (cr4 & X86_CR4_PKE))
+	if (!guest_cpuid_has(vcpu, X86_FEATURE_LA57) && (cr4 & X86_CR4_LA57))
 		return 1;
 
 	if (is_long_mode(vcpu)) {
@@ -780,7 +801,7 @@ int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 		return 1;
 
 	if ((cr4 & X86_CR4_PCIDE) && !(old_cr4 & X86_CR4_PCIDE)) {
-		if (!guest_cpuid_has_pcid(vcpu))
+		if (!guest_cpuid_has(vcpu, X86_FEATURE_PCID))
 			return 1;
 
 		/* PCID can not be enabled when cr3[11:0]!=000H or EFER.LMA=0 */
@@ -814,10 +835,10 @@ int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
 		return 0;
 	}
 
-	if (is_long_mode(vcpu)) {
-		if (cr3 & CR3_L_MODE_RESERVED_BITS)
-			return 1;
-	} else if (is_pae(vcpu) && is_paging(vcpu) &&
+	if (is_long_mode(vcpu) &&
+	    (cr3 & rsvd_bits(cpuid_maxphyaddr(vcpu), 62)))
+		return 1;
+	else if (is_pae(vcpu) && is_paging(vcpu) &&
 		   !load_pdptrs(vcpu, vcpu->arch.walk_mmu, cr3))
 		return 1;
 
@@ -884,7 +905,7 @@ static u64 kvm_dr6_fixed(struct kvm_vcpu *vcpu)
 {
 	u64 fixed = DR6_FIXED_1;
 
-	if (!guest_cpuid_has_rtm(vcpu))
+	if (!guest_cpuid_has(vcpu, X86_FEATURE_RTM))
 		fixed |= DR6_RTM;
 	return fixed;
 }
@@ -994,6 +1015,7 @@ static u32 emulated_msrs[] = {
 	MSR_KVM_SYSTEM_TIME_NEW, MSR_KVM_WALL_CLOCK_NEW,
 	HV_X64_MSR_GUEST_OS_ID, HV_X64_MSR_HYPERCALL,
 	HV_X64_MSR_TIME_REF_COUNT, HV_X64_MSR_REFERENCE_TSC,
+	HV_X64_MSR_TSC_FREQUENCY, HV_X64_MSR_APIC_FREQUENCY,
 	HV_X64_MSR_CRASH_P0, HV_X64_MSR_CRASH_P1, HV_X64_MSR_CRASH_P2,
 	HV_X64_MSR_CRASH_P3, HV_X64_MSR_CRASH_P4, HV_X64_MSR_CRASH_CTL,
 	HV_X64_MSR_RESET,
@@ -1022,21 +1044,11 @@ bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer)
 	if (efer & efer_reserved_bits)
 		return false;
 
-	if (efer & EFER_FFXSR) {
-		struct kvm_cpuid_entry2 *feat;
-
-		feat = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
-		if (!feat || !(feat->edx & bit(X86_FEATURE_FXSR_OPT)))
+	if (efer & EFER_FFXSR && !guest_cpuid_has(vcpu, X86_FEATURE_FXSR_OPT))
 			return false;
-	}
 
-	if (efer & EFER_SVME) {
-		struct kvm_cpuid_entry2 *feat;
-
-		feat = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
-		if (!feat || !(feat->ecx & bit(X86_FEATURE_SVM)))
+	if (efer & EFER_SVME && !guest_cpuid_has(vcpu, X86_FEATURE_SVM))
 			return false;
-	}
 
 	return true;
 }
@@ -1084,7 +1096,7 @@ int kvm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
 	case MSR_KERNEL_GS_BASE:
 	case MSR_CSTAR:
 	case MSR_LSTAR:
-		if (is_noncanonical_address(msr->data))
+		if (is_noncanonical_address(msr->data, vcpu))
 			return 1;
 		break;
 	case MSR_IA32_SYSENTER_EIP:
@@ -1101,7 +1113,7 @@ int kvm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
 		 * value, and that something deterministic happens if the guest
 		 * invokes 64-bit SYSENTER.
 		 */
-		msr->data = get_canonical(msr->data);
+		msr->data = get_canonical(msr->data, vcpu_virt_addr_bits(vcpu));
 	}
 	return kvm_x86_ops->set_msr(vcpu, msr);
 }
@@ -1534,8 +1546,9 @@ void kvm_write_tsc(struct kvm_vcpu *vcpu, struct msr_data *msr)
 	vcpu->arch.this_tsc_nsec = kvm->arch.cur_tsc_nsec;
 	vcpu->arch.this_tsc_write = kvm->arch.cur_tsc_write;
 
-	if (guest_cpuid_has_tsc_adjust(vcpu) && !msr->host_initiated)
+	if (!msr->host_initiated && guest_cpuid_has(vcpu, X86_FEATURE_TSC_ADJUST))
 		update_ia32_tsc_adjust_msr(vcpu, offset);
+
 	kvm_vcpu_write_tsc_offset(vcpu, offset);
 	raw_spin_unlock_irqrestore(&kvm->arch.tsc_write_lock, flags);
 
@@ -2185,7 +2198,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		kvm_set_lapic_tscdeadline_msr(vcpu, data);
 		break;
 	case MSR_IA32_TSC_ADJUST:
-		if (guest_cpuid_has_tsc_adjust(vcpu)) {
+		if (guest_cpuid_has(vcpu, X86_FEATURE_TSC_ADJUST)) {
 			if (!msr_info->host_initiated) {
 				s64 adj = data - vcpu->arch.ia32_tsc_adjust_msr;
 				adjust_tsc_offset_guest(vcpu, adj);
@@ -2307,12 +2320,12 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		vcpu_unimpl(vcpu, "ignored wrmsr: 0x%x data 0x%llx\n", msr, data);
 		break;
 	case MSR_AMD64_OSVW_ID_LENGTH:
-		if (!guest_cpuid_has_osvw(vcpu))
+		if (!guest_cpuid_has(vcpu, X86_FEATURE_OSVW))
 			return 1;
 		vcpu->arch.osvw.length = data;
 		break;
 	case MSR_AMD64_OSVW_STATUS:
-		if (!guest_cpuid_has_osvw(vcpu))
+		if (!guest_cpuid_has(vcpu, X86_FEATURE_OSVW))
 			return 1;
 		vcpu->arch.osvw.status = data;
 		break;
@@ -2537,12 +2550,12 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		msr_info->data = 0xbe702111;
 		break;
 	case MSR_AMD64_OSVW_ID_LENGTH:
-		if (!guest_cpuid_has_osvw(vcpu))
+		if (!guest_cpuid_has(vcpu, X86_FEATURE_OSVW))
 			return 1;
 		msr_info->data = vcpu->arch.osvw.length;
 		break;
 	case MSR_AMD64_OSVW_STATUS:
-		if (!guest_cpuid_has_osvw(vcpu))
+		if (!guest_cpuid_has(vcpu, X86_FEATURE_OSVW))
 			return 1;
 		msr_info->data = vcpu->arch.osvw.status;
 		break;
@@ -2882,6 +2895,10 @@ static void kvm_steal_time_set_preempted(struct kvm_vcpu *vcpu)
 void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 {
 	int idx;
+
+	if (vcpu->preempted)
+		vcpu->arch.preempted_in_kernel = !kvm_x86_ops->get_cpl(vcpu);
+
 	/*
 	 * Disable page faults because we're in atomic context here.
 	 * kvm_write_guest_offset_cached() would call might_fault()
@@ -3074,8 +3091,14 @@ static void kvm_vcpu_ioctl_x86_get_vcpu_events(struct kvm_vcpu *vcpu,
 					       struct kvm_vcpu_events *events)
 {
 	process_nmi(vcpu);
+	/*
+	 * FIXME: pass injected and pending separately.  This is only
+	 * needed for nested virtualization, whose state cannot be
+	 * migrated yet.  For now we can combine them.
+	 */
 	events->exception.injected =
-		vcpu->arch.exception.pending &&
+		(vcpu->arch.exception.pending ||
+		 vcpu->arch.exception.injected) &&
 		!kvm_exception_is_soft(vcpu->arch.exception.nr);
 	events->exception.nr = vcpu->arch.exception.nr;
 	events->exception.has_error_code = vcpu->arch.exception.has_error_code;
@@ -3130,6 +3153,7 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
 		return -EINVAL;
 
 	process_nmi(vcpu);
+	vcpu->arch.exception.injected = false;
 	vcpu->arch.exception.pending = events->exception.injected;
 	vcpu->arch.exception.nr = events->exception.nr;
 	vcpu->arch.exception.has_error_code = events->exception.has_error_code;
@@ -4671,25 +4695,18 @@ static int emulator_read_write_onepage(unsigned long addr, void *val,
 	 */
 	if (vcpu->arch.gpa_available &&
 	    emulator_can_use_gpa(ctxt) &&
-	    vcpu_is_mmio_gpa(vcpu, addr, exception->address, write) &&
-	    (addr & ~PAGE_MASK) == (exception->address & ~PAGE_MASK)) {
-		gpa = exception->address;
-		goto mmio;
+	    (addr & ~PAGE_MASK) == (vcpu->arch.gpa_val & ~PAGE_MASK)) {
+		gpa = vcpu->arch.gpa_val;
+		ret = vcpu_is_mmio_gpa(vcpu, addr, gpa, write);
+	} else {
+		ret = vcpu_mmio_gva_to_gpa(vcpu, addr, &gpa, exception, write);
+		if (ret < 0)
+			return X86EMUL_PROPAGATE_FAULT;
 	}
 
-	ret = vcpu_mmio_gva_to_gpa(vcpu, addr, &gpa, exception, write);
-
-	if (ret < 0)
-		return X86EMUL_PROPAGATE_FAULT;
-
-	/* For APIC access vmexit */
-	if (ret)
-		goto mmio;
-
-	if (ops->read_write_emulate(vcpu, gpa, val, bytes))
+	if (!ret && ops->read_write_emulate(vcpu, gpa, val, bytes))
 		return X86EMUL_CONTINUE;
 
-mmio:
 	/*
 	 * Is this MMIO handled locally?
 	 */
@@ -5227,10 +5244,10 @@ static int emulator_intercept(struct x86_emulate_ctxt *ctxt,
 	return kvm_x86_ops->check_intercept(emul_to_vcpu(ctxt), info, stage);
 }
 
-static void emulator_get_cpuid(struct x86_emulate_ctxt *ctxt,
-			       u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
+static bool emulator_get_cpuid(struct x86_emulate_ctxt *ctxt,
+			u32 *eax, u32 *ebx, u32 *ecx, u32 *edx, bool check_limit)
 {
-	kvm_cpuid(emul_to_vcpu(ctxt), eax, ebx, ecx, edx);
+	return kvm_cpuid(emul_to_vcpu(ctxt), eax, ebx, ecx, edx, check_limit);
 }
 
 static ulong emulator_read_gpr(struct x86_emulate_ctxt *ctxt, unsigned reg)
@@ -6362,11 +6379,42 @@ static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win)
 	int r;
 
 	/* try to reinject previous events if any */
+	if (vcpu->arch.exception.injected) {
+		kvm_x86_ops->queue_exception(vcpu);
+		return 0;
+	}
+
+	/*
+	 * Exceptions must be injected immediately, or the exception
+	 * frame will have the address of the NMI or interrupt handler.
+	 */
+	if (!vcpu->arch.exception.pending) {
+		if (vcpu->arch.nmi_injected) {
+			kvm_x86_ops->set_nmi(vcpu);
+			return 0;
+		}
+
+		if (vcpu->arch.interrupt.pending) {
+			kvm_x86_ops->set_irq(vcpu);
+			return 0;
+		}
+	}
+
+	if (is_guest_mode(vcpu) && kvm_x86_ops->check_nested_events) {
+		r = kvm_x86_ops->check_nested_events(vcpu, req_int_win);
+		if (r != 0)
+			return r;
+	}
+
+	/* try to inject new event if pending */
 	if (vcpu->arch.exception.pending) {
 		trace_kvm_inj_exception(vcpu->arch.exception.nr,
 					vcpu->arch.exception.has_error_code,
 					vcpu->arch.exception.error_code);
 
+		vcpu->arch.exception.pending = false;
+		vcpu->arch.exception.injected = true;
+
 		if (exception_type(vcpu->arch.exception.nr) == EXCPT_FAULT)
 			__kvm_set_rflags(vcpu, kvm_get_rflags(vcpu) |
 					     X86_EFLAGS_RF);
@@ -6378,27 +6426,7 @@ static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win)
 		}
 
 		kvm_x86_ops->queue_exception(vcpu);
-		return 0;
-	}
-
-	if (vcpu->arch.nmi_injected) {
-		kvm_x86_ops->set_nmi(vcpu);
-		return 0;
-	}
-
-	if (vcpu->arch.interrupt.pending) {
-		kvm_x86_ops->set_irq(vcpu);
-		return 0;
-	}
-
-	if (is_guest_mode(vcpu) && kvm_x86_ops->check_nested_events) {
-		r = kvm_x86_ops->check_nested_events(vcpu, req_int_win);
-		if (r != 0)
-			return r;
-	}
-
-	/* try to inject new event if pending */
-	if (vcpu->arch.smi_pending && !is_smm(vcpu)) {
+	} else if (vcpu->arch.smi_pending && !is_smm(vcpu)) {
 		vcpu->arch.smi_pending = false;
 		enter_smm(vcpu);
 	} else if (vcpu->arch.nmi_pending && kvm_x86_ops->nmi_allowed(vcpu)) {
@@ -6615,7 +6643,7 @@ static void enter_smm(struct kvm_vcpu *vcpu)
 	trace_kvm_enter_smm(vcpu->vcpu_id, vcpu->arch.smbase, true);
 	vcpu->arch.hflags |= HF_SMM_MASK;
 	memset(buf, 0, 512);
-	if (guest_cpuid_has_longmode(vcpu))
+	if (guest_cpuid_has(vcpu, X86_FEATURE_LM))
 		enter_smm_save_state_64(vcpu, buf);
 	else
 		enter_smm_save_state_32(vcpu, buf);
@@ -6667,7 +6695,7 @@ static void enter_smm(struct kvm_vcpu *vcpu)
 	kvm_set_segment(vcpu, &ds, VCPU_SREG_GS);
 	kvm_set_segment(vcpu, &ds, VCPU_SREG_SS);
 
-	if (guest_cpuid_has_longmode(vcpu))
+	if (guest_cpuid_has(vcpu, X86_FEATURE_LM))
 		kvm_x86_ops->set_efer(vcpu, 0);
 
 	kvm_update_cpuid(vcpu);
@@ -6774,6 +6802,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 		}
 		if (kvm_check_request(KVM_REQ_TRIPLE_FAULT, vcpu)) {
 			vcpu->run->exit_reason = KVM_EXIT_SHUTDOWN;
+			vcpu->mmio_needed = 0;
 			r = 0;
 			goto out;
 		}
@@ -6862,6 +6891,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 				kvm_x86_ops->enable_nmi_window(vcpu);
 			if (kvm_cpu_has_injectable_intr(vcpu) || req_int_win)
 				kvm_x86_ops->enable_irq_window(vcpu);
+			WARN_ON(vcpu->arch.exception.pending);
 		}
 
 		if (kvm_lapic_enabled(vcpu)) {
@@ -7004,6 +7034,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 	if (vcpu->arch.apic_attention)
 		kvm_lapic_sync_from_vapic(vcpu);
 
+	vcpu->arch.gpa_available = false;
 	r = kvm_x86_ops->handle_exit(vcpu);
 	return r;
 
@@ -7422,7 +7453,13 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 	int pending_vec, max_bits, idx;
 	struct desc_ptr dt;
 
-	if (!guest_cpuid_has_xsave(vcpu) && (sregs->cr4 & X86_CR4_OSXSAVE))
+	if (!guest_cpuid_has(vcpu, X86_FEATURE_XSAVE) &&
+			(sregs->cr4 & X86_CR4_OSXSAVE))
+		return -EINVAL;
+
+	apic_base_msr.data = sregs->apic_base;
+	apic_base_msr.host_initiated = true;
+	if (kvm_set_apic_base(vcpu, &apic_base_msr))
 		return -EINVAL;
 
 	dt.size = sregs->idt.limit;
@@ -7441,9 +7478,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 
 	mmu_reset_needed |= vcpu->arch.efer != sregs->efer;
 	kvm_x86_ops->set_efer(vcpu, sregs->efer);
-	apic_base_msr.data = sregs->apic_base;
-	apic_base_msr.host_initiated = true;
-	kvm_set_apic_base(vcpu, &apic_base_msr);
 
 	mmu_reset_needed |= kvm_read_cr0(vcpu) != sregs->cr0;
 	kvm_x86_ops->set_cr0(vcpu, sregs->cr0);
@@ -7734,6 +7768,7 @@ void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
 	vcpu->arch.nmi_injected = false;
 	kvm_clear_interrupt_queue(vcpu);
 	kvm_clear_exception_queue(vcpu);
+	vcpu->arch.exception.pending = false;
 
 	memset(vcpu->arch.db, 0, sizeof(vcpu->arch.db));
 	kvm_update_dr0123(vcpu);
@@ -7993,6 +8028,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 	kvm_pmu_init(vcpu);
 
 	vcpu->arch.pending_external_vector = -1;
+	vcpu->arch.preempted_in_kernel = false;
 
 	kvm_hv_vcpu_init(vcpu);
 
@@ -8440,6 +8476,11 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
 	return kvm_vcpu_running(vcpu) || kvm_vcpu_has_events(vcpu);
 }
 
+bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.preempted_in_kernel;
+}
+
 int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
 {
 	return kvm_vcpu_exiting_guest_mode(vcpu) == IN_GUEST_MODE;
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index 612067074905..51e349cf5f45 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -11,7 +11,7 @@
 
 static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
 {
-	vcpu->arch.exception.pending = false;
+	vcpu->arch.exception.injected = false;
 }
 
 static inline void kvm_queue_interrupt(struct kvm_vcpu *vcpu, u8 vector,
@@ -29,7 +29,7 @@ static inline void kvm_clear_interrupt_queue(struct kvm_vcpu *vcpu)
 
 static inline bool kvm_event_needs_reinjection(struct kvm_vcpu *vcpu)
 {
-	return vcpu->arch.exception.pending || vcpu->arch.interrupt.pending ||
+	return vcpu->arch.exception.injected || vcpu->arch.interrupt.pending ||
 		vcpu->arch.nmi_injected;
 }
 
@@ -62,6 +62,16 @@ static inline bool is_64_bit_mode(struct kvm_vcpu *vcpu)
 	return cs_l;
 }
 
+static inline bool is_la57_mode(struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_X86_64
+	return (vcpu->arch.efer & EFER_LMA) &&
+		 kvm_read_cr4_bits(vcpu, X86_CR4_LA57);
+#else
+	return 0;
+#endif
+}
+
 static inline bool mmu_is_nested(struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.walk_mmu == &vcpu->arch.nested_mmu;
@@ -87,10 +97,48 @@ static inline u32 bit(int bitno)
 	return 1 << (bitno & 31);
 }
 
+static inline u8 vcpu_virt_addr_bits(struct kvm_vcpu *vcpu)
+{
+	return kvm_read_cr4_bits(vcpu, X86_CR4_LA57) ? 57 : 48;
+}
+
+static inline u8 ctxt_virt_addr_bits(struct x86_emulate_ctxt *ctxt)
+{
+	return (ctxt->ops->get_cr(ctxt, 4) & X86_CR4_LA57) ? 57 : 48;
+}
+
+static inline u64 get_canonical(u64 la, u8 vaddr_bits)
+{
+	return ((int64_t)la << (64 - vaddr_bits)) >> (64 - vaddr_bits);
+}
+
+static inline bool is_noncanonical_address(u64 la, struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_X86_64
+	return get_canonical(la, vcpu_virt_addr_bits(vcpu)) != la;
+#else
+	return false;
+#endif
+}
+
+static inline bool emul_is_noncanonical_address(u64 la,
+						struct x86_emulate_ctxt *ctxt)
+{
+#ifdef CONFIG_X86_64
+	return get_canonical(la, ctxt_virt_addr_bits(ctxt)) != la;
+#else
+	return false;
+#endif
+}
+
 static inline void vcpu_cache_mmio_info(struct kvm_vcpu *vcpu,
 					gva_t gva, gfn_t gfn, unsigned access)
 {
-	vcpu->arch.mmio_gva = gva & PAGE_MASK;
+	/*
+	 * If this is a shadow nested page table, the "GVA" is
+	 * actually a nGPA.
+	 */
+	vcpu->arch.mmio_gva = mmu_is_nested(vcpu) ? 0 : gva & PAGE_MASK;
 	vcpu->arch.access = access;
 	vcpu->arch.mmio_gfn = gfn;
 	vcpu->arch.mmio_gen = kvm_memslots(vcpu->kvm)->generation;
author	Linus Torvalds <torvalds@linux-foundation.org>	2017-09-08 15:18:36 -0700
committer	Linus Torvalds <torvalds@linux-foundation.org>	2017-09-08 15:18:36 -0700
commit	0756b7fbb696d2cb18785da9cab13ec164017f64 (patch)
tree	d06242e3f35a7623e00068d7c95d06824f396df3 /arch/x86
parent	6d6218976df142ba5594371f8dbd56650151c56f (diff)
parent	5f54c8b2d4fad95d1f8ecbe023ebe6038e6d3760 (diff)