diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index fd8cd50..4b4b59b 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -10040,7 +10040,7 @@
  * is assigned to entry_failure_code on failure.
  */
 static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
-			  unsigned long *entry_failure_code)
+			  bool from_vmentry, unsigned long *entry_failure_code)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	u32 exec_control;
@@ -10083,21 +10083,26 @@
 	vmcs_writel(GUEST_GDTR_BASE, vmcs12->guest_gdtr_base);
 	vmcs_writel(GUEST_IDTR_BASE, vmcs12->guest_idtr_base);
 
-	if (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_DEBUG_CONTROLS) {
+	if (from_vmentry &&
+	    (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_DEBUG_CONTROLS)) {
 		kvm_set_dr(vcpu, 7, vmcs12->guest_dr7);
 		vmcs_write64(GUEST_IA32_DEBUGCTL, vmcs12->guest_ia32_debugctl);
 	} else {
 		kvm_set_dr(vcpu, 7, vcpu->arch.dr7);
 		vmcs_write64(GUEST_IA32_DEBUGCTL, vmx->nested.vmcs01_debugctl);
 	}
-	vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
-		vmcs12->vm_entry_intr_info_field);
-	vmcs_write32(VM_ENTRY_EXCEPTION_ERROR_CODE,
-		vmcs12->vm_entry_exception_error_code);
-	vmcs_write32(VM_ENTRY_INSTRUCTION_LEN,
-		vmcs12->vm_entry_instruction_len);
-	vmcs_write32(GUEST_INTERRUPTIBILITY_INFO,
-		vmcs12->guest_interruptibility_info);
+	if (from_vmentry) {
+		vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
+			     vmcs12->vm_entry_intr_info_field);
+		vmcs_write32(VM_ENTRY_EXCEPTION_ERROR_CODE,
+			     vmcs12->vm_entry_exception_error_code);
+		vmcs_write32(VM_ENTRY_INSTRUCTION_LEN,
+			     vmcs12->vm_entry_instruction_len);
+		vmcs_write32(GUEST_INTERRUPTIBILITY_INFO,
+			     vmcs12->guest_interruptibility_info);
+	} else {
+		vmcs_write32(VM_ENTRY_INTR_INFO_FIELD, 0);
+	}
 	vmcs_write32(GUEST_SYSENTER_CS, vmcs12->guest_sysenter_cs);
 	vmx_set_rflags(vcpu, vmcs12->guest_rflags);
 	vmcs_writel(GUEST_PENDING_DBG_EXCEPTIONS,
@@ -10290,16 +10295,18 @@
 			~VM_ENTRY_IA32E_MODE) |
 		(vmcs_config.vmentry_ctrl & ~VM_ENTRY_IA32E_MODE));
 
-	if (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_IA32_PAT) {
+	if (from_vmentry &&
+	    (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_IA32_PAT)) {
 		vmcs_write64(GUEST_IA32_PAT, vmcs12->guest_ia32_pat);
 		vcpu->arch.pat = vmcs12->guest_ia32_pat;
-	} else if (vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_IA32_PAT)
+	} else if (vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_IA32_PAT) {
 		vmcs_write64(GUEST_IA32_PAT, vmx->vcpu.arch.pat);
-
+	}
 
 	set_cr4_guest_host_mask(vmx);
 
-	if (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_BNDCFGS)
+	if (from_vmentry &&
+	    vmcs12->vm_entry_controls & VM_ENTRY_LOAD_BNDCFGS)
 		vmcs_write64(GUEST_BNDCFGS, vmcs12->guest_bndcfgs);
 
 	if (vmcs12->cpu_based_vm_exec_control & CPU_BASED_USE_TSC_OFFSETING)
@@ -10351,7 +10358,8 @@
 	vmx_set_cr4(vcpu, vmcs12->guest_cr4);
 	vmcs_writel(CR4_READ_SHADOW, nested_read_cr4(vmcs12));
 
-	if (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_IA32_EFER)
+	if (from_vmentry &&
+	    (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_IA32_EFER))
 		vcpu->arch.efer = vmcs12->guest_ia32_efer;
 	else if (vmcs12->vm_entry_controls & VM_ENTRY_IA32E_MODE)
 		vcpu->arch.efer |= (EFER_LMA | EFER_LME);
@@ -10561,7 +10569,7 @@
 
 	vmx_segment_cache_clear(vmx);
 
-	if (prepare_vmcs02(vcpu, vmcs12, &exit_qualification)) {
+	if (prepare_vmcs02(vcpu, vmcs12, true, &exit_qualification)) {
 		leave_guest_mode(vcpu);
 		vmx_load_vmcs01(vcpu);
 		nested_vmx_entry_failure(vcpu, vmcs12,
@@ -10733,21 +10741,13 @@
 }
 
 /*
- * prepare_vmcs12 is part of what we need to do when the nested L2 guest exits
- * and we want to prepare to run its L1 parent. L1 keeps a vmcs for L2 (vmcs12),
- * and this function updates it to reflect the changes to the guest state while
- * L2 was running (and perhaps made some exits which were handled directly by L0
- * without going back to L1), and to reflect the exit reason.
- * Note that we do not have to copy here all VMCS fields, just those that
- * could have changed by the L2 guest or the exit - i.e., the guest-state and
- * exit-information fields only. Other fields are modified by L1 with VMWRITE,
- * which already writes to vmcs12 directly.
+ * Update the guest state fields of vmcs12 to reflect changes that
+ * occurred while L2 was running. (The "IA-32e mode guest" bit of the
+ * VM-entry controls is also updated, since this is really a guest
+ * state bit.)
  */
-static void prepare_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
-			   u32 exit_reason, u32 exit_intr_info,
-			   unsigned long exit_qualification)
+static void sync_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 {
-	/* update guest state fields: */
 	vmcs12->guest_cr0 = vmcs12_guest_cr0(vcpu, vmcs12);
 	vmcs12->guest_cr4 = vmcs12_guest_cr4(vcpu, vmcs12);
 
@@ -10853,6 +10853,25 @@
 		vmcs12->guest_bndcfgs = vmcs_read64(GUEST_BNDCFGS);
 	if (nested_cpu_has_xsaves(vmcs12))
 		vmcs12->xss_exit_bitmap = vmcs_read64(XSS_EXIT_BITMAP);
+}
+
+/*
+ * prepare_vmcs12 is part of what we need to do when the nested L2 guest exits
+ * and we want to prepare to run its L1 parent. L1 keeps a vmcs for L2 (vmcs12),
+ * and this function updates it to reflect the changes to the guest state while
+ * L2 was running (and perhaps made some exits which were handled directly by L0
+ * without going back to L1), and to reflect the exit reason.
+ * Note that we do not have to copy here all VMCS fields, just those that
+ * could have changed by the L2 guest or the exit - i.e., the guest-state and
+ * exit-information fields only. Other fields are modified by L1 with VMWRITE,
+ * which already writes to vmcs12 directly.
+ */
+static void prepare_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
+			   u32 exit_reason, u32 exit_intr_info,
+			   unsigned long exit_qualification)
+{
+	/* update guest state fields: */
+	sync_vmcs12(vcpu, vmcs12);
 
 	/* update exit information fields: */