Merge 6.19.7

Signed-off-by: Sasha Levin <sashal@kernel.org>

1 files changed, 19 insertions, 18 deletions

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index eed104207a11..a58548b35b85 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1201,6 +1201,11 @@ void svm_switch_vmcb(struct vcpu_svm *svm, struct kvm_vmcb_info *target_vmcb)
 	svm->vmcb = target_vmcb->ptr;
 }
 
+static int svm_vcpu_precreate(struct kvm *kvm)
+{
+	return avic_alloc_physical_id_table(kvm);
+}
+
 static int svm_vcpu_create(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm;
@@ -3447,13 +3452,8 @@ static bool svm_check_exit_valid(u64 exit_code)
 
 static int svm_handle_invalid_exit(struct kvm_vcpu *vcpu, u64 exit_code)
 {
-	vcpu_unimpl(vcpu, "svm: unexpected exit reason 0x%llx\n", exit_code);
 	dump_vmcb(vcpu);
-	vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
-	vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON;
-	vcpu->run->internal.ndata = 2;
-	vcpu->run->internal.data[0] = exit_code;
-	vcpu->run->internal.data[1] = vcpu->arch.last_vmentry_cpu;
+	kvm_prepare_unexpected_reason_exit(vcpu, exit_code);
 	return 0;
 }
 
@@ -4255,7 +4255,6 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu, u64 run_flags)
 		svm_set_dr6(vcpu, DR6_ACTIVE_LOW);
 
 	clgi();
-	kvm_load_guest_xsave_state(vcpu);
 
 	/*
 	 * Hardware only context switches DEBUGCTL if LBR virtualization is
@@ -4298,7 +4297,6 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu, u64 run_flags)
 	    vcpu->arch.host_debugctl != svm->vmcb->save.dbgctl)
 		update_debugctlmsr(vcpu->arch.host_debugctl);
 
-	kvm_load_host_xsave_state(vcpu);
 	stgi();
 
 	/* Any pending NMI will happen here */
@@ -4330,14 +4328,6 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu, u64 run_flags)
 
 	vcpu->arch.regs_avail &= ~SVM_REGS_LAZY_LOAD_SET;
 
-	/*
-	 * We need to handle MC intercepts here before the vcpu has a chance to
-	 * change the physical cpu
-	 */
-	if (unlikely(svm->vmcb->control.exit_code ==
-		     SVM_EXIT_EXCP_BASE + MC_VECTOR))
-		svm_handle_mce(vcpu);
-
 	trace_kvm_exit(vcpu, KVM_ISA_SVM);
 
 	svm_complete_interrupts(vcpu);
@@ -4641,8 +4631,16 @@ out:
 
 static void svm_handle_exit_irqoff(struct kvm_vcpu *vcpu)
 {
-	if (to_svm(vcpu)->vmcb->control.exit_code == SVM_EXIT_INTR)
+	switch (to_svm(vcpu)->vmcb->control.exit_code) {
+	case SVM_EXIT_EXCP_BASE + MC_VECTOR:
+		svm_handle_mce(vcpu);
+		break;
+	case SVM_EXIT_INTR:
 		vcpu->arch.at_instruction_boundary = true;
+		break;
+	default:
+		break;
+	}
 }
 
 static void svm_setup_mce(struct kvm_vcpu *vcpu)
@@ -5031,6 +5029,7 @@ struct kvm_x86_ops svm_x86_ops __initdata = {
 	.emergency_disable_virtualization_cpu = svm_emergency_disable_virtualization_cpu,
 	.has_emulated_msr = svm_has_emulated_msr,
 
+	.vcpu_precreate = svm_vcpu_precreate,
 	.vcpu_create = svm_vcpu_create,
 	.vcpu_free = svm_vcpu_free,
 	.vcpu_reset = svm_vcpu_reset,
@@ -5337,7 +5336,9 @@ static __init int svm_hardware_setup(void)
 
 	if (nested) {
 		pr_info("Nested Virtualization enabled\n");
-		kvm_enable_efer_bits(EFER_SVME | EFER_LMSLE);
+		kvm_enable_efer_bits(EFER_SVME);
+		if (!boot_cpu_has(X86_FEATURE_EFER_LMSLE_MBZ))
+			kvm_enable_efer_bits(EFER_LMSLE);
 
 		r = nested_svm_init_msrpm_merge_offsets();
 		if (r)