[PATCH v3 1/5] KVM: x86: Move enabling EFER.SVME and EFER.LMSLE to generic EFER setup

[Yosry Ahmed]

Move SVM-specific EFER bit enablement to generic x86 code, with the rest
of EFER bit enablement. Unifying the code for EFER bit enablement allows
for a later change to re-initialize EFER bits on module init.

No functional change intended.

Cc: stable@xxxxxxxxxxxxxxx
Suggested-by: Sean Christopherson <seanjc@xxxxxxxxxx>
Signed-off-by: Yosry Ahmed <yosry@xxxxxxxxxx>
---
 arch/x86/kvm/svm/svm.c | 4 ----
 arch/x86/kvm/x86.c     | 6 ++++++
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 91286d46d13ad..09799fd8ef38f 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -5628,10 +5628,6 @@ static __init int svm_hardware_setup(void)
 
 	if (nested) {
 		pr_info("Nested Virtualization enabled\n");
-		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)
 			return r;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1f5dc685f0490..ca01a2f2ec466 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6921,6 +6921,12 @@ static void kvm_setup_efer_caps(void)
 
 	if (kvm_cpu_cap_has(X86_FEATURE_AUTOIBRS))
 		kvm_enable_efer_bits(EFER_AUTOIBRS);
+
+	if (kvm_cpu_cap_has(X86_FEATURE_SVM)) {
+		kvm_enable_efer_bits(EFER_SVME);
+		if (!boot_cpu_has(X86_FEATURE_EFER_LMSLE_MBZ))
+			kvm_enable_efer_bits(EFER_LMSLE);
+	}
 }
 
 static void kvm_nested_ops_update(const struct kvm_x86_nested_ops *nested_ops)
-- 
2.55.0.141.g00534a21ce-goog