From 6ccc19d4c1eb97a994180af8afcab58422cb409d Mon Sep 17 00:00:00 2001 From: Yosry Ahmed Date: Mon, 13 Jul 2026 18:10:16 +0000 Subject: KVM: x86: Move enabling EFER.SVME and EFER.LMSLE to generic EFER setup 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@vger.kernel.org Suggested-by: Sean Christopherson Signed-off-by: Yosry Ahmed Link: https://patch.msgid.link/20260713181020.2735367-2-yosry@kernel.org Signed-off-by: Sean Christopherson --- 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 d3807f4abb49..1b7e613fde7b 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -5636,10 +5636,6 @@ 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 d9cff1f8dff3..a4216b858194 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6918,6 +6918,12 @@ 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) -- cgit v1.2.3