From: Sean Christopherson Date: Fri, 9 Jan 2026 03:31:01 +0000 (-0800) Subject: KVM: SVM: Tag sev_supported_vmsa_features as read-only after init X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d23051f59a5b4eb1f6163cf27e07b8cfcaeb4758;p=thirdparty%2Flinux.git KVM: SVM: Tag sev_supported_vmsa_features as read-only after init Tag sev_supported_vmsa_features with __ro_after_init as it's configured by sev_hardware_setup() and never written after initial configuration (and if it were, that'd be a blatant bug). Opportunistically relocate the variable out of the module params area now that sev_es_debug_swap_enabled is gone (which largely motivated its original location). Reviewed-by: Tom Lendacky Link: https://patch.msgid.link/20260109033101.1005769-3-seanjc@google.com Signed-off-by: Sean Christopherson --- diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index 9b92f0cccfe67..28150506b18c4 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -53,8 +53,6 @@ module_param_named(sev_es, sev_es_enabled, bool, 0444); static bool sev_snp_enabled = true; module_param_named(sev_snp, sev_snp_enabled, bool, 0444); -static u64 sev_supported_vmsa_features; - static unsigned int nr_ciphertext_hiding_asids; module_param_named(ciphertext_hiding_asids, nr_ciphertext_hiding_asids, uint, 0444); @@ -81,6 +79,8 @@ module_param_named(ciphertext_hiding_asids, nr_ciphertext_hiding_asids, uint, 04 static u64 snp_supported_policy_bits __ro_after_init; +static u64 sev_supported_vmsa_features __ro_after_init; + #define INITIAL_VMSA_GPA 0xFFFFFFFFF000 static u8 sev_enc_bit;