Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 <thomas.lendacky@amd.com>
Link: https://patch.msgid.link/20260109033101.1005769-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
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arch/x86/kvm/svm/sev.c
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-2
arch/x86/kvm/svm/sev.c
···
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static bool sev_snp_enabled = true;
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module_param_named(sev_snp, sev_snp_enabled, bool, 0444);
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-
static u64 sev_supported_vmsa_features;
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-
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static unsigned int nr_ciphertext_hiding_asids;
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module_param_named(ciphertext_hiding_asids, nr_ciphertext_hiding_asids, uint, 0444);
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···
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SNP_POLICY_MASK_PAGE_SWAP_DISABLE)
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static u64 snp_supported_policy_bits __ro_after_init;
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static u64 sev_supported_vmsa_features __ro_after_init;
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#define INITIAL_VMSA_GPA 0xFFFFFFFFF000
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