x86/sev: Rename SNP_FEATURES_PRESENT to SNP_FEATURES_IMPL

Rename SNP_FEATURES_PRESENT to SNP_FEATURES_IMPL to denote its counterpart
relationship with SNP_FEATURES_IMPL_REQ.

  [ bp: Drop stable@, massage commit message. ]

Suggested-by: Borislav Petkov (AMD) <bp@alien8.de>
Suggested-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://patch.msgid.link/20260203222405.4065706-4-kim.phillips@amd.com

diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c
index e468476e9e4a0749e5987a666aaf174ffd341a7b..c6512f2ea31e8510f8f49fe4183b53d19a9c509c 100644 (file)
--- a/arch/x86/boot/compressed/sev.c
+++ b/arch/x86/boot/compressed/sev.c
@@ -198,11 +198,11 @@ bool sev_es_check_ghcb_fault(unsigned long address)
 #endif
 
 /*
- * SNP_FEATURES_PRESENT is the mask of SNP features that are implemented
+ * SNP_FEATURES_IMPL is the mask of SNP features that are implemented
  * by the guest kernel. As and when a new feature is implemented in the
  * guest kernel, a corresponding bit should be added to the mask.
  */
-#define SNP_FEATURES_PRESENT   (MSR_AMD64_SNP_DEBUG_SWAP |     \
+#define SNP_FEATURES_IMPL      (MSR_AMD64_SNP_DEBUG_SWAP |     \
                                 MSR_AMD64_SNP_SECURE_TSC |     \
                                 SNP_FEATURE_SECURE_AVIC)
 
@@ -211,7 +211,7 @@ u64 snp_get_unsupported_features(u64 status)
        if (!(status & MSR_AMD64_SEV_SNP_ENABLED))
                return 0;
 
-       return status & SNP_FEATURES_IMPL_REQ & ~SNP_FEATURES_PRESENT;
+       return status & SNP_FEATURES_IMPL_REQ & ~SNP_FEATURES_IMPL;
 }
 
 void snp_check_features(void)