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authorNikunj A Dadhania <nikunj@amd.com>2025-01-06 18:16:33 +0530
committerBorislav Petkov (AMD) <bp@alien8.de>2025-01-09 10:21:56 +0100
commit0563ee35ae2c9cfb0c6a7b2c0ddf7d9372bb8a98 (patch)
treebe2bd18f0861560577b028cc81358f439114cc4f /arch/x86
parent73bbf3b0fbba9aa27fef07a1fbd837661a863f03 (diff)
x86/sev: Add the Secure TSC feature for SNP guests
Now that all the required plumbing is done for enabling Secure TSC, add it to the SNP features present list. Signed-off-by: Nikunj A Dadhania <nikunj@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com> Tested-by: Peter Gonda <pgonda@google.com> Link: https://lore.kernel.org/r/20250106124633.1418972-14-nikunj@amd.com
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/boot/compressed/sev.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c
index cd44e120fe53..bb55934c1cee 100644
--- a/arch/x86/boot/compressed/sev.c
+++ b/arch/x86/boot/compressed/sev.c
@@ -401,7 +401,8 @@ finish:
* 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_PRESENT (MSR_AMD64_SNP_DEBUG_SWAP | \
+ MSR_AMD64_SNP_SECURE_TSC)
u64 snp_get_unsupported_features(u64 status)
{