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authorArd Biesheuvel <ardb@kernel.org>2025-09-09 10:06:33 +0200
committerBorislav Petkov (AMD) <bp@alien8.de>2025-11-20 21:12:48 +0100
commita3e69071289288e2721ba15254e7c5274eddd05a (patch)
treef42b757abf4668ccf41bd99b61ab4ee117ffb4d5
parentb2c1dd6c6f70a5a519532227358c82d4cfda5b36 (diff)
x86/boot: Drop unused sev_enable() fallback
The misc.h header is not included by the EFI stub, which is the only C caller of sev_enable(). This means the fallback for cases where CONFIG_AMD_MEM_ENCRYPT is not set is never used, so it can be dropped. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com> Link: https://patch.msgid.link/20250909080631.2867579-6-ardb+git@google.com
-rw-r--r--arch/x86/boot/compressed/misc.h11
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index db1048621ea2..fd855e32c9b9 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -152,17 +152,6 @@ bool insn_has_rep_prefix(struct insn *insn);
void sev_insn_decode_init(void);
bool early_setup_ghcb(void);
#else
-static inline void sev_enable(struct boot_params *bp)
-{
- /*
- * bp->cc_blob_address should only be set by boot/compressed kernel.
- * Initialize it to 0 unconditionally (thus here in this stub too) to
- * ensure that uninitialized values from buggy bootloaders aren't
- * propagated.
- */
- if (bp)
- bp->cc_blob_address = 0;
-}
static inline void snp_check_features(void) { }
static inline void sev_es_shutdown_ghcb(void) { }
static inline bool sev_es_check_ghcb_fault(unsigned long address)