Commit a3e69071 authored by Ard Biesheuvel's avatar Ard Biesheuvel Committed by Borislav Petkov (AMD)
Browse files

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: default avatarArd Biesheuvel <ardb@kernel.org>
Signed-off-by: default avatarBorislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: default avatarTom Lendacky <thomas.lendacky@amd.com>
Link: https://patch.msgid.link/20250909080631.2867579-6-ardb+git@google.com
parent b2c1dd6c

arch/x86/boot/compressed/misc.h

+0 −11
Original line number Diff line number Diff line
@@ -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)