github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-26 16:12:59 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

x86/boot: Drop unused sev_enable() fallback

Browse Source 
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
This commit is contained in:
Ard Biesheuvel 2025-09-09 10:06:33 +02:00 committed by Borislav Petkov (AMD)
parent b2c1dd6c6f
commit a3e6907128
1 changed files with 0 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
arch/x86/boot/compressed/misc.h
View File

@ -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)