From: Tom Lendacky <[email protected]> When SEV is active the initrd/initramfs will already have already been placed in memory encrypted so do not try to encrypt it.
Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Tom Lendacky <[email protected]> Signed-off-by: Brijesh Singh <[email protected]> Reviewed-by: Borislav Petkov <[email protected]> --- arch/x86/kernel/setup.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 82559867e0a9..967155e63afe 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -368,9 +368,11 @@ static void __init reserve_initrd(void) * If SME is active, this memory will be marked encrypted by the * kernel when it is accessed (including relocation). However, the * ramdisk image was loaded decrypted by the bootloader, so make - * sure that it is encrypted before accessing it. + * sure that it is encrypted before accessing it. For SEV the + * ramdisk will already be encrypted, so only do this for SME. */ - sme_early_encrypt(ramdisk_image, ramdisk_end - ramdisk_image); + if (sme_active()) + sme_early_encrypt(ramdisk_image, ramdisk_end - ramdisk_image); initrd_start = 0; -- 2.9.5
