From: Tom Lendacky <thomas.lendacky@xxxxxxx> 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 <tglx@xxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxx> Cc: Andy Lutomirski <luto@xxxxxxxxxx> Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: x86@xxxxxxxxxx Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx> Signed-off-by: Brijesh Singh <brijesh.singh@xxxxxxx> Reviewed-by: Borislav Petkov <bp@xxxxxxx> --- 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
