From: Mario Limonciello Date: Thu, 13 Nov 2025 22:35:50 +0000 (-0600) Subject: x86/CPU/AMD: Add additional fixed RDSEED microcode revisions X-Git-Tag: v6.18-rc6~6^2~1 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e1a97a627cd01d73fac5dd054d8f3de601ef2781;p=thirdparty%2Flinux.git x86/CPU/AMD: Add additional fixed RDSEED microcode revisions Microcode that resolves the RDSEED failure (SB-7055 [1]) has been released for additional Zen5 models to linux-firmware [2]. Update the zen5_rdseed_microcode array to cover these new models. Fixes: 607b9fb2ce24 ("x86/CPU/AMD: Add RDSEED fix for Zen5") Signed-off-by: Mario Limonciello Signed-off-by: Borislav Petkov (AMD) Cc: Link: https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7055.html [1] Link: https://gitlab.com/kernel-firmware/linux-firmware/-/commit/6167e5566900cf236f7a69704e8f4c441bc7212a [2] Link: https://patch.msgid.link/20251113223608.1495655-1-mario.limonciello@amd.com --- diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 2ba9f2d42d8c..5d46709c58d0 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -1037,7 +1037,14 @@ static void init_amd_zen4(struct cpuinfo_x86 *c) static const struct x86_cpu_id zen5_rdseed_microcode[] = { ZEN_MODEL_STEP_UCODE(0x1a, 0x02, 0x1, 0x0b00215a), + ZEN_MODEL_STEP_UCODE(0x1a, 0x08, 0x1, 0x0b008121), ZEN_MODEL_STEP_UCODE(0x1a, 0x11, 0x0, 0x0b101054), + ZEN_MODEL_STEP_UCODE(0x1a, 0x24, 0x0, 0x0b204037), + ZEN_MODEL_STEP_UCODE(0x1a, 0x44, 0x0, 0x0b404035), + ZEN_MODEL_STEP_UCODE(0x1a, 0x44, 0x1, 0x0b404108), + ZEN_MODEL_STEP_UCODE(0x1a, 0x60, 0x0, 0x0b600037), + ZEN_MODEL_STEP_UCODE(0x1a, 0x68, 0x0, 0x0b608038), + ZEN_MODEL_STEP_UCODE(0x1a, 0x70, 0x0, 0x0b700037), {}, };