linux-kernel - [PATCH 1/2] x86/microcode/AMD: Load late on both threads too

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Message-Id: <20230605141332.25948-1-bp@alien8.de>
Date:   Mon,  5 Jun 2023 16:13:31 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     X86 ML <x86@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, stable@...nel.org
Subject: [PATCH 1/2] x86/microcode/AMD: Load late on both threads too

From: "Borislav Petkov (AMD)" <bp@...en8.de>

Do the same as early loading - load on both threads.

Signed-off-by: Borislav Petkov (AMD) <bp@...en8.de>
Cc: <stable@...nel.org>
---
 arch/x86/kernel/cpu/microcode/amd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index f14f4ea0b537..87208e46f7ed 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -700,7 +700,7 @@ static enum ucode_state apply_microcode_amd(int cpu)
 	rdmsr(MSR_AMD64_PATCH_LEVEL, rev, dummy);
 
 	/* need to apply patch? */
-	if (rev >= mc_amd->hdr.patch_id) {
+	if (rev > mc_amd->hdr.patch_id) {
 		ret = UCODE_OK;
 		goto out;
 	}
-- 
2.35.1