This is a note to let you know that I've just added the patch titled
x86/microcode/AMD: Load late on both threads too
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-microcode-amd-load-late-on-both-threads-too.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a32b0f0db3f396f1c9be2fe621e77c09ec3d8e7d Mon Sep 17 00:00:00 2001
From: "Borislav Petkov (AMD)" <bp@xxxxxxxxx>
Date: Tue, 2 May 2023 19:53:50 +0200
Subject: x86/microcode/AMD: Load late on both threads too
From: Borislav Petkov (AMD) <bp@xxxxxxxxx>
commit a32b0f0db3f396f1c9be2fe621e77c09ec3d8e7d upstream.
Do the same as early loading - load on both threads.
Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230605141332.25948-1-bp@xxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/cpu/microcode/amd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -705,7 +705,7 @@ static enum ucode_state apply_microcode_
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;
}
Patches currently in stable-queue which might be from bp@xxxxxxxxx are
queue-6.4/x86-smp-remove-pointless-wmb-s-from-native_stop_other_cpus.patch
queue-6.4/x86-microcode-amd-load-late-on-both-threads-too.patch
queue-6.4/x86-smp-dont-access-non-existing-cpuid-leaf.patch
queue-6.4/x86-smp-make-stop_other_cpus-more-robust.patch
queue-6.4/x86-smp-use-dedicated-cache-line-for-mwait_play_dead.patch
