x86/microcode: Update the new microcode revision unconditionally

Browse source

Handle the case where microcode gets loaded on the BSP's hyperthread
sibling first and the boot_cpu_data's microcode revision doesn't get
updated because of early exit due to the siblings sharing a microcode
engine.

For that, simply write the updated revision on all CPUs unconditionally.

Signed-off-by: Filippo Sironi <sironi@amazon.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: prarit@redhat.com
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1533050970-14385-1-git-send-email-sironi@amazon.de

...

This commit is contained in:

Filippo Sironi 2018-07-31 17:29:30 +02:00 • committed by Thomas Gleixner

parent 370a132bb2

commit 8da38ebaad

2 changed files with 21 additions and 14 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

22

arch/x86/kernel/cpu/microcode/amd.c

View file

13

arch/x86/kernel/cpu/microcode/intel.c

View file