diff options
| author | Ashok Raj <[email protected]> | 2022-08-29 18:10:30 +0000 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2022-09-02 08:01:58 +0200 |
| commit | 7fce8d6eccbc31a561d07c79f359ad09f0424347 (patch) | |
| tree | d0898be7afa129a121b2f548cc48cec662cea0b6 /arch/x86/kernel/cpu/microcode/core.c | |
| parent | 8c61eafd22d7207039bff85c6e1d386f15abd17e (diff) | |
x86/microcode: Print previous version of microcode after reload
Print both old and new versions of microcode after a reload is complete
because knowing the previous microcode version is sometimes important
from a debugging perspective.
[ bp: Massage commit message. ]
Signed-off-by: Ashok Raj <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Acked-by: Tony Luck <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'arch/x86/kernel/cpu/microcode/core.c')
| -rw-r--r-- | arch/x86/kernel/cpu/microcode/core.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c index ad57e0e4d674..6a41cee242f6 100644 --- a/arch/x86/kernel/cpu/microcode/core.c +++ b/arch/x86/kernel/cpu/microcode/core.c @@ -491,7 +491,7 @@ wait_for_siblings: */ static int microcode_reload_late(void) { - int ret; + int old = boot_cpu_data.microcode, ret; pr_err("Attempting late microcode loading - it is dangerous and taints the kernel.\n"); pr_err("You should switch to early loading, if possible.\n"); @@ -503,7 +503,8 @@ static int microcode_reload_late(void) if (ret == 0) microcode_check(); - pr_info("Reload completed, microcode revision: 0x%x\n", boot_cpu_data.microcode); + pr_info("Reload completed, microcode revision: 0x%x -> 0x%x\n", + old, boot_cpu_data.microcode); return ret; } |