Messages in this thread Patch in this message | | | From | Ashok Raj <> | Subject | [PATCH] x86/microcode: Print previous version of microcode after reload | Date | Mon, 29 Aug 2022 18:10:30 +0000 |
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It will be useful to print both old and new versions of microcode after a reload is complete.
Signed-off-by: Ashok Raj <ashok.raj@intel.com> --- arch/x86/kernel/cpu/microcode/core.c | 5 +++-- 1 file 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 @@ static int __reload_late(void *info) */ 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; } -- 2.32.0
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