diff options
| author |   Borislav Petkov <bp@suse.de> | 2019-08-24 10:01:53 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2019-10-01 16:06:35 +0200 |
| commit | 811ae8ba6dca6b91a3ceccf9d40b98818cc4f400 (patch) | |
| tree | f5d4fc3dcb41a87c793f0acc4bbe17371bbef34c /arch/x86/kernel/cpu/microcode | |
| parent | x86/microcode: Update late microcode in parallel (diff) | |
| download | linux-dev-811ae8ba6dca6b91a3ceccf9d40b98818cc4f400.tar.xz linux-dev-811ae8ba6dca6b91a3ceccf9d40b98818cc4f400.zip | |
x86/microcode/intel: Issue the revision updated message only on the BSP
... in order to not pollute dmesg with a line for each updated microcode
engine.
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jon Grimm <Jon.Grimm@amd.com>
Cc: kanth.ghatraju@oracle.com
Cc: konrad.wilk@oracle.com
Cc: Mihai Carabas <mihai.carabas@oracle.com>
Cc: patrick.colp@oracle.com
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190824085341.GC16813@zn.tnic
Diffstat (limited to 'arch/x86/kernel/cpu/microcode')
| -rw-r--r-- | arch/x86/kernel/cpu/microcode/intel.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c index ce799cfe9434..6a99535d7f37 100644 --- a/arch/x86/kernel/cpu/microcode/intel.c +++ b/arch/x86/kernel/cpu/microcode/intel.c @@ -791,6 +791,7 @@ static enum ucode_state apply_microcode_intel(int cpu) { struct ucode_cpu_info *uci = ucode_cpu_info + cpu; struct cpuinfo_x86 *c = &cpu_data(cpu); + bool bsp = c->cpu_index == boot_cpu_data.cpu_index; struct microcode_intel *mc; enum ucode_state ret; static int prev_rev; @@ -836,7 +837,7 @@ static enum ucode_state apply_microcode_intel(int cpu) return UCODE_ERROR; } - if (rev != prev_rev) { + if (bsp && rev != prev_rev) { pr_info("updated to revision 0x%x, date = %04x-%02x-%02x\n", rev, mc->hdr.date & 0xffff, @@ -852,7 +853,7 @@ out: c->microcode = rev; /* Update boot_cpu_data's revision too, if we're on the BSP: */ - if (c->cpu_index == boot_cpu_data.cpu_index) + if (bsp) boot_cpu_data.microcode = rev; return ret; |