diff options
| author | Borislav Petkov <bp@suse.de> | 2017-06-13 18:28:33 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-06-14 07:32:09 +0200 |
| commit | 86d2eac5a7045933a88c97f0453f22106bb90b54 (patch) | |
| tree | be4a27becae45b482afaf1786ee5f024ced45441 | |
| parent | 5c99881b33b460c40ff3fbe0d6d1242f54b4f2ed (diff) | |
x86/mce/mce-inject: Preset the MCE injection struct
Populate the MCE injection struct before doing initial injection so that
values which don't change have sane defaults.
Tested-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Yazen Ghannam <yazen.ghannam@amd.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/20170613162835.30750-7-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/kernel/cpu/mcheck/mce-inject.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce-inject.c b/arch/x86/kernel/cpu/mcheck/mce-inject.c index 00af8dd8fc59..231ad23b24a9 100644 --- a/arch/x86/kernel/cpu/mcheck/mce-inject.c +++ b/arch/x86/kernel/cpu/mcheck/mce-inject.c @@ -103,6 +103,13 @@ DEFINE_SIMPLE_ATTRIBUTE(misc_fops, inj_misc_get, inj_misc_set, "%llx\n"); DEFINE_SIMPLE_ATTRIBUTE(addr_fops, inj_addr_get, inj_addr_set, "%llx\n"); DEFINE_SIMPLE_ATTRIBUTE(synd_fops, inj_synd_get, inj_synd_set, "%llx\n"); +static void setup_inj_struct(struct mce *m) +{ + memset(m, 0, sizeof(struct mce)); + + m->cpuvendor = boot_cpu_data.x86_vendor; +} + /* Update fake mce registers on current CPU. */ static void inject_mce(struct mce *m) { @@ -700,6 +707,8 @@ static int __init inject_init(void) register_nmi_handler(NMI_LOCAL, mce_raise_notify, 0, "mce_notify"); mce_register_injector_chain(&inject_nb); + setup_inj_struct(&i_mce); + pr_info("Machine check injector initialized\n"); return 0; |