Messages in this thread Patch in this message | | | From | Borislav Petkov <> | Subject | [PATCH] x86/mce-inject: Reset struct after injection | Date | Wed, 5 Sep 2018 10:19:54 +0200 |
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From: Borislav Petkov <bp@suse.de>
Clear the MCE struct which is used for collecting the injection details after injection.
Also, populate it with more details from the machine.
Signed-off-by: Borislav Petkov <bp@suse.de> --- arch/x86/kernel/cpu/mcheck/mce-inject.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/arch/x86/kernel/cpu/mcheck/mce-inject.c b/arch/x86/kernel/cpu/mcheck/mce-inject.c index c805a06e14c3..1fc424c40a31 100644 --- a/arch/x86/kernel/cpu/mcheck/mce-inject.c +++ b/arch/x86/kernel/cpu/mcheck/mce-inject.c @@ -108,6 +108,9 @@ static void setup_inj_struct(struct mce *m) memset(m, 0, sizeof(struct mce)); m->cpuvendor = boot_cpu_data.x86_vendor; + m->time = ktime_get_real_seconds(); + m->cpuid = cpuid_eax(1); + m->microcode = boot_cpu_data.microcode; } /* Update fake mce registers on current CPU. */ @@ -576,6 +579,9 @@ static int inj_bank_set(void *data, u64 val) m->bank = val; do_inject(); + /* Reset injection struct */ + setup_inj_struct(&i_mce); + return 0; } -- 2.17.0.582.gccdcbd54c
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