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x86/mce-inject: Reset injection struct after injection
author
Borislav Petkov
<bp@suse.de>
Tue, 4 Sep 2018 09:22:12 +0000
(11:22 +0200)
committer
Borislav Petkov
<bp@suse.de>
Fri, 21 Sep 2018 12:28:37 +0000
(14:28 +0200)
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>
Link:
https://lkml.kernel.org/r/20180905081954.10391-1-bp@alien8.de
arch/x86/kernel/cpu/mcheck/mce-inject.c
patch
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diff --git
a/arch/x86/kernel/cpu/mcheck/mce-inject.c
b/arch/x86/kernel/cpu/mcheck/mce-inject.c
index
c805a06
..
1fc424c
100644
(file)
--- 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;
}