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x86/mce-inject: Reset injection struct after injection

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[ Upstream commit 7401a633c34adc7aefd3edfec60074cb0475a3e8 ]

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
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Borislav Petkov 2018-09-04 11:22:12 +02:00 committed by Greg Kroah-Hartman
parent 1190bbd468
commit ed5f6f8d4f
1 changed files with 6 additions and 0 deletions
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6
arch/x86/kernel/cpu/mcheck/mce-inject.c
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@ -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;
}