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x86/RAS: Add SMCA support to AMD Error Injector 

Use SMCA MSRs when writing to MCA_{STATUS,ADDR,MISC} and
MCA_DE{STAT,ADDR} when injecting Deferred Errors on SMCA platforms.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
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>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1462971509-3856-8-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Yazen Ghannam 2016-05-11 14:58:29 +02:00 committed by Ingo Molnar
parent a348ed83d9
commit 754a923059
1 changed files with 25 additions and 6 deletions
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31
arch/x86/ras/mce_amd_inj.c
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@ -290,14 +290,33 @@ static void do_inject(void)
wrmsr_on_cpu(cpu, MSR_IA32_MCG_STATUS, wrmsr_on_cpu(cpu, MSR_IA32_MCG_STATUS,
(u32)mcg_status, (u32)(mcg_status >> 32)); (u32)mcg_status, (u32)(mcg_status >> 32));
wrmsr_on_cpu(cpu, MSR_IA32_MCx_STATUS(b), if (boot_cpu_has(X86_FEATURE_SMCA)) {
(u32)i_mce.status, (u32)(i_mce.status >> 32)); if (inj_type == DFR_INT_INJ) {
wrmsr_on_cpu(cpu, MSR_AMD64_SMCA_MCx_DESTAT(b),
(u32)i_mce.status, (u32)(i_mce.status >> 32));
wrmsr_on_cpu(cpu, MSR_IA32_MCx_ADDR(b), wrmsr_on_cpu(cpu, MSR_AMD64_SMCA_MCx_DEADDR(b),
(u32)i_mce.addr, (u32)(i_mce.addr >> 32)); (u32)i_mce.addr, (u32)(i_mce.addr >> 32));
} else {
wrmsr_on_cpu(cpu, MSR_AMD64_SMCA_MCx_STATUS(b),
(u32)i_mce.status, (u32)(i_mce.status >> 32));
wrmsr_on_cpu(cpu, MSR_IA32_MCx_MISC(b), wrmsr_on_cpu(cpu, MSR_AMD64_SMCA_MCx_ADDR(b),
(u32)i_mce.misc, (u32)(i_mce.misc >> 32)); (u32)i_mce.addr, (u32)(i_mce.addr >> 32));
}
wrmsr_on_cpu(cpu, MSR_AMD64_SMCA_MCx_MISC(b),
(u32)i_mce.misc, (u32)(i_mce.misc >> 32));
} else {
wrmsr_on_cpu(cpu, MSR_IA32_MCx_STATUS(b),
(u32)i_mce.status, (u32)(i_mce.status >> 32));
wrmsr_on_cpu(cpu, MSR_IA32_MCx_ADDR(b),
(u32)i_mce.addr, (u32)(i_mce.addr >> 32));
wrmsr_on_cpu(cpu, MSR_IA32_MCx_MISC(b),
(u32)i_mce.misc, (u32)(i_mce.misc >> 32));
}
toggle_hw_mce_inject(cpu, false); toggle_hw_mce_inject(cpu, false);