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authorAravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>2015-05-06 06:58:56 -0500
committerBorislav Petkov <bp@suse.de>2015-05-07 10:23:32 +0200
commit24fd78a81f6d3fe7f7a440c8629f9c52cd5f830e (patch)
tree9c32cc0f0aa92425ebf780a9d93e3517b2f36ea7 /arch/x86/include/asm/hw_irq.h
parent7559e13fb4abe7880dfaf985d6a1630ca90a67ce (diff)
x86/mce/amd: Introduce deferred error interrupt handler
Deferred errors indicate error conditions that were not corrected, but require no action from S/W (or action is optional).These errors provide info about a latent UC MCE that can occur when a poisoned data is consumed by the processor. Processors that report these errors can be configured to generate APIC interrupts to notify OS about the error. Provide an interrupt handler in this patch so that OS can catch these errors as and when they happen. Currently, we simply log the errors and exit the handler as S/W action is not mandated. Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com> Cc: Tony Luck <tony.luck@intel.com> Cc: x86-ml <x86@kernel.org> Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/1430913538-1415-5-git-send-email-Aravind.Gopalakrishnan@amd.com Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'arch/x86/include/asm/hw_irq.h')
-rw-r--r--arch/x86/include/asm/hw_irq.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index e9571ddabc4f..f71e489d7537 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -73,6 +73,7 @@ extern asmlinkage void invalidate_interrupt31(void);
extern asmlinkage void irq_move_cleanup_interrupt(void);
extern asmlinkage void reboot_interrupt(void);
extern asmlinkage void threshold_interrupt(void);
+extern asmlinkage void deferred_error_interrupt(void);
extern asmlinkage void call_function_interrupt(void);
extern asmlinkage void call_function_single_interrupt(void);
@@ -87,6 +88,7 @@ extern void trace_spurious_interrupt(void);
extern void trace_thermal_interrupt(void);
extern void trace_reschedule_interrupt(void);
extern void trace_threshold_interrupt(void);
+extern void trace_deferred_error_interrupt(void);
extern void trace_call_function_interrupt(void);
extern void trace_call_function_single_interrupt(void);
#define trace_irq_move_cleanup_interrupt irq_move_cleanup_interrupt