From: Aravind Gopalakrishnan Date: Wed, 6 May 2015 11:58:55 +0000 (-0500) Subject: x86/mce: Add support for deferred errors on AMD X-Git-Tag: omap-for-v4.2/fixes-rc1^2~170^2^2~10^2~4^2~5 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7559e13fb4abe7880dfaf985d6a1630ca90a67ce;p=pandora-kernel.git x86/mce: Add support for deferred errors on AMD Deferred errors indicate error conditions that were not corrected, but those errors have not been consumed yet. They require no action from S/W (or action is optional). These errors provide info about a latent uncorrectable MCE that can occur when a poisoned data is consumed by the processor. Newer AMD processors can generate deferred errors and can be configured to generate APIC interrupts on such events. SUCCOR stands for S/W UnCorrectable error COntainment and Recovery. It indicates support for data poisoning in HW and deferred error interrupts. Add new bitfield to mce_vendor_flags for this. We use this to verify presence of deferred error interrupts before we enable them in mce_amd.c While at it, clarify comments in mce_vendor_flags to provide an indication of usages of the bitfields. Signed-off-by: Aravind Gopalakrishnan Cc: Tony Luck Cc: x86-ml Cc: linux-edac Link: http://lkml.kernel.org/r/1430913538-1415-4-git-send-email-Aravind.Gopalakrishnan@amd.com [ beef up commit message, do CPUID(8000_0007) only once. ] Signed-off-by: Borislav Petkov --- Reading git-diff-tree failed