[ { "EventCode": "0x8", "Counter": "0,1,2,3", "UMask": "0x1", "EventName": "DTLB_LOAD_MISSES.ANY", "SampleAfterValue": "200000", "BriefDescription": "DTLB load misses" }, { "EventCode": "0x8", "Counter": "0,1,2,3", "UMask": "0x20", "EventName": "DTLB_LOAD_MISSES.PDE_MISS", "SampleAfterValue": "200000", "BriefDescription": "DTLB load miss caused by low part of address" }, { "EventCode": "0x8", "Counter": "0,1,2,3", "UMask": "0x10", "EventName": "DTLB_LOAD_MISSES.STLB_HIT", "SampleAfterValue": "2000000", "BriefDescription": "DTLB second level hit" }, { "EventCode": "0x8", "Counter": "0,1,2,3", "UMask": "0x2", "EventName": "DTLB_LOAD_MISSES.WALK_COMPLETED", "SampleAfterValue": "200000", "BriefDescription": "DTLB load miss page walks complete" }, { "EventCode": "0x8", "Counter": "0,1,2,3", "UMask": "0x4", "EventName": "DTLB_LOAD_MISSES.WALK_CYCLES", "SampleAfterValue": "200000", "BriefDescription": "DTLB load miss page walk cycles" }, { "EventCode": "0x49", "Counter": "0,1,2,3", "UMask": "0x1", "EventName": "DTLB_MISSES.ANY", "SampleAfterValue": "200000", "BriefDescription": "DTLB misses" }, { "EventCode": "0x49", "Counter": "0,1,2,3", "UMask": "0x80", "EventName": "DTLB_MISSES.LARGE_WALK_COMPLETED", "SampleAfterValue": "200000", "BriefDescription": "DTLB miss large page walks" }, { "EventCode": "0x49", "Counter": "0,1,2,3", "UMask": "0x10", "EventName": "DTLB_MISSES.STLB_HIT", "SampleAfterValue": "200000", "BriefDescription": "DTLB first level misses but second level hit" }, { "EventCode": "0x49", "Counter": "0,1,2,3", "UMask": "0x2", "EventName": "DTLB_MISSES.WALK_COMPLETED", "SampleAfterValue": "200000", "BriefDescription": "DTLB miss page walks" }, { "EventCode": "0x49", "Counter": "0,1,2,3", "UMask": "0x4", "EventName": "DTLB_MISSES.WALK_CYCLES", "SampleAfterValue": "2000000", "BriefDescription": "DTLB miss page walk cycles" }, { "EventCode": "0x4F", "Counter": "0,1,2,3", "UMask": "0x10", "EventName": "EPT.WALK_CYCLES", "SampleAfterValue": "2000000", "BriefDescription": "Extended Page Table walk cycles" }, { "EventCode": "0xAE", "Counter": "0,1,2,3", "UMask": "0x1", "EventName": "ITLB_FLUSH", "SampleAfterValue": "2000000", "BriefDescription": "ITLB flushes" }, { "PEBS": "1", "EventCode": "0xC8", "Counter": "0,1,2,3", "UMask": "0x20", "EventName": "ITLB_MISS_RETIRED", "SampleAfterValue": "200000", "BriefDescription": "Retired instructions that missed the ITLB (Precise Event)" }, { "EventCode": "0x85", "Counter": "0,1,2,3", "UMask": "0x1", "EventName": "ITLB_MISSES.ANY", "SampleAfterValue": "200000", "BriefDescription": "ITLB miss" }, { "EventCode": "0x85", "Counter": "0,1,2,3", "UMask": "0x2", "EventName": "ITLB_MISSES.WALK_COMPLETED", "SampleAfterValue": "200000", "BriefDescription": "ITLB miss page walks" }, { "EventCode": "0x85", "Counter": "0,1,2,3", "UMask": "0x4", "EventName": "ITLB_MISSES.WALK_CYCLES", "SampleAfterValue": "2000000", "BriefDescription": "ITLB miss page walk cycles" }, { "PEBS": "1", "EventCode": "0xCB", "Counter": "0,1,2,3", "UMask": "0x80", "EventName": "MEM_LOAD_RETIRED.DTLB_MISS", "SampleAfterValue": "200000", "BriefDescription": "Retired loads that miss the DTLB (Precise Event)" }, { "PEBS": "1", "EventCode": "0xC", "Counter": "0,1,2,3", "UMask": "0x1", "EventName": "MEM_STORE_RETIRED.DTLB_MISS", "SampleAfterValue": "200000", "BriefDescription": "Retired stores that miss the DTLB (Precise Event)" } ]/tr>mode:
authorJiri Kosina <jkosina@suse.cz>2017-01-27 22:25:52 +0000
committerIngo Molnar <mingo@kernel.org>2017-01-28 09:18:56 +0100
commitbf29bddf0417a4783da3b24e8c9e017ac649326f (patch)
tree54a05a4883b73f80e4e1d8c4b15750aa01c39932 /sound/hda/ext
parent883af14e67e8b8702b5560aa64c888c0cd0bd66c (diff)
x86/efi: Always map the first physical page into the EFI pagetables
Commit: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") stopped creating 1:1 mappings for all RAM, when running in native 64-bit mode. It turns out though that there are 64-bit EFI implementations in the wild (this particular problem has been reported on a Lenovo Yoga 710-11IKB), which still make use of the first physical page for their own private use, even though they explicitly mark it EFI_CONVENTIONAL_MEMORY in the memory map. In case there is no mapping for this particular frame in the EFI pagetables, as soon as firmware tries to make use of it, a triple fault occurs and the system reboots (in case of the Yoga 710-11IKB this is very early during bootup). Fix that by always mapping the first page of physical memory into the EFI pagetables. We're free to hand this page to the BIOS, as trim_bios_range() will reserve the first page and isolate it away from memory allocators anyway. Note that just reverting 129766708 alone is not enough on v4.9-rc1+ to fix the regression on affected hardware, as this commit: ab72a27da ("x86/efi: Consolidate region mapping logic") later made the first physical frame not to be mapped anyway. Reported-by: Hanka Pavlikova <hanka@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Laura Abbott <labbott@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vojtech Pavlik <vojtech@ucw.cz> Cc: Waiman Long <waiman.long@hpe.com> Cc: linux-efi@vger.kernel.org Cc: stable@kernel.org # v4.8+ Fixes: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") Link: http://lkml.kernel.org/r/20170127222552.22336-1-matt@codeblueprint.co.uk [ Tidied up the changelog and the comment. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/hda/ext')