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Groups > linux.kernel > #1206250

[PATCH 00/13] x86/RAS queue for 4.3

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From: Borislav Petkov <bp@suse.de>

Hi Ingo,

here's the reworked RAS queue. 1-8 are the ones which Tony already sent
you. They, esp. 5/13 and the ones leading up to it deal with printk'ing
from #MC context. We're basically switching to lockless gen_pool for
that.

Patch 9 is a fix for correctable errors polling (CMCI) where the CMCI
interrupt doesn't get reenabled. This has been this way since 3.15 thus
the stable tag. You might want to queue it to x86/urgent, if possible.

The rest is small cleanups and moving the MCE injector to arch/x86/ras/.
This will be even more useful later when we start cleaning up the error
decoding paths and need a quick way to inject errors.

Please queue for 4.3.

Thanks.

Ashok Raj (2):
  x86/mce: Remove unused function declarations
  x86/mce: Clear Local MCE opt-in before kexec

Borislav Petkov (6):
  x86/mce: Reuse one of the u16 padding fields in struct mce
  x86/mce: Kill drain_mcelog_buffer()
  RAS: Add a menuconfig option with descriptive text
  x86/mce: Rename rcu_dereference_check_mce() to mce_log_get_idx_check()
  x86/mce: Add a wrapper around mce_log() for injection
  x86/ras: Move AMD MCE injector to arch/x86/ras/

Chen, Gong (4):
  x86/mce: Provide a lockless memory pool to save error records
  x86/mce: Don't use percpu workqueues
  x86/mce: Remove the MCE ring for Action Optional errors
  x86/mce: Avoid potential deadlock due to printk() in MCE context

Xie XiuQi (1):
  x86/mce: Reenable CMCI banks when swiching back to interrupt mode

 arch/x86/Kconfig                             |   1 +
 arch/x86/Makefile                            |   2 +
 arch/x86/include/asm/mce.h                   |   8 +-
 arch/x86/include/uapi/asm/mce.h              |   3 +-
 arch/x86/kernel/cpu/mcheck/Makefile          |   2 +-
 arch/x86/kernel/cpu/mcheck/mce-apei.c        |   1 -
 arch/x86/kernel/cpu/mcheck/mce-genpool.c     |  99 ++++++++++++
 arch/x86/kernel/cpu/mcheck/mce-internal.h    |  14 ++
 arch/x86/kernel/cpu/mcheck/mce.c             | 231 +++++++++++++--------------
 arch/x86/kernel/cpu/mcheck/mce_intel.c       |  61 ++++---
 arch/x86/kernel/process.c                    |   2 +
 arch/x86/kernel/smp.c                        |   2 +
 arch/x86/ras/Kconfig                         |  11 ++
 arch/x86/ras/Makefile                        |   2 +
 {drivers/edac => arch/x86/ras}/mce_amd_inj.c |   6 +-
 drivers/edac/Kconfig                         |  10 --
 drivers/edac/Makefile                        |   1 -
 drivers/ras/Kconfig                          |  37 ++++-
 18 files changed, 329 insertions(+), 164 deletions(-)
 create mode 100644 arch/x86/kernel/cpu/mcheck/mce-genpool.c
 create mode 100644 arch/x86/ras/Kconfig
 create mode 100644 arch/x86/ras/Makefile
 rename {drivers/edac => arch/x86/ras}/mce_amd_inj.c (98%)

-- 
2.5.0.rc2.28.g6003e7f

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[PATCH 00/13] x86/RAS queue for 4.3 Borislav Petkov <bp@alien8.de> - 2015-08-12 18:40 +0200
  [PATCH 07/13] x86/mce: Remove unused function declarations Borislav Petkov <bp@alien8.de> - 2015-08-12 18:40 +0200
    [tip:ras/core] x86/mce: Remove unused function declarations tip-bot for Ashok Raj <tipbot@zytor.com> - 2015-08-13 12:50 +0200
  [PATCH 05/13] x86/mce: Avoid potential deadlock due to printk() in MCE context Borislav Petkov <bp@alien8.de> - 2015-08-12 18:40 +0200
    [tip:ras/core] x86/mce: Avoid potential deadlock due to printk()   in MCE context "tip-bot for Chen, Gong" <tipbot@zytor.com> - 2015-08-13 12:50 +0200
  [PATCH 08/13] x86/mce: Clear Local MCE opt-in before kexec Borislav Petkov <bp@alien8.de> - 2015-08-12 18:40 +0200
    [tip:ras/core] x86/mce: Clear Local MCE opt-in before kexec tip-bot for Ashok Raj <tipbot@zytor.com> - 2015-08-13 12:50 +0200
  [PATCH 12/13] x86/mce: Add a wrapper around mce_log() for injection Borislav Petkov <bp@alien8.de> - 2015-08-12 18:40 +0200
    [tip:ras/core] x86/mce: Add a wrapper around mce_log()   for injection tip-bot for Borislav Petkov <tipbot@zytor.com> - 2015-08-13 13:00 +0200
  [PATCH 03/13] x86/mce: Don't use percpu workqueues Borislav Petkov <bp@alien8.de> - 2015-08-12 18:40 +0200
    [tip:ras/core] x86/mce: Don't use percpu workqueues "tip-bot for Chen, Gong" <tipbot@zytor.com> - 2015-08-13 12:50 +0200
  [PATCH 11/13] x86/mce: Rename rcu_dereference_check_mce() to mce_log_get_idx_check() Borislav Petkov <bp@alien8.de> - 2015-08-12 18:40 +0200
    [tip:ras/core] x86/mce: Rename rcu_dereference_check_mce()   to mce_log_get_idx_check() tip-bot for Borislav Petkov <tipbot@zytor.com> - 2015-08-13 13:00 +0200
  [PATCH 04/13] x86/mce: Remove the MCE ring for Action Optional errors Borislav Petkov <bp@alien8.de> - 2015-08-12 18:40 +0200
    [tip:ras/core] x86/mce:   Remove the MCE ring for Action Optional errors "tip-bot for Chen, Gong" <tipbot@zytor.com> - 2015-08-13 12:50 +0200
  [PATCH 13/13] x86/ras: Move AMD MCE injector to arch/x86/ras/ Borislav Petkov <bp@alien8.de> - 2015-08-12 18:40 +0200
    [tip:ras/core] x86/ras: Move AMD MCE injector to arch/x86/ras/ tip-bot for Borislav Petkov <tipbot@zytor.com> - 2015-08-13 13:00 +0200
  [PATCH 10/13] RAS: Add a menuconfig option with descriptive text Borislav Petkov <bp@alien8.de> - 2015-08-12 18:40 +0200
    [tip:ras/core] RAS: Add a menuconfig option with descriptive text tip-bot for Borislav Petkov <tipbot@zytor.com> - 2015-08-13 13:00 +0200

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