[Pull][SRU Zesty][v2] Add support for RAS features on ARM64

[Manoj Iyer]

Stefan,

The RAS patch series was submitted previously as SRU to Zesty & to 
Artful, this patch series was fix-committed to Artful and is currently 
pending SRU to zesty. Tracked in bugs:

https://launchpad.net/bugs/1696570https://launchpad.net/bugs/1698448
https://launchpadnet/bugs/1696852

This patch was regression tested on AMD64, Power8 and 4 different ARM64 
systems. Details of tests and test kernel can be found in the bug:  
https://launchpad.net/bugs/1696570 (and in 
https://launchpad.net/bugs/1706141). The test kernel based on Ubuntu 
Zesty tag Ubuntu-4.10.0-29.33 with RAS patches and EDAC_GHES enablement 
config patch was tested by me as well as Qualcomm for functionality, 
and test results were posted to the bug report as comments by me and 
Tyler Baicar.

Also, we have been testing the early incarnation of the RAS patches 
along with the EDAC_GHES support for quite sometime in the periodic 
Xenial UOSE builds we did for QDF2400 systems. We therefore have high 
degree of confidence that the RAS patches and the EDAC_GHES support 
works as expected on QDF2400 systems, and poses a low degree of 
regression risk on other architectures.

The RAS patches have had some time to bake in Artful, and we have 
provided additional testing on QDF2400 and other ARM64 systems, and 
regression tested on AMD64 and Power8. Please reconsider this patch 
series for SRU in Zesty.

Thanks
Manoj Iyer

On Fri, Jul 21, 2017 at 3:09 AM, Stefan Bader 
<stefan.bader at canonical.com> wrote:
> On 18.07.2017 17:11, Manoj Iyer wrote:
>>  The following pull request adds RAS support to ARM64. The patches 
>> were tested on
>>  QDF2400 and UEFI based AMD64 systems using mce-test testsuite.
>> 
>>  Patches track bugs:
>>  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1696570
>>  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1698448
>>  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1696852
>> 
>>  I had previously submitted similar patches based on linux-next, but 
>> these
>>  patches here are cherry-picked and backported from the linus's 
>> tree. Please
>>  review and consider for SRU.
> 
> This is (still) a big change across subsystems to add feature 
> support. I saw
> Seth picked things up for Artful. So my preference would be to give 
> that at
> least some time to settle before moving everything into Zesty, too.
> 
> -Stefan
> 
>> 
>>  The following changes since commit 
>> f4f26263ff6a66c2012e9417a56e1b01a95c45d0:
>> 
>>    UBUNTU: Ubuntu-4.10.0-28.32 (2017-06-29 11:24:09 +0200)
>> 
>>  are available in the git repository at:
>> 
>>    git://git.launchpad.net/~centriq-team/+git/linux-arm64ras
>> 
>>  for you to fetch changes up to 
>> 619d132d16d9dfd3f3afa6c205828c4d495e2b53:
>> 
>>    arm64: hwpoison: add VM_FAULT_HWPOISON[_LARGE] handling 
>> (2017-07-11 09:20:53
>>  -0500)
>> 
>>  ----------------------------------------------------------------
>>  Arnd Bergmann (1):
>>        ras: mark stub functions as 'inline'
>> 
>>  Jonathan (Zhixiong) Zhang (3):
>>        acpi: apei: panic OS with fatal error status block
>>        arm64: kconfig: allow support for memory failure handling
>>        arm64: hwpoison: add VM_FAULT_HWPOISON[_LARGE] handling
>> 
>>  Manoj Iyer (1):
>>        UBUNTU: [Config] CONFIG_ACPI_APEI_SEA=y
>> 
>>  Punit Agrawal (2):
>>        arm64: mm: Update perf accounting to handle poison faults
>>        arm64: hugetlb: Fix huge_pte_offset to return poisoned page 
>> table entries
>> 
>>  Tyler Baicar (11):
>>        acpi: apei: read ack upon ghes record consumption
>>        ras: acpi/apei: cper: add support for generic data v3 
>> structure
>>        cper: add timestamp print to CPER status printing
>>        efi: parse ARM processor error
>>        arm64: exception: handle Synchronous External Abort
>>        acpi: apei: handle SEA notification type for ARMv8
>>        efi: print unrecognized CPER section
>>        ras: acpi / apei: generate trace event for unrecognized CPER 
>> section
>>        trace, ras: add ARM processor error trace event
>>        arm/arm64: KVM: add guest SEA support
>>        acpi: apei: check for pending errors when probing GHES entries
>> 
>>   arch/arm/include/asm/kvm_arm.h | 10 ++
>>   arch/arm/include/asm/system_misc.h | 5 +
>>   arch/arm/kvm/mmu.c | 36 ++++-
>>   arch/arm64/Kconfig | 3 +
>>   arch/arm64/include/asm/esr.h | 1 +
>>   arch/arm64/include/asm/kvm_arm.h | 10 ++
>>   arch/arm64/include/asm/pgtable.h | 2 +-
>>   arch/arm64/include/asm/system_misc.h | 2 +
>>   arch/arm64/mm/fault.c | 170 +++++++++++++++++-------
>>   arch/arm64/mm/hugetlbpage.c | 29 ++---
>>   debian.master/config/config.common.ubuntu | 1 +
>>   drivers/acpi/apei/Kconfig | 15 +++
>>   drivers/acpi/apei/ghes.c | 209 +++++++++++++++++++++++++-----
>>   drivers/acpi/apei/hest.c | 7 +-
>>   drivers/firmware/efi/cper.c | 204 ++++++++++++++++++++++++++---
>>   drivers/ras/ras.c | 25 ++++
>>   include/acpi/ghes.h | 48 ++++++-
>>   include/linux/cper.h | 54 ++++++++
>>   include/linux/ras.h | 19 +++
>>   include/linux/uuid.h | 9 ++
>>   include/ras/ras_event.h | 90 +++++++++++++
>>   21 files changed, 831 insertions(+), 118 deletions(-)
>> 
>> 
>> 
> 
> 
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