On Wed, Feb 22, 2017 at 01:53:54AM +0100, Rafael J. Wysocki wrote:
> [+ Boris]
>
> On Tuesday, February 21, 2017 04:45:23 PM Tyler Baicar wrote:
> > From: "Jonathan (Zhixiong) Zhang" <zjzhang@xxxxxxxxxxxxxx>
> >
> > If ACPI_APEI and MEMORY_FAILURE is configured, select
> > ACPI_APEI_MEMORY_FAILURE. This enables memory failure recovery
> > when such memory failure is reported through ACPI APEI. APEI
> > (ACPI Platform Error Interfaces) provides a means for the
> > platform to convey error information to the kernel.
> >
> > Declare ARCH_SUPPORTS_MEMORY_FAILURE, as arm64 does support
> > memory failure recovery attempt.
> >
> > Signed-off-by: Jonathan (Zhixiong) Zhang <zjzhang@xxxxxxxxxxxxxx>
> > Signed-off-by: Tyler Baicar <tbaicar@xxxxxxxxxxxxxx>
> > ---
> > arch/arm64/Kconfig | 1 +
> > drivers/acpi/apei/Kconfig | 1 +
> > 2 files changed, 2 insertions(+)
> >
> > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> > index 1117421..61e0bb0 100644
> > --- a/arch/arm64/Kconfig
> > +++ b/arch/arm64/Kconfig
> > @@ -15,6 +15,7 @@ config ARM64
> > select ARCH_HAS_SG_CHAIN
> > select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
> > select ARCH_USE_CMPXCHG_LOCKREF
> > + select ARCH_SUPPORTS_MEMORY_FAILURE
> > select ARCH_SUPPORTS_ATOMIC_RMW
> > select ARCH_SUPPORTS_NUMA_BALANCING
> > select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
> > diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig
> > index b0140c8..6d9a812 100644
> > --- a/drivers/acpi/apei/Kconfig
> > +++ b/drivers/acpi/apei/Kconfig
> > @@ -9,6 +9,7 @@ config ACPI_APEI
> > select MISC_FILESYSTEMS
> > select PSTORE
> > select UEFI_CPER
> > + select ACPI_APEI_MEMORY_FAILURE if MEMORY_FAILURE
Yap, looks ok to me: we're basically enabling
ghes_handle_memory_failure() to queue a memory address at fault for
possibly offlining on arm64. And since the arch supports it...
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
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