On Thursday 29 August 2019 03:51 PM, Greg Kurz wrote:
> On Wed, 14 Aug 2019 11:40:50 +0530
> Aravinda Prasad <aravi...@linux.vnet.ibm.com> wrote:
>
>> This patch set adds support for FWNMI in PowerKVM guests.
>>
>> System errors such as SLB multihit and memory errors
>> that cannot be corrected by hardware is passed on to
>> the kernel for handling by raising machine check
>> exception (an NMI). Upon such machine check exceptions,
>> if the address in error belongs to guest then KVM
>> invokes guests' 0x200 interrupt vector if the guest
>> is not FWNMI capable. For FWNMI capable guest
>> KVM passes the control to QEMU by exiting the guest.
>>
>> This patch series adds functionality to QEMU to pass
>> on such machine check exceptions to the FWNMI capable
>> guest kernel by building an error log and invoking
>> the guest registered machine check handling routine.
>>
>> The KVM changes are now part of the upstream kernel
>> (commit e20bbd3d). This series contain QEMU changes.
>>
>> Change Log v11:
>> - Moved FWNMI SPAPR cap defaults to 4.2 class option
>> - Fixed issues with handling fwnmi KVM capability
>>
>
> Hi Aravinda,
>
> I'm afraid this series needs rebasing. It doesn't apply
> cleanly on current ppc-for-4.2 (SHA1 b1e8156743).
This was based on the latest 4.2 at the time of posting (14th Aug).
Meanwhile may be due to changes to 4.2 it is not applying cleanly. I
will rebase it to the latest 4.2 and post it again.
Regards,
Aravinda
>
> Cheers,
>
> --
> Greg
>
>> Change Log v10:
>> - Reshuffled the patch sequence + minor fixes
>>
>> Change Log v9:
>> - Fixed kvm cap and spapr cap issues
>>
>> Change Log v8:
>> - Added functionality to check FWNMI capability during
>> VM migration
>> ---
>>
>> Aravinda Prasad (6):
>> Wrapper function to wait on condition for the main loop mutex
>> ppc: spapr: Introduce FWNMI capability
>> target/ppc: Handle NMI guest exit
>> target/ppc: Build rtas error log upon an MCE
>> ppc: spapr: Handle "ibm,nmi-register" and "ibm,nmi-interlock" RTAS
>> calls
>> migration: Include migration support for machine check handling
>>
>>
>> cpus.c | 5 +
>> hw/ppc/spapr.c | 78 +++++++++++++
>> hw/ppc/spapr_caps.c | 29 +++++
>> hw/ppc/spapr_events.c | 268
>> ++++++++++++++++++++++++++++++++++++++++++++++
>> hw/ppc/spapr_rtas.c | 78 +++++++++++++
>> include/hw/ppc/spapr.h | 25 ++++
>> include/qemu/main-loop.h | 8 +
>> target/ppc/cpu.h | 1
>> target/ppc/kvm.c | 38 +++++++
>> target/ppc/kvm_ppc.h | 13 ++
>> target/ppc/trace-events | 1
>> 11 files changed, 542 insertions(+), 2 deletions(-)
>>
>> --
>> Signature
>
>
--
Regards,
Aravinda