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PING: [PATCH v2 0/3] add MEMORY_FAILURE event


From: zhenwei pi
Subject: PING: [PATCH v2 0/3] add MEMORY_FAILURE event
Date: Mon, 28 Sep 2020 20:01:11 +0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1

PING

On 9/22/20 5:56 PM, zhenwei pi wrote:
v1->v2:
Suggested by Peter Maydell, rename events to make them
architecture-neutral:
'PC-RAM' -> 'guest-memory'
'guest-triple-fault' -> 'guest-mce-fatal'

Suggested by Paolo, add more fields in event:
'action-required': boolean type to distinguish a guest-mce is AR/AO.
'recursive': boolean type. set true if: previous MCE in processing
              in guest, another AO MCE occurs.

v1:
Although QEMU could catch signal BUS to handle hardware memory
corrupted event, sadly, QEMU just prints a little log and try to fix
it silently.

In these patches, introduce a 'MEMORY_FAILURE' event with 4 detailed
actions of QEMU, then uplayer could know what situaction QEMU hit and
did. And further step we can do: if a host server hits a 'hypervisor-ignore'
or 'guest-mce', scheduler could migrate VM to another host; if hitting
'hypervisor-stop' or 'guest-triple-fault', scheduler could select other
healthy servers to launch VM.

Zhenwei Pi (3):
   target-i386: seperate MCIP & MCE_MASK error reason
   qapi/run-state.json: introduce memory failure event
   target-i386: post memory failure event to uplayer

  qapi/run-state.json  | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++
  target/i386/helper.c | 40 +++++++++++++++++++++++++------
  target/i386/kvm.c    |  7 +++++-
  3 files changed, 106 insertions(+), 8 deletions(-)


--
zhenwei pi



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