From: Aravinda Prasad <aravinda@linux.vnet.ibm.com>
To: Daniel Axtens <dja@axtens.net>
Cc: David Gibson <david@gibson.dropbear.id.au>,
kvm@vger.kernel.org, michaele@au1.ibm.com,
mahesh@linux.vnet.ibm.com, agraf@suse.de,
kvm-ppc@vger.kernel.org, linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] KVM: PPC: Exit guest upon fatal machine check exception
Date: Thu, 12 Nov 2015 22:52:06 +0530 [thread overview]
Message-ID: <5644CABE.3010905@linux.vnet.ibm.com> (raw)
In-Reply-To: <87bnazizkp.fsf@gamma.ozlabs.ibm.com>
On Thursday 12 November 2015 10:28 AM, Daniel Axtens wrote:
>
>> So, IIUC. Once the qemu pieces are in place as well it shouldn't
>> change this behaviour: KVM will exit to qemu, qemu will log the error
>> information (new), then reinject the MC to the guest which can still
>> handle it as you describe above.
>
> Ah, that makes *much* more sense now! Thanks for the explanation: I
> don't really follow qemu development.
>
>>
>> But, there could be a problem if you have a new kernel with an old
>> qemu, in that case qemu might not understand the new exit type and
>> treat it as a fatal error, even though the guest could actually cope
>> with it.
>>
>> Aravinda, do we need to change this so that qemu has to explicitly
>> enable the new NMI behaviour? Or have I missed something that will
>> make that case work already.
>
> <puts on CAPI hat>Yeah, it would be good not to break this.</hat>
I am not familiar with CAPI. Does this affect CAPI?
Regards,
Aravinda
>
> Regards,
> Daniel
>
>
>> --
>> David Gibson | I'll have my music baroque, and my code
>> david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
>> | _way_ _around_!
>> http://www.ozlabs.org/~dgibson
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@lists.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev
>
--
Regards,
Aravinda
next prev parent reply other threads:[~2015-11-12 17:22 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-11 16:58 [PATCH] KVM: PPC: Exit guest upon fatal machine check exception Aravinda Prasad
2015-11-12 2:24 ` Daniel Axtens
2015-11-12 3:38 ` David Gibson
2015-11-12 4:32 ` Aravinda Prasad
2015-11-12 4:43 ` David Gibson
2015-11-12 17:52 ` Aravinda Prasad
2015-11-13 1:50 ` David Gibson
2015-11-13 6:26 ` Aravinda Prasad
2015-11-13 7:38 ` Thomas Huth
2015-11-13 11:25 ` Aravinda Prasad
2015-11-12 4:58 ` Daniel Axtens
2015-11-12 17:22 ` Aravinda Prasad [this message]
2015-11-12 21:37 ` Daniel Axtens
2015-11-13 4:58 ` Aravinda Prasad
2015-11-12 3:34 ` David Gibson
2015-11-12 5:18 ` Aravinda Prasad
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