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From: Andrew Cooper <andrew.cooper3@citrix.com>
To: speck@linutronix.de
Subject: [MODERATED] Re: EPT/IOMMU shattering on SNB
Date: Wed, 16 Oct 2019 22:07:27 +0100	[thread overview]
Message-ID: <32583abf-9f4f-7d78-094d-e9b03eaa2d5b@citrix.com> (raw)
In-Reply-To: <7fa1bd72-93d0-0196-01ea-66d12604604d@redhat.com>

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On 15/10/2019 20:38, speck for Paolo Bonzini wrote:
> On 14/10/19 14:50, speck for Andrew Cooper wrote:
>> Avoiding sharing the EPT and IOMMU tables does avoid the problem, but
>> that is to be expected as the shattering activity now has no interaction
>> with the IOMMU.
>>
>> Has anyone experimented with the above scenario, and if so, how has
>> testing gone?
> Nope, sorry.  KVM and VFIO do not share page tables.

Thanks.  That's helpful to know.  I'll try and follow up directly with
folk at Intel.

~Andrew


      reply	other threads:[~2019-10-16 21:07 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-14 12:50 [MODERATED] EPT/IOMMU shattering on SNB Andrew Cooper
2019-10-15 19:38 ` [MODERATED] " Paolo Bonzini
2019-10-16 21:07   ` Andrew Cooper [this message]

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