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Re: [RFC 0/2] arm-smmu-v3 tlbi-on-map option

From Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Newsgroups linux.kernel
Subject Re: [RFC 0/2] arm-smmu-v3 tlbi-on-map option
Date 2017-07-13 11:30 +0200
Message-ID <u2IBA-3Pg-17@gated-at.bofh.it> (permalink)
References <u1ma6-We-29@gated-at.bofh.it> <u2u5A-2Sc-15@gated-at.bofh.it> <u2xZv-5w6-7@gated-at.bofh.it>
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On 12/07/17 23:07, Michael S. Tsirkin wrote:
[...]
> I think using hardware support for nesting is the right final
> solution. It will take some time though. Given this, what should
> we do meanwhile?
> 
> Assuming that's the final destination, a simple quirk like this
> seems to be preferable to virtio-iommu which we'll never be
> able to offload to hardware.

That's not entirely true. virtio-iommu will have an extension for hardware
nesting support. It was presented in my initial proposal, and I've made
significant progress since then.

Thanks,
Jean

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Thread

[RFC 0/2] arm-smmu-v3 tlbi-on-map option Eric Auger <eric.auger@redhat.com> - 2017-07-09 17:20 +0200
  Re: [RFC 0/2] arm-smmu-v3 tlbi-on-map option Will Deacon <will.deacon@arm.com> - 2017-07-12 20:00 +0200
    Re: [RFC 0/2] arm-smmu-v3 tlbi-on-map option "Michael S. Tsirkin" <mst@redhat.com> - 2017-07-13 00:10 +0200
      Re: [RFC 0/2] arm-smmu-v3 tlbi-on-map option Jean-Philippe Brucker <jean-philippe.brucker@arm.com> - 2017-07-13 11:30 +0200
        Re: [RFC 0/2] arm-smmu-v3 tlbi-on-map option "Michael S. Tsirkin" <mst@redhat.com> - 2017-07-13 19:50 +0200
          Re: [RFC 0/2] arm-smmu-v3 tlbi-on-map option Jean-Philippe Brucker <jean-philippe.brucker@arm.com> - 2017-07-13 21:20 +0200
            Re: [RFC 0/2] arm-smmu-v3 tlbi-on-map option "Michael S. Tsirkin" <mst@redhat.com> - 2017-07-13 22:40 +0200

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