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Re: Summary of LPC guest MSI discussion in Santa Fe

From Will Deacon <will.deacon@arm.com>
Newsgroups linux.kernel
Subject Re: Summary of LPC guest MSI discussion in Santa Fe
Date 2016-11-08 20:20 +0100
Message-ID <sBk65-57F-1@gated-at.bofh.it> (permalink)
References (1 earlier) <szDZf-50p-1@gated-at.bofh.it> <sB4E1-3lS-3@gated-at.bofh.it> <sBfzs-24a-29@gated-at.bofh.it> <sBiQG-40g-11@gated-at.bofh.it> <sBjWq-53v-41@gated-at.bofh.it>
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On Tue, Nov 08, 2016 at 02:02:39PM -0500, Don Dutile wrote:
> On 11/08/2016 12:54 PM, Will Deacon wrote:
> >A first step would be making all this opt-in, and only supporting GICv3
> >ITS for now.
> You're trying to support a config that is < GICv3 and no ITS ? ...
> That would be the equiv. of x86 pre-intr-remap, and that's why allow_unsafe_interrupts
> hook was created ... to enable devel/kick-the-tires.

Yup, that's exactly what I was envisaging. For systems that can't do
passthrough safely, we'll always have to throw a devel switch.

Will

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[RFC 0/8] KVM PCIe/MSI passthrough on ARM/ARM64 (Alt II) Eric Auger <eric.auger@redhat.com> - 2016-11-03 22:50 +0100
  [RFC 2/8] iommu/iova: fix __alloc_and_insert_iova_range Eric Auger <eric.auger@redhat.com> - 2016-11-03 22:50 +0100
  [RFC 4/8] iommu: Add a list of iommu_reserved_region in iommu_domain Eric Auger <eric.auger@redhat.com> - 2016-11-03 22:50 +0100
  [RFC 5/8] vfio/type1: Introduce RESV_IOVA_RANGE capability Eric Auger <eric.auger@redhat.com> - 2016-11-03 22:50 +0100
  [RFC 3/8] iommu/dma: Allow MSI-only cookies Eric Auger <eric.auger@redhat.com> - 2016-11-03 22:50 +0100
  [RFC 7/8] iommu/vt-d: Implement add_reserved_regions callback Eric Auger <eric.auger@redhat.com> - 2016-11-03 22:50 +0100
  [RFC 1/8] vfio: fix vfio_info_cap_add/shift Eric Auger <eric.auger@redhat.com> - 2016-11-03 22:50 +0100
  [RFC 6/8] iommu: Handle the list of reserved regions Eric Auger <eric.auger@redhat.com> - 2016-11-03 22:50 +0100
  Re: [RFC 0/8] KVM PCIe/MSI passthrough on ARM/ARM64 (Alt II) Alex Williamson <alex.williamson@redhat.com> - 2016-11-04 05:10 +0100
    Summary of LPC guest MSI discussion in Santa Fe (was: Re: [RFC 0/8]  KVM PCIe/MSI passthrough on ARM/ARM64 (Alt II)) Will Deacon <will.deacon@arm.com> - 2016-11-08 03:50 +0100
      Re: Summary of LPC guest MSI discussion in Santa Fe Auger Eric <eric.auger@redhat.com> - 2016-11-08 15:30 +0100
        Re: Summary of LPC guest MSI discussion in Santa Fe Will Deacon <will.deacon@arm.com> - 2016-11-08 19:00 +0100
          Re: Summary of LPC guest MSI discussion in Santa Fe Don Dutile <ddutile@redhat.com> - 2016-11-08 20:10 +0100
            Re: Summary of LPC guest MSI discussion in Santa Fe Will Deacon <will.deacon@arm.com> - 2016-11-08 20:20 +0100
            Re: Summary of LPC guest MSI discussion in Santa Fe Auger Eric <eric.auger@redhat.com> - 2016-11-09 08:50 +0100
      Re: Summary of LPC guest MSI discussion in Santa Fe Don Dutile <ddutile@redhat.com> - 2016-11-08 17:10 +0100
      Re: Summary of LPC guest MSI discussion in Santa Fe (was: Re: [RFC  0/8] KVM PCIe/MSI passthrough on ARM/ARM64 (Alt II)) Christoffer Dall <christoffer.dall@linaro.org> - 2016-11-08 21:30 +0100
        Re: Summary of LPC guest MSI discussion in Santa Fe (was: Re: [RFC  0/8] KVM PCIe/MSI passthrough on ARM/ARM64 (Alt II)) Alex Williamson <alex.williamson@redhat.com> - 2016-11-09 00:40 +0100
          Re: Summary of LPC guest MSI discussion in Santa Fe Don Dutile <ddutile@redhat.com> - 2016-11-09 04:00 +0100
            Re: Summary of LPC guest MSI discussion in Santa Fe Will Deacon <will.deacon@arm.com> - 2016-11-09 18:10 +0100
              Re: Summary of LPC guest MSI discussion in Santa Fe Don Dutile <ddutile@redhat.com> - 2016-11-09 20:00 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Christoffer Dall <christoffer.dall@linaro.org> - 2016-11-09 20:30 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Alex Williamson <alex.williamson@redhat.com> - 2016-11-09 21:10 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Joerg Roedel <joro@8bytes.org> - 2016-11-10 15:50 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Alex Williamson <alex.williamson@redhat.com> - 2016-11-10 18:10 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Will Deacon <will.deacon@arm.com> - 2016-11-09 21:40 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Alex Williamson <alex.williamson@redhat.com> - 2016-11-09 23:20 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Will Deacon <will.deacon@arm.com> - 2016-11-09 23:30 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Alex Williamson <alex.williamson@redhat.com> - 2016-11-10 00:30 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Will Deacon <will.deacon@arm.com> - 2016-11-10 00:40 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Alex Williamson <alex.williamson@redhat.com> - 2016-11-10 01:10 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Auger Eric <eric.auger@redhat.com> - 2016-11-10 01:20 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Alex Williamson <alex.williamson@redhat.com> - 2016-11-10 02:00 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Will Deacon <will.deacon@arm.com> - 2016-11-10 03:10 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Auger Eric <eric.auger@redhat.com> - 2016-11-10 12:20 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Alex Williamson <alex.williamson@redhat.com> - 2016-11-10 18:50 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Joerg Roedel <joro@8bytes.org> - 2016-11-11 12:20 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Alex Williamson <alex.williamson@redhat.com> - 2016-11-11 17:00 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Alex Williamson <alex.williamson@redhat.com> - 2016-11-11 17:10 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Don Dutile <ddutile@redhat.com> - 2016-11-11 17:30 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Don Dutile <ddutile@redhat.com> - 2016-11-11 17:10 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Joerg Roedel <joro@8bytes.org> - 2016-11-10 16:00 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Robin Murphy <robin.murphy@arm.com> - 2016-11-09 21:20 +0100
                Re: Summary of LPC guest MSI discussion in Santa Fe Joerg Roedel <joro@8bytes.org> - 2016-11-10 16:30 +0100

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