linux-kernel - Re: [PATCH v1 01/16] virtio: Validate queue pfn for 32bit transports

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Date:   Wed, 10 Jan 2018 13:30:52 +0200
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Peter Maydell <peter.maydell@...aro.org>
Cc:     Suzuki K Poulose <Suzuki.Poulose@....com>,
        arm-mail-list <linux-arm-kernel@...ts.infradead.org>,
        kvm-devel <kvm@...r.kernel.org>, kvmarm@...ts.cs.columbia.edu,
        Christoffer Dall <christoffer.dall@...aro.org>,
        Marc Zyngier <marc.zyngier@....com>,
        lkml - Kernel Mailing List <linux-kernel@...r.kernel.org>,
        kristina.martsenko@....com, Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Will Deacon <will.deacon@....com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Jason Wang <jasowang@...hat.com>,
        Christoffer Dall <cdall@...aro.org>
Subject: Re: [PATCH v1 01/16] virtio: Validate queue pfn for 32bit transports

On Wed, Jan 10, 2018 at 11:19:34AM +0000, Peter Maydell wrote:
> On 10 January 2018 at 11:06, Michael S. Tsirkin <mst@...hat.com> wrote:
> > For virtio-mmio? I don't seem to see that code in
> > hw/virtio/virtio-mmio.c
> > For example I still see handling for VIRTIO_MMIO_QUEUE_PFN
> > there, and no handling for VIRTIO_MMIO_QUEUE_DESC_LOW
> > and such.
> 
> Are there uses that make it worthwhile to get virtio-1
> support added to virtio-mmio, rather than just getting
> people to move over to virtio-pci instead ?
> 
> thanks
> -- PMM

I keep getting these patches (like the one that started this thread) so
I think yes. If nothing else the guest support will bit-rot without
an open-source implementation.

-- 
MST