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Re: [Qemu-devel] [RFC] virtio-mmio: implement modern (v2) personality (v
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [RFC] virtio-mmio: implement modern (v2) personality (virtio-1) |
Date: |
Fri, 2 Aug 2019 10:20:17 +0100 |
On Fri, 2 Aug 2019 at 01:26, Laszlo Ersek <address@hidden> wrote:
> But it's extra work, not entirely risk-free (regressions), and I can't
> tell if someone out there still uses virtio-mmio (despite me thinking
> that would be unreasonable). I wouldn't like to see more work sunk into
> it either way :)
The main reasons I still see people using virtio-mmio for
the 'virt' board are:
* still using old but working command lines
* newer setups that were put together working from older tutorials
that recommended virtio-mmio because they predated virtio-pci
support being widespread
* using older (eg distro) kernels -- for 32-bit kernels in
particular it was a while before the virtio-pci support
got built in the default configs I think, and then longer
again until those got into stable distro releases
I wouldn't be surprised if some of those applied also to
via-OVMF boot setups as well as direct kernel boot. So it
depends a bit what your tolerance for breaking existing
user setups is.
thanks
-- PMM