On 6/9/21 7:05 AM, Gerd Hoffmann wrote:
> virtio-mmio support in ovmf seems to be the unloved child. The final
> virto-1.0 specification was published five(!) years ago, nevertheless
> the mmio transport doesn't support it yet ...
>
> Some people argue that it has been obsoleted by virtio-pci. Which is a
> valid argument. But IMHO isn't a good reason to just let virtio-mmio
> bitrot. We should either remove it from the tree, or support it.
>
> So, opening the discussion with this little patch series. It does the
> latter and adds virtio 1.0 support. For the mmio transport the
> difference between 0.9.5 and 1.0 is rather small (when compared to the
> pci transport), it is just a bunch of new registers for the changed
> virtio queue initialization. So the patch series is small too ...
>
> take care,
> Gerd
>
> Gerd Hoffmann (2):
> OvmfPkg/Virtio10: Add virtio-mmio 1.0 defines
> OvmfPkg/VirtioMmioDeviceLib: Add virtio 1.0 support.
>
> OvmfPkg/Include/IndustryStandard/Virtio10.h | 12 +++++++
> .../VirtioMmioDeviceLib/VirtioMmioDevice.h | 1 +
> .../VirtioMmioDeviceLib/VirtioMmioDevice.c | 17 +++++++---
> .../VirtioMmioDeviceFunctions.c | 31 +++++++++++++++++--
> 4 files changed, 54 insertions(+), 7 deletions(-)
Series:
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
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