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(-) -- 2.31.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#76247): https://edk2.groups.io/g/devel/message/76247 Mute This Topic: https://groups.io/mt/83414086/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
