Thanks for the update. Now the usb tablet and keyboard are the only two usb devices on aarch64, so I want to eliminate the "qemu-xhci" controller.
I even think the situation that something more lightweight VMM instead of QEMU may not support any USB controller, then virtio-input support in UEFI is necessary. So if I want to implement this feature, can you give me some advice? I see there are several keyboards in edk2, VirtualKeyboardDxe/VirtualKeyboard.c looks more simple than usbkbd, can it be used as an example for reference? Laszlo Ersek <ler...@redhat.com> 于2021年2月23日周二 下午10:47写道： > > On 02/23/21 09:48, Zhu Yijun wrote: > > Hi all, > > I boot vm with the virtio keyboard on aarch64. It looks UEFI lacks > > support for the virtio keyboard, so I can't do any keyboard input > > before the linux kernel driver loads, i.e. edit the grub boot menu. Is > > there any plan to support it? > > Not on my side. > > My team discussed virtio-input's relevance for ArmVirtQemu in September > 2016. > > We decided not to bother about it, because: > > (1) XHCI was virtualization-friendly, both performance-wise and > configuration-wise (unlike EHCI), > > (2) QEMU and libvirt were going to gain (... or had just gained ...) > XHCI support, on aarch64 / "virt". > > > So today, just use a "qemu-xhci" controller in your domain config > please, in combination with a USB keyboard. (If you define a new aarch64 > domain with libvirt, this should happen out of the box for you.) > > ArmVirtQemu includes all the edk2 drivers necessary for driving those > devices, and ArmVirtQemu's PlatformBootManagerLib instance will connect > the USB keyboard automatically. There shouldn't be a problem when typing > in "grub". > > Thanks > Laszlo > > > I find UsbKeyboardDevice attach on UsbIO which implements its > > protocol interface structure(such as UsbGetInterfaceDescriptor, > > UsbAsyncInterruptTransfer) defined by UEFI spec, but virtio not. So is > > there some way to implement similar interfaces? > > > > Best regards, > > Cheng Mao > > > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#72153): https://edk2.groups.io/g/devel/message/72153 Mute This Topic: https://groups.io/mt/80852197/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
