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Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA
From: |
Laszlo Ersek |
Subject: |
Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA |
Date: |
Mon, 20 Jul 2015 21:06:11 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 |
Cc'ing Alex
On 07/13/15 12:15, Paolo Bonzini wrote:
>
>
> On 13/07/2015 09:32, Gerd Hoffmann wrote:
>>> and virtio-vga is only compiled on 64-bit Intel?
>>
>> There is virtio-gpu-pci ...
>>
>> Any specific reason why we need vga compatibility on !x86?
>
> I was actually thinking about 32-bit x86. :) I agree that !x86 is not
> necessary.
I disagree :)
(This is actually my more important followup to this thread; the other
message I just couldn't resist sending.)
Gerd recently contributed virtio-vga support to OvmfPkg/QemuVideoDxe:
https://github.com/tianocore/edk2/commit/94210dc9
That support depends on vga compat. All fine.
What's probably not obvious is that I had ported
PcAtChipsetPkg/PciHostBridgeDxe to ArmVirtPkg -- which drives Alex's
generic PCIe host bridge, exposed on qemu-system-(arm|aarch64) -M virt
-- and included OvmfPkg/QemuVideoDxe in the ArmVirtQemu.dsc build too.
That means you can currently stick a -device VGA into -M virt, and it
will work. Since OvmfPkg/QemuVideoDxe recognizes virtio-vga (see edk2
94210dc9 again), and the driver is included by ArmVirtQemu.dsc, I think
it would be probably useful to build the device model for arm/aarch64
targets too.
See also QEMU commit 332261de2b (together with its parent commits).
Thanks
Laszlo
- [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA, Paolo Bonzini, 2015/07/11
- Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA, Gerd Hoffmann, 2015/07/13
- Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA,
Laszlo Ersek <=
- Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA, Alexander Graf, 2015/07/21
- Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA, Laszlo Ersek, 2015/07/21
- Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA, Marc Zyngier, 2015/07/21
- Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA, Gerd Hoffmann, 2015/07/25
- Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA, Laszlo Ersek, 2015/07/26
- Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA, Peter Maydell, 2015/07/26
- Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA, Peter Maydell, 2015/07/26
- Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA, Laszlo Ersek, 2015/07/26
- Re: [Qemu-devel] selecting VIRTIO_INPUT and VIRTIO_VGA, Marc Zyngier, 2015/07/27