Re: add GPU support to qemu-aarch64

[Sanjeev Kumar]

Hey peter,
Thanks for the response.
We specifically need vexpress-a15 for our usecase. Forget about PCI, is there 
any way to get better graphics, increase graphics framerate? Without bringing 
GPU pci into picture


> On 18 Jul 2024, at 5:47 PM, Peter Maydell <peter.maydell@linaro.org> wrote:
> 
> On Thu, 18 Jul 2024 at 12:33, Sanjeev Kumar <reachsanjeev7@gmail.com> wrote:
>> 
>> Hi,
>> I am trying to passthrough GPU to qemu-system-aarch64le. why i need to do 
>> this is, the graphics running in OS hosted on qemu-system-aarch64le is very 
>> less framerate. As there is no PCI support, when i add "-device 
>> vfio-pci,host=01:00.0,x-vga=on" to the qemu boot arguments, i am seeing
>> "qemu-system-aarch64: -device vfio-pci,host=01:00.0,x-vga=on: No 'PCI' bus 
>> found for device 'vfio-pci'"
>> 
>> machine is vexpress-a15, cpu is cortex-a15
> 
> The vexpress-a15 machine type does not support PCI. Therefore
> you cannot add PCI cards to it. If you want PCI, you'll need to
> use a different machine type. We usually recommend the "virt"
> machine if you don't care about the specifics of the guest machine
> (e.g. the common "I just want to run Linux" usecase).
> 
> thanks
> -- PMM