Re: [Qemu-devel] [Qemu-ppc] [Bug 1674925] Re: Qemu PPC64 kvm no display if --device virtio-gpu-pci is selected

[luigiburdo]

Hi Cédric,

i have the 4.11 rc1 . on fedora 25 ppc 64 on both machine Qoriq and on
G5 Quad.

On the 2.8 this issue isnt present but
I did the test o Qoriq  e5500 a book3e processor and on 2.8 if i made:

qemu-system-ppc64 --enable-kvm the true result is:
qemu-system-ppc64: Unable to find CPU definition: host

on qemu 2.9 rc1

./qemu-system-ppc64 --enable-kvm i have :
qemu-system-ppc64: KVM and IRQ_XICS capability must be present for in-kernel 
XICS

On Qoriq if i pass the -cpu e500 (normal thing) all is working right
qemu 2.9rc1 all boot and so and so.

On G5 the -cpu variable dont fix the issue.

I can build a new kernel release , usually mine dont have xics enabled
because G5 dont have that feature, if needed i can enable it for
testing.


Hope my english is understandable.

ciao

Luigi

________________________________
Da: Qemu-ppc <address@hidden> per conto di Cédric Le Goater <address@hidden>
Inviato: mercoledì 22 marzo 2017 18.29
A: Thomas Huth; Bug 1674925; address@hidden
Cc: address@hidden
Oggetto: Re: [Qemu-ppc] [Qemu-devel] [Bug 1674925] Re: Qemu PPC64 kvm no 
display if --device virtio-gpu-pci is selected

On 03/22/2017 03:15 PM, Thomas Huth wrote:
> On 22.03.2017 14:35, luigiburdo wrote:
>> Hi Thomas with 2.9 rc1 i have this with --enable-kvm
>>
>> emu-system-ppc64 --enable-kvm
>> qemu-system-ppc64: KVM and IRQ_XICS capability must be present for in-kernel 
>> XICS
>>
>> and the qemu dont run.
>
> Does it exit, or just hang afterwards? Was this with or without --device
> virtio-gpu-pci option? Do you get any output if you run QEMU with
> "-nographic" instead?

I guess this is an issue with the host kernel. Which one are you running
?

C.

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https://bugs.launchpad.net/bugs/1674925

Title:
  Qemu PPC64 kvm no display if  --device virtio-gpu-pci is selected

Status in QEMU:
  New

Bug description:
  Hi,
  i did many tests on qemu 2.8 on my BE machines and i found an issue that i 
think was need to be reported

  Test Machines BE 970MP

  if i setup qemu with

  qemu-system-ppc64 -M 1024 --display sdl(or gtk),gl=on --device virtio-
  gpu-pci,virgl --enable-kvm and so and so

  result is doubled window one is vga other is virtio-gpu-pci without
  any start of the VM . pratically i dont have any output of openbios
  and on the virtual serial output

  the same issue i found is if i select:
  qemu-system-ppc64 -M 1024 --display gtk(or sdl) --device virtio-gpu-pci 
--enable-kvm and so and so

  
  i had been try to change all the -M types of all kind of pseries without any 
positive result.

  Ciao 
  Luigi

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