[vfio-users] [Qemu-discuss] vfio pass through only works once after reboot

[Blank Field]

Actually, you ca  rip off the GOP driver part from other GPU's ROM and glue
it to yours. So yes, you can use other vendor's ROM, but be careful with
the power part: the clocks, voltages and fan profiles.
On Sep 5, 2015 12:02 AM, "Lucas Neves" <lcneves at gmail.com> wrote:

> Actually, according to
> http://www.techpowerup.com/vgabios/index.php?did=1002-6939-- , it seems
> that my Radeon r9 285 manufactured by ASUS also comes with a BIOS that does
> not support UEFI! My video card works with OVMF, though.
>
> There are BIOS available from other manufacturers, such as Sapphire, that
> do support UEFI. Should I try those, or is that a bad idea? Would there be
> any potential benefits?
>
> Best,
> Lucas
>
> On Fri, Sep 4, 2015 at 11:51 PM José Ramón Muñoz <koalinux at gmail.com>
> wrote:
>
>>         Hi Lucas,
>>
>>         Thanks for the script, though we address that my problem is that
>> my gpu
>> doesn't have UEFI support, so there is no way to make it works with OVMF.
>>
>>         Best regards.
>>
>>         José.
>>
>> On Friday 04 September 2015 20:11:27 Lucas Neves wrote:
>> > Hi José,
>> >
>> > You can find my QEMU script in the attached file.
>> >
>> > Good luck!
>> > Lucas
>> >
>> > On Fri, Sep 4, 2015 at 7:33 PM José Ramón Muñoz <koalinux at gmail.com>
>> wrote:
>> > >         Hi Lucas,
>> > >
>> > >         Do you mind to post your qemu script? I'm having problems
>> trying
>> > >         to
>> > >
>> > > passthrough a vga through OVMF and I'd like to see more examples.
>> > >
>> > >         Thanks!
>> > >
>> > >         José.
>> > >
>> > > On Friday 04 September 2015 11:51:42 Lucas Neves wrote:
>> > > > I'm very interested in the solution to this problem as well. I pass
>> > >
>> > > through
>> > >
>> > > > a Radeon r9 285 (Tonga) to Windows.
>> > > >
>> > > > On my previous setup, with QEMU from the git emulating a Q35
>> chipset on
>> > > > SeaBIOS and a Windows 8.1 guest, the guest would work only once per
>> boot
>> > >
>> > > of
>> > >
>> > > > the host. If I soft-reset the guest or shut it down and tried to run
>> > > > QEMU
>> > > > again, the guest monitor would stay blank (although QEMU would
>> continue
>> > > > running, with no error messages). I have noticed that this problem
>> only
>> > > > occurs when using the proprietary AMD driver in the guest: running
>> on
>> > > > the
>> > > > native Windows 8.1 video driver, the guest could reboot without
>> > > > problems.
>> > > >
>> > > > This week, I decided to change the whole system, hoping that
>> something
>> > > > would fix this problem. So now I'm emulating a i440fx chipset, using
>> > >
>> > > OVMF,
>> > >
>> > > > with a fresh install of Windows 10 as guest. Things have improved:
>> now
>> > >
>> > > the
>> > >
>> > > > guest system can withstand soft reboots without problems. But
>> whenever I
>> > > > shut down the guest machine, it is still not possible to turn it on
>> > > > again
>> > > > without rebooting the host.
>> > > >
>> > > > Sorry I don't have my start script here, I can post it later if
>> > >
>> > > necessary.
>> > >
>> > > > But I inkove QEMU as a super user (sudo qemu-system-x86_64). And my
>> host
>> > >
>> > > OS
>> > >
>> > > > is Ubuntu 15.04.
>> > > >
>> > > > Thanks,
>> > > > Lucas
>> > > >
>> > > > On Thu, Sep 3, 2015 at 3:39 PM Blank Field <
>> ihatethisfield at gmail.com>
>> > >
>> > > wrote:
>> > > > > There is a special mailing list for all the vfio questions. It
>> aims to
>> > > > > replace the arch forum thread.
>> > >
>> > >
>> http://lists.nongnu.org/archive/html/qemu-discuss/2015-09/msg00003.html
>> > >
>> > > > > I couldn't manage to not screw up the formatting with G-Mail, so
>> there
>> > >
>> > > you
>> > >
>> > > > > have it as a link to archives.
>> > > > >
>> > > > > Regarding the problem - i don't remember exactly, but running
>> qemu as
>> > > > > a
>> > > > > regular user requires some more steps than just chown.
>> > > > > _______________________________________________
>> > > > > vfio-users mailing list
>> > > > > vfio-users at redhat.com
>> > > > > https://www.redhat.com/mailman/listinfo/vfio-users
>>
>>
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