Alex wrote:
> On Thu, Jan 6, 2022 at 10:38 AM Yann Dirson wrote:
> >
> > Alex wrote:
> > > > How is the stolen memory communicated to the driver ? That
> > > > host
> > > > physical
> > > > memory probably has to be mapped at the same guest physical
> > > > address
> > > > for
> > > > the magic t
On Thu, Jan 6, 2022 at 10:38 AM Yann Dirson wrote:
>
> Alex wrote:
> > > How is the stolen memory communicated to the driver ? That host
> > > physical
> > > memory probably has to be mapped at the same guest physical address
> > > for
> > > the magic to work, right ?
> >
> > Correct. The driver
Alex wrote:
> > How is the stolen memory communicated to the driver ? That host
> > physical
> > memory probably has to be mapped at the same guest physical address
> > for
> > the magic to work, right ?
>
> Correct. The driver reads the physical location of that memory from
> hardware registers
gt; > > > >
> > > > >
> > > > > - Mail original -
> > > > > > De: "Alex Deucher"
> > > > > > À: "Yann Dirson"
> > > > > > Cc: "Christian König" ,
> &g
t; > > > De: "Alex Deucher"
> > > > > À: "Yann Dirson"
> > > > > Cc: "Christian König" ,
> > > > > "amd-gfx list"
> > > > > Envoyé: Mardi 21 Décembre 2021 23:31:01
>
> > À: "Yann Dirson"
> > > > Cc: "Christian König" ,
> > > > "amd-gfx list"
> > > > Envoyé: Mardi 21 Décembre 2021 23:31:01
> > > > Objet: Re: Various problems trying to vga-passthrough a Renoir
> > > > iGPU to a x
-gfx list"
> > > Envoyé: Mardi 21 Décembre 2021 23:31:01
> > > Objet: Re: Various problems trying to vga-passthrough a Renoir
> > > iGPU to a xen/qubes-os hvm
> > >
> > > On Tue, Dec 21, 2021 at 5:12 PM Yann Dirson
> > > wrote:
> > &
On Tue, Dec 21, 2021 at 6:09 PM Yann Dirson wrote:
>
>
>
> - Mail original -
> > De: "Alex Deucher"
> > À: "Yann Dirson"
> > Cc: "Christian König" , "amd-gfx list"
> >
> > Envoyé: Mardi 21 Décembre 202
- Mail original -
> De: "Alex Deucher"
> À: "Yann Dirson"
> Cc: "Christian König" , "amd-gfx list"
>
> Envoyé: Mardi 21 Décembre 2021 23:31:01
> Objet: Re: Various problems trying to vga-passthrough a Renoir iGPU to a
&g
On Tue, Dec 21, 2021 at 5:12 PM Yann Dirson wrote:
>
>
> Alex wrote:
> >
> > On Sun, Dec 19, 2021 at 11:41 AM Yann Dirson wrote:
> > >
> > > Christian wrote:
> > > > Am 19.12.21 um 17:00 schrieb Yann Dirson:
> > > > > Alex wrote:
> > > > >> Thinking about this more, I think the problem might be r
Alex wrote:
>
> On Sun, Dec 19, 2021 at 11:41 AM Yann Dirson wrote:
> >
> > Christian wrote:
> > > Am 19.12.21 um 17:00 schrieb Yann Dirson:
> > > > Alex wrote:
> > > >> Thinking about this more, I think the problem might be related
> > > >> to
> > > >> CPU
> > > >> access to "VRAM". APUs don'
On Sun, Dec 19, 2021 at 11:41 AM Yann Dirson wrote:
>
> Christian wrote:
> > Am 19.12.21 um 17:00 schrieb Yann Dirson:
> > > Alex wrote:
> > >> Thinking about this more, I think the problem might be related to
> > >> CPU
> > >> access to "VRAM". APUs don't have dedicated VRAM, they use a
> > >> r
Christian wrote:
> Am 19.12.21 um 17:00 schrieb Yann Dirson:
> > Alex wrote:
> >> Thinking about this more, I think the problem might be related to
> >> CPU
> >> access to "VRAM". APUs don't have dedicated VRAM, they use a
> >> reserved
> >> carve out region at the top of system memory. For CPU a
Am 19.12.21 um 17:00 schrieb Yann Dirson:
Alex wrote:
Thinking about this more, I think the problem might be related to CPU
access to "VRAM". APUs don't have dedicated VRAM, they use a
reserved
carve out region at the top of system memory. For CPU access to this
memory, we kmap the physical ad
Alex wrote:
> Thinking about this more, I think the problem might be related to CPU
> access to "VRAM". APUs don't have dedicated VRAM, they use a
> reserved
> carve out region at the top of system memory. For CPU access to this
> memory, we kmap the physical address of the carve out region of
>
Thinking about this more, I think the problem might be related to CPU
access to "VRAM". APUs don't have dedicated VRAM, they use a reserved
carve out region at the top of system memory. For CPU access to this
memory, we kmap the physical address of the carve out region of system
memory. You'll n
On Sun, Dec 12, 2021 at 5:19 PM Yann Dirson wrote:
>
> Alex wrote:
> > On Mon, Dec 6, 2021 at 4:36 PM Yann Dirson wrote:
> > >
> > > Hi Alex,
> > >
> > > > We have not validated virtualization of our integrated GPUs. I
> > > > don't
> > > > know that it will work at all. We had done a bit of te
Alex wrote:
> On Mon, Dec 6, 2021 at 4:36 PM Yann Dirson wrote:
> >
> > Hi Alex,
> >
> > > We have not validated virtualization of our integrated GPUs. I
> > > don't
> > > know that it will work at all. We had done a bit of testing but
> > > ran
> > > into the same issues with the PSP, but never
On Wed, Dec 8, 2021 at 5:50 PM Yann Dirson wrote:
>
> Hi Alex,
>
> >
> > On Mon, Dec 6, 2021 at 4:36 PM Yann Dirson wrote:
> > >
> > > Hi Alex,
> > >
> > > > We have not validated virtualization of our integrated GPUs. I
> > > > don't
> > > > know that it will work at all. We had done a bit of
Hi Alex,
>
> On Mon, Dec 6, 2021 at 4:36 PM Yann Dirson wrote:
> >
> > Hi Alex,
> >
> > > We have not validated virtualization of our integrated GPUs. I
> > > don't
> > > know that it will work at all. We had done a bit of testing but
> > > ran
> > > into the same issues with the PSP, but neve
On Mon, Dec 6, 2021 at 4:36 PM Yann Dirson wrote:
>
> Hi Alex,
>
> > We have not validated virtualization of our integrated GPUs. I don't
> > know that it will work at all. We had done a bit of testing but ran
> > into the same issues with the PSP, but never had a chance to debug
> > further bec
Hi Alex,
> We have not validated virtualization of our integrated GPUs. I don't
> know that it will work at all. We had done a bit of testing but ran
> into the same issues with the PSP, but never had a chance to debug
> further because this feature is not productized.
...
> You need a functiona
On Sat, Nov 27, 2021 at 11:28 AM wrote:
>
> Hello,
>
> Xen passthrough of a boot GPU those days (at least in the small QubesOS world)
> is mostly tested/documented for Intel iGPUs (or I missed something).
> I've been trying to do that with a Renoir GPU (for context, the goal is
> to have a xen dom
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