Re: [gentoo-user] [Sort of solved] Recommended pseudo-hardware for QEMU guest machine?

waltdnes@××××××××.org wrote:

> On Tue, Dec 22, 2015 at 05:43:17AM +0100, wabenbau@×××××.com wrote
>
> > Have you installed x11-drivers/xf86-video-modesetting on the guest?
>
>   Cannot be done on my machines.  On 2 physical machines, and on the
> Gentoo guest, I get...

You don't have to install it on the physical machines but only on the
guests.
 
> > emerge -pv xf86-video-modesetting
> >
> > These are the packages that would be merged, in order:
> >
> > Calculating dependencies... done!
> > [ebuild  N     ] x11-drivers/xf86-video-modesetting-0.9.0::gentoo
> > 298 KiB [blocks B      ] x11-drivers/xf86-video-modesetting
> > ("x11-drivers/xf86-video-modesetting" is blocking
> > x11-base/xorg-server-1.17.4)
> >
> > Total: 1 package (1 new), Size of downloads: 298 KiB
> > Conflict: 1 block (1 unsatisfied)
> >
> >  * Error: The above package list contains packages which cannot be
> >  * installed at the same time on the same system.
>
>   On the guest, I unmerged xorg-server and tried emerging
> xf86-video-modesetting.  The result was that it would've pulled in
> xorg-server, which would again have blocked xf86-video-modesetting.
> Wierd.

That's indeed strange. As I said, I have no experiences with gentoo
as guest OS.

Maybe it will help to recompile xorg-server without the xorg USE flag
on the guest machine. When you can connect via ssh then you can revert
it easily when it fails.

And use emerge --backtrack=999 :-)
 
> > Have you compiled the guest kernel with CONFIG_DRM_CIRRUS_QEMU?
> >
> > If yes, then I guess that you don't need xf86-video-cirrus at all.
> >
> > > With "-vga
> > > std" X doesn't start up at all.
> >
> > You probably need to compile the guest kernel with CONFIG_DRM_BOCHS
> > for "-vga std".
> >
> > >   Any suggestions for improvement?
> >
> > There is also a kernel option for a KMS enabled DRM driver for the
> > VMware SVGA virtual hardware (CONFIG_DRM_VMWGFX). I think that the
> > performance of this driver is better than the performance of the
> > cirrus driver.
>
>   As I mentioned earlier vmware, cirrus, and bochs all ticked off in
> "make menuconfig".  Now that I have something working, I think I'll

These options are depending on CONFIG_HAS_IOMEM, CONFIG_DRM and 
CONFIG_PCI. You must activate all of these options too.

> make a copy of the 10-gig guest disk image before any further
> tweaking that might render it inoperative again.

Backups are always a good idea.
 
> >   I think that you also need x11-drivers/xf86-video-vmware installed
> > on the guest if you want to use "-vga vmware".
>
>   I've tried that earlier, when things weren't working.  Maybe it'll
> work this time.

Good luck.

--
Regards
wabe