On Wed, 10 May 2017 22:34:00 +0500 Roman Mamedov <r...@romanrm.net> wrote:
> On Tue, 9 May 2017 16:21:59 -0600 > Alex Williamson <alex.william...@redhat.com> wrote: > > > http://awilliam.github.io/presentations/KVM-Forum-2014/#/ > > > > On the "Issues:" slide, the line about drivers not participating > > (vgacon)... that's the problem. Watch the video, also see: > > > > http://vfio.blogspot.com/2014/08/whats-deal-with-vga-arbitration.html > > > > The host needs to be running a driver that participates in VGA > > arbitration or else the first access to VGA space by the guest is going > > to switch VGA routing to the assigned device and the driver running the > > host graphics will never switch it back. An even better option is to > > use a UEFI capable graphics card with an OVMF guest and drop the x-vga > > option. Thanks, > > Thanks for the hint! > > I was able to replace the host's boot video card with an old Radeon X300SE -- > that one supports high-resolution KMS-based console with the 'radeon' driver, > and unlike the legacy VGA console, the KMS one keeps working fine even when a > VFIO guest is launched. Hooray! Good news, and yep, I'd expect any device specific console driver to switch away from using generic VGA region access to the device. Thanks, Alex _______________________________________________ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users
