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Re: [Qemu-devel] [PATCH v2 2/3] vfio/display: add xres + yres properties

From: Gerd Hoffmann
Subject: Re: [Qemu-devel] [PATCH v2 2/3] vfio/display: add xres + yres properties
Date: Thu, 21 Feb 2019 08:46:43 +0100
User-agent: NeoMutt/20180716


> > +    DEFINE_PROP_UINT32("xres", VFIOPCIDevice, display_xres, 0),
> > +    DEFINE_PROP_UINT32("yres", VFIOPCIDevice, display_yres, 0),
> This is actually quite fun, I started my VM with arbitrary numbers and
> the Windows GUI honored it every time.  Probably very useful for
> playing with odd screen sizes.  I also tried to break it using
> 1000000x1000000, but the display came up as 1920x1200, the maximum
> resolution GVT-g supports for this type.  I don't see that QEMU is
> bounding this though, do we depend on the mdev device to ignore it if
> we pass values it cannot support?

There is a check in vfio_display_edid_update().


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