tree 992ab178174f6c780c50401ddfc5661ddba162fb
parent 971ca22f041b8a1e67314a777caf3ce6f2832034
author Corvin Köhne <corvin.koehne@gmail.com> 1724852608 +0200
committer Cédric Le Goater <clg@redhat.com> 1726562275 +0200

vfio/igd: correctly calculate stolen memory size for gen 9 and later

We have to update the calculation of the stolen memory size because
we've seen devices using values of 0xf0 and above for the graphics mode
select field. The new calculation was taken from the linux kernel [1].

[1] https://github.com/torvalds/linux/blob/7c626ce4bae1ac14f60076d00eafe71af30450ba/arch/x86/kernel/early-quirks.c#L455-L460

Signed-off-by: Corvin Köhne <c.koehne@beckhoff.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>