[virt-tools-list] vga passthrough

[Martin Wolf]

hello,

im using kvm with virt-manager and i really like the interface you provide.
but i would like to know if there is a way to supply a romfile to a 
passed through
device like shown here.

http://www.linux-kvm.org/page/VGA_device_assignment
*VBIOS ROM access*
To re-run the POST procedures of the assigned adapter inside the guest, 
the proper VBIOS ROM image has to be used. However, when passing through 
the primary adapter of the host, Linux provides only access to the 
shadowed version of the VBIOS which may differ from the pre-POST version 
(due to modification applied during POST). This has be been observed 
with NVDIA Quadro adapters. A workaround is to retrieve the VBIOS from 
the adapter while it is in secondary mode and use this saved image 
(-device pci-assign,...,romfile=...). But even that may fail, either due 
to problems of the host chipset or BIOS (host kernel complains about 
unmappable ROM BAR).

thank you in advance

-- 
Adiumentum GmbH
Gf. Martin Wolf
Banderbacherstraße 76
90513 Zirndorf

0911 / 9601470
mwolf at adiumentum.com

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