xen_pt: Fix passthrough of device with ROM.
commit794798e36eda77802ce7cc7d7d6b1c65751e8a76
authorAnthony PERARD <anthony.perard@citrix.com>
Fri, 10 Jan 2014 15:56:33 +0000 (10 15:56 +0000)
committerStefano Stabellini <stefano.stabellini@eu.citrix.com>
Fri, 17 Jan 2014 15:29:33 +0000 (17 15:29 +0000)
treee164f8ee4eeb6af337a841ba4a467875f6d094e1
parentfc33b9004c49f21f8188df5c4cd079a9a3d08de8
xen_pt: Fix passthrough of device with ROM.

QEMU does not need and should not allocate memory for the ROM of a
passthrough PCI device. So this patch initialize the particular region
like any other PCI BAR of a passthrough device.

When a guest will access the ROM, Xen will take care of the IO, QEMU
will not be involved in it.

Xen set a limit of memory available for each guest, allocating memory
for a ROM can hit this limit.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reported-and-Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
hw/xen/xen_pt.c