[Xen-devel] [VTD][PATCH] Change xc_assign_device()

["Han, Weidong" <weidong.han@xxxxxxxxx>]

Currently we assign devices with VT-d in Xend, this raises two issues:
1) assign devices regardless of they are hidden by pciback or not. If
the device is not hidden, it results in the device doesn't work in Dom0;
2) device is assigned one by one, if assign multiple devices, some
devices may have been assigned when problem happens, it results in
assigned devices don't work in Dom0. I think Xend is not a good place to
assign devices. This patch adds a parameter to xc_assign_device(), let
it just do check in Xend whether the devices can be assigned or not, and
move real device assignment to qemu. 

Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>

xc_assign_device.patch
Description: xc_assign_device.patch

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