[Xen-devel] [Patch] Mask Expansion ROM Enable bit

[Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>]

Hi,

I got the following unnecessary warning in qemu log,
when I created a guest with pass-through device.

Overlapped to device[00:05.0][Region:0][Address:f2060000h][Size:
00020000h]
pt_bar_mapping_one: Warning: ptdev[00:04.0][Region:6][Address:f2040001h]
[Size:00020000h] is overlapped.

It is a Expansion ROM Base Address Register,
so the last one bits doesn't mean the address space.
If we check overlap address space of all devices,
we shoud avoid the bit.
This patch masks non-address-bits of BAR.

Signed-off-by: Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>

Best Regards,

Akio Takebe

Attachment: mask_bar_addr_space.patch
Description: Binary data

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