[Xen-devel] [PATCH] disallow duplicate pci device strings in guest config file

["Cui, Dexuan" <dexuan.cui@xxxxxxxxx>]

When we specify duplicate pci device strings in guest config file, like 
pci=['01:00.0', '01:00.0'], or  pci=['01:00.0', '0000:01:00.0'], or  
pci=['01:00.0', '0000:01:00.0@7'],
xend doesn't detect this case and passes the pci string to ioemu and ioemu 
invokes register_real_device() twice for the same physical device and this 
could cause unexpected behavior.

The patch detects this case and makes the domain construction fail.

Signed-off-by: Dexuan Cui <dexuan.cui@xxxxxxxxx>

Attachment: disallow_duplicate_pci_strings.patch
Description: disallow_duplicate_pci_strings.patch

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