[Xen-devel] [PATCH 0/2] VT-d: pci and source-id cleanup

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

This patchset does cleanup on pci code for VT-d and interrupt remapping 
source-id code, and also fixes an issue of MSI source-id.

The patches are as follows:

[1/2 PATCH]: VT-d pci code cleanup
        moves the pci code from iommu.c to pci.c. Instead of setup pci 
hierarchy in array bus2bridge in iommu_context_mapping, use scan_pci_devices 
once to add all existed PCI devices in system to alldevs_list and setup pci 
hierarchy in array bus2bridge. In addition, implement find_upstream_bridge to 
find the upstream PCIe-to-PCI/PCIX bridge or PCI legacy bridge for a PCI 
device, therefore it's cleanly to handle context map/unmap for PCI device, even 
for source-id setting.

[2/2 PATCH]: fix MSI source-id of interrupt remapping
        fixes an issue of MSI source-id. Currently MSI source-ids are all set 
device bdf. It's incorrect for PCI (not PCIe) devices. The patch set correct 
requester-ids of MSI to source-id. And also, wrap functions to clean ioapic 
source-id.


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

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