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[Xen-devel][PATCH] VT-d: Fix PCI-X device assignment
| To: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel][PATCH] VT-d: Fix PCI-X device assignment |
| From: | "Han, Weidong" <weidong.han@xxxxxxxxx> |
| Date: | Fri, 19 Dec 2008 10:35:18 +0800 |
| Accept-language: | en-US |
| Acceptlanguage: | en-US |
| Cc: | "Kay, Allen M" <allen.m.kay@xxxxxxxxx> |
| Delivery-date: | Thu, 18 Dec 2008 18:35:52 -0800 |
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| Thread-index: | Aclhgm5YsExOq+6bRdajI4cEq0j38w== |
| Thread-topic: | [Xen-devel][PATCH] VT-d: Fix PCI-X device assignment |
When assign PCI device, current code just map its bridge and its secondary bus number and devfn 0. It doesn't work for PCI-x device assignment, because the request may be the source-id in the original PCI-X transaction or the source-id provided by the bridge. It needs to map the device itself, and its upstream bridges till PCIe-to-PCI/PCI-x bridge. In addition, add description for DEV_TYPE_PCIe_BRIDGE and DEV_TYPE_PCI_BRIDGE for understandability. Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>
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