XenAPI: Add PCI Assignment Support
Get series with b4
b4 am [email protected]Versions newest first
- v1 Latest3 patches 0 repliesNew
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/3 | XenAPI: Add Physical PCI Device (PPCI) Supporttools/ tools/ tools/ +1 more | +334 | 0 replies | |
| 2/3 | XenAPI: Add Direct PCI Assignment (DPCI) Supporttools/ tools/ tools/ +4 more | +435 | 0 replies | |
| 3/3 | XenAPI: Example Scripts for PCI Assignment | +0 | 0 replies |
Reviews trailers per patch
No Reviewed-by, Acked-by or Tested-by trailers for v1 yet.
Cover letter [PATCH][0/3] XenAPI: Add PCI Assignment Support
Hi all,
This series of patches is an attempt to support pci pass-through device assignment via xen-api.
There already is 'PCI_bus' parameter in VM class to specify pci device to be assigned, but it doesn't work now. Another problem is that pci device hotplug/coldplug cannot be supported with the current model.
So I decided to implement fully-functional pci assignment support to xen-api. Below is the basic design of new class models.
PPCI: Represents physical pci devices belonging to the host.
ppci instances are automatically generated by xend and contain domain:bus:slot:func number, vendor name, device name and other information.
DPCI: Represents direct pci devices. dpci instances work as connectors
between a vm and a physical pci device. Creation of a dpci device will result in attachment of the pci device and deletion will result in detachment.
+------------+ * 1 +----------+
| VM |----------| host |
+------------+ +----------+
1 | | 1
| |
* | | *
+-------------+ 0,1 1 +----------+
| DPCI |---------| PPCI |
+-------------+ +----------+BTW I'm aware that there is xen-api community project going on. If there's any decision made about discussing/merging procedure of xen-api related patches, please let me know.
Technical suggestions and comments are welcome, of course.
Regards,
-----------------------
Yosuke Iwamatsu
NEC Corporation