Re: [Kimchi-devel] [PATCH v8 0/4] Host device passthrough: Summary

Apply failed. On 7/21/2014 5:36 PM, Zhou Zheng Sheng wrote: > Hi, > > This patch series is to enable Kimchi to assign hos devices directly to > a VM, thus greately improve VM performance. Currently we support assigning > PCI device, USB device and SCSI LUN. For example, we can assign an NIC > to VM to improve guest network throughput, or passthrough a USB camera > to enable the guest OS to record video. > > Host devices form a tree. We can assign most of the devices in the tree > to VM. By assigning a device, all the devices in its sub-tree are also > assigned. It might not make sense to assign a USB controller, because > the host may be using one of the devices connected to the controller. > Instead, Kimchi just presents the "leaf" devices to assign to guest. > > In recent Linux kernel and KVM, it is able to recognize the IOMMU group > of a PCI device. The "leaf" PCI devices in the same IOMMU group should > be assigned and dismissed together. The IOMMU group is the actual > smallest isolation granularity of the PCI devices. > > The first patch is to list all host devices information. It's useful on > its own to show host devices information. > > The second patch is to list all eligible host devices to assign, as well > as the "affected" devices in the same IOMMU group. > > The third patch creates a sub-collection "hostdevs" to the VM resource, > and deals with assigning and dismissing devices. > > The fourth patch adds a sub-collection "vm_holders" to the host device > resource. It's to list all VMs that are holding the device. > > I'll update API and unit test once everyone is happy with the interface > and logic. > > v8: > Change the URI for listing affected passthrough devices, suggested by > Aline. Move hostdev.py to src/kimchi/model.py. Still discussing API > with the front-end developer. Once the API accepted, The author should > add tests for model and mockmodel, and change API.md and API.json > accordingly. > v7: > Some minor coding style improvements. > v6: > Do not passthrough PCI device of class code 0x07. It might contains > system device not suitable to assign to guest. > v5: > Filter ealigible pci devices according to pci class. When assigning a > device to VM, check if there are other VMs holding it. Use > "kimchi.model.utils.get_vm_config_flag()" to correctly set the device > attaching API flag. > v4: > Add new sub-collection to host device to list the VMs holding the device. > v3: > Fix a small naming error introduced by rebase. > v2: > Handle the devices in VM's sub-collection "hostdevs". > v1: > Handle the devices in VM template. > > Zhou Zheng Sheng (4): > Host device passthrough: List all types of host devices > Host device passthrough: List eligible device to passthrough > Host device passthrough: Directly assign and dissmis host device from > VM > Host device passthrough: List VMs that are holding a host device > > docs/API.md | 11 +- > src/kimchi/control/host.py | 7 + > src/kimchi/control/vm/hostdevs.py | 44 +++++ > src/kimchi/featuretests.py | 10 +- > src/kimchi/i18n.py | 10 + > src/kimchi/mockmodel.py | 7 +- > src/kimchi/model/config.py | 2 + > src/kimchi/model/host.py | 38 ++-- > src/kimchi/model/hostdev.py | 311 +++++++++++++++++++++++++++++++ > src/kimchi/model/libvirtstoragepool.py | 18 +- > src/kimchi/model/vmhostdevs.py | 324 +++++++++++++++++++++++++++++++++ > src/kimchi/rollbackcontext.py | 3 + > src/kimchi/xmlutils.py | 26 ++- > tests/test_rest.py | 6 +- > tests/test_storagepool.py | 7 +- > 15 files changed, 784 insertions(+), 40 deletions(-) > create mode 100644 src/kimchi/control/vm/hostdevs.py > create mode 100644 src/kimchi/model/hostdev.py > create mode 100644 src/kimchi/model/vmhostdevs.py > _______________________________________________ Kimchi-devel mailing list Kimchi-devel(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/kimchi-devel