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Keir Fraser
491c0ade25
Domctl interface is extended to allow libxc retrieve device group information from hypervisor. Vendor-specific iommu_ops is also extended by adding a new operation "get_device_group_id()", which is currently a null pointer but could be implemented later for vt-d. Error will be raised from tools side when user trying to assign PCI device with a sibling device being driven by dom0. User will keep being prompted until he has hidden the entire device group (at least, the sibling devices driven by dom0) in dom0 kernel parameter. Hopefully this framework could be flexible enough to support both amd iommu and vt-d. The following 2 cases are not covered by this patch, but should be easy to handle. * Checking for hot-plug devices (maybe we can delay calling ImageHandler.signalDeviceModel() until all checks are done?) * Checking for splitted device group between different passthru domains Signed-off-by: Wei Wang <wei.wang2@amd.com>
The file test.py here is from the Zope project, and is Copyright (c) 2001, 2002 Zope Corporation and Contributors. This file is released under the Zope Public License, version 2.0, a copy of which is in the file ZPL-2.0.