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2 Commits

Author SHA1 Message Date
Tiwei Bie
bc4e2ae081 um: vfio: Prevent duplicate device assignments 
Ensure devices are assigned only once. Reject subsequent requests
for duplicate assignments.

Fixes: a0e2cb6a90 ("um: Add VFIO-based virtual PCI driver")
Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Link: https://patch.msgid.link/20250606124428.148164-4-tiwei.btw@antgroup.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2025-06-25 09:26:06 +02:00
Tiwei Bie
a0e2cb6a90 um: Add VFIO-based virtual PCI driver 
Implement a new virtual PCI driver based on the VFIO framework.
This driver allows users to pass through PCI devices to UML via
VFIO. Currently, only MSI-X capable devices are supported, and
it is assumed that drivers will use MSI-X.

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Link: https://patch.msgid.link/20250413154421.517878-1-tiwei.btw@antgroup.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2025-05-05 10:25:24 +02:00