sysfs-driver-pciback (1378B)
1What: /sys/bus/pci/drivers/pciback/quirks 2Date: Oct 2011 3KernelVersion: 3.1 4Contact: xen-devel@lists.xenproject.org 5Description: 6 If the permissive attribute is set, then writing a string in 7 the format of DDDD:BB:DD.F-REG:SIZE:MASK will allow the guest 8 to write and read from the PCI device. That is Domain:Bus: 9 Device.Function-Register:Size:Mask (Domain is optional). 10 For example:: 11 12 #echo 00:19.0-E0:2:FF > /sys/bus/pci/drivers/pciback/quirks 13 14 will allow the guest to read and write to the configuration 15 register 0x0E. 16 17What: /sys/bus/pci/drivers/pciback/allow_interrupt_control 18Date: Jan 2020 19KernelVersion: 5.6 20Contact: xen-devel@lists.xenproject.org 21Description: 22 List of devices which can have interrupt control flag (INTx, 23 MSI, MSI-X) set by a connected guest. It is meant to be set 24 only when the guest is a stubdomain hosting device model (qemu) 25 and the actual device is assigned to a HVM. It is not safe 26 (similar to permissive attribute) to set for a devices assigned 27 to a PV guest. The device is automatically removed from this 28 list when the connected pcifront terminates.