5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
29 lines
1.3 KiB
Plaintext
29 lines
1.3 KiB
Plaintext
What: /sys/bus/pci/drivers/pciback/quirks
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Date: Oct 2011
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KernelVersion: 3.1
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Contact: xen-devel@lists.xenproject.org
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Description:
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If the permissive attribute is set, then writing a string in
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the format of DDDD:BB:DD.F-REG:SIZE:MASK will allow the guest
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to write and read from the PCI device. That is Domain:Bus:
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Device.Function-Register:Size:Mask (Domain is optional).
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For example::
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#echo 00:19.0-E0:2:FF > /sys/bus/pci/drivers/pciback/quirks
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will allow the guest to read and write to the configuration
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register 0x0E.
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What: /sys/bus/pci/drivers/pciback/allow_interrupt_control
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Date: Jan 2020
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KernelVersion: 5.6
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Contact: xen-devel@lists.xenproject.org
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Description:
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List of devices which can have interrupt control flag (INTx,
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MSI, MSI-X) set by a connected guest. It is meant to be set
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only when the guest is a stubdomain hosting device model (qemu)
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and the actual device is assigned to a HVM. It is not safe
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(similar to permissive attribute) to set for a devices assigned
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to a PV guest. The device is automatically removed from this
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list when the connected pcifront terminates.
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