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28 lines
1.3 KiB
28 lines
1.3 KiB
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: [email protected] |
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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: [email protected] |
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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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