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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2014-07-14 20:18:51 +0400 |
|---|---|---|
| committer | David Vrabel <david.vrabel@citrix.com> | 2014-08-01 19:02:34 +0400 |
| commit | 8b63c998b31c69fff2c8c8c7e543e3142d9eea71 (patch) | |
| tree | 3f5cdbdc8f676a6de6d52d0fed85c9a2e77fe5f9 | |
| parent | 2ef760323a8a7ced5e1b2286c8df95226606a64e (diff) | |
| download | linux-8b63c998b31c69fff2c8c8c7e543e3142d9eea71.tar.xz | |
xen-pciback: Document the 'quirks' sysfs file
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-pciback | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-pciback b/Documentation/ABI/testing/sysfs-driver-pciback new file mode 100644 index 000000000000..6a733bfa37e6 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-pciback @@ -0,0 +1,13 @@ +What: /sys/bus/pci/drivers/pciback/quirks +Date: Oct 2011 +KernelVersion: 3.1 +Contact: xen-devel@lists.xenproject.org +Description: + If the permissive attribute is set, then writing a string in + the format of DDDD:BB:DD.F-REG:SIZE:MASK will allow the guest + to write and read from the PCI device. That is Domain:Bus: + Device.Function-Register:Size:Mask (Domain is optional). + For example: + #echo 00:19.0-E0:2:FF > /sys/bus/pci/drivers/pciback/quirks + will allow the guest to read and write to the configuration + register 0x0E. |