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| author | Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> | 2016-04-01 09:06:01 -0400 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2016-04-07 13:29:41 +0200 |
| commit | ca3bf5d47cec8b7614bcb2e9132c40081d6d81db (patch) | |
| tree | 3ab1b984c7780ad3bfce7b5636693f3edd91025b /Documentation/kernel-parameters.txt | |
| parent | 2a0cb4e2d423c8aeafa79945279246f6b35ea8cf (diff) | |
| download | lwn-ca3bf5d47cec8b7614bcb2e9132c40081d6d81db.tar.gz lwn-ca3bf5d47cec8b7614bcb2e9132c40081d6d81db.zip | |
iommu/amd: Introduces ivrs_acpihid kernel parameter
This patch introduces a new kernel parameter, ivrs_acpihid.
This is used to override existing ACPI-HID IVHD device entry,
or add an entry in case it is missing in the IVHD.
Signed-off-by: Wan Zongshun <Vincent.Wan@amd.com>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index ecc74fa4bfde..8c881a5f7af0 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1767,6 +1767,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. PCI device 00:14.0 write the parameter as: ivrs_hpet[0]=00:14.0 + ivrs_acpihid [HW,X86_64] + Provide an override to the ACPI-HID:UID<->DEVICE-ID + mapping provided in the IVRS ACPI table. For + example, to map UART-HID:UID AMD0020:0 to + PCI device 00:14.5 write the parameter as: + ivrs_acpihid[00:14.5]=AMD0020:0 + js= [HW,JOY] Analog joystick See Documentation/input/joystick.txt. |