From ca3bf5d47cec8b7614bcb2e9132c40081d6d81db Mon Sep 17 00:00:00 2001 From: Suravee Suthikulpanit Date: Fri, 1 Apr 2016 09:06:01 -0400 Subject: 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 Signed-off-by: Suravee Suthikulpanit Signed-off-by: Joerg Roedel --- Documentation/kernel-parameters.txt | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'Documentation/kernel-parameters.txt') 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. -- cgit v1.2.3