On Fri, Dec 04, 2015 at 11:24:25AM +0800, Wang Hongcheng wrote:
> From: Wan Zongshun <vincent....@amd.com>
>
> Add ivrs_acpihid kernel parameter description,
> like ivrs_acpihid[00:14.5]=AMD0020:0.
>
> Signed-off-by: Wan Zongshun <vincent....@amd.com>
> ---
> Documentation/kernel-parameters.txt | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/Documentation/kernel-parameters.txt
> b/Documentation/kernel-parameters.txt
> index 742f69d..5c364c6 100644
> --- a/Documentation/kernel-parameters.txt
> +++ b/Documentation/kernel-parameters.txt
> @@ -1680,6 +1680,13 @@ 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
What is that parameter needed for? Can't you deduce the mapping from the
hardware?
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
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