Re: [PATCH v4 7/7] iommu/amd: Provide kernel command line option to enable GAPPI

[Sairaj Kodilkar]

On 8/21/2026 11:43 AM, Randy Dunlap wrote:
> 
> 
> On 8/20/26 10:56 PM, Sairaj Kodilkar wrote:
>> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
>> index 97007f4f69d4..7bea1bbaa0e0 100644
>> --- a/Documentation/admin-guide/kernel-parameters.txt
>> +++ b/Documentation/admin-guide/kernel-parameters.txt
>> @@ -455,7 +455,8 @@ Kernel parameters
>>  				          to 4 KiB.
>>  			v2_pgsizes_only - Limit page-sizes used for v1 page-tables
>>  				          to 4KiB/2Mib/1GiB.
>> -
>> +			gappi           - Use GAPPI instead of GALOG for vCPU
>> +				          wakeup notification.
> 
> Is GALOG documented somewhere? Should it be?
> I can't find it...

Its not documented. Maybe we can add small documentation in
arch/x86/iommu.rst

Thanks
Sairaj

> 
> thanks.