linux-kernel - Re: [PATCH v4 10/16] iommu/amd: Add support for nest parent domain allocation

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Message-ID: <97b890f9-97cc-4844-9319-7d41d0e82ed1@amd.com>
Date: Thu, 23 Oct 2025 15:08:22 -0500
From: "Suthikulpanit, Suravee" <suravee.suthikulpanit@....com>
To: Nicolin Chen <nicolinc@...dia.com>
Cc: jgg@...dia.com, linux-kernel@...r.kernel.org, robin.murphy@....com,
 will@...nel.org, joro@...tes.org, kevin.tian@...el.com, jsnitsel@...hat.com,
 vasant.hegde@....com, iommu@...ts.linux.dev, santosh.shukla@....com,
 sairaj.arunkodilkar@....com, jon.grimm@....com, prashanthpra@...gle.com,
 wvw@...gle.com, wnliu@...gle.com, gptran@...gle.com, kpsingh@...gle.com,
 joao.m.martins@...cle.com, alejandro.j.jimenez@...cle.com
Subject: Re: [PATCH v4 10/16] iommu/amd: Add support for nest parent domain
 allocation

On 10/22/2025 9:27 PM, Nicolin Chen wrote:
> On Tue, Oct 21, 2025 at 01:43:18AM +0000, Suravee Suthikulpanit wrote:
>> diff --git a/drivers/iommu/amd/amd_iommu_types.h b/drivers/iommu/amd/amd_iommu_types.h
>> index 9226edd8af69..c34604cf1811 100644
>> --- a/drivers/iommu/amd/amd_iommu_types.h
>> +++ b/drivers/iommu/amd/amd_iommu_types.h
>> @@ -107,6 +107,7 @@
>>   
>>   
>>   /* Extended Feature 2 Bits */
>> +#define FEATURE_GCR3TRPMODE	BIT_ULL(3)
>>   #define FEATURE_SNPAVICSUP	GENMASK_ULL(7, 5)
>>   #define FEATURE_SNPAVICSUP_GAM(x) \
>>   	(FIELD_GET(FEATURE_SNPAVICSUP, x) == 0x1)
> 
> This now should be moved to the previous patch?
> 
> Nicolin

Ah, I was moving stuff around and missed this.

Thanks,
Suravee