Re: [PATCH] iommu/amd: Add kernel parameters to limit V1 page-sizes

To: Joerg Roedel <joro@xxxxxxxxxx>
Subject: Re: [PATCH] iommu/amd: Add kernel parameters to limit V1 page-sizes
From: Baolu Lu <baolu.lu@xxxxxxxxxxxxxxx>
Date: Thu, 5 Sep 2024 16:09:21 +0800
Cc: baolu.lu@xxxxxxxxxxxxxxx, Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, Vasant Hegde <vasant.hegde@xxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxxxx>, linux-doc@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Joerg Roedel <jroedel@xxxxxxx>
In-reply-to: <Ztle72HfrjBjlJGa@8bytes.org>
References: <20240905072240.253313-1-joro@8bytes.org> <45a3ae40-6e59-43b4-ae57-d159bd2b54df@linux.intel.com> <Ztle72HfrjBjlJGa@8bytes.org>
User-agent: Mozilla Thunderbird

On 2024/9/5 15:34, Joerg Roedel wrote:

On Thu, Sep 05, 2024 at 03:31:08PM +0800, Baolu Lu wrote:

Is it possible to consolidate these two into a single
"iommu.nohugepages=1"?

Generally yes, but that requires to touch all drivers to make the
behavior consistent. We can start this effort on-top of this change, if
desired.


Yeah! That works too.

Thanks,
baolu

References:
- [PATCH] iommu/amd: Add kernel parameters to limit V1 page-sizes
  - From: Joerg Roedel
- Re: [PATCH] iommu/amd: Add kernel parameters to limit V1 page-sizes
  - From: Baolu Lu
- Re: [PATCH] iommu/amd: Add kernel parameters to limit V1 page-sizes
  - From: Joerg Roedel