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Message-ID: <20241011163036.GN762027@ziepe.ca>
Date: Fri, 11 Oct 2024 13:30:36 -0300
From: Jason Gunthorpe <jgg@...pe.ca>
To: Lu Baolu <baolu.lu@...ux.intel.com>
Cc: iommu@...ts.linux.dev, Joerg Roedel <joro@...tes.org>,
Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
Kevin Tian <kevin.tian@...el.com>, Yi Liu <yi.l.liu@...el.com>,
Vasant Hegde <vasant.hegde@....com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/7] iommu/vt-d: Remove domain_update_iommu_superpage()
On Fri, Oct 11, 2024 at 12:27:20PM +0800, Lu Baolu wrote:
> The requirement for consistent super page support across all the IOMMU
> hardware in the system has been removed. In the past, if a new IOMMU
> was hot-added and lacked consistent super page capability, the hot-add
> process would be aborted. However, with the updated attachment semantics,
> it is now permissible for the super page capability to vary among
> different IOMMU hardware units.
>
> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
> ---
> drivers/iommu/intel/iommu.c | 39 +------------------------------------
> 1 file changed, 1 insertion(+), 38 deletions(-)
Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
Jason
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