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Message-ID: <20241029160157.GL209124@nvidia.com>
Date: Tue, 29 Oct 2024 13:01:57 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Nicolin Chen <nicolinc@...dia.com>
Cc: kevin.tian@...el.com, will@...nel.org, joro@...tes.org,
suravee.suthikulpanit@....com, robin.murphy@....com,
dwmw2@...radead.org, baolu.lu@...ux.intel.com, shuah@...nel.org,
linux-kernel@...r.kernel.org, iommu@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org,
linux-kselftest@...r.kernel.org, eric.auger@...hat.com,
jean-philippe@...aro.org, mdf@...nel.org, mshavit@...gle.com,
shameerali.kolothum.thodi@...wei.com, smostafa@...gle.com,
yi.l.liu@...el.com, aik@....com, zhangfei.gao@...aro.org,
patches@...ts.linux.dev
Subject: Re: [PATCH v5 04/13] iommufd/hw_pagetable: Enforce invalidation op
on vIOMMU-based hwpt_nested
On Fri, Oct 25, 2024 at 04:50:33PM -0700, Nicolin Chen wrote:
> A vIOMMU-based hwpt_nested requires a cache invalidation op too, either
> using the one in iommu_domain_ops or the one in viommu_ops. Enforce that
> upon the allocated hwpt_nested.
>
> Signed-off-by: Nicolin Chen <nicolinc@...dia.com>
> ---
> drivers/iommu/iommufd/hw_pagetable.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
Jason
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