From: Jason Gunthorpe <jgg@nvidia.com>
To: Sairaj Kodilkar <sarunkod@amd.com>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
nicolinc@nvidia.com, linux-kernel@vger.kernel.org,
robin.murphy@arm.com, will@kernel.org, joro@8bytes.org,
kevin.tian@intel.com, jsnitsel@redhat.com, vasant.hegde@amd.com,
iommu@lists.linux.dev, santosh.shukla@amd.com,
sairaj.arunkodilkar@amd.com, jon.grimm@amd.com,
prashanthpra@google.com, wvw@google.com, wnliu@google.com,
gptran@google.com, kpsingh@google.com
Subject: Re: [PATCH 7/8] iommu/amd: Add support for nested domain allocation
Date: Tue, 2 Sep 2025 08:42:49 -0300 [thread overview]
Message-ID: <20250902114249.GC186519@nvidia.com> (raw)
In-Reply-To: <d949f151-ff90-4e83-a85c-f22ef6b477f1@amd.com>
On Mon, Sep 01, 2025 at 12:39:56PM +0530, Sairaj Kodilkar wrote:
> > + pdom->pd_mode = PD_MODE_V2;
> > + pdom->parent = to_pdomain(parent);
> > + pdom->domain.ops = &nested_domain_ops;
> > + pdom->domain.type = IOMMU_DOMAIN_NESTED;
> > + pdom->iop.pgtbl.cfg.amd.nid = NUMA_NO_NODE;
> > + pdom->domain.geometry.aperture_start = 0;
> > + pdom->domain.geometry.aperture_end = ((1ULL << PM_LEVEL_SHIFT(amd_iommu_gpt_level)) - 1);
> > + pdom->domain.geometry.force_aperture = true;
> > + pdom->domain.pgsize_bitmap = pdom->iop.pgtbl.cfg.pgsize_bitmap;
>
> Hi Suravee,
> You are assigning a unintialized pdom->iop.pgtbl.cfg.pgsize_bitmap to
> pdom->domain.pgsize_bitmap. In non-nested domain attach pdom_setup_pgtable()
> takes care of initializing pgsize_bitmap.
nested domains should not have a map/unmap function in their ops so
none of this code should be present.
Jason
next prev parent reply other threads:[~2025-09-02 11:42 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-20 11:30 [PATCH 0/8] iommu/amd: Introduce Nested Translation support Suravee Suthikulpanit
2025-08-20 11:30 ` [PATCH 1/8] iommu/amd: Make amd_iommu_pdom_id_alloc() non-static Suravee Suthikulpanit
2025-09-02 13:03 ` Jason Gunthorpe
2025-08-20 11:30 ` [PATCH 2/8] iommu/amd: Making device attach / detach helpers non-static Suravee Suthikulpanit
2025-09-02 13:10 ` Jason Gunthorpe
2025-08-20 11:30 ` [PATCH 3/8] iommu/amd: Making amd_iommu_pdev_enable_cap_ats non-static Suravee Suthikulpanit
2025-08-20 11:30 ` [PATCH 4/8] iommu/amd: Introduce struct gcr3_tbl_info.giov Suravee Suthikulpanit
2025-09-02 13:07 ` Jason Gunthorpe
2025-08-20 11:30 ` [PATCH 5/8] iommufd: Introduce data struct for AMD nested domain allocation Suravee Suthikulpanit
2025-09-02 13:09 ` Jason Gunthorpe
2025-08-20 11:30 ` [PATCH 6/8] iommu/amd: Add support for nest parent " Suravee Suthikulpanit
2025-09-02 13:12 ` Jason Gunthorpe
2025-08-20 11:30 ` [PATCH 7/8] iommu/amd: Add support for nested " Suravee Suthikulpanit
2025-08-22 5:39 ` kernel test robot
2025-08-22 19:51 ` Nicolin Chen
2025-08-22 21:16 ` Jason Gunthorpe
2025-08-22 21:45 ` Nicolin Chen
2025-08-25 13:38 ` Jason Gunthorpe
2025-09-01 7:09 ` Sairaj Kodilkar
2025-09-02 11:42 ` Jason Gunthorpe [this message]
2025-09-02 13:18 ` Jason Gunthorpe
2025-08-20 11:30 ` [PATCH 8/8] iommu/amd: Add support for nested domain attach/detach Suravee Suthikulpanit
2025-08-22 20:20 ` Nicolin Chen
2025-08-28 0:36 ` Suthikulpanit, Suravee
2025-09-02 13:25 ` Jason Gunthorpe
2025-09-03 8:27 ` Sairaj Kodilkar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250902114249.GC186519@nvidia.com \
--to=jgg@nvidia.com \
--cc=gptran@google.com \
--cc=iommu@lists.linux.dev \
--cc=jon.grimm@amd.com \
--cc=joro@8bytes.org \
--cc=jsnitsel@redhat.com \
--cc=kevin.tian@intel.com \
--cc=kpsingh@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=nicolinc@nvidia.com \
--cc=prashanthpra@google.com \
--cc=robin.murphy@arm.com \
--cc=sairaj.arunkodilkar@amd.com \
--cc=santosh.shukla@amd.com \
--cc=sarunkod@amd.com \
--cc=suravee.suthikulpanit@amd.com \
--cc=vasant.hegde@amd.com \
--cc=will@kernel.org \
--cc=wnliu@google.com \
--cc=wvw@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox