From: Jason Gunthorpe <jgg@ziepe.ca>
To: Joe Damato <joe@dama.to>
Cc: iommu@lists.linux.dev, Joerg Roedel <joro@8bytes.org>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Vasant Hegde <vasant.hegde@amd.com>,
Kevin Tian <kevin.tian@intel.com>,
linux-kernel@vger.kernel.org, Joerg Roedel <jroedel@suse.de>
Subject: Re: [PATCH] iommu/amd: Block identity domain when SNP enabled
Date: Mon, 9 Mar 2026 21:35:23 -0300 [thread overview]
Message-ID: <20260310003523.GQ1687929@ziepe.ca> (raw)
In-Reply-To: <20260309235234.3367768-1-joe@dama.to>
On Mon, Mar 09, 2026 at 04:52:33PM -0700, Joe Damato wrote:
> With this commit applied:
>
> # echo "identity" > /sys/kernel/iommu_groups/62/type
> -bash: echo: write error: Invalid argument
>
> Fixes: 4402f2627d30 ("iommu/amd: Implement global identity domain")
> Signed-off-by: Joe Damato <joe@dama.to>
> ---
> drivers/iommu/amd/iommu.c | 15 ++++++++++++++-
> 1 file changed, 14 insertions(+), 1 deletion(-)
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Jason
next prev parent reply other threads:[~2026-03-10 0:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-09 23:52 Joe Damato
2026-03-10 0:35 ` Jason Gunthorpe [this message]
2026-03-11 16:10 ` Vasant Hegde
2026-03-17 13:02 ` Joerg Roedel
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=20260310003523.GQ1687929@ziepe.ca \
--to=jgg@ziepe.ca \
--cc=iommu@lists.linux.dev \
--cc=joe@dama.to \
--cc=joro@8bytes.org \
--cc=jroedel@suse.de \
--cc=kevin.tian@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=robin.murphy@arm.com \
--cc=suravee.suthikulpanit@amd.com \
--cc=vasant.hegde@amd.com \
--cc=will@kernel.org \
/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
all inboxes | Powered by JetHome®