From: Zhenzhong Duan <zhenzhong.duan@intel.com>
To: qemu-devel@nongnu.org
Cc: mst@redhat.com, jasowang@redhat.com, peterx@redhat.com,
yi.l.liu@intel.com, clement.mathieu--drif@eviden.com,
Zhenzhong Duan <zhenzhong.duan@intel.com>
Subject: [PATCH 0/3] Fix DMA failure when there is domain switch in
Date: Wed, 15 Oct 2025 06:19:59 -0400 [thread overview]
Message-ID: <20251015102003.279239-1-zhenzhong.duan@intel.com> (raw)
Hi,
This fixes an DMA failure issue in guest when user switch domain
manually. E.g., echo [DMA|identity] > /sys/kernel/iommu_groups/6/type
First two patches come from [PATCH v6 00/22] intel_iommu: Enable first stage translation for passthrough device
which added basic support for pasid cache invalidation, the 3rd patch
add a fix.
Thanks
Zhenzhong
Zhenzhong Duan (3):
intel_iommu: Handle PASID cache invalidation
intel_iommu: Reset pasid cache when system level reset
intel_iommu: Fix DMA failure when guest switches IOMMU domain
hw/i386/intel_iommu_internal.h | 20 +++-
include/hw/i386/intel_iommu.h | 6 ++
hw/i386/intel_iommu.c | 168 ++++++++++++++++++++++++++++++---
hw/i386/trace-events | 4 +
4 files changed, 185 insertions(+), 13 deletions(-)
--
2.47.1
next reply other threads:[~2025-10-15 10:21 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-15 10:19 Zhenzhong Duan [this message]
2025-10-15 10:20 ` [PATCH 1/3] intel_iommu: Handle PASID cache invalidation Zhenzhong Duan
2025-10-15 12:38 ` Yi Liu
2025-10-16 2:45 ` Duan, Zhenzhong
2025-10-15 10:20 ` [PATCH 2/3] intel_iommu: Reset pasid cache when system level reset Zhenzhong Duan
2025-10-15 10:20 ` [PATCH 3/3] intel_iommu: Fix DMA failure when guest switches IOMMU domain Zhenzhong Duan
2025-10-15 12:42 ` Yi Liu
2025-10-16 3:14 ` Duan, Zhenzhong
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=20251015102003.279239-1-zhenzhong.duan@intel.com \
--to=zhenzhong.duan@intel.com \
--cc=clement.mathieu--drif@eviden.com \
--cc=jasowang@redhat.com \
--cc=mst@redhat.com \
--cc=peterx@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=yi.l.liu@intel.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;
as well as URLs for NNTP newsgroup(s).