From: Stoiko Ivanov <s.ivanov@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH pve-kernel/master 0/2] fix two small issues with IOMMU in certain setups
Date: Tue, 26 Nov 2024 17:36:34 +0100 [thread overview]
Message-ID: <20241126163636.825951-1-s.ivanov@proxmox.com> (raw)
stubled across https://bugzilla.proxmox.com/show_bug.cgi?id=5926 which
mentioned kernel-issues related to the 8.3.0 release - so took a quick look.
While I think that the issues were not directly related to 8.3 (or the
kernel version shipped with it (see bugzilla)) - one issue seemed to
be easily addressable with a cherry-pick from kernel.org stable-6.11.7
(patch 1/2)
the second patch addresses an unrleated issue reported in our forums:
https://forum.proxmox.com/threads/.157266
see the commit-message of the patch for a bit more information - but it
basically reverts a patch from Ubuntu-upstream, as this broke iGPU
passthrough for old Intel-CPUs (without the patch users affected by the
issue reported to Ubuntu had the options of disabling iommu via
kernel-cmdline anyways).
I'd suggest pulling patch 2/2 also for our kernel 6.8.
Stoiko Ivanov (2):
fix #5926: cherry-pick ACS-quirk fix from linux-stable/6.11.7
revert Ubuntu patch disabling IOMMU functionality for Skylake iGPU
...nable_acs-support-for-the-ACS-quirks.patch | 68 +++++++++++++++++++
...UCE-iommu-intel-disable-DMAR-for-SKL.patch | 53 +++++++++++++++
2 files changed, 121 insertions(+)
create mode 100644 patches/kernel/0016-PCI-Fix-pci_enable_acs-support-for-the-ACS-quirks.patch
create mode 100644 patches/kernel/0017-Revert-UBUNTU-SAUCE-iommu-intel-disable-DMAR-for-SKL.patch
--
2.39.5
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next reply other threads:[~2024-11-26 16:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-26 16:36 Stoiko Ivanov [this message]
2024-11-26 16:36 ` [pve-devel] [PATCH pve-kernel/master 1/2] fix #5926: cherry-pick ACS-quirk fix from linux-stable/6.11.7 Stoiko Ivanov
2024-11-26 16:36 ` [pve-devel] [PATCH pve-kernel/master 2/2] revert Ubuntu patch disabling IOMMU functionality for Skylake iGPU Stoiko Ivanov
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