Arch Linux User Repository

• Leaving eclairvoyant's comment pinned because it contains some useful information.
• Patch policy is different, but similar.
  • Primary purpose of this package are the ACS override and i915 VGA arbiter patches.
  • Upstream Arch patches will be applied to maintain parity with the standard kernel.
  • No other patches will be added.
• Package does have options that can be changed, like building with clang or disabling Arch patches.
  • Defaults will match Arch packages, except when incompatible with this package's primary patches.
  • Options are subject to change. Read PKGBUILD for details.
• Avoid commenting and flagging at the same time for the same issue.
  • Flag for common issues with standard solutions, like new releases, key changes, etc.
  • Comment for issues requiring explanation or debugging.
    • Use a pastebin for blocks of text more than a few lines.

This package exists for the specific purpose of adding ported patches based on those originally created by Alex Williamson for:

• Bypassing the default IOMMU grouping by overriding PCIe ACS support, and

• Enabling VGA arbitration support on Intel iGPUs.

Arbitrary patches will not be added.

Refer to the wiki on PCI passthrough and this blog post on IOMMU groups for risks/caveats before using this package.

Regular AUR etiquette applies as well (knowledge of makepkg and searching the wiki/Arch forums is expected, and AUR helpers or Arch-based distros that are not Arch Linux are unsupported).

I did a little more digging and it looks like the problem is not this package, but rather that the linux package might be broken in the core repo (opps). It looks like the Arch Devs are on it and there is a 5.11 version of the linux package in testing with a patch for a recent upgrade to Sphinx. My guess is once the new version hits core and this package is updated, everything will be fine.

I am having trouble building in a clean chroot.

cat: /etc/os-release: No such file or directory SPHINX htmldocs --> file:///build/linux-vfio/src/archlinux-linux/Documentation/output PARSE include/uapi/linux/dvb/audio.h PARSE include/uapi/linux/dvb/ca.h PARSE include/uapi/linux/dvb/dmx.h PARSE include/uapi/linux/dvb/frontend.h PARSE include/uapi/linux/dvb/net.h PARSE include/uapi/linux/dvb/video.h PARSE include/uapi/linux/videodev2.h PARSE include/uapi/linux/media.h PARSE include/uapi/linux/cec.h PARSE include/uapi/linux/lirc.h WARNING: The kernel documentation build process support for Sphinx v3.0 and above is brand new. Be prepared for possible issues in the generated output. /build/linux-vfio/src/archlinux-linux/Documentation/driver-api/usb/usb:158: ./drivers/usb/core/message.c:961: WARNING: Duplicate C declaration, also defined at driver-api/usb/gadget:759. Declaration is '.. c:function:: int usb_string (struct usb_device dev, int index, char buf, size_t size)'. /build/linux-vfio/src/archlinux-linux/Documentation/driver-api/usb/usb.rst:961: WARNING: Duplicate C declaration, also defined at driver-api/usb/gadget:759. Declaration is '.. c:struct:: usb_string'. /build/linux-vfio/src/archlinux-linux/Documentation/gpu/drm-kms:349: ./drivers/gpu/drm/drm_fourcc.c:312: WARNING: Duplicate C declaration, also defined at gpu/drm-kms:3. Declaration is '.. c:function:: const struct drm_format_info * drm_format_info (u32 format)'. /build/linux-vfio/src/archlinux-linux/Documentation/gpu/drm-kms:433: ./drivers/gpu/drm/drm_modeset_lock.c:338: WARNING: Duplicate C declaration, also defined at gpu/drm-kms:46. Declaration is '.. c:function:: int drm_modeset_lock (struct drm_modeset_lock lock, struct drm_modeset_acquire_ctx ctx)'. /build/linux-vfio/src/archlinux-linux/Documentation/gpu/drm-uapi:346: ./drivers/gpu/drm/drm_ioctl.c:919: WARNING: Duplicate C declaration, also defined at gpu/drm-uapi:70. Declaration is '.. c:function:: bool drm_ioctl_flags (unsigned int nr, unsigned int flags)'. /build/linux-vfio/src/archlinux-linux/Documentation/gpu/todo.rst:283: WARNING: Unexpected indentation. /build/linux-vfio/src/archlinux-linux/Documentation/gpu/todo.rst:284: WARNING: Block quote ends without a blank line; unexpected unindent. /build/linux-vfio/src/archlinux-linux/Documentation/driver-api/miscellaneous:48: ./drivers/pwm/core.c:667: WARNING: Duplicate C declaration, also defined at driver-api/miscellaneous:294. Declaration is '.. c:function:: int pwm_capture (struct pwm_device pwm, struct pwm_capture result, unsigned long timeout)'. /build/linux-vfio/src/archlinux-linux/Documentation/driver-api/80211/mac80211:109: ./include/net/mac80211.h:4719: WARNING: Duplicate C declaration, also defined at driver-api/80211/mac80211:1011. Declaration is '.. c:function:: void ieee80211_tx_status (struct ieee80211_hw hw, struct sk_buff *skb)'.

Exception occurred: File "/usr/lib/python3.9/site-packages/sphinx/builders/html/init.py", line 1039, in <lambda> ctx['css_files'].sort(key=lambda js: js.priority) AttributeError: 'str' object has no attribute 'priority' The full traceback has been saved in /tmp/sphinx-err-ct3buvc5.log, if you want to report the issue to the developers. Please also report this if it was a user error, so that a better error message can be provided next time. A bug report can be filed in the tracker at https://github.com/sphinx-doc/sphinx/issues. Thanks! make[1]: [Documentation/Makefile:91: htmldocs] Error 2 make: [Makefile:1665: htmldocs] Error 2 ==> ERROR: A failure occurred in build(). Aborting... ==> ERROR: Build failed, check /chroot/base-devel/dshub/build

@slowbro OT/ RTX4000 user here , but big thanks for your constant effort !!! :-) Happy holidays to both of you that help us to use this kernel ;-) /OT

I have the patch & package prepped for 5.10.2 - waiting for it to come out of testing. There were significant changes to i915 in 5.10 - is anyone running 5.10.x already, on i915, and willing to test the linux-vfio package before 5.10 hits core?

5.9.11 has fixed the IOMMU groups problem for me, but I have had to include a patch to deal with an AMD reset bug.

5.9.11 fixed the problem also for me. Thanks.

I was having the same issue as peterh where the IOMMU grouping stopped working at 5.9.1 (I7-3770, Gigabyte Z77X-UD3H). After compiling 5.9.11, the issue is now resolved.

An easy way to import the required gpg keys, if anyone is having problems with it as I was.

curl https://keybase.io/heftig/pgp_keys.asc | gpg --import

I can confirm there's an issue with it. I cannot get to investigating until this weekend though.

The IOMMU groups on my system (Z77, I7-3770) are broken if I'm using version linux-vfio 5.9.1.arch1-1. Any idea ?