Hello, I tested the kernel with the changes and it works nice!
Thank you
root@ubuntu:~# numactl -H
available: 3 nodes (0,251-252)
node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
51 52 53
** Attachment added: "small script to detach devices from the same IOMMU group"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819989/+attachment/5251785/+files/detach.sh
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SRU:
[Impact]
* An important feature was developed for PowerPC upstream and
backported to a custom version of Ubuntu Bionic 18.04.1. The feature is
known as nvlink2[1] passthrough, it allows physical GPUs to be accessed
from any QEMU/KVM virtual machine. The problem happens when clients want
to
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1819989
Title:
Add basic support to NVLink2 passthrough
Status in lin
The patchset is in the mailing list for review:
https://lists.ubuntu.com/archives/kernel-team/2019-March/099243.html
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https://bugs.launchpad.net/bugs/1819989
Title:
Add bas
Public bug reported:
This bug exists to track the basic support to NVLink2 passthrough on
Ubuntu 18.04 - for the guest side only. There's a relative small
patchset that I'm going to send to Canonical Kernel Team using this
buglink.
On the host side we'll be running a custom version of Ubuntu 18.0
Juerg, sorry, my bad. I tested my own build. I was sure I had 'apt-get'
that IBM-cloud, which didn't happen.
Anyway, I was not aware of that salesforce process. I saw this bug
marked as "won't fix" without any further explanation, how could I know
that? Anyway, how do I access the salesforce to ma
Hello Juerg,
Thanks for the packages provided. I made a initial setup and it looks
good. However, a bug was identified and a new patch should be applied on
top of my previous patchset. Would you mind to include it?
The patch is:
https://github.com/jrziviani/linux-devel/commit/b466f257ada3b408be3
Hi Christian,
You're right, we're going to use our customized QEMU.
Thank you!!
Jose
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https://bugs.launchpad.net/bugs/1800649
Title:
Add support for NVIDIA GPU passthrou
Hello Christian!
That's a good point. :-) As far as I know the project should be based on
top of v2.11.2 (at least, this is what we've been testing).
I'll try to confirm it here.
Thank you
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@Christian, hello!
I completed the backport to QEMU v2.11.2, but more patches were required
in order to make it work.
The patchset is attached here but it can be found also at
https://github.com/jrziviani/qemu-devel/tree/nv2_scratch_181204_bionic.
Patches from 1 to 34 are already upstream, from
@Juerg Hello,
I have a new patchset. It has all the necessary fixes to stabilize
nvlink2 passthrough, which required more patches backported.
I'm attaching the tar.gz here. You can also find it at
https://github.com/jrziviani/linux-devel/tree/nv2_scratch_181203_bionic
It's built on top of ubuntu
The file passthrough-patches.tar.gz contains the following patches:
0001-kvm-no-need-to-check-return-value-of-debugfs_create-.patch
0002-powerpc-powernv-idoa-Remove-unnecessary-pcidev-from-.patch
0003-powerpc-Use-sizeof-foo-rather-than-sizeof-struct-foo.patch
0004-powerpc-powernv-npu-Do-not-try-in
The patch attached here contains the necessary to build QEMU with
support to nvlink2 passthrough:
0001-qdev-Use-string-for-QOM-string-properties.patch
0002-ppc-spapr-Receive-and-store-device-tree-blob-from-SL.patch
0003-DBG-store-fdt.patch
0004-vfio-spapr-Fix-indirect-levels-calculation.patch
0005
** Patch added:
"0001-kvm-no-need-to-check-return-value-of-debugfs_create-.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1800649/+attachment/5209841/+files/0001-kvm-no-need-to-check-return-value-of-debugfs_create-.patch
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** Tags removed: verification-needed-zesty
** Tags added: verification-done-zesty
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https://bugs.launchpad.net/bugs/1686019
Title:
Ubuntu 16.04.3: Qemu fails on P9
Status i
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