[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
** Changed in: ubuntu-power-systems Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1819989 Title: Add basic support to NVLink2 passthrough Status in The Ubuntu-power-systems project: Fix Released Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Fix Released Bug description: 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 18.04 (kernel + qemu). However on the guest side it will be *very important* for clients to simply download the Ubuntu 18.04 from Canonical's website and have the NVLink2 working out of the box. For that, we have worked on a small patchset using only upstream patches without changing beyond our area. As soon as I send the patchset to the mailing list I'll update this bug with a link to that message. Thank you very much, Jose R. Ziviani To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1819989/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
This bug was fixed in the package linux - 4.15.0-48.51 --- linux (4.15.0-48.51) bionic; urgency=medium * linux: 4.15.0-48.51 -proposed tracker (LP: #1822820) * Packaging resync (LP: #1786013) - [Packaging] update helper scripts - [Packaging] resync retpoline extraction * 3b080b2564287be91605bfd1d5ee985696e61d3c in ubuntu_btrfs_kernel_fixes triggers system hang on i386 (LP: #1812845) - btrfs: raid56: properly unmap parity page in finish_parity_scrub() * [P9][LTCTest][Opal][FW910] cpupower monitor shows multiple stop Idle_Stats (LP: #1719545) - cpupower : Fix header name to read idle state name * [amdgpu] screen corruption when using touchpad (LP: #1818617) - drm/amdgpu/gmc: steal the appropriate amount of vram for fw hand-over (v3) - drm/amdgpu: Free VGA stolen memory as soon as possible. * [SRU][B/C/OEM]IOMMU: add kernel dma protection (LP: #1820153) - ACPICA: AML parser: attempt to continue loading table after error - ACPI / property: Allow multiple property compatible _DSD entries - PCI / ACPI: Identify untrusted PCI devices - iommu/vt-d: Force IOMMU on for platform opt in hint - iommu/vt-d: Do not enable ATS for untrusted devices - thunderbolt: Export IOMMU based DMA protection support to userspace - iommu/vt-d: Disable ATS support on untrusted devices * Add basic support to NVLink2 passthrough (LP: #1819989) - powerpc/powernv/npu: Do not try invalidating 32bit table when 64bit table is enabled - powerpc/powernv: call OPAL_QUIESCE before OPAL_SIGNAL_SYSTEM_RESET - powerpc/powernv: Export opal_check_token symbol - powerpc/powernv: Make possible for user to force a full ipl cec reboot - powerpc/powernv/idoa: Remove unnecessary pcidev from pci_dn - powerpc/powernv: Move npu struct from pnv_phb to pci_controller - powerpc/powernv/npu: Move OPAL calls away from context manipulation - powerpc/pseries/iommu: Use memory@ nodes in max RAM address calculation - powerpc/pseries/npu: Enable platform support - powerpc/pseries: Remove IOMMU API support for non-LPAR systems - powerpc/powernv/npu: Check mmio_atsd array bounds when populating - powerpc/powernv/npu: Fault user page into the hypervisor's pagetable * Huawei Hi1822 NIC has poor performance (LP: #1820187) - net-next: hinic: fix a problem in free_tx_poll() - hinic: remove ndo_poll_controller - net-next/hinic: add checksum offload and TSO support - hinic: Fix l4_type parameter in hinic_task_set_tunnel_l4 - net-next/hinic:replace multiply and division operators - net-next/hinic:add rx checksum offload for HiNIC - net-next/hinic:fix a bug in set mac address - net-next/hinic: fix a bug in rx data flow - net: hinic: fix null pointer dereference on pointer hwdev - hinic: optmize rx refill buffer mechanism - net-next/hinic:add shutdown callback - net-next/hinic: replace disable_irq_nosync/enable_irq * [CONFIG] please enable highdpi font FONT_TER16x32 (LP: #1819881) - Fonts: New Terminus large console font - [Config]: enable highdpi Terminus 16x32 font support * [19.04 FEAT] qeth: Enhanced link speed - kernel part (LP: #1814892) - s390/qeth: report 25Gbit link speed * CVE-2017-5754 - x86/nmi: Fix NMI uaccess race against CR3 switching - x86/mm: Fix documentation of module mapping range with 4-level paging - x86/pti: Enable global pages for shared areas - x86/pti: Never implicitly clear _PAGE_GLOBAL for kernel image - x86/pti: Leave kernel text global for !PCID - x86/pti: Fix boot problems from Global-bit setting - x86/pti: Fix boot warning from Global-bit setting - x86/pti: Reduce amount of kernel text allowed to be Global - x86/pti: Disallow global kernel text with RANDSTRUCT - x86/entry/32: Add explicit 'l' instruction suffix - x86/asm-offsets: Move TSS_sp0 and TSS_sp1 to asm-offsets.c - x86/entry/32: Rename TSS_sysenter_sp0 to TSS_entry2task_stack - x86/entry/32: Load task stack from x86_tss.sp1 in SYSENTER handler - x86/entry/32: Put ESPFIX code into a macro - x86/entry/32: Unshare NMI return path - x86/entry/32: Split off return-to-kernel path - x86/entry/32: Enter the kernel via trampoline stack - x86/entry/32: Leave the kernel via trampoline stack - x86/entry/32: Introduce SAVE_ALL_NMI and RESTORE_ALL_NMI - x86/entry/32: Handle Entry from Kernel-Mode on Entry-Stack - x86/entry/32: Simplify debug entry point - x86/entry/32: Add PTI cr3 switch to non-NMI entry/exit points - x86/entry/32: Add PTI CR3 switches to NMI handler code - x86/entry: Rename update_sp0 to update_task_stack - x86/pgtable: Rename pti_set_user_pgd() to pti_set_user_pgtbl() - x86/pgtable/pae: Unshare kernel PMDs when PTI is enabled - x86/pgtable/32: Allocate 8k page-tables when PTI is enabled - x86/pgtable: Move pgdp kernel/user conversion functions to pgtable.h
[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1819989 Title: Add basic support to NVLink2 passthrough Status in The Ubuntu-power-systems project: Fix Committed Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Fix Committed Bug description: 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 18.04 (kernel + qemu). However on the guest side it will be *very important* for clients to simply download the Ubuntu 18.04 from Canonical's website and have the NVLink2 working out of the box. For that, we have worked on a small patchset using only upstream patches without changing beyond our area. As soon as I send the patchset to the mailing list I'll update this bug with a link to that message. Thank you very much, Jose R. Ziviani To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1819989/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
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 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 node 0 size: 392745 MB node 0 free: 390074 MB node 251 cpus: node 251 size: 32256 MB node 251 free: 32253 MB node 252 cpus: node 252 size: 32256 MB node 252 free: 32252 MB node distances: node 0 251 252 0: 10 40 40 251: 40 10 40 252: 40 40 10 root@ubuntu:~# nvidia-smi Fri Apr 12 13:53:42 2019 +-+ | NVIDIA-SMI 410.72 Driver Version: 410.72 CUDA Version: 10.0 | |---+--+--+ | GPU NamePersistence-M| Bus-IdDisp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. | |===+==+==| | 0 Tesla V100-SXM2... On | 0001:00:02.0 Off |0 | | N/A 34CP041W / 300W | 3MiB / 32256MiB | 0% Default | +---+--+--+ | 1 Tesla V100-SXM2... On | 0001:00:08.0 Off |0 | | N/A 38CP043W / 300W | 3MiB / 32256MiB | 0% Default | +---+--+--+ +-+ | Processes: GPU Memory | | GPU PID Type Process name Usage | |=| | No running processes found | +-+ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1819989 Title: Add basic support to NVLink2 passthrough Status in The Ubuntu-power-systems project: Fix Committed Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Fix Committed Bug description: 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 18.04 (kernel + qemu). However on the guest side it will be *very important* for clients to simply download the Ubuntu 18.04 from Canonical's website and have the NVLink2 working out of the box. For that, we have worked on a small patchset using only upstream patches without changing beyond our area. As soon as I send the patchset to the mailing list I'll update this bug with a link to that message. Thank you very much, Jose R. Ziviani To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1819989/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed- bionic'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-bionic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1819989 Title: Add basic support to NVLink2 passthrough Status in The Ubuntu-power-systems project: Fix Committed Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Fix Committed Bug description: 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 18.04 (kernel + qemu). However on the guest side it will be *very important* for clients to simply download the Ubuntu 18.04 from Canonical's website and have the NVLink2 working out of the box. For that, we have worked on a small patchset using only upstream patches without changing beyond our area. As soon as I send the patchset to the mailing list I'll update this bug with a link to that message. Thank you very much, Jose R. Ziviani To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1819989/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
** 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 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1819989 Title: Add basic support to NVLink2 passthrough Status in The Ubuntu-power-systems project: Fix Committed Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Fix Committed Bug description: 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 18.04 (kernel + qemu). However on the guest side it will be *very important* for clients to simply download the Ubuntu 18.04 from Canonical's website and have the NVLink2 working out of the box. For that, we have worked on a small patchset using only upstream patches without changing beyond our area. As soon as I send the patchset to the mailing list I'll update this bug with a link to that message. Thank you very much, Jose R. Ziviani To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1819989/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
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 use that feature within their virtual machines: They will need to use a custom version, not the standard Ubuntu Bionic for PowerPC that everyone knows where it's and how to install it. We understand that it's a huge impact in the user experience, not only the extra-difficulty to find/install the correct version but users that misunderstand the need of a custom version will think that the feature is simply broken. Due to the fact that the guest part (the code that will run in the virtual machine) is a way simpler than the host part we decided to send the patches as a SRU. Fixing the user-experience problem without impacting existing use-cases. [1] https://wccftech.com/nvidia-volta-gv100-gpu-fast-pascal-gp100/ [Test Case] * In order to reproduce the issue, it's required a Power9 system with NVLink2 + NVidia GPU and the customized Ubuntu Bionic installed (kernel + qemu). * Then, create a virtual machine like: Create a disk image: $ qemu-img create sda.qcow2 -f qcow2 100G Find the devices to be attached: $ lspci | grep NVIDIA ... 0004:04:00.0 3D controller: NVIDIA Corporation GV100 [Tesla V100 SXM2] (rev a1) ... Detach all devices (including devices that belong to the same IOMMU group) to be passed to the virtual machine (script detach.sh attached): $ sudo ./detach.sh 0004:04:00.0 Run the virtual machine: $ sudo qemu-system-ppc64 -nodefaults \ -chardev stdio,id=STDIO0,signal=off,mux=on \ -device spapr-vty,id=svty0,reg=0x7110,chardev=STDIO0 \ -mon id=MON0,chardev=STDIO0,mode=readline \ -nographic -vga none -enable-kvm \ -device nec-usb-xhci,id=nec-usb-xhci0 \ -m 16384M \ -chardev socket,id=SOCKET0,server,nowait,host=localhost,port=4 \ -mon chardev=SOCKET0,mode=control \ -smp 16,threads=4 \ -netdev "user,id=USER0,hostfwd=tcp::-:22" \ -device "virtio-net-pci,id=vnet0,mac=C0:41:49:4b:00:00,netdev=USER0" \ -drive file=sda.qcow2,format=qcow2,if=none,id=drive-virtio-disk0 \ -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x3,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \ -device "vfio-pci,id=vfio0004_04_00_0,host=0004:04:00.0" \ -device "vfio-pci,id=vfio0006_00_00_0,host=0006:00:00.0" \ -device "vfio-pci,id=vfio0006_00_00_1,host=0006:00:00.1" \ -device "vfio-pci,id=vfio0006_00_00_2,host=0006:00:00.2" \ -global spapr-pci-host-bridge.pgsz=0x10011000 \ -global spapr-pci-vfio-host-bridge.pgsz=0x10011000 \ -cdrom ubuntu-18.04.1-server-ppc64el.iso \ -machine pseries Install the system in the virtual machine and reboot. After booting in the installed virtual machine, download and install the drivers from cuda-repo-ubuntu1804-10-1-local-10.1.91-418.29_1.0-1_ppc64el.deb (NVidia website). With all nvidia drivers installed, check the result of the following commands: $ nvidia-smi on Nov 5 21:11:33 2018 +-+ | NVIDIA-SMI 410.72 Driver Version: 410.72 CUDA Version: 10.0 | |---+--+--+ | GPU NamePersistence-M| Bus-IdDisp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. | |===+==+==| | 0 Tesla V100-SXM2... Off | 0001:00:00.0 Off |0 | | N/A 32CP051W / 300W | 0MiB / 32480MiB | 4% Default | +---+--+--+ ... +-+ | Processes: GPU Memory | | GPU PID Type Process name Usage | |=| | No running processes found | +-+ # numactl -H available: 2 nodes (0,255) node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 node 0 size: 16332 MB node 0 free: 13781 MB node 255 cpus: node 255 size: 16128 MB node 255 free: 15190 MB node distances: node 0 255 0: 10 40 255: 40 10 [Fix] * The patchset can be found here: https://lists.ubuntu.com/archives/kernel-team/2019-March/099243.html There are 12 patches but the most important pieces are: - 8/12: https://lists.ubuntu.com/archives/kernel-team/2019-March/099250.html - 9/12: https://lists.ubuntu.com/archives/kernel-team/2019-March/099254.html NPU code already exists, so much of the work consists in update the code to NPU2 and to add the GPU memory in the numa layout. [Regression Potent
[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
** Also affects: ubuntu-power-systems Importance: Undecided Status: New ** Changed in: ubuntu-power-systems Status: New => Fix Committed ** Changed in: ubuntu-power-systems Importance: Undecided => High ** Changed in: ubuntu-power-systems Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1819989 Title: Add basic support to NVLink2 passthrough Status in The Ubuntu-power-systems project: Fix Committed Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Fix Committed Bug description: 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 18.04 (kernel + qemu). However on the guest side it will be *very important* for clients to simply download the Ubuntu 18.04 from Canonical's website and have the NVLink2 working out of the box. For that, we have worked on a small patchset using only upstream patches without changing beyond our area. As soon as I send the patchset to the mailing list I'll update this bug with a link to that message. Thank you very much, Jose R. Ziviani To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1819989/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
** Changed in: linux (Ubuntu Bionic) Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1819989 Title: Add basic support to NVLink2 passthrough Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Fix Committed Bug description: 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 18.04 (kernel + qemu). However on the guest side it will be *very important* for clients to simply download the Ubuntu 18.04 from Canonical's website and have the NVLink2 working out of the box. For that, we have worked on a small patchset using only upstream patches without changing beyond our area. As soon as I send the patchset to the mailing list I'll update this bug with a link to that message. Thank you very much, Jose R. Ziviani To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819989/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Bionic) Status: New => In Progress ** Changed in: linux (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1819989 Title: Add basic support to NVLink2 passthrough Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: In Progress Bug description: 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 18.04 (kernel + qemu). However on the guest side it will be *very important* for clients to simply download the Ubuntu 18.04 from Canonical's website and have the NVLink2 working out of the box. For that, we have worked on a small patchset using only upstream patches without changing beyond our area. As soon as I send the patchset to the mailing list I'll update this bug with a link to that message. Thank you very much, Jose R. Ziviani To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819989/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1819989 Title: Add basic support to NVLink2 passthrough Status in linux package in Ubuntu: Confirmed Bug description: 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 18.04 (kernel + qemu). However on the guest side it will be *very important* for clients to simply download the Ubuntu 18.04 from Canonical's website and have the NVLink2 working out of the box. For that, we have worked on a small patchset using only upstream patches without changing beyond our area. As soon as I send the patchset to the mailing list I'll update this bug with a link to that message. Thank you very much, Jose R. Ziviani To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819989/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1819989] Re: Add basic support to NVLink2 passthrough
The patchset is in the mailing list for review: https://lists.ubuntu.com/archives/kernel-team/2019-March/099243.html -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1819989 Title: Add basic support to NVLink2 passthrough Status in linux package in Ubuntu: Incomplete Bug description: 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 18.04 (kernel + qemu). However on the guest side it will be *very important* for clients to simply download the Ubuntu 18.04 from Canonical's website and have the NVLink2 working out of the box. For that, we have worked on a small patchset using only upstream patches without changing beyond our area. As soon as I send the patchset to the mailing list I'll update this bug with a link to that message. Thank you very much, Jose R. Ziviani To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819989/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
