** Changed in: linux (Ubuntu Zesty)
       Status: In Progress => Won't Fix

** Changed in: linux (Ubuntu Xenial)
       Status: In Progress => Incomplete

** Changed in: linux (Ubuntu)
       Status: In Progress => Incomplete

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https://bugs.launchpad.net/bugs/1682665

Title:
  [Hyper-V] PCI passthrough fixes for 32 or more CPUs

Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Xenial:
  Incomplete
Status in linux source package in Yakkety:
  Won't Fix
Status in linux source package in Zesty:
  Won't Fix

Bug description:
  The following set of patches are needed for SR-IOV on larger VM sizes
  on Hyper-V, especially with more than 32 CPUs. Some of these patches
  were already pulled in as SAUCE for SR-IOV in Azure previously.

  https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-
  next.git/commit/?id=22e2495b76dbe398540faf355a541b10faad33b9

  Merge branch 'pci/host-hv' into next
  * pci/host-hv:
    PCI: hv: Allocate interrupt descriptors with GFP_ATOMIC
    PCI: hv: Specify CPU_AFFINITY_ALL for MSI affinity when >= 32 CPUs
    PCI: hv: Lock PCI bus on device eject
    PCI: hv: Properly handle PCI bus remove

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