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[Bug 1528849] Re: PCI passthrough of LSI card fails


52f518a3a7c2f80551a38d38be28bc9f335e713c is the first bad commit
commit 52f518a3a7c2f80551a38d38be28bc9f335e713c
Author: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
Date:   Mon Apr 13 14:11:35 2015 +0800

    x86/MSI: Use hierarchical irqdomains to manage MSI interrupts
    Enhance MSI code to support hierarchical irqdomains, it helps to make
    the architecture more clear.
    Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
    Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
    Cc: David Cohen <david.a.cohen@xxxxxxxxxxxxxxx>
    Cc: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>
    Cc: David Vrabel <david.vrabel@xxxxxxxxxx>
    Cc: Tony Luck <tony.luck@xxxxxxxxx>
    Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
    Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx
    Cc: Joerg Roedel <jroedel@xxxxxxx>
    Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
    Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
    Cc: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>
    Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
    Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
    Cc: Borislav Petkov <bp@xxxxxxxxx>
    Cc: Dimitri Sivanich <sivanich@xxxxxxx>
    Cc: Joerg Roedel <joro@xxxxxxxxxx>
    Link: http://lkml.kernel.org/r/1428905519-23704-14-git-send-email-jiang.liu@xxxxxxxxxxxxxxx
    Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

:040000 040000 786bcad9a3fad413e0b744e2cfa20da7ff402db6 22618cac66dee85a7752bb3af81169fff3a242d8 M	arch
:040000 040000 acee54015803d4cd52d582a9e5e93aa56ad08482 40d2c7a02c0f8677e596c98c936404b2211336a3 M	drivers

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  PCI passthrough of LSI card fails

Status in linux package in Ubuntu:

Bug description:
  Using ESXi version 6. With an Ubuntu 14.04 guest, passthrough works
  fine. With Ubuntu 15.10, the card is passed through but boot is slow
  and there are time outs reporting in logs. Disk devices do not show up
  in guest OS. This can also be seen during a fresh install/live CD boot
  of Ubuntu 15.10 vs 14.04.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-22-generic 4.2.0-22.27
  ProcVersionSignature: Ubuntu 4.2.0-22.27-generic 4.2.6
  Uname: Linux 4.2.0-22-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CurrentDesktop: Unity
  Date: Wed Dec 23 08:08:00 2015
  HibernationDevice: RESUME=UUID=248cfbbc-0996-420e-a7f8-48d7ec14f334
  InstallationDate: Installed on 2015-12-22 (0 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
   eno16780032  no wireless extensions.

   lo        no wireless extensions.
  Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
  MachineType: VMware, Inc. VMware Virtual Platform
  ProcFB: 0 svgadrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-22-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash
   linux-restricted-modules-4.2.0-22-generic N/A
   linux-backports-modules-4.2.0-22-generic  N/A
   linux-firmware                            1.149.3

  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/30/2014
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: 6.00
  dmi.board.name: 440BX Desktop Reference Platform
  dmi.board.vendor: Intel Corporation
  dmi.board.version: None
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 1
  dmi.chassis.vendor: No Enclosure
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd09/30/2014:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
  dmi.product.name: VMware Virtual Platform
  dmi.product.version: None
  dmi.sys.vendor: VMware, Inc.

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