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[Bug 1615722] Re: TPM driver doesn't load in qemu Windows guest

 

Thanks a lot, I tagged this up as it was dormant for too long.
I hope I get to this rather soon as I wasn't aware at all so far.

In the other bug there was some mentioning of a newer windows release fixing it (if on qemu 2.6.1).
If one could check that for this bug as well but on 2.5 that would be nice.

** Tags added: server-next

** Also affects: qemu (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: qemu (Ubuntu)
       Status: Triaged => Fix Released

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https://bugs.launchpad.net/bugs/1615722

Title:
  TPM driver doesn't load in qemu Windows guest

Status in qemu package in Ubuntu:
  Fix Released
Status in qemu source package in Xenial:
  New

Bug description:
  When passing through a TPM device to a qemu Windows 10 guest Windows
  will fail to initialize the TMP driver with the reason: 'device cannot
  find enough free resources'.  The bug was investigated and a patch
  provided upstream for qemu relesae 2.6 onwards.  See original bugzilla
  thread here https://bugzilla.redhat.com/show_bug.cgi?id=1281413.

  I've confirmed this bug also affects the stock qemu package (1:2.5
  +dfsg-5ubuntu10.4) in 16.04.  To resolve I built the qemu 2.6.1
  tarball and tested which solved the problem.

  My understanding is that qemu 2.6 is slated for 16.10 only, can this
  updated code be brought into the 16.04 LTS family also?

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: qemu-system-x86 1:2.5+dfsg-5ubuntu10.4
  ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
  Uname: Linux 4.4.0-34-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Aug 22 17:08:50 2016
  InstallationDate: Installed on 2016-04-24 (119 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic.efi.signed root=UUID=2de8fff7-85ef-4fa4-ac98-ba5118e3d3c9 ro intel_iommu=on intremap=no_x2apic_optout
  SourcePackage: qemu
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/17/2016
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P2.70
  dmi.board.name: Z97 Extreme6
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.70:bd05/17/2016:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ97Extreme6:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.
  modified.conffile..etc.modprobe.d.qemu-system-x86.conf:
   options kvm_intel nested=1
  mtime.conffile..etc.modprobe.d.qemu-system-x86.conf: 2016-08-19T21:18:23.866234

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