[Kernel-packages] [Bug 1954474] Re: KVM notify VM Exit

2022-02-11 Thread Launchpad Bug Tracker
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

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

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Title:
  KVM notify VM Exit

Status in linux package in Ubuntu:
  Expired

Bug description:
  A VMM can enable notification VM exits to occur if no interrupt
  windows occur in VMX non-root operation for a specified amount of time
  (notify window).


  KVM Enabling:

  enable bit 31 of secondary processor-based excution control.
  enable notification VM exit (exit reason 75) handler.
  expose a module param to configure notify window and disable/enable VM notify.

  Target Linux 5.17

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[Kernel-packages] [Bug 1954474] Re: KVM notify VM Exit

2021-12-13 Thread Paul Lai
Thanks for correcting pkg names.

No upstream commits yet. Target Linux 5.17 timeframe. Target Ubuntu
22.04.

Platform is Sapphire Rapids

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https://bugs.launchpad.net/bugs/1954474

Title:
  KVM notify VM Exit

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  A VMM can enable notification VM exits to occur if no interrupt
  windows occur in VMX non-root operation for a specified amount of time
  (notify window).


  KVM Enabling:

  enable bit 31 of secondary processor-based excution control.
  enable notification VM exit (exit reason 75) handler.
  expose a module param to configure notify window and disable/enable VM notify.

  Target Linux 5.17

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[Kernel-packages] [Bug 1954474] Re: KVM notify VM Exit

2021-12-13 Thread Christian Ehrhardt 
** Tags added: intel-bug-december-2021

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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1954474

Title:
  KVM notify VM Exit

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  A VMM can enable notification VM exits to occur if no interrupt
  windows occur in VMX non-root operation for a specified amount of time
  (notify window).


  KVM Enabling:

  enable bit 31 of secondary processor-based excution control.
  enable notification VM exit (exit reason 75) handler.
  expose a module param to configure notify window and disable/enable VM notify.

  Target Linux 5.17

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[Kernel-packages] [Bug 1954474] Re: KVM notify VM Exit

2021-12-13 Thread Christian Ehrhardt 
Hi Paul,
Bugs in launchpad are filed against source packages, and "src:kvm" doesn't 
exist for more than 8 years now :-) Instead you'd want to file it against the 
package the code is in, in your case most likely src:qemu [1] or src:linux [2].

Also you should talk about the target Ubuntu release you want the fix to
be in. I assume from the type of bug that you want to feature request
for the coming LTS Ubuntu 22.04 - but please clarify to be sure.

Finally referencing to features/commits works much better if you could
please include the hashes of the commits. Please consider doing so once
they exist upstream. If they are not existing there someone needs to
provide the patches upfront and convince the team that they are stable
enough to be picked up.

The referred kernel version is in the future, so that might be a normal bug for 
a new feature.
I'll re-assign this to src:linux for now as your bug indicates that is the 
target.

[1]: https://bugs.launchpad.net/ubuntu/+source/qemu
[2]: https://bugs.launchpad.net/ubuntu/+source/linux

** Package changed: kvm (Ubuntu) => linux (Ubuntu)

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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/1954474

Title:
  KVM notify VM Exit

Status in linux package in Ubuntu:
  New

Bug description:
  A VMM can enable notification VM exits to occur if no interrupt
  windows occur in VMX non-root operation for a specified amount of time
  (notify window).


  KVM Enabling:

  enable bit 31 of secondary processor-based excution control.
  enable notification VM exit (exit reason 75) handler.
  expose a module param to configure notify window and disable/enable VM notify.

  Target Linux 5.17

To manage notifications about this bug go to:
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