This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1967894
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
--
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/1967894
Title:
KVM IPI Virtualization support for SPR
Status in linux package in Ubuntu:
Incomplete
Bug description:
IPI virtualization targets to make the processor emulate the write to APIC
registers that would send IPIs in virtualized system.
VMX provide new VM-execution control and VMCS field to support IPI
virtualization which can eliminate APIC-Write VM-exit.
The processor sets the bit corresponding to the vector in target vCPU's PIR
and may send a notification (IPI) specified by NDST
and NV fields in target vCPU's PID. It is similar to what IOMMU engine does
when dealing with posted interrupt from devices.
IPI Virtualization is approved in SPR/EGS CCB and it is supposed to
be enabled in C-step or later (perhaps D-step).
Subject: Re: [PATCH v7 8/8] KVM: VMX: enable IPI virtualization
https://lore.kernel.org/kvm/54df6da8-ad68-cc75-48db-d18fc8743...@intel.com/
Target Linux 5.18
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1967894/+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
