Hello, this patch e90e51d5f01d ("KVM: VMX: clear vmx_x86_ops.sync_pir_to_irr if APICv is disabled") has been applied to our master-next branch of Impish tree.
commit 1b611352fd6fd42a5a672f52f5f3035d48b3cd13 Author: Paolo Bonzini <pbonz...@redhat.com> Date: Tue Nov 30 07:36:41 2021 -0500 KVM: VMX: clear vmx_x86_ops.sync_pir_to_irr if APICv is disabled BugLink: https://bugs.launchpad.net/bugs/1958287 [ Upstream commit e90e51d5f01d2baae5dcce280866bbb96816e978 ] There is nothing to synchronize if APICv is disabled, since neither other vCPUs nor assigned devices can set PIR.ON. Signed-off-by: Paolo Bonzini <pbonz...@redhat.com> Signed-off-by: Sasha Levin <sas...@kernel.org> Signed-off-by: Kamal Mostafa <ka...@canonical.com> Signed-off-by: Stefan Bader <stefan.ba...@canonical.com> It should be included in 5.13.0-40.45 of SRU cycle 2022 03/21 (tracking bug lp:1966701) I would suggest you to give this proposed kernel a try. Also, can you provide us the step to reproduce this? I can't reproduce this on an clean Impish bare-metal system running with 5.13.0-39-generic with our KVM smoke test (which utilize uvt-kvm to create the KVM instance). It would be nice to improve the test coverage with it. Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1966499 Title: Recent 5.13 kernel has broken KVM support To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1966499/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs