Since this works (using disable_radix thanks leonardo) in Cosmic and
also through the HWE kernel on Bionic I think there is no more work
needed. The trigger was P9 HW which is fine for this specific (and
uncommon) function to define the HWE kernel as requirement.
** Changed in: qemu (Ubuntu Cosmic
** Also affects: qemu (Ubuntu Cosmic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Cosmic)
Importance: Undecided
Status: New
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** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
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https://bugs.launchpad.net/bugs/1778854
Title:
kvm_pr on power9
** Changed in: ubuntu-power-systems
Importance: Medium => Wishlist
** Tags removed: targetmilestone-inin1804
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Title:
kvm_pr on p
** Tags added: reverse-proxy-bugzilla targetmilestone-inin1804
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Title:
kvm_pr on power9 not loadable
Status in The Ubuntu-power-sys
--- Comment From lagar...@br.ibm.com 2019-02-06 06:59 EDT---
Just an additional information: starting with linux 4.20 and QEMU 3.1 one can
created nested guests on RPT guests as well using kvm_hv (kvm_pr will not work
with RPT).
** Tags removed: targetmilestone-inin---
** Tags added: tar
Interesting, thanks Leonardo!
Tested on Bionic (4.15) and Disco (4.18).
Default:
sudo modprobe kvm_pr
modprobe: ERROR: could not insert 'kvm_pr': Input/output error
Added "disable_radix" to the guest kernel commandline and retried loading the
module again.
Bionic: Malformed early option 'disable
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