Public bug reported: New systems with a cpu model of gen15a or gen15b will no longer provide the csske facility. This will prevent a nested KVM hypervisor to detect the cpu type as z10..z14. Instead it will fall back to z9.
We need a backport of commit eaf6f642abf1d4d24791b70728d4068428fc4658 Author: Christian Borntraeger <borntrae...@de.ibm.com> AuthorDate: Mon Apr 29 05:02:43 2019 -0400 Commit: Cornelia Huck <coh...@redhat.com> CommitDate: Tue May 21 16:59:16 2019 +0200 s390x/cpumodel: ignore csske for expansion csske will be removed in a future machine. Ignore it for expanding the cpu model. Otherwise qemu falls back to z9. Signed-off-by: Christian Borntraeger <borntrae...@de.ibm.com> Cc: qemu-sta...@nongnu.org Reviewed-by: David Hildenbrand <da...@redhat.com> Message-Id: <20190429090250.7648-3-borntrae...@de.ibm.com> Signed-off-by: Cornelia Huck <coh...@redhat.com> diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c index e5afa15512..b4bb5de635 100644 --- a/target/s390x/cpu_models.c +++ b/target/s390x/cpu_models.c @@ -1322,6 +1322,8 @@ static void init_ignored_base_feat(void) S390_FEAT_KM_TDEA_192, S390_FEAT_KIMD_SHA_1, S390_FEAT_KLMD_SHA_1, + /* CSSKE is deprecated on newer generations */ + S390_FEAT_CONDITIONAL_SSKE, }; int i; in the qemu package of all relevant ubuntu level that provide a cpu model. (18.04, 18.10,19.04) ** Affects: ubuntu-z-systems Importance: High Assignee: Canonical Server Team (canonical-server) Status: Triaged ** Affects: qemu (Ubuntu) Importance: Undecided Assignee: Skipper Bug Screeners (skipper-screen-team) Status: New ** Tags: architecture-s39064 bugnameltc-177874 severity-high targetmilestone-inin1910 ** Tags added: architecture-s39064 bugnameltc-177874 severity-high targetmilestone-inin1910 ** Changed in: ubuntu Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team) ** Package changed: ubuntu => qemu (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1830681 Title: [UBUNTU] QEMU toleration patch necessary to run a nested KVM in an gen15 cpu model To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1830681/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs