------- Comment From [email protected] 2018-04-02 19:22 EDT------- The patches that make it possible to use HTM in guests running on POWER9 processors are now in the PowerPC kernel maintainer tree and will be requested to get merged into kernel 4.17:
681c617b7c42 KVM: PPC: Book3S HV: Work around TEXASR bug in fake suspend state 87a11bb6a7f7 KVM: PPC: Book3S HV: Work around XER[SO] bug in fake suspend mode 4bb3c7a0208f KVM: PPC: Book3S HV: Work around transactional memory bugs in POWER9 7672691a08c8 powerpc/powernv: Provide a way to force a core into SMT4 mode b5af4f279323 powerpc: Add CPU feature bits for TM bug workarounds on POWER9 v2.2 9bbf0b576d32 powerpc: Free up CPU feature bits on 64-bit machines dd0efb3f11cc powerpc: Book E: Remove unused CPU_FTR_L2CSR bit c0d64cf9fefd powerpc: Use feature bit for RTC presence rather than timebase presence Fom Paul Mackerras: for a backport, we can probably avoid the feature bit rework, I hope, and just find two free CPU feature bits. If there aren't 2 free feature bits then let me know, we might be able to scavenge some that are only used on Book E or something. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1752026 Title: Ubuntu18.04:POWER9:DD2.2 - Unable to start a KVM guest with default machine type(pseries-bionic) complaining "KVM implementation does not support Transactional Memory, try cap-htm=off" (kvm) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1752026/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
