Public bug reported: == Comment: #0 - Breno Henrique Leitao <[email protected]> - 2017-02-14 10:03:03 == We don't support transactional memory in PR KVM, so don't tell the OS that we do.
These are the required patches: commit 2e68f28854f0120c9a938a61b64aaf1eaecb162b Author: Thomas Huth <[email protected]> Date: Wed Sep 28 13:16:30 2016 +0200 ppc: Check the availability of transactional memory KVM-PR currently does not support transactional memory, and the implementation in TCG is just a fake. We should not announce TM support in the ibm,pa-features property when running on such a system, so disable it by default and only enable it if the KVM implementation supports it (i.e. recent versions of KVM-HV). These changes are based on some earlier work from Anton Blanchard (thanks!). Signed-off-by: Thomas Huth <[email protected]> Reviewed-by: C?dric Le Goater <[email protected]> Signed-off-by: David Gibson <[email protected]> (cherry picked from commit bac3bf287ab60e264b636f5f00c116a19b655762) commit 45a4f18e2ec40b96893c780c28ab18c246906355 Author: Thomas Huth <[email protected]> Date: Wed Sep 28 13:16:29 2016 +0200 hw/ppc/spapr: Fix the selection of the processor features The current code uses pa_features_206 for POWERPC_MMU_2_06, and for everything else, it uses pa_features_207. This is bad in some cases because there is also a "degraded" MMU version of ISA 2.06, called POWERPC_MMU_2_06a, which should of course use the flags for 2.06 instead. And there is also the possibility that the user runs the pseries machine with a POWER5+ or even 970 processor. In that case we certainly do not want to set the flags for 2.07, and rather simply skip the setting of the pa-features property instead. Signed-off-by: Thomas Huth <[email protected]> Reviewed-by: C?dric Le Goater <[email protected]> Signed-off-by: David Gibson <[email protected]> (cherry picked from commit 4cbec30d769a73853b60dc7f275e6e7da9ab5162) commit 5c179666057a7568306062e2cd030042a25eb57a Author: Thomas Huth <[email protected]> Date: Wed Sep 28 13:16:28 2016 +0200 hw/ppc/spapr: Move code related to "ibm,pa-features" to a separate function The function spapr_populate_cpu_dt() has become quite big already, and since we likely have to extend the pa-features property for every new processor generation, it is nicer if we put the related code into a separate function. Signed-off-by: Thomas Huth <[email protected]> Reviewed-by: C?dric Le Goater <[email protected]> Signed-off-by: David Gibson <[email protected]> (cherry picked from commit 230bf719d3a3b144a4ffa441e5d6170ef0ad8999) ** Affects: qemu (Ubuntu) Importance: Undecided Assignee: Taco Screen team (taco-screen-team) Status: New ** Tags: architecture-ppc64le bugnameltc-151465 severity-high targetmilestone-inin16042 ** Tags added: architecture-ppc64le bugnameltc-151465 severity-high targetmilestone-inin16042 ** Changed in: ubuntu Assignee: (unassigned) => Taco Screen team (taco-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/1664622 Title: qemu: Missing transaction memory advertisement To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1664622/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
