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| author | David Gibson | 2017-05-23 08:33:06 +0200 |
|---|---|---|
| committer | David Gibson | 2017-05-24 03:39:53 +0200 |
| commit | 459264ef24cf2d409b8baf2047fa86e697d6e9ab (patch) | |
| tree | eac8ed3d2b70ca2179f6a022a90f6400f9d8b058 /include/exec/memory.h | |
| parent | pseries: Split CAS PVR negotiation out into a separate function (diff) | |
| download | qemu-459264ef24cf2d409b8baf2047fa86e697d6e9ab.tar.gz qemu-459264ef24cf2d409b8baf2047fa86e697d6e9ab.tar.xz qemu-459264ef24cf2d409b8baf2047fa86e697d6e9ab.zip | |
pseries: Restore support for total vcpus not a multiple of threads-per-core for old machine types
As of pseries-2.7 and later, we require the total number of guest vcpus to
be a multiple of the threads-per-core. pseries-2.6 and earlier machine
types, however, are supposed to allow this for the sake of migration from
old qemu versions which allowed this.
Unfortunately, 8149e29 "pseries: Enforce homogeneous threads-per-core"
broke this by not considering the old machine type case. This fixes it by
only applying the check when the machine type supports hotpluggable cpus.
By not-entirely-coincidence, that corresponds to the same time when we
started enforcing total threads being a multiple of threads-per-core.
Fixes: 8149e2992f7811355cc34721b79d69d1a3a667dd
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Greg Kurz <groug@kaod.org>
Diffstat (limited to 'include/exec/memory.h')
0 files changed, 0 insertions, 0 deletions