diff options
| author | Greg Kurz <groug@kaod.org> | 2019-10-03 14:02:00 +0200 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-10-24 09:36:55 +1100 |
| commit | 29cb4187497dcc6be80c9cd2a87764be89d940f6 (patch) | |
| tree | 94b83e02725bbf7f65633dfb60f9de446a2c91c9 /include/hw | |
| parent | 06d26eeb47de96c0fa0cc1d5e95124b0a809b3ac (diff) | |
spapr: Set VSMT to smp_threads by default
Support for setting VSMT is available in KVM since linux-4.13. Most distros
that support KVM on POWER already have it. It thus seem reasonable enough
to have the default machine to set VSMT to smp_threads.
This brings contiguous VCPU ids and thus brings their upper bound down to
the machine's max_cpus. This is especially useful for XIVE KVM devices,
which may thus allocate only one VP descriptor per VCPU.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157010411885.246126.12610015369068227139.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/ppc/spapr.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index cbd1a4c9f3..2009eb64f9 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -122,6 +122,7 @@ struct SpaprMachineClass { bool broken_host_serial_model; /* present real host info to the guest */ bool pre_4_1_migration; /* don't migrate hpt-max-page-size */ bool linux_pci_probe; + bool smp_threads_vsmt; /* set VSMT to smp_threads by default */ void (*phb_placement)(SpaprMachineState *spapr, uint32_t index, uint64_t *buid, hwaddr *pio, |