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authorLaurent Vivier <lvivier@redhat.com>2018-02-09 09:18:58 +0100
committerDavid Gibson <david@gibson.dropbear.id.au>2018-02-10 20:22:02 +1100
commit4ad64cbd0c3f9df15be5f7d1c920285551e802ca (patch)
tree7ee976766ddfc176584febdc2f29303969921ef3 /hw
parentae14d81757945a8298a34e00e82abe68d90644e7 (diff)
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spapr: set vsmt to MAX(8, smp_threads)
We ignore silently the value of smp_threads when we set the default VSMT value, and if smp_threads is greater than VSMT kernel is going into trouble later. Fixes: 8904e5a750 ("spapr: Adjust default VSMT value for better migration compatibility") Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw')
-rw-r--r--hw/ppc/spapr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 9651503..9f29434 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -2310,7 +2310,7 @@ static void spapr_set_vsmt_mode(sPAPRMachineState *spapr, Error **errp)
* the value that we'd get with KVM on POWER8, the
* overwhelmingly common case in production systems.
*/
- spapr->vsmt = 8;
+ spapr->vsmt = MAX(8, smp_threads);
}
/* KVM: If necessary, set the SMT mode: */