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authorGreg Kurz <gkurz@linux.vnet.ibm.com>2015-07-02 16:23:02 +1000
committerAlexander Graf <agraf@suse.de>2015-07-07 17:44:49 +0200
commitf303f117fec32c0705f88860e3eadf94135211c9 (patch)
tree61282cfbe830f8e17fefc5d81cf035a3ce966393 /LICENSE
parent2d103aae876518a91636ad6f4a4d866269c0d953 (diff)
spapr: ensure we have at least one XICS server
XICS needs to know the upper value for cpu_index as it is used to compute the number of servers: smp_cpus * kvmppc_smt_threads() / smp_threads When passing -smp cpus=1,threads=9 on a POWER8 host, we end up with: 1 * 8 / 9 = 0 ... which leads to an assertion in both emulated: Number of servers needs to be greater 0 Aborted (core dumped) ... and in-kernel XICS: xics_kvm_realize: Assertion `icp->nr_servers' failed. Aborted (core dumped) With this patch, we are sure that nr_servers > 0. Passing the same bogus -smp option then leads to: qemu-system-ppc64: Cannot support more than 8 threads on PPC with KVM ... which is a lot more explicit than the XICS errors. Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'LICENSE')
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