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| author | Vasilis Liaskovitis | 2011-10-26 14:19:00 +0200 |
|---|---|---|
| committer | Marcelo Tosatti | 2011-12-22 17:53:01 +0100 |
| commit | 991dfefdee8f4d1405f4b3cd799e7579f54b6c9f (patch) | |
| tree | 5eb81bb8a43e25c63278dcc6f0bed9abffa75a01 /osdep.c | |
| parent | kvm: x86: Drop redundant apic base and tpr update from kvm_get_sregs (diff) | |
| download | qemu-991dfefdee8f4d1405f4b3cd799e7579f54b6c9f.tar.gz qemu-991dfefdee8f4d1405f4b3cd799e7579f54b6c9f.tar.xz qemu-991dfefdee8f4d1405f4b3cd799e7579f54b6c9f.zip | |
Set numa topology for max_cpus
qemu-kvm passes numa/SRAT topology information for smp_cpus to SeaBIOS. However
SeaBIOS always expects to setup max_cpus number of SRAT cpu entries
(MaxCountCPUs variable in build_srat function of Seabios). When qemu-kvm runs
with smp_cpus != max_cpus (e.g. -smp 2,maxcpus=4), Seabios will mistakenly use
memory SRAT info for setting up CPU SRAT entries for the offline CPUs. Wrong
SRAT memory entries are also created. This breaks NUMA in a guest.
Fix by setting up SRAT info for max_cpus in qemu-kvm.
Signed-off-by: Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'osdep.c')
0 files changed, 0 insertions, 0 deletions