qemu requires that the topology equals to the maximum vcpu count.
Document this along with the API to set maximum vcpu count and the XML
element.
Resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=1426220
---
docs/formatdomain.html.in | 5 ++++-
src/libvirt-domain.c | 3 ++-
tools/virsh.pod | 3 ++-
3 files changed, 8 insertions(+), 3 deletions(-)