tree 0c7a4b44dc46d2dc66ac6822fde3bf9f12f14bbc
parent 0e058e527784a9a23f7ed7a73ffafebb53a889da
author Stefano Stabellini <stefano.stabellini@eu.citrix.com> 1288110513 +0100
committer Stefano Stabellini <stefano.stabellini@eu.citrix.com> 1288121595 +0100

xen: initialize cpu masks for pv guests in xen_smp_init

Pv guests don't have ACPI and need the cpu masks to be set
correctly as early as possible so we call xen_fill_possible_map from
xen_smp_init.
On the other hand the initial domain supports ACPI so in this case we skip
xen_fill_possible_map and rely on it. However Xen might limit the number
of cpus usable by the domain, so we filter those masks during smp
initialization using the VCPUOP_is_up hypercall.
It is important that the filtering is done before
xen_setup_vcpu_info_placement.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>