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xen: use vcpu_ops to setup cpu masks

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Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Stefano Stabellini 2010-09-23 12:06:25 +01:00
parent 98511f3532
commit 801fd14a72
1 changed files with 7 additions and 1 deletions
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8
arch/x86/xen/smp.c
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@ -156,11 +156,16 @@ static void __init xen_fill_possible_map(void)
{
int i, rc;
num_processors = 0;
disabled_cpus = 0;
for (i = 0; i < nr_cpu_ids; i++) {
rc = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL);
if (rc >= 0) {
num_processors++;
set_cpu_possible(i, true);
} else {
set_cpu_possible(i, false);
set_cpu_present(i, false);
}
}
}
@ -190,6 +195,8 @@ static void __init xen_smp_prepare_cpus(unsigned int max_cpus)
if (xen_smp_intr_init(0))
BUG();
xen_fill_possible_map();
if (!alloc_cpumask_var(&xen_cpu_initialized_map, GFP_KERNEL))
panic("could not allocate xen_cpu_initialized_map\n");
@ -480,6 +487,5 @@ static const struct smp_ops xen_smp_ops __initdata = {
void __init xen_smp_init(void)
{
smp_ops = xen_smp_ops;
xen_fill_possible_map();
xen_init_spinlocks();
}