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authorZhenzhong Duan <zhenzhong.duan@oracle.com>2011-10-27 22:28:59 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2011-11-21 14:31:23 -0800
commit66e85a1675dc6d4e05e0fd152ef1ad485b3fb985 (patch)
tree4d0b23c334830c32f1725e9dc1642a838ba45362
parent11b8fc6ae54bf18a48c94e181c37ca135b858b42 (diff)
xen:pvhvm: enable PVHVM VCPU placement when using more than 32 CPUs.
commit 90d4f5534d14815bd94c10e8ceccc57287657ecc upstream. PVHVM running with more than 32 vcpus and pv_irq/pv_time enabled need VCPU placement to work, or else it will softlockup. Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--arch/x86/xen/enlighten.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 67d69f1e2b73..0fb662abcebc 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1337,7 +1337,7 @@ static int __cpuinit xen_hvm_cpu_notify(struct notifier_block *self,
int cpu = (long)hcpu;
switch (action) {
case CPU_UP_PREPARE:
- per_cpu(xen_vcpu, cpu) = &HYPERVISOR_shared_info->vcpu_info[cpu];
+ xen_vcpu_setup(cpu);
if (xen_have_vector_callback)
xen_init_lock_cpu(cpu);
break;
@@ -1367,7 +1367,6 @@ static void __init xen_hvm_guest_init(void)
xen_hvm_smp_init();
register_cpu_notifier(&xen_hvm_cpu_notifier);
xen_unplug_emulated_devices();
- have_vcpu_info_placement = 0;
x86_init.irqs.intr_init = xen_init_IRQ;
xen_hvm_init_time_ops();
xen_hvm_init_mmu_ops();