From 14fa9e2f0916742bf436e84895a3523551d325f5 Mon Sep 17 00:00:00 2001 From: Zhenzhong Duan Date: Thu, 27 Oct 2011 22:28:59 -0700 Subject: [PATCH] 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 Signed-off-by: Zhenzhong Duan Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Greg Kroah-Hartman --- arch/x86/xen/enlighten.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 2d69617950f7..46c8069ae98f 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1355,7 +1355,7 @@ 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; @@ -1385,7 +1385,6 @@ 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(); -- 2.39.5