On Thu, Oct 27, 2011 at 10:28:59PM -0700, zhenzhong.duan@xxxxxxxxxx wrote:
> pvhvm running with more than 32 vcpus and pv_irq/pv_time enabled
> need vcpu placement to work, or else it will softlockup.
Stefano?
>
> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxxx>
> ---
> diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
> index da8afd5..1f92865 100644
> --- a/arch/x86/xen/enlighten.c
> +++ b/arch/x86/xen/enlighten.c
> @@ -1356,7 +1356,7 @@ 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;
> @@ -1386,7 +1386,6 @@ 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();
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