3 #include <xen/events.h>
9 static void __init
xen_hvm_smp_prepare_boot_cpu(void)
11 BUG_ON(smp_processor_id() != 0);
12 native_smp_prepare_boot_cpu();
15 * Setup vcpu_info for boot CPU. Secondary CPUs get their vcpu_info
16 * in xen_cpu_up_prepare_hvm().
21 * The alternative logic (which patches the unlock/lock) runs before
22 * the smp bootup up code is activated. Hence we need to set this up
23 * the core kernel is being patched. Otherwise we will have only
24 * modules patched but not core code.
29 static void __init
xen_hvm_smp_prepare_cpus(unsigned int max_cpus
)
33 native_smp_prepare_cpus(max_cpus
);
34 WARN_ON(xen_smp_intr_init(0));
38 for_each_possible_cpu(cpu
) {
42 /* Set default vcpu_id to make sure that we don't use cpu-0's */
43 per_cpu(xen_vcpu_id
, cpu
) = XEN_VCPU_ID_INVALID
;
47 #ifdef CONFIG_HOTPLUG_CPU
48 static void xen_hvm_cpu_die(unsigned int cpu
)
50 if (common_cpu_die(cpu
) == 0) {
51 xen_smp_intr_free(cpu
);
52 xen_uninit_lock_cpu(cpu
);
53 xen_teardown_timer(cpu
);
57 static void xen_hvm_cpu_die(unsigned int cpu
)
63 void __init
xen_hvm_smp_init(void)
65 if (!xen_have_vector_callback
)
68 smp_ops
.smp_prepare_cpus
= xen_hvm_smp_prepare_cpus
;
69 smp_ops
.smp_send_reschedule
= xen_smp_send_reschedule
;
70 smp_ops
.cpu_die
= xen_hvm_cpu_die
;
71 smp_ops
.send_call_func_ipi
= xen_smp_send_call_function_ipi
;
72 smp_ops
.send_call_func_single_ipi
= xen_smp_send_call_function_single_ipi
;
73 smp_ops
.smp_prepare_boot_cpu
= xen_hvm_smp_prepare_boot_cpu
;
74 smp_ops
.smp_cpus_done
= xen_smp_cpus_done
;