diff options
| -rw-r--r-- | arch/x86/xen/smp_pv.c | 37 |
1 files changed, 10 insertions, 27 deletions
diff --git a/arch/x86/xen/smp_pv.c b/arch/x86/xen/smp_pv.c index 7f6f34056e13..98849b3f5eac 100644 --- a/arch/x86/xen/smp_pv.c +++ b/arch/x86/xen/smp_pv.c @@ -29,6 +29,7 @@ #include <asm/idtentry.h> #include <asm/desc.h> #include <asm/cpu.h> +#include <asm/apic.h> #include <asm/io_apic.h> #include <xen/interface/xen.h> @@ -150,34 +151,16 @@ int xen_smp_intr_init_pv(unsigned int cpu) static void __init xen_pv_smp_config(void) { - int i, rc; - unsigned int subtract = 0; - - 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); - subtract++; - } + u32 apicid = 0; + int i; + + topology_register_boot_apic(apicid++); + + for (i = 1; i < nr_cpu_ids; i++) { + if (HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL) < 0) + break; + topology_register_apic(apicid++, CPU_ACPIID_INVALID, true); } -#ifdef CONFIG_HOTPLUG_CPU - /* This is akin to using 'nr_cpus' on the Linux command line. - * Which is OK as when we use 'dom0_max_vcpus=X' we can only - * have up to X, while nr_cpu_ids is greater than X. This - * normally is not a problem, except when CPU hotplugging - * is involved and then there might be more than X CPUs - * in the guest - which will not work as there is no - * hypercall to expand the max number of VCPUs an already - * running guest has. So cap it up to X. */ - if (subtract) - set_nr_cpu_ids(nr_cpu_ids - subtract); -#endif /* Pretend to be a proper enumerated system */ smp_found_config = 1; } |