arch/x86/kernel/machine_kexec_xen.c

   1 int machine_kexec_setup_resource(struct resource *hypervisor,
   2                                  struct resource *phys_cpu)
   3 {
   4         /* The per-cpu crash note resources belong to the hypervisor resource */
   5         insert_resource(hypervisor, phys_cpu);
   6         if (!phys_cpu->parent) /* outside of hypervisor range */
   7                 insert_resource(&iomem_resource, phys_cpu);
   8
   9         return 0;
  10 }
  11
  12 int __init machine_kexec_setup_resources(struct resource *hypervisor,
  13                                          struct resource *phys_cpus,
  14                                          int nr_phys_cpus)
  15 {
  16         unsigned int k;
  17
  18         insert_resource(&iomem_resource, hypervisor);
  19         if (crashk_res.end > crashk_res.start)
  20                 insert_resource(&iomem_resource, &crashk_res);
  21
  22         for (k = 0; k < nr_phys_cpus; k++)
  23                 machine_kexec_setup_resource(hypervisor, phys_cpus + k);
  24
  25         return xen_create_contiguous_region((unsigned long)&vmcoreinfo_note,
  26                                             get_order(sizeof(vmcoreinfo_note)),
  27                                             BITS_PER_LONG);
  28
  29 }