LXR linux/arch/x86/xen/suspend.c

   1#include <linux/types.h>
   2
   3#include <xen/interface/xen.h>
   4#include <xen/grant_table.h>
   5#include <xen/events.h>
   6
   7#include <asm/xen/hypercall.h>
   8#include <asm/xen/page.h>
   9#include <asm/fixmap.h>
  10
  11#include "xen-ops.h"
  12#include "mmu.h"
  13
  14void xen_pre_suspend(void)
  15{
  16        xen_start_info->store_mfn = mfn_to_pfn(xen_start_info->store_mfn);
  17        xen_start_info->console.domU.mfn =
  18                mfn_to_pfn(xen_start_info->console.domU.mfn);
  19
  20        BUG_ON(!irqs_disabled());
  21
  22        HYPERVISOR_shared_info = &xen_dummy_shared_info;
  23        if (HYPERVISOR_update_va_mapping(fix_to_virt(FIX_PARAVIRT_BOOTMAP),
  24                                         __pte_ma(0), 0))
  25                BUG();
  26}
  27
  28void xen_post_suspend(int suspend_cancelled)
  29{
  30        xen_setup_shared_info();
  31
  32        if (suspend_cancelled) {
  33                xen_start_info->store_mfn =
  34                        pfn_to_mfn(xen_start_info->store_mfn);
  35                xen_start_info->console.domU.mfn =
  36                        pfn_to_mfn(xen_start_info->console.domU.mfn);
  37        } else {
  38#ifdef CONFIG_SMP
  39                BUG_ON(xen_cpu_initialized_map == NULL);
  40                cpumask_copy(xen_cpu_initialized_map, cpu_online_mask);
  41#endif
  42                xen_vcpu_restore();
  43        }
  44
  45}
  46
  47void xen_arch_resume(void)
  48{
  49        /* nothing */
  50}
  51