linux/arch/x86/xen/suspend.c
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   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
  10#include "xen-ops.h"
  11#include "mmu.h"
  12
  13void xen_pre_suspend(void)
  14{
  15        xen_start_info->store_mfn = mfn_to_pfn(xen_start_info->store_mfn);
  16        xen_start_info->console.domU.mfn =
  17                mfn_to_pfn(xen_start_info->console.domU.mfn);
  18
  19        BUG_ON(!irqs_disabled());
  20
  21        HYPERVISOR_shared_info = &xen_dummy_shared_info;
  22        if (HYPERVISOR_update_va_mapping(fix_to_virt(FIX_PARAVIRT_BOOTMAP),
  23                                         __pte_ma(0), 0))
  24                BUG();
  25}
  26
  27void xen_post_suspend(int suspend_cancelled)
  28{
  29        xen_setup_shared_info();
  30
  31        if (suspend_cancelled) {
  32                xen_start_info->store_mfn =
  33                        pfn_to_mfn(xen_start_info->store_mfn);
  34                xen_start_info->console.domU.mfn =
  35                        pfn_to_mfn(xen_start_info->console.domU.mfn);
  36        } else {
  37#ifdef CONFIG_SMP
  38                xen_cpu_initialized_map = cpu_online_map;
  39#endif
  40                xen_vcpu_restore();
  41        }
  42
  43}
  44
  45void xen_arch_resume(void)
  46{
  47        /* nothing */
  48}
  49