Merge branch 'master' of git://git.kernel.org/pub/scm/fs/xfs/xfs
[linux-2.6] / 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
14 void 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
28 void 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
47 void xen_arch_resume(void)
48 {
49         /* nothing */
50 }