projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 0e91398f | 1 | #include <linux/types.h> |
| f6eafe36 | 2 | #include <linux/clockchips.h> |
| 0e91398f JF |
3 | |
| 4 | #include <xen/interface/xen.h> | |
| 5 | #include <xen/grant_table.h> | |
| 6 | #include <xen/events.h> | |
| 7 | ||
| 8 | #include <asm/xen/hypercall.h> | |
| 9 | #include <asm/xen/page.h> | |
| 99d0000f | 10 | #include <asm/fixmap.h> |
| 0e91398f JF |
11 | |
| 12 | #include "xen-ops.h" | |
| 13 | #include "mmu.h" | |
| 14 | ||
| aa8532c3 | 15 | static void xen_pv_pre_suspend(void) |
| 0e91398f | 16 | { |
| aa8532c3 DV |
17 | xen_mm_pin_all(); |
| 18 | ||
| 0e91398f JF |
19 | xen_start_info->store_mfn = mfn_to_pfn(xen_start_info->store_mfn); |
| 20 | xen_start_info->console.domU.mfn = | |
| 21 | mfn_to_pfn(xen_start_info->console.domU.mfn); | |
| 22 | ||
| 23 | BUG_ON(!irqs_disabled()); | |
| 24 | ||
| 25 | HYPERVISOR_shared_info = &xen_dummy_shared_info; | |
| 26 | if (HYPERVISOR_update_va_mapping(fix_to_virt(FIX_PARAVIRT_BOOTMAP), | |
| 27 | __pte_ma(0), 0)) | |
| 28 | BUG(); | |
| 29 | } | |
| 30 | ||
| aa8532c3 | 31 | static void xen_hvm_post_suspend(int suspend_cancelled) |
| 016b6f5f | 32 | { |
| e057a4b6 | 33 | #ifdef CONFIG_XEN_PVHVM |
| 409771d2 | 34 | int cpu; |
| e9daff24 | 35 | xen_hvm_init_shared_info(); |
| 016b6f5f | 36 | xen_callback_vector(); |
| 512b109e | 37 | xen_unplug_emulated_devices(); |
| 409771d2 SS |
38 | if (xen_feature(XENFEAT_hvm_safe_pvclock)) { |
| 39 | for_each_online_cpu(cpu) { | |
| 40 | xen_setup_runstate_info(cpu); | |
| 41 | } | |
| 42 | } | |
| e057a4b6 | 43 | #endif |
| 016b6f5f SS |
44 | } |
| 45 | ||
| aa8532c3 | 46 | static void xen_pv_post_suspend(int suspend_cancelled) |
| 0e91398f | 47 | { |
| fa24ba62 IC |
48 | xen_build_mfn_list_list(); |
| 49 | ||
| 9c7a7942 JF |
50 | xen_setup_shared_info(); |
| 51 | ||
| 0e91398f JF |
52 | if (suspend_cancelled) { |
| 53 | xen_start_info->store_mfn = | |
| 54 | pfn_to_mfn(xen_start_info->store_mfn); | |
| 55 | xen_start_info->console.domU.mfn = | |
| 56 | pfn_to_mfn(xen_start_info->console.domU.mfn); | |
| 57 | } else { | |
| 58 | #ifdef CONFIG_SMP | |
| b78936e1 MT |
59 | BUG_ON(xen_cpu_initialized_map == NULL); |
| 60 | cpumask_copy(xen_cpu_initialized_map, cpu_online_mask); | |
| 0e91398f | 61 | #endif |
| 9c7a7942 | 62 | xen_vcpu_restore(); |
| 0e91398f JF |
63 | } |
| 64 | ||
| aa8532c3 DV |
65 | xen_mm_unpin_all(); |
| 66 | } | |
| 67 | ||
| 68 | void xen_arch_pre_suspend(void) | |
| 69 | { | |
| 70 | if (xen_pv_domain()) | |
| 71 | xen_pv_pre_suspend(); | |
| 72 | } | |
| 73 | ||
| 74 | void xen_arch_post_suspend(int cancelled) | |
| 75 | { | |
| 76 | if (xen_pv_domain()) | |
| 77 | xen_pv_post_suspend(cancelled); | |
| 78 | else | |
| 79 | xen_hvm_post_suspend(cancelled); | |
| 0e91398f JF |
80 | } |
| 81 | ||
| f6eafe36 IC |
82 | static void xen_vcpu_notify_restore(void *data) |
| 83 | { | |
| 84 | unsigned long reason = (unsigned long)data; | |
| 85 | ||
| 86 | /* Boot processor notified via generic timekeeping_resume() */ | |
| 87 | if ( smp_processor_id() == 0) | |
| 88 | return; | |
| 89 | ||
| 90 | clockevents_notify(reason, NULL); | |
| 91 | } | |
| 92 | ||
| ad55db9f IY |
93 | void xen_arch_resume(void) |
| 94 | { | |
| cd52e17e IC |
95 | on_each_cpu(xen_vcpu_notify_restore, |
| 96 | (void *)CLOCK_EVT_NOTIFY_RESUME, 1); | |
| ad55db9f | 97 | } |