projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 0e91398f | 1 | #include <linux/types.h> |
| 4ffee521 | 2 | #include <linux/tick.h> |
| 0e91398f | 3 | |
| facca616 | 4 | #include <xen/xen.h> |
| 0e91398f JF |
5 | #include <xen/interface/xen.h> |
| 6 | #include <xen/grant_table.h> | |
| 7 | #include <xen/events.h> | |
| 8 | ||
| 9 | #include <asm/xen/hypercall.h> | |
| 10 | #include <asm/xen/page.h> | |
| 99d0000f | 11 | #include <asm/fixmap.h> |
| 0e91398f JF |
12 | |
| 13 | #include "xen-ops.h" | |
| 14 | #include "mmu.h" | |
| 65d0cf0b | 15 | #include "pmu.h" |
| 0e91398f | 16 | |
| aa8532c3 | 17 | static void xen_pv_pre_suspend(void) |
| 0e91398f | 18 | { |
| aa8532c3 DV |
19 | xen_mm_pin_all(); |
| 20 | ||
| 0e91398f JF |
21 | xen_start_info->store_mfn = mfn_to_pfn(xen_start_info->store_mfn); |
| 22 | xen_start_info->console.domU.mfn = | |
| 23 | mfn_to_pfn(xen_start_info->console.domU.mfn); | |
| 24 | ||
| 25 | BUG_ON(!irqs_disabled()); | |
| 26 | ||
| 27 | HYPERVISOR_shared_info = &xen_dummy_shared_info; | |
| 28 | if (HYPERVISOR_update_va_mapping(fix_to_virt(FIX_PARAVIRT_BOOTMAP), | |
| 29 | __pte_ma(0), 0)) | |
| 30 | BUG(); | |
| 31 | } | |
| 32 | ||
| aa8532c3 | 33 | static void xen_hvm_post_suspend(int suspend_cancelled) |
| 016b6f5f | 34 | { |
| e057a4b6 | 35 | #ifdef CONFIG_XEN_PVHVM |
| 409771d2 | 36 | int cpu; |
| 6a1f5137 OZC |
37 | if (!suspend_cancelled) |
| 38 | xen_hvm_init_shared_info(); | |
| 016b6f5f | 39 | xen_callback_vector(); |
| 512b109e | 40 | xen_unplug_emulated_devices(); |
| 409771d2 SS |
41 | if (xen_feature(XENFEAT_hvm_safe_pvclock)) { |
| 42 | for_each_online_cpu(cpu) { | |
| 43 | xen_setup_runstate_info(cpu); | |
| 44 | } | |
| 45 | } | |
| e057a4b6 | 46 | #endif |
| 016b6f5f SS |
47 | } |
| 48 | ||
| aa8532c3 | 49 | static void xen_pv_post_suspend(int suspend_cancelled) |
| 0e91398f | 50 | { |
| fa24ba62 IC |
51 | xen_build_mfn_list_list(); |
| 52 | ||
| 9c7a7942 JF |
53 | xen_setup_shared_info(); |
| 54 | ||
| 0e91398f JF |
55 | if (suspend_cancelled) { |
| 56 | xen_start_info->store_mfn = | |
| 57 | pfn_to_mfn(xen_start_info->store_mfn); | |
| 58 | xen_start_info->console.domU.mfn = | |
| 59 | pfn_to_mfn(xen_start_info->console.domU.mfn); | |
| 60 | } else { | |
| 61 | #ifdef CONFIG_SMP | |
| b78936e1 MT |
62 | BUG_ON(xen_cpu_initialized_map == NULL); |
| 63 | cpumask_copy(xen_cpu_initialized_map, cpu_online_mask); | |
| 0e91398f | 64 | #endif |
| 9c7a7942 | 65 | xen_vcpu_restore(); |
| 0e91398f JF |
66 | } |
| 67 | ||
| aa8532c3 DV |
68 | xen_mm_unpin_all(); |
| 69 | } | |
| 70 | ||
| 71 | void xen_arch_pre_suspend(void) | |
| 72 | { | |
| 65d0cf0b BO |
73 | if (xen_pv_domain()) |
| 74 | xen_pv_pre_suspend(); | |
| aa8532c3 DV |
75 | } |
| 76 | ||
| 77 | void xen_arch_post_suspend(int cancelled) | |
| 78 | { | |
| 65d0cf0b BO |
79 | if (xen_pv_domain()) |
| 80 | xen_pv_post_suspend(cancelled); | |
| 81 | else | |
| 82 | xen_hvm_post_suspend(cancelled); | |
| 0e91398f JF |
83 | } |
| 84 | ||
| f6eafe36 IC |
85 | static void xen_vcpu_notify_restore(void *data) |
| 86 | { | |
| f6eafe36 | 87 | /* Boot processor notified via generic timekeeping_resume() */ |
| 4ffee521 | 88 | if (smp_processor_id() == 0) |
| f6eafe36 IC |
89 | return; |
| 90 | ||
| f46481d0 | 91 | tick_resume_local(); |
| f6eafe36 IC |
92 | } |
| 93 | ||
| 2b953a5e BO |
94 | static void xen_vcpu_notify_suspend(void *data) |
| 95 | { | |
| 96 | tick_suspend_local(); | |
| 97 | } | |
| 98 | ||
| ad55db9f IY |
99 | void xen_arch_resume(void) |
| 100 | { | |
| de0afc9b BO |
101 | int cpu; |
| 102 | ||
| 4ffee521 | 103 | on_each_cpu(xen_vcpu_notify_restore, NULL, 1); |
| de0afc9b BO |
104 | |
| 105 | for_each_online_cpu(cpu) | |
| 106 | xen_pmu_init(cpu); | |
| ad55db9f | 107 | } |
| 2b953a5e BO |
108 | |
| 109 | void xen_arch_suspend(void) | |
| 110 | { | |
| de0afc9b BO |
111 | int cpu; |
| 112 | ||
| 113 | for_each_online_cpu(cpu) | |
| 114 | xen_pmu_finish(cpu); | |
| 115 | ||
| 2b953a5e BO |
116 | on_each_cpu(xen_vcpu_notify_suspend, NULL, 1); |
| 117 | } |