projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 0e91398f | 1 | #include <linux/types.h> |
| 4ffee521 | 2 | #include <linux/tick.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" | |
| 65d0cf0b | 14 | #include "pmu.h" |
| 0e91398f | 15 | |
| aa8532c3 | 16 | static void xen_pv_pre_suspend(void) |
| 0e91398f | 17 | { |
| aa8532c3 DV |
18 | xen_mm_pin_all(); |
| 19 | ||
| 0e91398f JF |
20 | xen_start_info->store_mfn = mfn_to_pfn(xen_start_info->store_mfn); |
| 21 | xen_start_info->console.domU.mfn = | |
| 22 | mfn_to_pfn(xen_start_info->console.domU.mfn); | |
| 23 | ||
| 24 | BUG_ON(!irqs_disabled()); | |
| 25 | ||
| 26 | HYPERVISOR_shared_info = &xen_dummy_shared_info; | |
| 27 | if (HYPERVISOR_update_va_mapping(fix_to_virt(FIX_PARAVIRT_BOOTMAP), | |
| 28 | __pte_ma(0), 0)) | |
| 29 | BUG(); | |
| 30 | } | |
| 31 | ||
| aa8532c3 | 32 | static void xen_hvm_post_suspend(int suspend_cancelled) |
| 016b6f5f | 33 | { |
| e057a4b6 | 34 | #ifdef CONFIG_XEN_PVHVM |
| 409771d2 | 35 | int cpu; |
| e9daff24 | 36 | xen_hvm_init_shared_info(); |
| 016b6f5f | 37 | xen_callback_vector(); |
| 512b109e | 38 | xen_unplug_emulated_devices(); |
| 409771d2 SS |
39 | if (xen_feature(XENFEAT_hvm_safe_pvclock)) { |
| 40 | for_each_online_cpu(cpu) { | |
| 41 | xen_setup_runstate_info(cpu); | |
| 42 | } | |
| 43 | } | |
| e057a4b6 | 44 | #endif |
| 016b6f5f SS |
45 | } |
| 46 | ||
| aa8532c3 | 47 | static void xen_pv_post_suspend(int suspend_cancelled) |
| 0e91398f | 48 | { |
| fa24ba62 IC |
49 | xen_build_mfn_list_list(); |
| 50 | ||
| 9c7a7942 JF |
51 | xen_setup_shared_info(); |
| 52 | ||
| 0e91398f JF |
53 | if (suspend_cancelled) { |
| 54 | xen_start_info->store_mfn = | |
| 55 | pfn_to_mfn(xen_start_info->store_mfn); | |
| 56 | xen_start_info->console.domU.mfn = | |
| 57 | pfn_to_mfn(xen_start_info->console.domU.mfn); | |
| 58 | } else { | |
| 59 | #ifdef CONFIG_SMP | |
| b78936e1 MT |
60 | BUG_ON(xen_cpu_initialized_map == NULL); |
| 61 | cpumask_copy(xen_cpu_initialized_map, cpu_online_mask); | |
| 0e91398f | 62 | #endif |
| 9c7a7942 | 63 | xen_vcpu_restore(); |
| 0e91398f JF |
64 | } |
| 65 | ||
| aa8532c3 DV |
66 | xen_mm_unpin_all(); |
| 67 | } | |
| 68 | ||
| 69 | void xen_arch_pre_suspend(void) | |
| 70 | { | |
| 65d0cf0b BO |
71 | int cpu; |
| 72 | ||
| 73 | for_each_online_cpu(cpu) | |
| 74 | xen_pmu_finish(cpu); | |
| 75 | ||
| 76 | if (xen_pv_domain()) | |
| 77 | xen_pv_pre_suspend(); | |
| aa8532c3 DV |
78 | } |
| 79 | ||
| 80 | void xen_arch_post_suspend(int cancelled) | |
| 81 | { | |
| 65d0cf0b BO |
82 | int cpu; |
| 83 | ||
| 84 | if (xen_pv_domain()) | |
| 85 | xen_pv_post_suspend(cancelled); | |
| 86 | else | |
| 87 | xen_hvm_post_suspend(cancelled); | |
| 88 | ||
| 89 | for_each_online_cpu(cpu) | |
| 90 | xen_pmu_init(cpu); | |
| 0e91398f JF |
91 | } |
| 92 | ||
| f6eafe36 IC |
93 | static void xen_vcpu_notify_restore(void *data) |
| 94 | { | |
| f6eafe36 | 95 | /* Boot processor notified via generic timekeeping_resume() */ |
| 4ffee521 | 96 | if (smp_processor_id() == 0) |
| f6eafe36 IC |
97 | return; |
| 98 | ||
| f46481d0 | 99 | tick_resume_local(); |
| f6eafe36 IC |
100 | } |
| 101 | ||
| 2b953a5e BO |
102 | static void xen_vcpu_notify_suspend(void *data) |
| 103 | { | |
| 104 | tick_suspend_local(); | |
| 105 | } | |
| 106 | ||
| ad55db9f IY |
107 | void xen_arch_resume(void) |
| 108 | { | |
| 4ffee521 | 109 | on_each_cpu(xen_vcpu_notify_restore, NULL, 1); |
| ad55db9f | 110 | } |
| 2b953a5e BO |
111 | |
| 112 | void xen_arch_suspend(void) | |
| 113 | { | |
| 114 | on_each_cpu(xen_vcpu_notify_suspend, NULL, 1); | |
| 115 | } |