diff options
Diffstat (limited to 'include/xen/acpi.h')
| -rw-r--r-- | include/xen/acpi.h | 59 |
1 files changed, 56 insertions, 3 deletions
diff --git a/include/xen/acpi.h b/include/xen/acpi.h index 48a9c0171b6..4ddd7dc4a61 100644 --- a/include/xen/acpi.h +++ b/include/xen/acpi.h @@ -40,14 +40,67 @@ #include <xen/xen.h> #include <linux/acpi.h> -int xen_acpi_notify_hypervisor_state(u8 sleep_state, +#define ACPI_MEMORY_DEVICE_CLASS "memory" +#define ACPI_MEMORY_DEVICE_HID "PNP0C80" +#define ACPI_MEMORY_DEVICE_NAME "Hotplug Mem Device" + +int xen_stub_memory_device_init(void); +void xen_stub_memory_device_exit(void); + +#define ACPI_PROCESSOR_CLASS "processor" +#define ACPI_PROCESSOR_DEVICE_HID "ACPI0007" +#define ACPI_PROCESSOR_DEVICE_NAME "Processor" + +int xen_stub_processor_init(void); +void xen_stub_processor_exit(void); + +void xen_pcpu_hotplug_sync(void); +int xen_pcpu_id(uint32_t acpi_id); + +static inline int xen_acpi_get_pxm(acpi_handle h) +{ + unsigned long long pxm; + acpi_status status; + acpi_handle handle; + acpi_handle phandle = h; + + do { + handle = phandle; + status = acpi_evaluate_integer(handle, "_PXM", NULL, &pxm); + if (ACPI_SUCCESS(status)) + return pxm; + status = acpi_get_parent(handle, &phandle); + } while (ACPI_SUCCESS(status)); + + return -ENXIO; +} + +int xen_acpi_notify_hypervisor_sleep(u8 sleep_state, u32 pm1a_cnt, u32 pm1b_cnd); +int xen_acpi_notify_hypervisor_extended_sleep(u8 sleep_state, + u32 val_a, u32 val_b); + +static inline int xen_acpi_suspend_lowlevel(void) +{ + /* + * Xen will save and restore CPU context, so + * we can skip that and just go straight to + * the suspend. + */ + acpi_enter_sleep_state(ACPI_STATE_S3); + return 0; +} static inline void xen_acpi_sleep_register(void) { - if (xen_initial_domain()) + if (xen_initial_domain()) { acpi_os_set_prepare_sleep( - &xen_acpi_notify_hypervisor_state); + &xen_acpi_notify_hypervisor_sleep); + acpi_os_set_prepare_extended_sleep( + &xen_acpi_notify_hypervisor_extended_sleep); + + acpi_suspend_lowlevel = xen_acpi_suspend_lowlevel; + } } #else static inline void xen_acpi_sleep_register(void) |