diff options
| -rw-r--r-- | drivers/xen/acpi.c | 41 | ||||
| -rw-r--r-- | include/xen/acpi.h | 8 | ||||
| -rw-r--r-- | include/xen/interface/platform.h | 7 |
3 files changed, 38 insertions, 18 deletions
diff --git a/drivers/xen/acpi.c b/drivers/xen/acpi.c index 119d42a2bf5..90307c0b630 100644 --- a/drivers/xen/acpi.c +++ b/drivers/xen/acpi.c @@ -35,28 +35,43 @@ #include <asm/xen/hypercall.h> #include <asm/xen/hypervisor.h> -int xen_acpi_notify_hypervisor_state(u8 sleep_state, - u32 pm1a_cnt, u32 pm1b_cnt) +static int xen_acpi_notify_hypervisor_state(u8 sleep_state, + u32 val_a, u32 val_b, + bool extended) { + unsigned int bits = extended ? 8 : 16; + struct xen_platform_op op = { .cmd = XENPF_enter_acpi_sleep, .interface_version = XENPF_INTERFACE_VERSION, - .u = { - .enter_acpi_sleep = { - .pm1a_cnt_val = (u16)pm1a_cnt, - .pm1b_cnt_val = (u16)pm1b_cnt, - .sleep_state = sleep_state, - }, + .u.enter_acpi_sleep = { + .val_a = (u16)val_a, + .val_b = (u16)val_b, + .sleep_state = sleep_state, + .flags = extended ? XENPF_ACPI_SLEEP_EXTENDED : 0, }, }; - if ((pm1a_cnt & 0xffff0000) || (pm1b_cnt & 0xffff0000)) { - WARN(1, "Using more than 16bits of PM1A/B 0x%x/0x%x!" - "Email xen-devel@lists.xensource.com Thank you.\n", \ - pm1a_cnt, pm1b_cnt); + if (WARN((val_a & (~0 << bits)) || (val_b & (~0 << bits)), + "Using more than %u bits of sleep control values %#x/%#x!" + "Email xen-devel@lists.xen.org - Thank you.\n", \ + bits, val_a, val_b)) return -1; - } HYPERVISOR_dom0_op(&op); return 1; } + +int xen_acpi_notify_hypervisor_sleep(u8 sleep_state, + u32 pm1a_cnt, u32 pm1b_cnt) +{ + return xen_acpi_notify_hypervisor_state(sleep_state, pm1a_cnt, + pm1b_cnt, false); +} + +int xen_acpi_notify_hypervisor_extended_sleep(u8 sleep_state, + u32 val_a, u32 val_b) +{ + return xen_acpi_notify_hypervisor_state(sleep_state, val_a, + val_b, true); +} diff --git a/include/xen/acpi.h b/include/xen/acpi.h index 46aa3d1c165..4ddd7dc4a61 100644 --- a/include/xen/acpi.h +++ b/include/xen/acpi.h @@ -75,8 +75,10 @@ static inline int xen_acpi_get_pxm(acpi_handle h) return -ENXIO; } -int xen_acpi_notify_hypervisor_state(u8 sleep_state, +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) { @@ -93,7 +95,9 @@ static inline void xen_acpi_sleep_register(void) { 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; } diff --git a/include/xen/interface/platform.h b/include/xen/interface/platform.h index c57d5f67f70..f1331e3e727 100644 --- a/include/xen/interface/platform.h +++ b/include/xen/interface/platform.h @@ -152,10 +152,11 @@ DEFINE_GUEST_HANDLE_STRUCT(xenpf_firmware_info_t); #define XENPF_enter_acpi_sleep 51 struct xenpf_enter_acpi_sleep { /* IN variables */ - uint16_t pm1a_cnt_val; /* PM1a control value. */ - uint16_t pm1b_cnt_val; /* PM1b control value. */ + uint16_t val_a; /* PM1a control / sleep type A. */ + uint16_t val_b; /* PM1b control / sleep type B. */ uint32_t sleep_state; /* Which state to enter (Sn). */ - uint32_t flags; /* Must be zero. */ +#define XENPF_ACPI_SLEEP_EXTENDED 0x00000001 + uint32_t flags; /* XENPF_ACPI_SLEEP_*. */ }; DEFINE_GUEST_HANDLE_STRUCT(xenpf_enter_acpi_sleep_t); |