diff options
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/acpi.c | 41 |
1 files changed, 28 insertions, 13 deletions
diff --git a/drivers/xen/acpi.c b/drivers/xen/acpi.c index 119d42a2bf57..90307c0b630c 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); +} |