/* System is really put into sleep state by this stub */
acpi_status acpi_enter_sleep_state(u8 sleep_state)
{
acpi_status status;
if ( tboot_in_measured_env() )
{
tboot_sleep(sleep_state);
printk(XENLOG_ERR "TBOOT failed entering s3 state\n");
return_ACPI_STATUS(AE_ERROR);
}
ACPI_FLUSH_CPU_CACHE();
status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL,
acpi_sinfo.pm1a_cnt_val);
if ( ACPI_FAILURE(status) )
return_ACPI_STATUS(AE_ERROR);
if ( acpi_sinfo.pm1b_cnt_blk.address )
{
status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL,
acpi_sinfo.pm1b_cnt_val);
if ( ACPI_FAILURE(status) )
return_ACPI_STATUS(AE_ERROR);
}
/* Wait until we enter sleep state, and spin until we wake */
while ( !acpi_get_wake_status() )
continue;
return_ACPI_STATUS(AE_OK);
}
/* System is really put into sleep state by this stub */
acpi_status acpi_enter_sleep_state(u8 sleep_state)
{
acpi_status status;
if ( tboot_in_measured_env() )
{
tboot_sleep(sleep_state);
printk(XENLOG_ERR "TBOOT failed entering s3 state\n");
return_ACPI_STATUS(AE_ERROR);
}
ACPI_FLUSH_CPU_CACHE();
if ( acpi_sinfo.sleep_extended )
{
/*
* Set the SLP_TYP and SLP_EN bits.
*
* Note: We only use the first value returned by the \_Sx method
* (acpi_sinfo.sleep_type_a) - As per ACPI specification.
*/
u8 sleep_type_value =
((acpi_sinfo.sleep_type_a << ACPI_X_SLEEP_TYPE_POSITION) &
ACPI_X_SLEEP_TYPE_MASK) | ACPI_X_SLEEP_ENABLE;
status = acpi_hw_register_write(ACPI_REGISTER_SLEEP_CONTROL,
sleep_type_value);
}
else
{
status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL,
acpi_sinfo.pm1a_cnt_val);
if ( !ACPI_FAILURE(status) && acpi_sinfo.pm1b_cnt_blk.address )
status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL,
acpi_sinfo.pm1b_cnt_val);
}
if ( ACPI_FAILURE(status) )
return_ACPI_STATUS(AE_ERROR);
/* Wait until we enter sleep state, and spin until we wake */
while ( !acpi_get_wake_status() )
continue;
return_ACPI_STATUS(AE_OK);
}
