/*
* Dom0 issues this hypercall in place of writing pm1a_cnt. Xen then
* takes over the control and put the system into sleep state really.
*/
int acpi_enter_sleep(struct xenpf_enter_acpi_sleep *sleep)
{
if ( sleep->flags & XENPF_ACPI_SLEEP_EXTENDED )
{
if ( !acpi_sinfo.sleep_control.address ||
!acpi_sinfo.sleep_status.address )
return -EPERM;
if ( sleep->flags & ~XENPF_ACPI_SLEEP_EXTENDED )
return -EINVAL;
if ( sleep->val_a > ACPI_SLEEP_TYPE_MAX ||
(sleep->val_b != ACPI_SLEEP_TYPE_INVALID &&
sleep->val_b > ACPI_SLEEP_TYPE_MAX) )
return -ERANGE;
acpi_sinfo.sleep_type_a = sleep->val_a;
acpi_sinfo.sleep_type_b = sleep->val_b;
acpi_sinfo.sleep_extended = 1;
}
else if ( !acpi_sinfo.pm1a_cnt_blk.address )
return -EPERM;
/* Sanity check */
else if ( sleep->val_b &&
((sleep->val_a ^ sleep->val_b) & ACPI_BITMASK_SLEEP_ENABLE) )
{
gdprintk(XENLOG_ERR, "Mismatched pm1a/pm1b setting.");
return -EINVAL;
}
else if ( sleep->flags )
return -EINVAL;
else
{
acpi_sinfo.pm1a_cnt_val = sleep->val_a;
acpi_sinfo.pm1b_cnt_val = sleep->val_b;
acpi_sinfo.sleep_extended = 0;
}
acpi_sinfo.sleep_state = sleep->sleep_state;
return continue_hypercall_on_cpu(0, enter_state_helper, &acpi_sinfo);
}
static long do_microcode_update(void *_info)
{
struct microcode_info *info = _info;
int error;
BUG_ON(info->cpu != smp_processor_id());
error = microcode_update_cpu(info->buffer, info->buffer_size);
if ( error )
info->error = error;
info->cpu = cpumask_next(info->cpu, &cpu_online_map);
if ( info->cpu < nr_cpu_ids )
return continue_hypercall_on_cpu(info->cpu, do_microcode_update, info);
error = info->error;
xfree(info);
return error;
}
/*
* Dom0 issues this hypercall in place of writing pm1a_cnt. Xen then
* takes over the control and put the system into sleep state really.
*/
int acpi_enter_sleep(struct xenpf_enter_acpi_sleep *sleep)
{
if ( !IS_PRIV(current->domain) || !acpi_sinfo.pm1a_cnt_blk.address )
return -EPERM;
/* Sanity check */
if ( acpi_sinfo.pm1b_cnt_val &&
((sleep->pm1a_cnt_val ^ sleep->pm1b_cnt_val) &
ACPI_BITMASK_SLEEP_ENABLE) )
{
gdprintk(XENLOG_ERR, "Mismatched pm1a/pm1b setting.");
return -EINVAL;
}
if ( sleep->flags )
return -EINVAL;
acpi_sinfo.pm1a_cnt_val = sleep->pm1a_cnt_val;
acpi_sinfo.pm1b_cnt_val = sleep->pm1b_cnt_val;
acpi_sinfo.sleep_state = sleep->sleep_state;
return continue_hypercall_on_cpu(0, enter_state_helper, &acpi_sinfo);
}
