static int
xencomm_privcmd_sched_op(privcmd_hypercall_t *hypercall)
{
int cmd = hypercall->arg[0];
struct xencomm_handle *desc;
unsigned int argsize;
int ret;
switch (cmd) {
case SCHEDOP_remote_shutdown:
argsize = sizeof(sched_remote_shutdown_t);
break;
default:
printk("%s: unknown SCHEDOP %d\n", __func__, cmd);
return -EINVAL;
}
ret = xencomm_create((void *)hypercall->arg[1], argsize,
&desc, GFP_KERNEL);
if (ret)
return ret;
ret = xencomm_arch_hypercall_sched_op(cmd, desc);
xencomm_free(desc);
return ret;
}
int
xencomm_hypercall_suspend(unsigned long srec)
{
struct sched_shutdown arg;
arg.reason = SHUTDOWN_suspend;
return xencomm_arch_hypercall_sched_op(
SCHEDOP_shutdown, xencomm_map_no_alloc(&arg, sizeof(arg)));
}
int
xencomm_hypercall_sched_op(int cmd, void *arg)
{
struct xencomm_handle *desc;
unsigned int argsize;
switch (cmd) {
case SCHEDOP_yield:
case SCHEDOP_block:
argsize = 0;
break;
case SCHEDOP_shutdown:
argsize = sizeof(struct sched_shutdown);
break;
case SCHEDOP_poll:
{
struct sched_poll *poll = arg;
struct xencomm_handle *ports;
argsize = sizeof(struct sched_poll);
ports = xencomm_map_no_alloc(xen_guest_handle(poll->ports),
sizeof(*xen_guest_handle(poll->ports)));
set_xen_guest_handle(poll->ports, (void *)ports);
break;
}
default:
printk(KERN_DEBUG "%s: unknown sched op %d\n", __func__, cmd);
return -ENOSYS;
}
desc = xencomm_map_no_alloc(arg, argsize);
if (desc == NULL)
return -EINVAL;
return xencomm_arch_hypercall_sched_op(cmd, desc);
}
