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/******************************************************************************
* compat.c
*
* Implementations of legacy hypercalls. These call through to the new
* hypercall after doing necessary argument munging.
*/
#include <xen/guest_access.h>
#include <xen/hypercall.h>
#include <xen/trace.h>
#include <public/sched.h>
#ifndef COMPAT
typedef long ret_t;
#endif
/* Legacy hypercall (as of 0x00030202). */
ret_t do_physdev_op_compat(XEN_GUEST_HANDLE_PARAM(physdev_op_t) uop)
{
struct physdev_op op;
if ( unlikely(copy_from_guest(&op, uop, 1) != 0) )
return -EFAULT;
return do_physdev_op(op.cmd, guest_handle_from_ptr(&uop.p->u, void));
}
#ifndef COMPAT
/* Legacy hypercall (as of 0x00030101). */
long do_sched_op_compat(int cmd, unsigned long arg)
{
switch ( cmd )
{
case SCHEDOP_yield:
case SCHEDOP_block:
return do_sched_op(cmd, guest_handle_from_ptr(NULL, void));
case SCHEDOP_shutdown:
TRACE_3D(TRC_SCHED_SHUTDOWN,
current->domain->domain_id, current->vcpu_id, arg);
domain_shutdown(current->domain, (u8)arg);
break;
default:
return -ENOSYS;
}
return 0;
}
/* Legacy hypercall (as of 0x00030202). */
long do_event_channel_op_compat(
XEN_GUEST_HANDLE_PARAM(evtchn_op_t) uop)
{
struct evtchn_op op;
if ( unlikely(copy_from_guest(&op, uop, 1) != 0) )
return -EFAULT;
switch ( op.cmd )
{
case EVTCHNOP_bind_interdomain:
case EVTCHNOP_bind_virq:
case EVTCHNOP_bind_pirq:
case EVTCHNOP_close:
case EVTCHNOP_send:
case EVTCHNOP_status:
case EVTCHNOP_alloc_unbound:
case EVTCHNOP_bind_ipi:
case EVTCHNOP_bind_vcpu:
case EVTCHNOP_unmask:
return do_event_channel_op(op.cmd,
guest_handle_from_ptr(&uop.p->u, void));
default:
return -ENOSYS;
}
}
#endif
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