/*
* Check if the request is handled inside xen
* return value: 0 --not handled; 1 --handled
*/
int hvm_io_intercept(ioreq_t *p, int type)
{
struct vcpu *v = current;
struct hvm_io_handler *handler = v->domain->arch.hvm_domain.io_handler;
int i;
unsigned long addr, size;
if ( type == HVM_PORTIO )
{
int rc = dpci_ioport_intercept(p);
if ( (rc == X86EMUL_OKAY) || (rc == X86EMUL_RETRY) )
return rc;
}
for ( i = 0; i < handler->num_slot; i++ )
{
if ( type != handler->hdl_list[i].type )
continue;
addr = handler->hdl_list[i].addr;
size = handler->hdl_list[i].size;
if ( (p->addr >= addr) &&
((p->addr + p->size) <= (addr + size)) )
{
if ( type == HVM_PORTIO )
return process_portio_intercept(
handler->hdl_list[i].action.portio, p);
return handler->hdl_list[i].action.mmio(p);
}
}
return X86EMUL_UNHANDLEABLE;
}
/*
* Check if the request is handled inside xen
* return value: 0 --not handled; 1 --handled
*/
int hvm_io_intercept(ioreq_t *p, int type)
{
struct vcpu *v = current;
struct hvm_io_handler *handler =
&v->domain->arch.hvm_domain.io_handler;
int i;
unsigned long addr, size;
if ( (type == HVM_PORTIO) && (dpci_ioport_intercept(p)) )
return 1;
for ( i = 0; i < handler->num_slot; i++ )
{
if ( type != handler->hdl_list[i].type )
continue;
addr = handler->hdl_list[i].addr;
size = handler->hdl_list[i].size;
if ( (p->addr >= addr) &&
((p->addr + p->size) <= (addr + size)) )
{
if ( type == HVM_PORTIO )
return process_portio_intercept(
handler->hdl_list[i].action.portio, p);
return handler->hdl_list[i].action.mmio(p);
}
}
return 0;
}
