genode/repos/base-nova/src/base/region_map_client.cc
Norman Feske b49e588c1c Assign threads to PD at its creation time
This patch replaces the former 'Pd_session::bind_thread' function by a
PD-capability argument of the 'Cpu_session::create_thread' function, and
removes the ancient thread-start protocol via 'Rm_session::add_client' and
'Cpu_session::set_pager'. Threads are now bound to PDs at their creation
time and implicitly paged according to the address space of the PD.

Note the API change:

This patch changes the signature of the 'Child' and 'Process' constructors.
There is a new 'address_space' argument, which represents the region map
representing the child's address space. It is supplied separately to the
PD session capability (which principally can be invoked to obtain the
PD's address space) to allow the population of the address space
without relying on an 'Pd_session::address_space' RPC call.
Furthermore, a new (optional) env_pd argument allows the explicit
overriding of the PD capability handed out to the child as part of its
environment. It can be used to intercept the interaction of the child
with its PD session at core. This is used by Noux.

Issue #1938
2016-05-09 13:10:52 +02:00

53 lines
1.2 KiB
C++

/*
* \brief Client-side region map stub
* \author Norman Feske
* \author Alexander Boettcher
* \date 2016-01-22
*/
/*
* Copyright (C) 2006-2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#include <region_map/client.h>
using namespace Genode;
Region_map_client::Region_map_client(Capability<Region_map> session)
: Rpc_client<Region_map>(session) { }
Region_map::Local_addr
Region_map_client::attach(Dataspace_capability ds, size_t size, off_t offset,
bool use_local_addr, Local_addr local_addr,
bool executable)
{
return call<Rpc_attach>(ds, size, offset, use_local_addr, local_addr,
executable);
}
void Region_map_client::detach(Local_addr local_addr) {
call<Rpc_detach>(local_addr); }
void Region_map_client::fault_handler(Signal_context_capability cap) {
call<Rpc_fault_handler>(cap); }
Region_map::State Region_map_client::state() { return call<Rpc_state>(); }
Dataspace_capability Region_map_client::dataspace()
{
if (!_rm_ds_cap.valid())
_rm_ds_cap = call<Rpc_dataspace>();
return _rm_ds_cap;
}