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
40 lines
956 B
C++
40 lines
956 B
C++
/*
|
|
* \brief Default implementation of core-local region map
|
|
* \author Norman Feske
|
|
* \date 2009-04-02
|
|
*
|
|
* This implementation assumes that dataspaces are identity-mapped within
|
|
* core. This is the case for traditional L4 kernels.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2009-2013 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.
|
|
*/
|
|
|
|
/* core includes */
|
|
#include <platform.h>
|
|
#include <core_region_map.h>
|
|
|
|
using namespace Genode;
|
|
|
|
|
|
Region_map::Local_addr
|
|
Core_region_map::attach(Dataspace_capability ds_cap, size_t size,
|
|
off_t offset, bool use_local_addr,
|
|
Region_map::Local_addr, bool executable)
|
|
{
|
|
auto lambda = [] (Dataspace_component *ds) {
|
|
if (!ds)
|
|
throw Invalid_dataspace();
|
|
|
|
return (void *)ds->phys_addr();
|
|
};
|
|
return _ep.apply(ds_cap, lambda);
|
|
}
|
|
|
|
|
|
void Core_region_map::detach(Local_addr) { }
|