genode/base-hw/src/core/cpu_session_support.cc

35 lines
764 B
C++

/*
* \brief Platform specific parts of CPU session
* \author Martin Stein
* \date 2012-04-17
*/
/*
* Copyright (C) 2012 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.
*/
/* Genode includes */
#include <dataspace/capability.h>
/* core includes */
#include <cpu_session_component.h>
using namespace Genode;
Ram_dataspace_capability
Cpu_session_component::utcb(Thread_capability thread_cap)
{
/* serialize access */
Lock::Guard lock_guard(_thread_list_lock);
/* lookup requested UTCB dataspace */
Cpu_thread_component * t = _lookup_thread(thread_cap);
if (!t) return Ram_dataspace_capability();
return t->platform_thread()->utcb();
}