89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
/*
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* \brief CPU root interface
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* \author Christian Helmuth
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* \date 2006-07-17
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*/
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/*
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* Copyright (C) 2006-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _CORE__INCLUDE__CPU_ROOT_H_
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#define _CORE__INCLUDE__CPU_ROOT_H_
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/* Genode includes */
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#include <root/component.h>
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/* Core includes */
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#include <cpu_session_component.h>
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namespace Genode {
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class Cpu_root : public Root_component<Cpu_session_component>
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{
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private:
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Ram_allocator &_ram_alloc;
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Region_map &_local_rm;
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Rpc_entrypoint &_thread_ep;
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Pager_entrypoint &_pager_ep;
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Allocator &_md_alloc;
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Trace::Source_registry &_trace_sources;
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protected:
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Cpu_session_component *_create_session(char const *args,
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Affinity const &affinity) override {
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size_t ram_quota =
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Arg_string::find_arg(args, "ram_quota").ulong_value(0);
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if (ram_quota < Trace::Control_area::SIZE)
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throw Insufficient_ram_quota();
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return new (md_alloc())
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Cpu_session_component(*this->ep(),
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session_resources_from_args(args),
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session_label_from_args(args),
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session_diag_from_args(args),
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_ram_alloc, _local_rm,
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_thread_ep, _pager_ep, _trace_sources,
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args, affinity, 0);
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}
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void _upgrade_session(Cpu_session_component *cpu, const char *args) override
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{
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cpu->upgrade(ram_quota_from_args(args));
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cpu->upgrade(cap_quota_from_args(args));
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}
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public:
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/**
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* Constructor
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*
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* \param session_ep entry point for managing cpu session objects
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* \param thread_ep entry point for managing threads
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* \param md_alloc meta data allocator to be used by root component
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*/
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Cpu_root(Ram_allocator &ram_alloc,
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Region_map &local_rm,
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Rpc_entrypoint &session_ep,
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Rpc_entrypoint &thread_ep,
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Pager_entrypoint &pager_ep,
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Allocator &md_alloc,
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Trace::Source_registry &trace_sources)
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:
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Root_component<Cpu_session_component>(&session_ep, &md_alloc),
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_ram_alloc(ram_alloc), _local_rm(local_rm),
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_thread_ep(thread_ep), _pager_ep(pager_ep),
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_md_alloc(md_alloc), _trace_sources(trace_sources)
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{ }
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};
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}
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#endif /* _CORE__INCLUDE__CPU_ROOT_H_ */
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