98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
/*
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* \brief Core-specific instance of the VM session interface
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* \author Stefan Kalkowski
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* \date 2012-10-08
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*/
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/*
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* Copyright (C) 2012-2017 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__SPEC__ARM_V7__VIRTUALIZATION__VM_SESSION_COMPONENT_H_
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#define _CORE__SPEC__ARM_V7__VIRTUALIZATION__VM_SESSION_COMPONENT_H_
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/* Genode includes */
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#include <base/allocator.h>
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#include <base/session_object.h>
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#include <vm_session/vm_session.h>
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#include <dataspace/capability.h>
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#include <hw/spec/arm/lpae.h>
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/* Core includes */
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#include <object.h>
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#include <translation_table.h>
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#include <kernel/vm.h>
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namespace Genode {
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class Vm_session_component;
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}
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class Genode::Vm_session_component
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:
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private Ram_quota_guard,
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private Cap_quota_guard,
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public Rpc_object<Vm_session, Vm_session_component>,
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private Kernel_object<Kernel::Vm>
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{
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private:
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/*
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* Noncopyable
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*/
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Vm_session_component(Vm_session_component const &);
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Vm_session_component &operator = (Vm_session_component const &);
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using Table = Hw::Level_1_stage_2_translation_table;
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using Array = Table::Allocator::Array<Kernel::DEFAULT_TRANSLATION_TABLE_MAX>;
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Rpc_entrypoint *_ds_ep;
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Constrained_ram_allocator _constrained_md_ram_alloc;
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Region_map &_region_map;
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Ram_dataspace_capability _ds_cap { };
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Region_map::Local_addr _ds_addr { 0 };
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Table &_table;
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Array &_table_array;
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static size_t _ds_size() {
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return align_addr(sizeof(Cpu_state_modes),
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get_page_size_log2()); }
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addr_t _alloc_ds();
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void * _alloc_table();
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void _attach(addr_t phys_addr, addr_t vm_addr, size_t size);
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protected:
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Ram_quota_guard &_ram_quota_guard() { return *this; }
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Cap_quota_guard &_cap_quota_guard() { return *this; }
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public:
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using Ram_quota_guard::upgrade;
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using Cap_quota_guard::upgrade;
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using Rpc_object<Vm_session, Vm_session_component>::cap;
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Vm_session_component(Rpc_entrypoint &, Resources, Label const &,
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Diag, Ram_allocator &ram, Region_map &);
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~Vm_session_component();
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/**************************
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** Vm session interface **
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**************************/
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Dataspace_capability _cpu_state(Vcpu_id) { return _ds_cap; }
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void _exception_handler(Signal_context_capability, Vcpu_id);
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void _run(Vcpu_id);
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void _pause(Vcpu_id);
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void attach(Dataspace_capability, addr_t) override;
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void attach_pic(addr_t) override;
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void detach(addr_t, size_t) override;
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void _create_vcpu(Thread_capability) {}
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};
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#endif /* _CORE__SPEC__ARM_V7__VIRTUALIZATION__VM_SESSION_COMPONENT_H_ */
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