114 lines
3.0 KiB
C++
114 lines
3.0 KiB
C++
/*
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* \brief Core-specific instance of the VM session interface
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* \author Alexander Boettcher
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* \date 2018-08-26
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*/
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/*
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* Copyright (C) 2018 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__VM_SESSION_COMPONENT_H_
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#define _CORE__VM_SESSION_COMPONENT_H_
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/* Genode includes */
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#include <base/rpc_server.h>
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#include <base/heap.h>
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#include <vm_session/vm_session.h>
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/* Core includes */
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#include <cap_mapping.h>
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#include <dataspace_component.h>
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#include <region_map_component.h>
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#include <trace/source_registry.h>
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namespace Genode { class Vm_session_component; struct Vcpu; }
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struct Genode::Vcpu : Genode::List<Vcpu>::Element
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{
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private:
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Constrained_ram_allocator &_ram_alloc;
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Cap_quota_guard &_cap_alloc;
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Ram_dataspace_capability _ds_cap { };
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Vm_session::Vcpu_id const _id;
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Cap_mapping _recall { true };
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public:
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Vcpu(Constrained_ram_allocator &ram_alloc,
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Cap_quota_guard &cap_alloc, Vm_session::Vcpu_id const id);
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~Vcpu();
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bool match(Vm_session::Vcpu_id const id) const { return id.id == _id.id; }
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Dataspace_capability ds_cap() { return _ds_cap; }
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Cap_mapping &recall_cap() { return _recall; }
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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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public Region_map_detach
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{
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private:
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typedef Constrained_ram_allocator Con_ram_allocator;
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typedef Allocator_avl_tpl<Rm_region> Avl_region;
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Rpc_entrypoint &_ep;
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Con_ram_allocator _constrained_md_ram_alloc;
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Sliced_heap _heap;
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Avl_region _map { &_heap };
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List<Vcpu> _vcpus { };
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Cap_mapping _task_vcpu { true };
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unsigned _id_alloc { 0 };
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void _attach_vm_memory(Dataspace_component &, addr_t, Attach_attr);
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void _detach_vm_memory(addr_t, size_t);
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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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Vm_session_component(Rpc_entrypoint &, Resources, Label const &,
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Diag, Ram_allocator &ram, Region_map &, unsigned,
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Trace::Source_registry &);
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~Vm_session_component();
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/*********************************
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** Region_map_detach interface **
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*********************************/
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void detach(Region_map::Local_addr) override;
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void unmap_region(addr_t, size_t) override;
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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);
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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, Attach_attr) 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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Vcpu_id _create_vcpu(Thread_capability);
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};
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#endif /* _CORE__VM_SESSION_COMPONENT_H_ */
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