127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
/*
|
|
* \brief Core-specific instance of the VM session interface
|
|
* \author Alexander Boettcher
|
|
* \date 2018-08-26
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2018 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
#ifndef _CORE__VM_SESSION_COMPONENT_H_
|
|
#define _CORE__VM_SESSION_COMPONENT_H_
|
|
|
|
/* Genode includes */
|
|
#include <base/rpc_server.h>
|
|
#include <vm_session/vm_session.h>
|
|
|
|
#include <trace/source_registry.h>
|
|
|
|
namespace Genode { class Vm_session_component; }
|
|
|
|
class Genode::Vm_session_component
|
|
:
|
|
private Ram_quota_guard,
|
|
private Cap_quota_guard,
|
|
public Rpc_object<Vm_session, Vm_session_component>,
|
|
public Region_map_detach
|
|
{
|
|
private:
|
|
|
|
class Vcpu : public Genode::List<Vcpu>::Element
|
|
{
|
|
private:
|
|
|
|
Constrained_ram_allocator &_ram_alloc;
|
|
Ram_dataspace_capability _ds_cap;
|
|
Cap_sel _notification { 0 };
|
|
Vm_session::Vcpu_id _vcpu_id;
|
|
|
|
void _free_up();
|
|
|
|
public:
|
|
|
|
Vcpu(Constrained_ram_allocator &, Cap_quota_guard &, Vcpu_id,
|
|
seL4_Untyped);
|
|
~Vcpu() { _free_up(); }
|
|
|
|
Dataspace_capability ds_cap() const { return _ds_cap; }
|
|
bool match(Vcpu_id id) const { return id.id == _vcpu_id.id; }
|
|
void signal() const { seL4_Signal(_notification.value()); }
|
|
Cap_sel notification_cap() const { return _notification; }
|
|
};
|
|
|
|
typedef Allocator_avl_tpl<Rm_region> Avl_region;
|
|
|
|
Rpc_entrypoint &_ep;
|
|
Constrained_ram_allocator _constrained_md_ram_alloc;
|
|
Heap _heap;
|
|
Avl_region _map { &_heap };
|
|
List<Vcpu> _vcpus { };
|
|
unsigned _id_alloc { 0 };
|
|
unsigned _pd_id { 0 };
|
|
Cap_sel _vm_page_table;
|
|
Page_table_registry _page_table_registry { _heap };
|
|
Vm_space _vm_space;
|
|
struct {
|
|
addr_t _phys;
|
|
seL4_Untyped _service;
|
|
} _ept { 0, 0 };
|
|
struct {
|
|
addr_t _phys;
|
|
seL4_Untyped _service;
|
|
} _notifications { 0, 0 };
|
|
|
|
Vcpu * _lookup(Vcpu_id const vcpu_id)
|
|
{
|
|
for (Vcpu * vcpu = _vcpus.first(); vcpu; vcpu = vcpu->next())
|
|
if (vcpu->match(vcpu_id)) return vcpu;
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void _attach_vm_memory(Dataspace_component &, addr_t, Attach_attr);
|
|
void _detach_vm_memory(addr_t, size_t);
|
|
|
|
protected:
|
|
|
|
Ram_quota_guard &_ram_quota_guard() { return *this; }
|
|
Cap_quota_guard &_cap_quota_guard() { return *this; }
|
|
|
|
public:
|
|
|
|
using Ram_quota_guard::upgrade;
|
|
using Cap_quota_guard::upgrade;
|
|
|
|
Vm_session_component(Rpc_entrypoint &, Resources, Label const &,
|
|
Diag, Ram_allocator &ram, Region_map &, unsigned,
|
|
Trace::Source_registry &);
|
|
~Vm_session_component();
|
|
|
|
/*********************************
|
|
** Region_map_detach interface **
|
|
*********************************/
|
|
|
|
void detach(Region_map::Local_addr) override;
|
|
void unmap_region(addr_t, size_t) override;
|
|
|
|
/**************************
|
|
** Vm session interface **
|
|
**************************/
|
|
|
|
Dataspace_capability _cpu_state(Vcpu_id);
|
|
|
|
void _exception_handler(Signal_context_capability, Vcpu_id) {}
|
|
void _run(Vcpu_id) {}
|
|
void _pause(Vcpu_id);
|
|
void attach(Dataspace_capability, addr_t, Attach_attr) override;
|
|
void attach_pic(addr_t) override {}
|
|
void detach(addr_t, size_t) override;
|
|
Vcpu_id _create_vcpu(Thread_capability);
|
|
};
|
|
|
|
#endif /* _CORE__VM_SESSION_COMPONENT_H_ */
|