50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
/*
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* \brief VM session component for 'base-hw'
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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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#include <kernel/core_interface.h>
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#include <vm_session_component.h>
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#include <core_env.h>
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using namespace Genode;
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void Vm_session_component::exception_handler(Signal_context_capability handler)
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{
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if (!create((void*)_ds.core_local_addr(), Capability_space::capid(handler),
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nullptr))
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{
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warning("Cannot instantiate vm kernel object twice,"
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"or invalid signal context?");
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}
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}
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Vm_session_component::Vm_session_component(Rpc_entrypoint *ds_ep,
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size_t ram_quota)
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: _ds_ep(ds_ep), _ds(_ds_size(), _alloc_ds(ram_quota), UNCACHED, true, 0),
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_ds_cap(static_cap_cast<Dataspace>(_ds_ep->manage(&_ds)))
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{
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_ds.assign_core_local_addr(core_env().rm_session()->attach(_ds_cap));
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}
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Vm_session_component::~Vm_session_component()
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{
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/* dissolve VM dataspace from service entry point */
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_ds_ep->dissolve(&_ds);
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/* free region in allocator */
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core_env().rm_session()->detach(_ds.core_local_addr());
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platform().ram_alloc().free((void*)_ds.phys_addr());
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}
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