90 lines
2.2 KiB
C++
90 lines
2.2 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 2015-06-03
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*/
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/*
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* Copyright (C) 2015-2017 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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/* Genode includes */
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#include <util/construct_at.h>
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/* core includes */
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#include <vm_session_component.h>
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#include <platform.h>
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using namespace Genode;
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static Board::Vm_page_table_array & dummy_array()
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{
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static Board::Vm_page_table_array a;
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return a;
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}
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void Vm_session_component::_attach(addr_t, addr_t, size_t) { }
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void Vm_session_component::_attach_vm_memory(Dataspace_component &,
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addr_t const,
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Attach_attr const) { }
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void Vm_session_component::attach_pic(addr_t) { }
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void Vm_session_component::_detach_vm_memory(addr_t, size_t) { }
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void * Vm_session_component::_alloc_table()
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{
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static Board::Vm_page_table table;
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return (void*) &table;
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}
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Vm_session_component::Vm_session_component(Rpc_entrypoint &ep,
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Resources resources,
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Label const &,
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Diag,
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Ram_allocator &ram_alloc,
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Region_map ®ion_map,
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unsigned, Trace::Source_registry &)
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:
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Ram_quota_guard(resources.ram_quota),
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Cap_quota_guard(resources.cap_quota),
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_ep(ep),
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_constrained_md_ram_alloc(ram_alloc, _ram_quota_guard(), _cap_quota_guard()),
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_sliced_heap(_constrained_md_ram_alloc, region_map),
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_region_map(region_map),
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_table(*construct_at<Board::Vm_page_table>(_alloc_table())),
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_table_array(dummy_array()) { }
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Vm_session_component::~Vm_session_component()
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{
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/* detach all regions */
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while (true) {
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addr_t out_addr = 0;
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if (!_map.any_block_addr(&out_addr))
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break;
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detach(out_addr);
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}
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/* free region in allocator */
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for (unsigned i = 0; i < _id_alloc; i++) {
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Vcpu & vcpu = _vcpus[i];
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if (vcpu.ds_cap.valid()) {
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_region_map.detach(vcpu.ds_addr);
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_constrained_md_ram_alloc.free(vcpu.ds_cap);
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}
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}
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}
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