b32af4e0a4
Instead of handing over object ids to the kernel, which has to find them in object pools then, core can simply use object pointers to reference kernel objects. Ref #1443
58 lines
1.4 KiB
C++
58 lines
1.4 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) 2012-2013 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 General Public License version 2.
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*/
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#include <vm_session_component.h>
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#include <platform.h>
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#include <core_env.h>
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using namespace Genode;
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addr_t Vm_session_component::_alloc_ds(size_t &ram_quota)
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{
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addr_t addr;
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if (_ds_size() > ram_quota ||
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platform()->ram_alloc()->alloc_aligned(_ds_size(), (void**)&addr,
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get_page_size_log2()).is_error())
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throw Root::Quota_exceeded();
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ram_quota -= _ds_size();
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return addr;
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}
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void Vm_session_component::run(void)
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{
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if (!_initialized || Kernel::run_vm(_kernel_object()))
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PWRN("Unknown VM: is the exception handler registered?");
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}
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void Vm_session_component::pause(void)
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{
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if (!_initialized || Kernel::pause_vm(_kernel_object()))
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PWRN("Unknown VM: is the exception handler registered?");
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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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if (Kernel::delete_vm(_kernel_object())) PERR("Cannot destruct unknown VM");
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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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