54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
/*
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* \brief Kernel-specific RM-faulter wake-up mechanism
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* \author Norman Feske
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* \date 2016-04-12
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*/
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/*
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* Copyright (C) 2016-2017 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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/* core includes */
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#include <pager.h>
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/* base-internal includes */
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#include <base/internal/capability_space_tpl.h>
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/* Pistachio includes */
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namespace Pistachio {
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#include <l4/types.h>
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#include <l4/ipc.h>
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}
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using namespace Genode;
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void Pager_object::wake_up()
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{
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using namespace Pistachio;
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/*
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* Issue IPC to pager, transmitting the pager-object pointer as 'IP'.
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*/
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L4_Accept(L4_UntypedWordsAcceptor);
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L4_MsgTag_t snd_tag;
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snd_tag.raw = 0;
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snd_tag.X.u = 2;
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L4_LoadMR(0, snd_tag.raw);
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L4_LoadMR(1, 0); /* fault address */
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L4_LoadMR(2, (unsigned long)this); /* instruction pointer */
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L4_Call(Capability_space::ipc_cap_data(cap()).dst);
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}
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void Pager_object::unresolved_page_fault_occurred()
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{
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state.unresolved_page_fault = true;
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}
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