58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
/*
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* \brief Core's CSpace layout definition
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* \author Norman Feske
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* \date 2015-05-06
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*/
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/*
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* Copyright (C) 2015 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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#ifndef _CORE__INCLUDE__CORE_CSPACE_H_
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#define _CORE__INCLUDE__CORE_CSPACE_H_
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#include <sel4_boot_info.h>
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namespace Genode { class Core_cspace; }
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class Genode::Core_cspace
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{
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public:
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/* CNode dimensions */
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enum {
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NUM_TOP_SEL_LOG2 = 12UL,
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/* CONFIG_ROOT_CNODE_SIZE_BITS from seL4 autoconf.h */
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NUM_CORE_SEL_LOG2 = CONFIG_ROOT_CNODE_SIZE_BITS,
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NUM_PHYS_SEL_LOG2 = 20UL,
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NUM_CORE_PAD_SEL_LOG2 = 32UL - NUM_TOP_SEL_LOG2 - NUM_CORE_SEL_LOG2,
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};
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/* selectors for initially created CNodes during core bootup */
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static inline unsigned long top_cnode_sel() { return sel4_boot_info().empty.start; }
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static inline unsigned long core_pad_cnode_sel() { return top_cnode_sel() + 1; }
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static inline unsigned long core_cnode_sel() { return core_pad_cnode_sel() + 1; }
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static inline unsigned long phys_cnode_sel() { return core_cnode_sel() + 1; }
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static inline unsigned long untyped_cnode_sel() { return phys_cnode_sel() + 1; }
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static unsigned long core_static_sel_end() { return untyped_cnode_sel() + 1; }
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/* indices within top-level CNode */
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enum Top_cnode_idx {
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TOP_CNODE_CORE_IDX = 0,
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/* XXX mark last index usable for PDs */
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TOP_CNODE_UNTYPED_IDX = 0xffe, /* untyped memory pages */
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TOP_CNODE_PHYS_IDX = 0xfff /* phyical page frames */
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};
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enum { CORE_VM_ID = 1 };
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};
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#endif /* _CORE__INCLUDE__CORE_CSPACE_H_ */
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