46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
/*
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* Memory Space
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*
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* Copyright (C) 2009-2011 Udo Steinberg <udo@hypervisor.org>
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* Economic rights: Technische Universitaet Dresden (Germany)
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*
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* Copyright (C) 2012-2013 Udo Steinberg, Intel Corporation.
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* Copyright (C) 2019-2025 Udo Steinberg, BlueRock Security, Inc.
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*
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* This file is part of the NOVA microhypervisor.
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*
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* NOVA is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* NOVA is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License version 2 for more details.
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*/
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#pragma once
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#include "bits.hpp"
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#include "memattr.hpp"
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#include "memory.hpp"
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#include "paging.hpp"
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#include "space.hpp"
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template<typename T> class Space_mem : public Space
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{
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protected:
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Space_mem (Kobject::Subtype s) : Space { s } {}
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Space_mem (Kobject::Subtype s, Refptr<Pd> &p) : Space { s, p } {}
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static void access_ctrl (T &mem, uint64_t phys, size_t size, Paging::Permissions perm, Memattr attr)
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{
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for (unsigned o; size; size -= BITN (o), phys += BITN (o))
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mem.update (phys, phys, (o = aligned_order (size, phys)) - PAGE_BITS, perm, attr);
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}
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public:
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[[nodiscard]] Status delegate (Space_hst const *, unsigned long, unsigned long, unsigned, unsigned, Memattr);
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};
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