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578d45b480
We had an inconsistency in valid user addresses. is_user_range() was checking against the kernel base address, but previous changes caused the maximum valid user addressable range to be 32 MiB below that. This patch stops mmap(MAP_FIXED) of a range between these two bounds from panic-ing the kernel in RangeAllocator::allocate_specific.
24 lines
738 B
C
24 lines
738 B
C
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Platform.h>
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#define READONLY_AFTER_INIT __attribute__((section(".ro_after_init")))
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#define UNMAP_AFTER_INIT NEVER_INLINE __attribute__((section(".unmap_after_init")))
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#define KERNEL_BASE 0xC0000000
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#define KERNEL_PD_OFFSET 0x2000000
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#define KERNEL_PD_END 0xF1000000
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#define KERNEL_PT1024_BASE 0xFFE00000
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#define KERNEL_QUICKMAP_PT (KERNEL_PT1024_BASE + 0x6000)
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#define KERNEL_QUICKMAP_PD (KERNEL_PT1024_BASE + 0x7000)
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#define KERNEL_QUICKMAP_PER_CPU_BASE (KERNEL_PT1024_BASE + 0x8000)
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#define KERNEL_PHYSICAL_PAGES_BASE (KERNEL_BASE + KERNEL_PD_OFFSET)
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#define USER_RANGE_CEILING 0xBE000000
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