380e18ade4
Currently, the hyp code cannot make full use of a bss, as the kernel section is mapped read-only. While this mapping could simply be changed to read-write, it would intermingle even more the hyp and kernel state than they currently are. Instead, introduce a __hyp_bss section, that uses reserved pages, and create the appropriate RW hyp mappings during KVM init. Acked-by: Will Deacon <will@kernel.org> Signed-off-by: Quentin Perret <qperret@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210319100146.1149909-8-qperret@google.com
26 lines
986 B
C
26 lines
986 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2016 ARM Limited
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*/
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#ifndef __ASM_SECTIONS_H
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#define __ASM_SECTIONS_H
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#include <asm-generic/sections.h>
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extern char __alt_instructions[], __alt_instructions_end[];
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extern char __hibernate_exit_text_start[], __hibernate_exit_text_end[];
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extern char __hyp_idmap_text_start[], __hyp_idmap_text_end[];
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extern char __hyp_text_start[], __hyp_text_end[];
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extern char __hyp_rodata_start[], __hyp_rodata_end[];
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extern char __hyp_reloc_begin[], __hyp_reloc_end[];
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extern char __hyp_bss_start[], __hyp_bss_end[];
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extern char __idmap_text_start[], __idmap_text_end[];
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extern char __initdata_begin[], __initdata_end[];
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extern char __inittext_begin[], __inittext_end[];
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extern char __exittext_begin[], __exittext_end[];
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extern char __irqentry_text_start[], __irqentry_text_end[];
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extern char __mmuoff_data_start[], __mmuoff_data_end[];
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extern char __entry_tramp_text_start[], __entry_tramp_text_end[];
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#endif /* __ASM_SECTIONS_H */
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