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4d3ad3c3ba
Split out mmap_lock, et al from page-protection.h to a new header. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/*
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* Internal execution defines for qemu (target specific)
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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#ifndef ACCEL_TCG_INTERNAL_TARGET_H
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#define ACCEL_TCG_INTERNAL_TARGET_H
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#include "exec/exec-all.h"
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#include "exec/translation-block.h"
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#include "tb-internal.h"
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#include "tcg-target-mo.h"
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#include "exec/mmap-lock.h"
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/*
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* Access to the various translations structures need to be serialised
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* via locks for consistency. In user-mode emulation access to the
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* memory related structures are protected with mmap_lock.
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* In !user-mode we use per-page locks.
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*/
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#ifdef CONFIG_USER_ONLY
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#define assert_memory_lock() tcg_debug_assert(have_mmap_lock())
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#else
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#define assert_memory_lock()
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#endif
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#if defined(CONFIG_SOFTMMU) && defined(CONFIG_DEBUG_TCG)
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void assert_no_pages_locked(void);
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#else
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static inline void assert_no_pages_locked(void) { }
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#endif
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#ifdef CONFIG_USER_ONLY
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static inline void page_table_config_init(void) { }
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#else
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void page_table_config_init(void);
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#endif
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#ifndef CONFIG_USER_ONLY
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G_NORETURN void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr);
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#endif /* CONFIG_USER_ONLY */
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/**
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* tcg_req_mo:
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* @type: TCGBar
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*
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* Filter @type to the barrier that is required for the guest
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* memory ordering vs the host memory ordering. A non-zero
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* result indicates that some barrier is required.
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*
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* If TCG_GUEST_DEFAULT_MO is not defined, assume that the
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* guest requires strict ordering.
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*
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* This is a macro so that it's constant even without optimization.
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*/
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#ifdef TCG_GUEST_DEFAULT_MO
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# define tcg_req_mo(type) \
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((type) & TCG_GUEST_DEFAULT_MO & ~TCG_TARGET_DEFAULT_MO)
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#else
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# define tcg_req_mo(type) ((type) & ~TCG_TARGET_DEFAULT_MO)
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#endif
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/**
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* cpu_req_mo:
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* @type: TCGBar
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*
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* If tcg_req_mo indicates a barrier for @type is required
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* for the guest memory model, issue a host memory barrier.
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*/
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#define cpu_req_mo(type) \
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do { \
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if (tcg_req_mo(type)) { \
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smp_mb(); \
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} \
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} while (0)
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#endif /* ACCEL_TCG_INTERNAL_H */
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