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/*
* Internal execution defines for qemu (target agnostic)
*
* Copyright (c) 2003 Fabrice Bellard
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifndef ACCEL_TCG_INTERNAL_COMMON_H
#define ACCEL_TCG_INTERNAL_COMMON_H
#include "exec/cpu-common.h"
#include "exec/translation-block.h"
extern int64_t max_delay;
extern int64_t max_advance;
extern bool one_insn_per_tb;
extern bool icount_align_option;
/*
* Return true if CS is not running in parallel with other cpus, either
* because there are no other cpus or we are within an exclusive context.
*/
static inline bool cpu_in_serial_context(CPUState *cs)
{
return !tcg_cflags_has(cs, CF_PARALLEL) || cpu_in_exclusive_context(cs);
}
/**
* cpu_plugin_mem_cbs_enabled() - are plugin memory callbacks enabled?
* @cs: CPUState pointer
*
* The memory callbacks are installed if a plugin has instrumented an
* instruction for memory. This can be useful to know if you want to
* force a slow path for a series of memory accesses.
*/
static inline bool cpu_plugin_mem_cbs_enabled(const CPUState *cpu)
{
#ifdef CONFIG_PLUGIN
return !!cpu->neg.plugin_mem_cbs;
#else
return false;
#endif
}
TranslationBlock *tb_gen_code(CPUState *cpu, vaddr pc,
uint64_t cs_base, uint32_t flags,
int cflags);
void page_init(void);
void tb_htable_init(void);
void tb_reset_jump(TranslationBlock *tb, int n);
TranslationBlock *tb_link_page(TranslationBlock *tb);
void cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb,
uintptr_t host_pc);
/**
* tlb_init - initialize a CPU's TLB
* @cpu: CPU whose TLB should be initialized
*/
void tlb_init(CPUState *cpu);
/**
* tlb_destroy - destroy a CPU's TLB
* @cpu: CPU whose TLB should be destroyed
*/
void tlb_destroy(CPUState *cpu);
bool tcg_exec_realizefn(CPUState *cpu, Error **errp);
void tcg_exec_unrealizefn(CPUState *cpu);
/* current cflags for hashing/comparison */
uint32_t curr_cflags(CPUState *cpu);
void tb_check_watchpoint(CPUState *cpu, uintptr_t retaddr);
/**
* get_page_addr_code_hostp()
* @env: CPUArchState
* @addr: guest virtual address of guest code
*
* See get_page_addr_code() (full-system version) for documentation on the
* return value.
*
* Sets *@hostp (when @hostp is non-NULL) as follows.
* If the return value is -1, sets *@hostp to NULL. Otherwise, sets *@hostp
* to the host address where @addr's content is kept.
*
* Note: this function can trigger an exception.
*/
tb_page_addr_t get_page_addr_code_hostp(CPUArchState *env, vaddr addr,
void **hostp);
/**
* get_page_addr_code()
* @env: CPUArchState
* @addr: guest virtual address of guest code
*
* If we cannot translate and execute from the entire RAM page, or if
* the region is not backed by RAM, returns -1. Otherwise, returns the
* ram_addr_t corresponding to the guest code at @addr.
*
* Note: this function can trigger an exception.
*/
static inline tb_page_addr_t get_page_addr_code(CPUArchState *env,
vaddr addr)
{
return get_page_addr_code_hostp(env, addr, NULL);
}
#endif
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