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/*
* TCG specific prototypes for helpers
*
* Copyright (c) 2003 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef I386_HELPER_TCG_H
#define I386_HELPER_TCG_H
#include "exec/exec-all.h"
/* Maximum instruction code size */
#define TARGET_MAX_INSN_SIZE 16
/*
* XXX: This value should match the one returned by CPUID
* and in exec.c
*/
# if defined(TARGET_X86_64)
# define TCG_PHYS_ADDR_BITS 40
# else
# define TCG_PHYS_ADDR_BITS 36
# endif
#define PHYS_ADDR_MASK MAKE_64BIT_MASK(0, TCG_PHYS_ADDR_BITS)
/**
* x86_cpu_do_interrupt:
* @cpu: vCPU the interrupt is to be handled by.
*/
void x86_cpu_do_interrupt(CPUState *cpu);
bool x86_cpu_exec_interrupt(CPUState *cpu, int int_req);
/* helper.c */
bool x86_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
MMUAccessType access_type, int mmu_idx,
bool probe, uintptr_t retaddr);
void breakpoint_handler(CPUState *cs);
/* n must be a constant to be efficient */
static inline target_long lshift(target_long x, int n)
{
if (n >= 0) {
return x << n;
} else {
return x >> (-n);
}
}
/* translate.c */
void tcg_x86_init(void);
/* excp_helper.c */
void QEMU_NORETURN raise_exception(CPUX86State *env, int exception_index);
void QEMU_NORETURN raise_exception_ra(CPUX86State *env, int exception_index,
uintptr_t retaddr);
void QEMU_NORETURN raise_exception_err(CPUX86State *env, int exception_index,
int error_code);
void QEMU_NORETURN raise_exception_err_ra(CPUX86State *env, int exception_index,
int error_code, uintptr_t retaddr);
void QEMU_NORETURN raise_interrupt(CPUX86State *nenv, int intno, int is_int,
int error_code, int next_eip_addend);
/* cc_helper.c */
extern const uint8_t parity_table[256];
/*
* NOTE: the translator must set DisasContext.cc_op to CC_OP_EFLAGS
* after generating a call to a helper that uses this.
*/
static inline void cpu_load_eflags(CPUX86State *env, int eflags,
int update_mask)
{
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
CC_OP = CC_OP_EFLAGS;
env->df = 1 - (2 * ((eflags >> 10) & 1));
env->eflags = (env->eflags & ~update_mask) |
(eflags & update_mask) | 0x2;
}
/* svm_helper.c */
void QEMU_NORETURN cpu_vmexit(CPUX86State *nenv, uint32_t exit_code,
uint64_t exit_info_1, uintptr_t retaddr);
void do_vmexit(CPUX86State *env, uint32_t exit_code, uint64_t exit_info_1);
/* seg_helper.c */
void do_interrupt_x86_hardirq(CPUX86State *env, int intno, int is_hw);
/* smm_helper.c */
void do_smm_enter(X86CPU *cpu);
#endif /* I386_HELPER_TCG_H */
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