mirror of
https://github.com/yuzu-emu/unicorn.git
synced 2024-12-25 22:25:29 +00:00
acdd665668
This patch is based on idea found in patch at git://github.com/jowinter/qemu-trustzone.git f3d955c6c0ed8c46bc0eb10b634201032a651dd2 by Johannes Winter <johannes.winter@iaik.tugraz.at>. The TBFLAG captures the SCR NS secure state at the time when a TB is created so the correct bank is accessed on system register accesses. Backports commit 3f342b9e0e64ad681cd39840bfa75ef12d2807c1 from qemu
126 lines
4 KiB
C
126 lines
4 KiB
C
#ifndef TARGET_ARM_TRANSLATE_H
|
|
#define TARGET_ARM_TRANSLATE_H
|
|
|
|
/* internal defines */
|
|
typedef struct DisasContext {
|
|
target_ulong pc;
|
|
uint32_t insn;
|
|
int is_jmp;
|
|
/* Nonzero if this instruction has been conditionally skipped. */
|
|
int condjmp;
|
|
/* The label that will be jumped to when the instruction is skipped. */
|
|
TCGLabel *condlabel;
|
|
/* Thumb-2 conditional execution bits. */
|
|
int condexec_mask;
|
|
int condexec_cond;
|
|
struct TranslationBlock *tb;
|
|
int singlestep_enabled;
|
|
int thumb;
|
|
int bswap_code;
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
int user;
|
|
#endif
|
|
bool ns; /* Use non-secure CPREG bank on access */
|
|
bool cpacr_fpen; /* FP enabled via CPACR.FPEN */
|
|
bool vfp_enabled; /* FP enabled via FPSCR.EN */
|
|
int vec_len;
|
|
int vec_stride;
|
|
/* Immediate value in AArch32 SVC insn; must be set if is_jmp == DISAS_SWI
|
|
* so that top level loop can generate correct syndrome information.
|
|
*/
|
|
uint32_t svc_imm;
|
|
int aarch64;
|
|
int current_el;
|
|
GHashTable *cp_regs;
|
|
uint64_t features; /* CPU features bits */
|
|
/* Because unallocated encodings generate different exception syndrome
|
|
* information from traps due to FP being disabled, we can't do a single
|
|
* "is fp access disabled" check at a high level in the decode tree.
|
|
* To help in catching bugs where the access check was forgotten in some
|
|
* code path, we set this flag when the access check is done, and assert
|
|
* that it is set at the point where we actually touch the FP regs.
|
|
*/
|
|
bool fp_access_checked;
|
|
/* ARMv8 single-step state (this is distinct from the QEMU gdbstub
|
|
* single-step support).
|
|
*/
|
|
bool ss_active;
|
|
bool pstate_ss;
|
|
/* True if the insn just emitted was a load-exclusive instruction
|
|
* (necessary for syndrome information for single step exceptions),
|
|
* ie A64 LDX*, LDAX*, A32/T32 LDREX*, LDAEX*.
|
|
*/
|
|
bool is_ldex;
|
|
/* True if a single-step exception will be taken to the current EL */
|
|
bool ss_same_el;
|
|
/* Bottom two bits of XScale c15_cpar coprocessor access control reg */
|
|
int c15_cpar;
|
|
#define TMP_A64_MAX 16
|
|
int tmp_a64_count;
|
|
TCGv_i64 tmp_a64[TMP_A64_MAX];
|
|
|
|
// Unicorn engine
|
|
struct uc_struct *uc;
|
|
} DisasContext;
|
|
|
|
typedef struct DisasCompare {
|
|
TCGCond cond;
|
|
TCGv_i32 value;
|
|
bool value_global;
|
|
} DisasCompare;
|
|
|
|
static inline int arm_dc_feature(DisasContext *dc, int feature)
|
|
{
|
|
return (dc->features & (1ULL << feature)) != 0;
|
|
}
|
|
|
|
static inline int get_mem_index(DisasContext *s)
|
|
{
|
|
return s->current_el;
|
|
}
|
|
|
|
/* target-specific extra values for is_jmp */
|
|
/* These instructions trap after executing, so the A32/T32 decoder must
|
|
* defer them until after the conditional execution state has been updated.
|
|
* WFI also needs special handling when single-stepping.
|
|
*/
|
|
#define DISAS_WFI 4
|
|
#define DISAS_SWI 5
|
|
/* For instructions which unconditionally cause an exception we can skip
|
|
* emitting unreachable code at the end of the TB in the A64 decoder
|
|
*/
|
|
#define DISAS_EXC 6
|
|
/* WFE */
|
|
#define DISAS_WFE 7
|
|
#define DISAS_HVC 8
|
|
#define DISAS_SMC 9
|
|
|
|
#ifdef TARGET_AARCH64
|
|
void a64_translate_init(struct uc_struct *uc);
|
|
void gen_intermediate_code_internal_a64(ARMCPU *cpu,
|
|
TranslationBlock *tb,
|
|
bool search_pc);
|
|
void gen_a64_set_pc_im(DisasContext *s, uint64_t val);
|
|
#else
|
|
static inline void a64_translate_init(struct uc_struct *uc)
|
|
{
|
|
}
|
|
|
|
static inline void gen_intermediate_code_internal_a64(ARMCPU *cpu,
|
|
TranslationBlock *tb,
|
|
bool search_pc)
|
|
{
|
|
}
|
|
|
|
static inline void gen_a64_set_pc_im(uint64_t val)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
void arm_test_cc(TCGContext *tcg_ctx, DisasCompare *cmp, int cc);
|
|
void arm_free_cc(TCGContext *tcg_ctx, DisasCompare *cmp);
|
|
void arm_jump_cc(TCGContext *tcg_ctx, DisasCompare *cmp, TCGLabel *label);
|
|
void arm_gen_test_cc(TCGContext *tcg_ctx, int cc, TCGLabel *label);
|
|
|
|
#endif /* TARGET_ARM_TRANSLATE_H */
|