diff --git a/target-arm/Makefile.objs b/target-arm/Makefile.objs index baebc50f68..a11d76ee57 100644 --- a/target-arm/Makefile.objs +++ b/target-arm/Makefile.objs @@ -5,4 +5,4 @@ obj-$(CONFIG_NO_KVM) += kvm-stub.o obj-y += translate.o op_helper.o helper.o cpu.o obj-y += neon_helper.o iwmmxt_helper.o obj-y += gdbstub.o -obj-$(TARGET_AARCH64) += cpu64.o +obj-$(TARGET_AARCH64) += cpu64.o translate-a64.o diff --git a/target-arm/cpu-qom.h b/target-arm/cpu-qom.h index fbe846e373..6502a7b7b3 100644 --- a/target-arm/cpu-qom.h +++ b/target-arm/cpu-qom.h @@ -173,4 +173,9 @@ int arm_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); void arm_gt_ptimer_cb(void *opaque); void arm_gt_vtimer_cb(void *opaque); +#ifdef TARGET_AARCH64 +void aarch64_cpu_dump_state(CPUState *cs, FILE *f, + fprintf_function cpu_fprintf, int flags); +#endif + #endif diff --git a/target-arm/cpu64.c b/target-arm/cpu64.c index faee0f048f..4428f6cffd 100644 --- a/target-arm/cpu64.c +++ b/target-arm/cpu64.c @@ -70,6 +70,9 @@ static void aarch64_cpu_finalizefn(Object *obj) static void aarch64_cpu_class_init(ObjectClass *oc, void *data) { + CPUClass *cc = CPU_CLASS(oc); + + cc->dump_state = aarch64_cpu_dump_state; } static void aarch64_cpu_register(const ARMCPUInfo *info) diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c new file mode 100644 index 0000000000..f120088607 --- /dev/null +++ b/target-arm/translate-a64.c @@ -0,0 +1,139 @@ +/* + * AArch64 translation + * + * Copyright (c) 2013 Alexander Graf + * + * 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 . + */ +#include +#include +#include +#include +#include + +#include "cpu.h" +#include "tcg-op.h" +#include "qemu/log.h" +#include "translate.h" +#include "qemu/host-utils.h" + +#include "helper.h" +#define GEN_HELPER 1 +#include "helper.h" + +static TCGv_i64 cpu_X[32]; +static TCGv_i64 cpu_pc; +static TCGv_i32 pstate; + +static const char *regnames[] = { + "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", + "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", + "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23", + "x24", "x25", "x26", "x27", "x28", "x29", "lr", "sp" +}; + +/* initialize TCG globals. */ +void a64_translate_init(void) +{ + int i; + + cpu_pc = tcg_global_mem_new_i64(TCG_AREG0, + offsetof(CPUARMState, pc), + "pc"); + for (i = 0; i < 32; i++) { + cpu_X[i] = tcg_global_mem_new_i64(TCG_AREG0, + offsetof(CPUARMState, xregs[i]), + regnames[i]); + } + + pstate = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUARMState, pstate), + "pstate"); +} + +void aarch64_cpu_dump_state(CPUState *cs, FILE *f, + fprintf_function cpu_fprintf, int flags) +{ + ARMCPU *cpu = ARM_CPU(cs); + CPUARMState *env = &cpu->env; + int i; + + cpu_fprintf(f, "PC=%016"PRIx64" SP=%016"PRIx64"\n", + env->pc, env->xregs[31]); + for (i = 0; i < 31; i++) { + cpu_fprintf(f, "X%02d=%016"PRIx64, i, env->xregs[i]); + if ((i % 4) == 3) { + cpu_fprintf(f, "\n"); + } else { + cpu_fprintf(f, " "); + } + } + cpu_fprintf(f, "PSTATE=%c%c%c%c\n", + env->pstate & PSTATE_N ? 'n' : '.', + env->pstate & PSTATE_Z ? 'z' : '.', + env->pstate & PSTATE_C ? 'c' : '.', + env->pstate & PSTATE_V ? 'v' : '.'); + cpu_fprintf(f, "\n"); +} + +void gen_a64_set_pc_im(uint64_t val) +{ + tcg_gen_movi_i64(cpu_pc, val); +} + +static void gen_exception(int excp) +{ + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_movi_i32(tmp, excp); + gen_helper_exception(cpu_env, tmp); + tcg_temp_free_i32(tmp); +} + +static void gen_exception_insn(DisasContext *s, int offset, int excp) +{ + gen_a64_set_pc_im(s->pc - offset); + gen_exception(excp); + s->is_jmp = DISAS_JUMP; +} + +static void real_unallocated_encoding(DisasContext *s) +{ + fprintf(stderr, "Unknown instruction: %#x\n", s->insn); + gen_exception_insn(s, 4, EXCP_UDEF); +} + +#define unallocated_encoding(s) do { \ + fprintf(stderr, "unallocated encoding at line: %d\n", __LINE__); \ + real_unallocated_encoding(s); \ + } while (0) + +void disas_a64_insn(CPUARMState *env, DisasContext *s) +{ + uint32_t insn; + + insn = arm_ldl_code(env, s->pc, s->bswap_code); + s->insn = insn; + s->pc += 4; + + switch ((insn >> 24) & 0x1f) { + default: + unallocated_encoding(s); + break; + } + + if (unlikely(s->singlestep_enabled) && (s->is_jmp == DISAS_TB_JUMP)) { + /* go through the main loop for single step */ + s->is_jmp = DISAS_JUMP; + } +} diff --git a/target-arm/translate.c b/target-arm/translate.c index db7a1d4dd5..998bde268d 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -114,6 +114,8 @@ void arm_translate_init(void) offsetof(CPUARMState, exclusive_info), "exclusive_info"); #endif + a64_translate_init(); + #define GEN_HELPER 2 #include "helper.h" } @@ -907,7 +909,11 @@ DO_GEN_ST(st32) static inline void gen_set_pc_im(DisasContext *s, target_ulong val) { - tcg_gen_movi_i32(cpu_R[15], val); + if (s->aarch64) { + gen_a64_set_pc_im(val); + } else { + tcg_gen_movi_i32(cpu_R[15], val); + } } /* Force a TB lookup after an instruction that changes the CPU state. */ @@ -10099,7 +10105,7 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu, do { #ifdef CONFIG_USER_ONLY /* Intercept jump to the magic kernel page. */ - if (dc->pc >= 0xffff0000) { + if (!dc->aarch64 && dc->pc >= 0xffff0000) { /* We always get here via a jump, so know we are not in a conditional execution block. */ gen_exception(EXCP_KERNEL_TRAP); @@ -10147,7 +10153,9 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu, tcg_gen_debug_insn_start(dc->pc); } - if (dc->thumb) { + if (dc->aarch64) { + disas_a64_insn(env, dc); + } else if (dc->thumb) { disas_thumb_insn(env, dc); if (dc->condexec_mask) { dc->condexec_cond = (dc->condexec_cond & 0xe) diff --git a/target-arm/translate.h b/target-arm/translate.h index 5be2eedc90..67c776053b 100644 --- a/target-arm/translate.h +++ b/target-arm/translate.h @@ -4,6 +4,7 @@ /* internal defines */ typedef struct DisasContext { target_ulong pc; + uint32_t insn; int is_jmp; /* Nonzero if this instruction has been conditionally skipped. */ int condjmp; @@ -27,4 +28,22 @@ typedef struct DisasContext { extern TCGv_ptr cpu_env; +#ifdef TARGET_AARCH64 +void a64_translate_init(void); +void disas_a64_insn(CPUARMState *env, DisasContext *s); +void gen_a64_set_pc_im(uint64_t val); +#else +static inline void a64_translate_init(void) +{ +} + +static inline void disas_a64_insn(CPUARMState *env, DisasContext *s) +{ +} + +static inline void gen_a64_set_pc_im(uint64_t val) +{ +} +#endif + #endif /* TARGET_ARM_TRANSLATE_H */