[PATCH v1 03/46] target/loongarch: Add CHECK_ASXE maccro for check LASX enable

[Song Gao]

Signed-off-by: Song Gao <gaosong@loongson.cn>
---
 target/loongarch/cpu.c                       |  2 ++
 target/loongarch/cpu.h                       |  2 ++
 target/loongarch/insn_trans/trans_lasx.c.inc | 10 ++++++++++
 3 files changed, 14 insertions(+)

diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
index 5037cfc02c..c9f9cbb19d 100644
--- a/target/loongarch/cpu.c
+++ b/target/loongarch/cpu.c
@@ -54,6 +54,7 @@ static const char * const excp_names[] = {
     [EXCCODE_DBP] = "Debug breakpoint",
     [EXCCODE_BCE] = "Bound Check Exception",
     [EXCCODE_SXD] = "128 bit vector instructions Disable exception",
+    [EXCCODE_ASXD] = "256 bit vector instructions Disable exception",
 };
 
 const char *loongarch_exception_name(int32_t exception)
@@ -189,6 +190,7 @@ static void loongarch_cpu_do_interrupt(CPUState *cs)
     case EXCCODE_FPD:
     case EXCCODE_FPE:
     case EXCCODE_SXD:
+    case EXCCODE_ASXD:
         env->CSR_BADV = env->pc;
         QEMU_FALLTHROUGH;
     case EXCCODE_BCE:
diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h
index 347950b4d0..6e8d247ae0 100644
--- a/target/loongarch/cpu.h
+++ b/target/loongarch/cpu.h
@@ -440,6 +440,7 @@ static inline int cpu_mmu_index(CPULoongArchState *env, 
bool ifetch)
 #define HW_FLAGS_CRMD_PG    R_CSR_CRMD_PG_MASK   /* 0x10 */
 #define HW_FLAGS_EUEN_FPE   0x04
 #define HW_FLAGS_EUEN_SXE   0x08
+#define HW_FLAGS_EUEN_ASXE  0x10
 
 static inline void cpu_get_tb_cpu_state(CPULoongArchState *env,
                                         target_ulong *pc,
@@ -451,6 +452,7 @@ static inline void cpu_get_tb_cpu_state(CPULoongArchState 
*env,
     *flags = env->CSR_CRMD & (R_CSR_CRMD_PLV_MASK | R_CSR_CRMD_PG_MASK);
     *flags |= FIELD_EX64(env->CSR_EUEN, CSR_EUEN, FPE) * HW_FLAGS_EUEN_FPE;
     *flags |= FIELD_EX64(env->CSR_EUEN, CSR_EUEN, SXE) * HW_FLAGS_EUEN_SXE;
+    *flags |= FIELD_EX64(env->CSR_EUEN, CSR_EUEN, ASXE) * HW_FLAGS_EUEN_ASXE;
 }
 
 void loongarch_cpu_list(void);
diff --git a/target/loongarch/insn_trans/trans_lasx.c.inc 
b/target/loongarch/insn_trans/trans_lasx.c.inc
index 56a9839255..75a77f5dce 100644
--- a/target/loongarch/insn_trans/trans_lasx.c.inc
+++ b/target/loongarch/insn_trans/trans_lasx.c.inc
@@ -4,3 +4,13 @@
  * Copyright (c) 2023 Loongson Technology Corporation Limited
  */
 
+#ifndef CONFIG_USER_ONLY
+#define CHECK_ASXE do { \
+    if ((ctx->base.tb->flags & HW_FLAGS_EUEN_ASXE) == 0) { \
+        generate_exception(ctx, EXCCODE_ASXD); \
+        return true; \
+    } \
+} while (0)
+#else
+#define CHECK_ASXE
+#endif
-- 
2.39.1