Trace dcbz

Author: Rot127

target/ppc/helper.h

@@ -789,12 +789,14 @@ DEF_HELPER_2(trace_load_crf, void, i32, i32)
 DEF_HELPER_4(trace_load_spr_reg, void, env, i32, i32, i32)
 DEF_HELPER_4(trace_store_spr_reg, void, env, i32, i32, i32)
 DEF_HELPER_1(trace_mode, void, ptr)
+DEF_HELPER_2(trace_dcbz_i32, void, env, i32)
 #ifdef TARGET_PPC64
 DEF_HELPER_2(trace_load_reg64, void, i32, i64)
 DEF_HELPER_2(trace_store_reg64, void, i32, i64)
 DEF_HELPER_3(trace_load_mem64, void, i64, i64, i32)
 DEF_HELPER_3(trace_store_mem64, void, i64, i64, i32)
 DEF_HELPER_4(trace_load_spr_reg64, void, env, i32, i32, i64)
 DEF_HELPER_4(trace_store_spr_reg64, void, env, i32, i32, i64)
+DEF_HELPER_2(trace_dcbz_i64, void, env, i64)
 #endif
 #endif /* HAS_TRACEWRAP */

target/ppc/trace_helper.c

@@ -73,6 +73,11 @@ void HELPER(trace_store_mem_i64)(uint32_t addr, uint64_t val, MemOp op)
     qemu_trace_add_operand(oi, 0x2);
 }
 
+void HELPER(trace_dcbz_i32)(CPUPPCState *state, uint32_t addr)
+{
+    trace_dcbz(state, addr);
+}
+
 void HELPER(trace_load_reg)(uint32_t reg, uint32_t val)
 {
     OperandInfo *oi = load_store_reg(reg, val, 0);
@@ -116,6 +121,11 @@ void HELPER(trace_store_spr_reg)(CPUPPCState *env, uint32_t reg, uint32_t field,
 void HELPER(trace_mode)(void *mode) { qemu_trace_set_mode(mode); }
 
 #ifdef TARGET_PPC64
+void HELPER(trace_dcbz_i64)(CPUPPCState *state, uint64_t addr)
+{
+    trace_dcbz(state, addr);
+}
+
 void HELPER(trace_load_reg64)(uint32_t reg, uint64_t val)
 {
     OperandInfo *oi = load_store_reg64(reg, val, 0);
@@ -266,4 +276,12 @@ OperandInfo *load_store_crf(uint32_t crf, uint64_t val, int ls) {
 
 OperandInfo *load_store_spr_reg(const char *name, uint64_t val, uint32_t size, int ls) {
     return build_load_store_reg_op(name, ls, &val, size);
-}
+}
+
+void trace_dcbz(CPUPPCState *state, uint64_t addr) {
+    qemu_log("Clear cache at 0x%lx size: %d data: 0x%llx\n", (unsigned long) addr, memop_size(state->dcache_line_size), (unsigned long long) 0);
+    char *val = calloc(state->dcache_line_size, 1);
+    OperandInfo *oi = load_store_mem(addr, 1, val, state->dcache_line_size);
+    qemu_trace_add_operand(oi, 0x2);
+    free(val);
+}

target/ppc/trace_helper.h

@@ -46,5 +46,6 @@ const char *ppc_not_used_reg_names[] = { "vs0", "vs1", "vs2", "vs3", "vs4", "vs5
 
 OperandInfo *load_store_crf(uint32_t reg, uint64_t val, int ls);
 OperandInfo *load_store_spr_reg(const char *name, uint64_t val, uint32_t size, int ls);
+void trace_dcbz(CPUPPCState *state, uint64_t addr);
 
 #endif /* TRACE_HELPER */

target/ppc/translate.c

@@ -141,6 +141,15 @@ static void gen_trace_load_crf(int crf, TCGv_i32 var)
     gen_helper_trace_load_crf(t, var);
     tcg_temp_free_i32(t);
 }
+
+static void gen_trace_dcbz(TCGv addr)
+{
+    #ifdef TARGET_PPC64
+    gen_helper_trace_dcbz_i64(cpu_env, addr);
+    #else
+    gen_helper_trace_dcbz_i32(cpu_env, addr);
+    #endif
+}
 #endif /* HAS_TRACEWRAP */
 
 static inline void log_load_mem_i64(TCGv addr, TCGv_i64 val, MemOp op) {
@@ -5535,6 +5544,7 @@ static void gen_dcbz(DisasContext *ctx)
     tcgv_op = tcg_const_i32(ctx->opcode & 0x03FF000);
     gen_addr_reg_index(ctx, tcgv_addr);
     gen_helper_dcbz(cpu_env, tcgv_addr, tcgv_op);
+    gen_trace_dcbz(tcgv_addr);
     tcg_temp_free(tcgv_addr);
     tcg_temp_free_i32(tcgv_op);
 }