trace: Split guest_mem_before

There is no point in encoding load/store within a bit of
the memory trace info operand.  Represent atomic operations
as a single read-modify-write tracepoint.  Use MemOpIdx
instead of inventing a form specifically for traces.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 2 insertions, 5 deletions

diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index ee07457..46140cc 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/cputlb.c
@@ -34,7 +34,6 @@
 #include "qemu/atomic128.h"
 #include "exec/translate-all.h"
 #include "trace/trace-root.h"
-#include "trace/mem.h"
 #include "tb-hash.h"
 #include "internal.h"
 #ifdef CONFIG_PLUGIN
@@ -2113,10 +2112,9 @@ static inline uint64_t cpu_load_helper(CPUArchState *env, abi_ptr addr,
                                        MemOp op, FullLoadHelper *full_load)
 {
     MemOpIdx oi = make_memop_idx(op, mmu_idx);
-    uint16_t meminfo = trace_mem_get_info(oi, false);
     uint64_t ret;
 
-    trace_guest_mem_before_exec(env_cpu(env), addr, meminfo);
+    trace_guest_ld_before_exec(env_cpu(env), addr, oi);
 
     ret = full_load(env, addr, oi, retaddr);
 
@@ -2550,9 +2548,8 @@ cpu_store_helper(CPUArchState *env, target_ulong addr, uint64_t val,
                  int mmu_idx, uintptr_t retaddr, MemOp op)
 {
     MemOpIdx oi = make_memop_idx(op, mmu_idx);
-    uint16_t meminfo = trace_mem_get_info(oi, true);
 
-    trace_guest_mem_before_exec(env_cpu(env), addr, meminfo);
+    trace_guest_st_before_exec(env_cpu(env), addr, oi);
 
     store_helper(env, addr, val, oi, retaddr, op);