diff mbox series

[v6,01/54] trace: expand mem_info:size_shift to 4 bits

Message ID 20191017131615.19660-2-alex.bennee@linaro.org
State New
Headers show
Series Support for TCG plugins | expand

Commit Message

Alex Bennée Oct. 17, 2019, 1:15 p.m. UTC 
From: "Emilio G. Cota" <cota@braap.org>

This will allow us to trace 32k-long memory accesses (although our
maximum is something like 256 bytes at the moment).

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
[AJB: expanded to 3->4 bits]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
v5
  - return the tweaks to mem-internal.h
---
 trace-events         | 2 +-
 trace/mem-internal.h | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/trace-events b/trace-events
index 20821ba545..22133dfd3f 100644
--- a/trace-events
+++ b/trace-events
@@ -149,7 +149,7 @@  vcpu guest_cpu_reset(void)
 # Access information can be parsed as:
 #
 # struct mem_info {
-#     uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */
+#     uint8_t size_shift : 4; /* interpreted as "1 << size_shift" bytes */
 #     bool    sign_extend: 1; /* sign-extended */
 #     uint8_t endianness : 1; /* 0: little, 1: big */
 #     bool    store      : 1; /* wheter it's a store operation */
diff --git a/trace/mem-internal.h b/trace/mem-internal.h
index 3444fbc596..1a010c1b27 100644
--- a/trace/mem-internal.h
+++ b/trace/mem-internal.h
@@ -10,10 +10,10 @@ 
 #ifndef TRACE__MEM_INTERNAL_H
 #define TRACE__MEM_INTERNAL_H
 
-#define TRACE_MEM_SZ_SHIFT_MASK 0x7 /* size shift mask */
-#define TRACE_MEM_SE (1ULL << 3)    /* sign extended (y/n) */
-#define TRACE_MEM_BE (1ULL << 4)    /* big endian (y/n) */
-#define TRACE_MEM_ST (1ULL << 5)    /* store (y/n) */
+#define TRACE_MEM_SZ_SHIFT_MASK 0xf /* size shift mask */
+#define TRACE_MEM_SE (1ULL << 4)    /* sign extended (y/n) */
+#define TRACE_MEM_BE (1ULL << 5)    /* big endian (y/n) */
+#define TRACE_MEM_ST (1ULL << 6)    /* store (y/n) */
 
 static inline uint8_t trace_mem_build_info(
     int size_shift, bool sign_extend, MemOp endianness, bool store)