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trace: expand mem_info:size_shift to 4 bits 

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>
This commit is contained in:
Emilio G. Cota 2017-11-21 21:03:15 -05:00 committed by Alex Bennée
parent 9bb7350232
commit 291987c306
2 changed files with 5 additions and 5 deletions
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2
trace-events
View File

@ -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 */

8
trace/mem-internal.h
View File

@ -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)