[PULL 2/9] memory: Display MemoryRegion name in read/write ops trace events

[Laurent Vivier <laurent@vivier.eu>]

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

MemoryRegion names is cached on first call to memory_region_name(),
so displaying the name is trace events is cheap. Add it for read /
write ops.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210307074833.143106-1-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 softmmu/memory.c     | 12 ++++++++----
 softmmu/trace-events |  4 ++--
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/softmmu/memory.c b/softmmu/memory.c
index f0161515e96d..24a97c8b1f9a 100644
--- a/softmmu/memory.c
+++ b/softmmu/memory.c
@@ -442,7 +442,8 @@ static MemTxResult  memory_region_read_accessor(MemoryRegion *mr,
         trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size);
     } else if (trace_event_get_state_backends(TRACE_MEMORY_REGION_OPS_READ)) {
         hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
-        trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size);
+        trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size,
+                                     memory_region_name(mr));
     }
     memory_region_shift_read_access(value, shift, mask, tmp);
     return MEMTX_OK;
@@ -464,7 +465,8 @@ static MemTxResult memory_region_read_with_attrs_accessor(MemoryRegion *mr,
         trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size);
     } else if (trace_event_get_state_backends(TRACE_MEMORY_REGION_OPS_READ)) {
         hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
-        trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size);
+        trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size,
+                                     memory_region_name(mr));
     }
     memory_region_shift_read_access(value, shift, mask, tmp);
     return r;
@@ -484,7 +486,8 @@ static MemTxResult memory_region_write_accessor(MemoryRegion *mr,
         trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size);
     } else if (trace_event_get_state_backends(TRACE_MEMORY_REGION_OPS_WRITE)) {
         hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
-        trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size);
+        trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size,
+                                      memory_region_name(mr));
     }
     mr->ops->write(mr->opaque, addr, tmp, size);
     return MEMTX_OK;
@@ -504,7 +507,8 @@ static MemTxResult memory_region_write_with_attrs_accessor(MemoryRegion *mr,
         trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size);
     } else if (trace_event_get_state_backends(TRACE_MEMORY_REGION_OPS_WRITE)) {
         hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
-        trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size);
+        trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size,
+                                      memory_region_name(mr));
     }
     return mr->ops->write_with_attrs(mr->opaque, addr, tmp, size, attrs);
 }
diff --git a/softmmu/trace-events b/softmmu/trace-events
index d18ac41e4e34..7b278590a0e2 100644
--- a/softmmu/trace-events
+++ b/softmmu/trace-events
@@ -9,8 +9,8 @@ cpu_in(unsigned int addr, char size, unsigned int val) "addr 0x%x(%c) value %u"
 cpu_out(unsigned int addr, char size, unsigned int val) "addr 0x%x(%c) value %u"
 
 # memory.c
-memory_region_ops_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
-memory_region_ops_write(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
+memory_region_ops_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size, const char *name) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u name '%s'"
+memory_region_ops_write(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size, const char *name) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u name '%s'"
 memory_region_subpage_read(int cpu_index, void *mr, uint64_t offset, uint64_t value, unsigned size) "cpu %d mr %p offset 0x%"PRIx64" value 0x%"PRIx64" size %u"
 memory_region_subpage_write(int cpu_index, void *mr, uint64_t offset, uint64_t value, unsigned size) "cpu %d mr %p offset 0x%"PRIx64" value 0x%"PRIx64" size %u"
 memory_region_ram_device_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
-- 
2.31.1