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author | Hollis Blanchard <hollis_blanchard@mentor.com> | 2016-02-08 16:03:05 -0800 |
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committer | Stefan Hajnoczi <stefanha@redhat.com> | 2016-03-01 13:20:15 +0000 |
commit | 4779dc1d19f0e3e20d2d4843b988c72b9235bbe0 (patch) | |
tree | 3784536bc3470bf5b0fa14b47ad73284f13f2c75 /memory.c | |
parent | 23d92d68e72503dfb9fa1dba89f02f5488377b6c (diff) | |
download | qemu-4779dc1d19f0e3e20d2d4843b988c72b9235bbe0.zip qemu-4779dc1d19f0e3e20d2d4843b988c72b9235bbe0.tar.gz qemu-4779dc1d19f0e3e20d2d4843b988c72b9235bbe0.tar.bz2 |
trace: use addresses instead of offsets in memory tracepoints
When memory_region_ops tracepoints are enabled, calculate and record the
absolute address being accessed. Otherwise, we only get offsets into the
memory region instead of addresses.
[Fixed "offset" -> "addr" in trace event format strings.
--Stefan]
Signed-off-by: Hollis Blanchard <hollis_blanchard@mentor.com>
Message-id: 1454976185-30095-3-git-send-email-hollis_blanchard@mentor.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'memory.c')
-rw-r--r-- | memory.c | 44 |
1 files changed, 32 insertions, 12 deletions
@@ -372,6 +372,20 @@ static void adjust_endianness(MemoryRegion *mr, uint64_t *data, unsigned size) } } +static hwaddr memory_region_to_absolute_addr(MemoryRegion *mr, hwaddr offset) +{ + MemoryRegion *root; + hwaddr abs_addr = offset; + + abs_addr += mr->addr; + for (root = mr; root->container; ) { + root = root->container; + abs_addr += root->addr; + } + + return abs_addr; +} + static MemTxResult memory_region_oldmmio_read_accessor(MemoryRegion *mr, hwaddr addr, uint64_t *value, @@ -385,8 +399,9 @@ static MemTxResult memory_region_oldmmio_read_accessor(MemoryRegion *mr, tmp = mr->ops->old_mmio.read[ctz32(size)](mr->opaque, addr); if (mr->subpage) { trace_memory_region_subpage_read(mr, addr, tmp, size); - } else { - trace_memory_region_ops_read(mr, addr, tmp, size); + } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) { + hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); + trace_memory_region_ops_read(mr, abs_addr, tmp, size); } *value |= (tmp & mask) << shift; return MEMTX_OK; @@ -405,8 +420,9 @@ static MemTxResult memory_region_read_accessor(MemoryRegion *mr, tmp = mr->ops->read(mr->opaque, addr, size); if (mr->subpage) { trace_memory_region_subpage_read(mr, addr, tmp, size); - } else { - trace_memory_region_ops_read(mr, addr, tmp, size); + } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) { + hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); + trace_memory_region_ops_read(mr, abs_addr, tmp, size); } *value |= (tmp & mask) << shift; return MEMTX_OK; @@ -426,8 +442,9 @@ static MemTxResult memory_region_read_with_attrs_accessor(MemoryRegion *mr, r = mr->ops->read_with_attrs(mr->opaque, addr, &tmp, size, attrs); if (mr->subpage) { trace_memory_region_subpage_read(mr, addr, tmp, size); - } else { - trace_memory_region_ops_read(mr, addr, tmp, size); + } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) { + hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); + trace_memory_region_ops_read(mr, abs_addr, tmp, size); } *value |= (tmp & mask) << shift; return r; @@ -446,8 +463,9 @@ static MemTxResult memory_region_oldmmio_write_accessor(MemoryRegion *mr, tmp = (*value >> shift) & mask; if (mr->subpage) { trace_memory_region_subpage_write(mr, addr, tmp, size); - } else { - trace_memory_region_ops_write(mr, addr, tmp, size); + } else if (TRACE_MEMORY_REGION_OPS_WRITE_ENABLED) { + hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); + trace_memory_region_ops_write(mr, abs_addr, tmp, size); } mr->ops->old_mmio.write[ctz32(size)](mr->opaque, addr, tmp); return MEMTX_OK; @@ -466,8 +484,9 @@ static MemTxResult memory_region_write_accessor(MemoryRegion *mr, tmp = (*value >> shift) & mask; if (mr->subpage) { trace_memory_region_subpage_write(mr, addr, tmp, size); - } else { - trace_memory_region_ops_write(mr, addr, tmp, size); + } else if (TRACE_MEMORY_REGION_OPS_WRITE_ENABLED) { + hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); + trace_memory_region_ops_write(mr, abs_addr, tmp, size); } mr->ops->write(mr->opaque, addr, tmp, size); return MEMTX_OK; @@ -486,8 +505,9 @@ static MemTxResult memory_region_write_with_attrs_accessor(MemoryRegion *mr, tmp = (*value >> shift) & mask; if (mr->subpage) { trace_memory_region_subpage_write(mr, addr, tmp, size); - } else { - trace_memory_region_ops_write(mr, addr, tmp, size); + } else if (TRACE_MEMORY_REGION_OPS_WRITE_ENABLED) { + hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); + trace_memory_region_ops_write(mr, abs_addr, tmp, size); } return mr->ops->write_with_attrs(mr->opaque, addr, tmp, size, attrs); } |