Adds qmp and hmp commands to print dirty bitmap. This is needed only for
testing.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@parallels.com>
---
block.c | 33 +++++++++++++++++++++++++++++++++
blockdev.c | 13 +++++++++++++
hmp-commands.hx | 15 +++++++++++++++
hmp.c | 8 ++++++++
hmp.h | 1 +
include/block/block.h | 2 ++
qapi-schema.json | 3 ++-
qapi/block-core.json | 3 +++
qmp-commands.hx | 5 +++++
9 files changed, 82 insertions(+), 1 deletion(-)
diff --git a/block.c b/block.c
index 2466ba8..6d3f0b2 100644
--- a/block.c
+++ b/block.c
@@ -5374,6 +5374,39 @@ BdrvDirtyBitmap
*bdrv_reclaim_dirty_bitmap(BlockDriverState *bs,
}
+void bdrv_print_dirty_bitmap(BdrvDirtyBitmap *bitmap)
+{
+ unsigned long a = 0, b = 0;
+
+ printf("bitmap '%s'\n", bitmap->name ? bitmap->name : "no name");
+ printf("enabled: %s\n", bitmap->enabled ? "true" : "false");
+ printf("size: %" PRId64 "\n", bitmap->size);
+ printf("granularity: %" PRId64 "\n", bitmap->granularity);
+ printf("dirty regions begin:\n");
+
+ while (true) {
+ for (a = b; a < bitmap->size && !hbitmap_get(bitmap->bitmap, a); ++a) {
+ ;
+ }
+ if (a >= bitmap->size) {
+ break;
+ }
+
+ for (b = a + 1;
+ b < bitmap->size && hbitmap_get(bitmap->bitmap, b);
+ ++b) {
+ ;
+ }
+
+ printf("%ld -> %ld\n", a, b - 1);
+ if (b >= bitmap->size) {
+ break;
+ }
+ }
+
+ printf("dirty regions end\n");
+}
+
BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs,
int granularity,
const char *name,
diff --git a/blockdev.c b/blockdev.c
index 209fedd..66f0437 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2074,6 +2074,19 @@ void qmp_block_dirty_bitmap_add(const char *node_ref,
const char *name,
aio_context_release(aio_context);
}
+void qmp_block_dirty_bitmap_print(const char *node_ref, const char *name,
+ Error **errp)
+{
+ BdrvDirtyBitmap *bitmap;
+
+ bitmap = block_dirty_bitmap_lookup(node_ref, name, NULL, errp);
+ if (!bitmap) {
+ return;
+ }
+
+ bdrv_print_dirty_bitmap(bitmap);
+}
+
void qmp_block_dirty_bitmap_remove(const char *node_ref, const char *name,
Error **errp)
{
diff --git a/hmp-commands.hx b/hmp-commands.hx
index e37bc8b..a9be506 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -58,6 +58,21 @@ Quit the emulator.
ETEXI
{
+ .name = "print_dirty_bitmap",
+ .args_type = "device:B,bitmap:s",
+ .params = "device bitmap",
+ .help = "print dirty bitmap",
+ .user_print = monitor_user_noop,
+ .mhandler.cmd = hmp_print_dirty_bitmap,
+ },
+
+STEXI
+@item print_dirty_bitmap device_id bitmap_name
+@findex print_dirty_bitmap
+Print dirty bitmap meta information and dirty regions.
+ETEXI
+
+ {
.name = "block_resize",
.args_type = "device:B,size:o",
.params = "device size",
diff --git a/hmp.c b/hmp.c
index 63b19c7..a269145 100644
--- a/hmp.c
+++ b/hmp.c
@@ -782,6 +782,14 @@ void hmp_info_tpm(Monitor *mon, const QDict *qdict)
qapi_free_TPMInfoList(info_list);
}
+void hmp_print_dirty_bitmap(Monitor *mon, const QDict *qdict)
+{
+ const char *device = qdict_get_str(qdict, "device");
+ const char *name = qdict_get_str(qdict, "bitmap");
+
+ qmp_block_dirty_bitmap_print(device, name, NULL);
+}
+
void hmp_quit(Monitor *mon, const QDict *qdict)
{
monitor_suspend(mon);
diff --git a/hmp.h b/hmp.h
index 4bb5dca..6bbbc33 100644
--- a/hmp.h
+++ b/hmp.h
@@ -19,6 +19,7 @@
#include "qapi-types.h"
#include "qapi/qmp/qdict.h"
+void hmp_print_dirty_bitmap(Monitor *mon, const QDict *qdict);
void hmp_info_name(Monitor *mon, const QDict *qdict);
void hmp_info_version(Monitor *mon, const QDict *qdict);
void hmp_info_kvm(Monitor *mon, const QDict *qdict);
diff --git a/include/block/block.h b/include/block/block.h
index cb1f28d..6cf067f 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -459,6 +459,8 @@ void bdrv_dirty_iter_init(BlockDriverState *bs,
void bdrv_set_dirty_iter(struct HBitmapIter *hbi, int64_t offset);
int64_t bdrv_get_dirty_count(BlockDriverState *bs, BdrvDirtyBitmap *bitmap);
+void bdrv_print_dirty_bitmap(BdrvDirtyBitmap *bitmap);
+
void bdrv_enable_copy_on_read(BlockDriverState *bs);
void bdrv_disable_copy_on_read(BlockDriverState *bs);
diff --git a/qapi-schema.json b/qapi-schema.json
index 85f55d9..1475f69 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -1263,7 +1263,8 @@
'blockdev-snapshot-internal-sync': 'BlockdevSnapshotInternal',
'block-dirty-bitmap-add': 'BlockDirtyBitmapAdd',
'block-dirty-bitmap-enable': 'BlockDirtyBitmap',
- 'block-dirty-bitmap-disable': 'BlockDirtyBitmap'
+ 'block-dirty-bitmap-disable': 'BlockDirtyBitmap',
+ 'block-dirty-bitmap-print': 'BlockDirtyBitmap'
} }
##
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 1892b50..3e1edb1 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -982,6 +982,9 @@
{'command': 'block-dirty-bitmap-disable',
'data': 'BlockDirtyBitmap' }
+{'command': 'block-dirty-bitmap-print',
+ 'data': 'BlockDirtyBitmap' }
+
##
# @block_set_io_throttle:
#
diff --git a/qmp-commands.hx b/qmp-commands.hx
index 479d4f5..8065715 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -1222,6 +1222,11 @@ EQMP
.args_type = "node-ref:B,name:s",
.mhandler.cmd_new = qmp_marshal_input_block_dirty_bitmap_disable,
},
+ {
+ .name = "block-dirty-bitmap-print",
+ .args_type = "node-ref:B,name:s",
+ .mhandler.cmd_new = qmp_marshal_input_block_dirty_bitmap_print,
+ },
SQMP
