diff options
| -rw-r--r-- | blockdev.c | 6 | ||||
| -rw-r--r-- | qapi-schema.json | 7 | ||||
| -rw-r--r-- | qmp-commands.hx | 6 | ||||
| -rwxr-xr-x | tests/qemu-iotests/055 | 36 |
4 files changed, 38 insertions, 17 deletions
diff --git a/blockdev.c b/blockdev.c index b3a57e0c1d..c5abd65182 100644 --- a/blockdev.c +++ b/blockdev.c @@ -936,6 +936,7 @@ static void drive_backup_prepare(BlkTransactionState *common, Error **errp) qmp_drive_backup(backup->device, backup->target, backup->has_format, backup->format, + backup->sync, backup->has_mode, backup->mode, backup->has_speed, backup->speed, backup->has_on_source_error, backup->on_source_error, @@ -1421,6 +1422,7 @@ void qmp_block_commit(const char *device, void qmp_drive_backup(const char *device, const char *target, bool has_format, const char *format, + enum MirrorSyncMode sync, bool has_mode, enum NewImageMode mode, bool has_speed, int64_t speed, bool has_on_source_error, BlockdevOnError on_source_error, @@ -1435,6 +1437,10 @@ void qmp_drive_backup(const char *device, const char *target, int64_t size; int ret; + if (sync != MIRROR_SYNC_MODE_FULL) { + error_setg(errp, "only sync mode 'full' is currently supported"); + return; + } if (!has_speed) { speed = 0; } diff --git a/qapi-schema.json b/qapi-schema.json index b251d282cc..cf57783caf 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -1634,6 +1634,10 @@ # @format: #optional the format of the new destination, default is to # probe if @mode is 'existing', else the format of the source # +# @sync: what parts of the disk image should be copied to the destination +# (all the disk, only the sectors allocated in the topmost image, or +# only new I/O). +# # @mode: #optional whether and how QEMU should create a new image, default is # 'absolute-paths'. # @@ -1655,7 +1659,8 @@ ## { 'type': 'DriveBackup', 'data': { 'device': 'str', 'target': 'str', '*format': 'str', - '*mode': 'NewImageMode', '*speed': 'int', + 'sync': 'MirrorSyncMode', '*mode': 'NewImageMode', + '*speed': 'int', '*on-source-error': 'BlockdevOnError', '*on-target-error': 'BlockdevOnError' } } diff --git a/qmp-commands.hx b/qmp-commands.hx index 362f0e1ef8..e075df423a 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -913,7 +913,7 @@ EQMP { .name = "drive-backup", - .args_type = "device:B,target:s,speed:i?,mode:s?,format:s?," + .args_type = "sync:s,device:B,target:s,speed:i?,mode:s?,format:s?," "on-source-error:s?,on-target-error:s?", .mhandler.cmd_new = qmp_marshal_input_drive_backup, }, @@ -939,6 +939,10 @@ Arguments: - "format": the format of the new destination, default is to probe if 'mode' is 'existing', else the format of the source (json-string, optional) +- "sync": what parts of the disk image should be copied to the destination; + possibilities include "full" for all the disk, "top" for only the sectors + allocated in the topmost image, or "none" to only replicate new I/O + (MirrorSyncMode). - "mode": whether and how QEMU should create a new image (NewImageMode, optional, default 'absolute-paths') - "speed": the maximum speed, in bytes per second (json-int, optional) diff --git a/tests/qemu-iotests/055 b/tests/qemu-iotests/055 index 887c959a3d..c66f8dbd7d 100755 --- a/tests/qemu-iotests/055 +++ b/tests/qemu-iotests/055 @@ -54,7 +54,7 @@ class TestSingleDrive(iotests.QMPTestCase): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-backup', device='drive0', - target=target_img) + target=target_img, sync='full') self.assert_qmp(result, 'return', {}) event = self.cancel_and_wait() @@ -64,7 +64,7 @@ class TestSingleDrive(iotests.QMPTestCase): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-backup', device='drive0', - target=target_img) + target=target_img, sync='full') self.assert_qmp(result, 'return', {}) result = self.vm.qmp('block-job-pause', device='drive0') @@ -89,17 +89,17 @@ class TestSingleDrive(iotests.QMPTestCase): def test_medium_not_found(self): result = self.vm.qmp('drive-backup', device='ide1-cd0', - target=target_img) + target=target_img, sync='full') self.assert_qmp(result, 'error/class', 'GenericError') def test_image_not_found(self): result = self.vm.qmp('drive-backup', device='drive0', - mode='existing', target=target_img) + target=target_img, sync='full', mode='existing') self.assert_qmp(result, 'error/class', 'GenericError') def test_device_not_found(self): result = self.vm.qmp('drive-backup', device='nonexistent', - target=target_img) + target=target_img, sync='full') self.assert_qmp(result, 'error/class', 'DeviceNotFound') class TestSetSpeed(iotests.QMPTestCase): @@ -119,7 +119,7 @@ class TestSetSpeed(iotests.QMPTestCase): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-backup', device='drive0', - target=target_img) + target=target_img, sync='full') self.assert_qmp(result, 'return', {}) # Default speed is 0 @@ -140,7 +140,7 @@ class TestSetSpeed(iotests.QMPTestCase): # Check setting speed in drive-backup works result = self.vm.qmp('drive-backup', device='drive0', - target=target_img, speed=4*1024*1024) + target=target_img, sync='full', speed=4*1024*1024) self.assert_qmp(result, 'return', {}) result = self.vm.qmp('query-block-jobs') @@ -154,13 +154,13 @@ class TestSetSpeed(iotests.QMPTestCase): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-backup', device='drive0', - target=target_img, speed=-1) + target=target_img, sync='full', speed=-1) self.assert_qmp(result, 'error/class', 'GenericError') self.assert_no_active_block_jobs() result = self.vm.qmp('drive-backup', device='drive0', - target=target_img) + target=target_img, sync='full') self.assert_qmp(result, 'return', {}) result = self.vm.qmp('block-job-set-speed', device='drive0', speed=-1) @@ -196,7 +196,8 @@ class TestSingleTransaction(iotests.QMPTestCase): result = self.vm.qmp('transaction', actions=[{ 'type': 'drive-backup', 'data': { 'device': 'drive0', - 'target': target_img }, + 'target': target_img, + 'sync': 'full' }, } ]) self.assert_qmp(result, 'return', {}) @@ -210,7 +211,8 @@ class TestSingleTransaction(iotests.QMPTestCase): result = self.vm.qmp('transaction', actions=[{ 'type': 'drive-backup', 'data': { 'device': 'drive0', - 'target': target_img }, + 'target': target_img, + 'sync': 'full' }, } ]) self.assert_qmp(result, 'return', {}) @@ -239,7 +241,8 @@ class TestSingleTransaction(iotests.QMPTestCase): result = self.vm.qmp('transaction', actions=[{ 'type': 'drive-backup', 'data': { 'device': 'ide1-cd0', - 'target': target_img }, + 'target': target_img, + 'sync': 'full' }, } ]) self.assert_qmp(result, 'error/class', 'GenericError') @@ -249,7 +252,8 @@ class TestSingleTransaction(iotests.QMPTestCase): 'type': 'drive-backup', 'data': { 'device': 'drive0', 'mode': 'existing', - 'target': target_img }, + 'target': target_img, + 'sync': 'full' }, } ]) self.assert_qmp(result, 'error/class', 'GenericError') @@ -259,7 +263,8 @@ class TestSingleTransaction(iotests.QMPTestCase): 'type': 'drive-backup', 'data': { 'device': 'nonexistent', 'mode': 'existing', - 'target': target_img }, + 'target': target_img, + 'sync': 'full' }, } ]) self.assert_qmp(result, 'error/class', 'DeviceNotFound') @@ -269,7 +274,8 @@ class TestSingleTransaction(iotests.QMPTestCase): 'type': 'drive-backup', 'data': { 'device': 'nonexistent', 'mode': 'existing', - 'target': target_img }, + 'target': target_img, + 'sync': 'full' }, }, { 'type': 'Abort', 'data': {}, |