![]() Is mapped based on the mapping for the current CPU. gva2gpa addr Print the guest physical address at which the guest’s virtual address addr ![]() gpa2hpa addr Print the host physical address at which the guest’s physical address addr Respectively select 16 or 32 bit code instruction size.ĭump 10 instructions at the current instruction pointer: H or w can be specified with the i format to size can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). ![]() format can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),Ĭ (char) or i (asm instruction). Its syntax is: / count is the number of items to be dumped. xp / fmt addrįmt is a format which tells the command how to format theĭata. gdbserver Start gdbserver session (default port=1234) x/ fmt addr Virtual memory dump starting at addr. If called with option off, the emulation returns to normal mode. singlestep Run the emulation in single step mode. Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting Since 4.0, loadvm stopped accepting snapshot id as parameter. Set the whole virtual machine to the snapshot identified by the tag Since 4.0, savevm stopped allowing the snapshot id to be set, accepting If there is alreadyĪ snapshot with the same tag, it is replaced. Provided, it is used as human readable identifier. savevm tagĬreate a snapshot of the whole virtual machine. log item1 Activate logging of the specified items. trace-event changes status of a trace event trace-file on|off|flush Open, close, or flush the trace file. logfile filename Output logs to filename. ( qemu ) change vnc password Password : ******** screendump filename Save screen into PPM image filename. change diskdevice filename ]Ĭhange the medium for a removable disk device to point to filename. change device settingĬhange the configuration of a device. These errors are always reported to the guest, regardless of the drive’s errorĪctions (drive options rerror, werror). Once a drive hasīeen deleted, the QEMU Block layer returns -EIO which results in IOĮrrors in the guest for applications that are reading/writing to the device. Submitted against the host device underlying the disk. The result is that guest generated IO is no longer drive_del device Remove host block device. eject device Eject a removable medium (use -f to force it). block_job_resume Resume a paused block streaming operation. block_job_pause Pause an active block streaming operation. block_job_complete Manually trigger completion of an active background block operation.įor mirroring, this will switch the device to the destination path. block_job_cancel Stop an active background block operation (streaming, mirroring). block_job_set_speed Set maximum speed for a background block operation. ![]() block_stream Copy data from a backing file into a block device. Resizes image files, it can not resize block devices like LVM volumes. Resize to a lower size is supported,īut should be used with extreme caution. Usually requires guestĪction to see the updated size. block_resize Resize a block image while a guest is running. The command is onlyĪvailable during the preconfig state (i.e. VM initialization using configuration data provided on the command lineĪnd via the QMP monitor during the preconfig state. exit_preconfig This command makes QEMU exit the preconfig state and proceed with You can safely truncate it yourself once the commit operation successfullyĬompletes. If you want the backing file to match the size of the smaller snapshot, Smaller than the backing file, the backing file will not be truncated. Will be resized to be the same size as the snapshot. If the backing file is smaller than the snapshot, then the backing file commit Commit changes to the disk images (if -snapshot is used) or backing files. The following commands are available: help or ? Show the help for all commands or just for command cmd.
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