Re: Can not use hmp block_resize command with -blockdev option

[John Snow]

On 3/16/21 11:43 PM, zhao xiaojun wrote:
Hi,
I use -blockdev option to specify a drive when qemu boot and i want to 
resize it with hmp block_resize command. The hmp block_resize comand's 
arguments: block_resize device new_size.
So I query the device by qmp query_block command, but the device filed 
of the result output is NULL string.

result output:
{
   "return": [
     {
       "io-status": "ok",
       "device": "",
         ...
}

I noticed that the qmp block_resize command supports device or node-name 
as argument.

If i can continue use the the hmp block_resize command with the device 
argument?

Regards.

I'm not sure what you're asking: hmp's block_resize doesn't accept 
node-name arguments as you've found. Are you not able to use QMP's 
block_resize?

--js