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Re: [Qemu-devel] [CFR 4/10] command


From: Anthony Liguori
Subject: Re: [Qemu-devel] [CFR 4/10] command
Date: Tue, 15 Jun 2010 12:02:37 -0500
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100423 Lightning/1.0b1 Thunderbird/3.0.4

On 06/15/2010 11:30 AM, Anthony Liguori wrote:
change
------

Change a removable medium or VNC configuration.

I think this command is awkward and should be split into a change-media and change-vnc-password command.

Arguments:

- "device": device name (json-string)
- "target": filename or item (json-string)
- "arg": additional argument (json-string, optional)

For change-media:

1) what happens if the drive does not support removable media?
2) what happens if the drive is locked?
3) what happens if media is not currently present?
4) what if I want to pass additional options to target like format=raw?
5) is the media change immediately present to the guest upon return of the command?

For change-vnc-password:

1) what if VNC is not in use?
2) what if I don't have vnc authentication enabled?
3) does changing the password have any affect on existing sessions?
4) is a new password required immediately after the command completes?

Regards,

Anthony Liguori

Examples:

1. Change a removable medium

->  { "execute": "change",
              "arguments": { "device": "ide1-cd0",
                             "target": "/srv/images/Fedora-12-x86_64-DVD.iso" } 
}
<- { "return": {} }

2. Change VNC password

->  { "execute": "change",
              "arguments": { "device": "vnc", "target": "password",
                             "arg": "foobar1" } }
<- { "return": {} }






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