[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] Re: [PATCH v2 12/15] monitor: Add basic device state vi

From: Anthony Liguori
Subject: Re: [Qemu-devel] Re: [PATCH v2 12/15] monitor: Add basic device state visualization
Date: Mon, 24 May 2010 17:27:53 -0500
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20091209 Fedora/3.0-4.fc12 Lightning/1.0pre Thunderbird/3.0

On 05/24/2010 05:12 PM, Jan Kiszka wrote:
Anthony Liguori wrote:
On 05/24/2010 03:35 PM, Jan Kiszka wrote:
In contrast to save/loadvm, device_show does not provide a
backward-compatible output. Not only field names can change (as a result
of internal refactoring),
Field names could change, but that seems unlikely and unnecessary.
Actually, this may happen to improve the output format for device_show,
either via renaming the fields or annotating it (once we have the latter

I don't think it's a huge win vs. stability.

The output of device_show when
specifying -M pc-0.13 should always be the same.  If it's not, I believe
that's a bug.

The output of device_show across multiple qemu versions without
specifying a -M could certainly be different but that's to be expected
since you have a different hardware model.
It will be different as soon as the version_id of a dumped vmstate
changes, even independent of -M.

But QMP stability is only guaranteed for releases and -M pc-0.12 should (in a perfect world) always dump out the same versions regardless of whether it's qemu-0.12, qemu-0.13, etc.


Anthony Liguori


reply via email to

[Prev in Thread] Current Thread [Next in Thread]