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From: Halsey <halsey.pian@gmail.com>
Date: Mon, 1 Dec 2014 22:25:40 +0800
Subject: Re: [Qemu-devel] Help: Convert HDD to QCOW2 img
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To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: qemu-devel <qemu-devel@nongnu.org>

Hi Stefan,=20

Thanks for so much info you provided.=20

Okay, I would keep qemu-devel mailing list in the loop, no problem.

Currently, I have finished the coding of the wrapper, now testing the bdrv_r=
ead/write qcow2 img. I would look into these libraries and incorporate them b=
ased on the concept of interface design.

Thanks.

Halsey

Sent from my iPhone

> On 2014=C4=EA12=D4=C21=C8=D5, at 17:52, Stefan Hajnoczi <stefanha@gmail.co=
m> wrote:
>=20
> On Mon, Dec 1, 2014 at 9:40 AM, Halsey Pian <halsey.pian@gmail.com> wrote:=

>=20
> Please keep qemu-devel@nongnu.org CCed so the discussion stays on the
> mailing list.  I have added it back.
>=20
>> Hi Stefan, not know if there is similar module, currently I have not seen=
 it. If yes, please forgive me.  And for the program if it
>> is unique,  there should be some policies for involving QEMU team, right?=
 Thanks.
>=20
> QEMU does not have something directly equivalent to VMware's SDK for stora=
ge.
>=20
> But there is a very powerful API called libguestfs.  Maybe it does
> what you want:
> http://libguestfs.org/
>=20
> libvirt has APIs for snapshotting and managing storage:
> http://libvirt.org/html/libvirt-libvirt-storage.html
>=20
> QEMU's qemu-img supports JSON output to make it easy to parse.
> qemu-nbd can be used for read-write access.
>=20
> There was an attempt to create something called libqblock but the work
> was never completed.  I guess your approach is similar:
> https://lists.gnu.org/archive/html/qemu-devel/2013-02/msg02356.html
>=20
> Stefan