From: Christoph Hellwig <hch@lst.de>
To: Kevin Wolf <kwolf@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>,
Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>,
qemu-devel@nongnu.org, Christoph Hellwig <hch@lst.de>,
Paolo Bonzini <pbonzini@redhat.com>,
Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Subject: Re: [Qemu-devel] [RFC] introduce a dynamic library to expose qemu block API
Date: Fri, 13 Jul 2012 12:55:56 +0200 [thread overview]
Message-ID: <20120713105556.GA2025@lst.de> (raw)
In-Reply-To: <4FFFFBA1.9030007@redhat.com>
On Fri, Jul 13, 2012 at 12:42:41PM +0200, Kevin Wolf wrote:
> It still feels a bit more like qemu-io-style operations. Not sure what
> your use case looks like exactly, but adding a qemu-io command that
> reads data from a file and writes it at a given offset into the images
> (or vice versa) should be easy. This would be more or less a qemu-dd.
We already have that if you read/write the whole image, it's called
qemu-img convert.
> If you need to get data from stdin or output it to stdout, then it might
> not be the right solution.
That is the use case. We could appromite it by writing a temp file and
using qemu-img convert, but that's not very efficient.
next prev parent reply other threads:[~2012-07-13 10:56 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-09 8:54 [Qemu-devel] [RFC] introduce a dynamic library to expose qemu block API Wenchao Xia
2012-07-09 9:13 ` Paolo Bonzini
2012-07-10 5:04 ` Wenchao Xia
2012-07-10 7:17 ` Paolo Bonzini
2012-07-13 9:16 ` Stefan Hajnoczi
2012-07-13 9:51 ` Paolo Bonzini
2012-07-13 11:33 ` Paolo Bonzini
2012-07-13 15:03 ` Michael Tokarev
2012-07-13 15:17 ` Blue Swirl
2012-07-13 17:07 ` Stefan Weil
2012-07-13 22:55 ` Lluís Vilanova
2012-07-16 10:39 ` Stefan Hajnoczi
2012-07-23 11:55 ` Lluís Vilanova
2012-07-23 12:09 ` Paolo Bonzini
2012-07-24 9:33 ` Lluís Vilanova
2012-07-16 8:16 ` Wenchao Xia
2012-07-16 8:19 ` Paolo Bonzini
2012-07-18 8:51 ` Wenchao Xia
2012-07-18 9:03 ` Paolo Bonzini
2012-07-18 15:28 ` Kevin Wolf
2012-07-18 9:41 ` Stefan Hajnoczi
2012-07-18 10:42 ` Paolo Bonzini
2012-07-18 12:50 ` Stefan Hajnoczi
2012-07-18 13:51 ` Andreas Färber
2012-07-18 13:55 ` Kevin Wolf
2012-07-18 13:58 ` Daniel P. Berrange
2012-07-18 14:02 ` Paolo Bonzini
2012-07-18 14:12 ` Daniel P. Berrange
2012-07-18 15:23 ` Kevin Wolf
2012-07-18 15:35 ` Daniel P. Berrange
2012-07-19 11:37 ` Paolo Bonzini
2012-07-20 11:38 ` Daniel P. Berrange
2012-07-20 11:53 ` Paolo Bonzini
2012-07-23 18:15 ` Blue Swirl
2012-07-25 8:08 ` Wenchao Xia
2012-07-09 9:27 ` Daniel P. Berrange
2012-07-10 5:37 ` Wenchao Xia
2012-07-10 7:18 ` Paolo Bonzini
2012-07-13 9:12 ` Stefan Hajnoczi
2012-07-13 9:16 ` Daniel P. Berrange
2012-07-13 9:47 ` Stefan Hajnoczi
2012-07-16 7:48 ` Wenchao Xia
2012-07-09 14:36 ` Christoph Hellwig
2012-07-10 5:42 ` Wenchao Xia
2012-07-13 9:13 ` Stefan Hajnoczi
2012-07-13 9:27 ` Christoph Hellwig
2012-07-13 9:43 ` Stefan Hajnoczi
2012-07-13 10:42 ` Kevin Wolf
2012-07-13 10:55 ` Christoph Hellwig [this message]
2012-07-13 11:19 ` Kevin Wolf
2012-07-16 7:55 ` Wenchao Xia
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