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Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to
From: |
Fam Zheng |
Subject: |
Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to physical memory |
Date: |
Thu, 4 Dec 2014 15:38:12 +0800 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Wed, 12/03 22:28, Bryan D. Payne wrote:
> >
> > It is critical as a transport data structure. You have to define a
> > byte-by-byte
> > layout (concerning endianness and padding) and use padding fields together
> > with
> > QEMU_PACKED, so the representation is not dependent on alignment
>
>
> This makes sense for network protocols. But, in this case, the protocol is
> always taking placing over a unix socket on the localhost. This is why I
> wasn't sure that it was necessary.
>
> Just to be clear... the QMP connection could go over the network, but its
> only purpose is to set up the unix socket on the local machine (meaning
> that doing it over the network is kind of pointless, even if it is
> possible). Once the unix socket is setup, the memory access protocol
> happens over that socket.
This doesn't stop the client from using a different alignment than we expect.
It's necessary to be explicit as a binary protocol.
Fam
Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to physical memory, Markus Armbruster, 2014/12/04
- Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to physical memory, Bryan D. Payne, 2014/12/04
- Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to physical memory, Markus Armbruster, 2014/12/05
- Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to physical memory, Bryan D. Payne, 2014/12/05
- Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to physical memory, Markus Armbruster, 2014/12/08
- Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to physical memory, Bryan D. Payne, 2014/12/09
- Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to physical memory, Bryan D. Payne, 2014/12/10
- Re: [Qemu-devel] [PATCH] qmp: extend QMP to provide read/write access to physical memory, Fam Zheng, 2014/12/11