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Date: Tue, 15 Oct 2013 14:52:38 +0200
From: Laszlo Ersek <lersek@redhat.com>
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Subject: Re: [Qemu-devel] guest-dump-memory
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To: Phi Debian <phi.debian@gmail.com>
Cc: qemu-devel@nongnu.org

On 10/14/13 10:18, Phi Debian wrote:
> Hi All,
> 
> I tried to subscribe to this list, but never got teh confirm mail.
> 
> So I write here non subscribed, so add my email addr in replies.
> 
> I am trying to use guest-dump-memory on arm (arm32, armv7* name it)
> with qemu 1.6.1. The command is 'implemented' i.e listed in the help,
> but it create an empty file and a replis saying dump-gues-memory is
> not implemented.
> 
> The logs says that ARM implement dump-guest-memory since 1.2
> http://wiki.qemu.org/ChangeLog/1.2
> 
> Is it working ? or did I missed a configuration option?

There are some target-specific functions that qmp_dump_guest_memory()
(and its callees) depend on. For example, see "stubs/dump.c":
- cpu_get_dump_info()
- cpu_get_note_size()

and "qom/cpu.c":
- cpu_write_elf64_note()
- etc.

These have a real implementation for the i386 and s390x targets only.

I don't know why the 1.2 changelog stated otherwise. Probably a typo /
unwanted paste from the x86 section.

Laszlo