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[Qemu-discuss] Reading QEMU VM dump/save files and QEMU memory snapshots


From: Arnabjyoti Kalita
Subject: [Qemu-discuss] Reading QEMU VM dump/save files and QEMU memory snapshots
Date: Wed, 26 Jul 2017 14:48:14 -0400

Hello,

I was looking for ways to read in QEMU memory dump files/ QEMU snapshot
files.

I currently have two files with me - one of them is a snapshot of the
memory which I created using the command (virsh snapshot-create-as
--memspec ... ) and the other is a dump of the QEMU guest memory, obtained
by the command (virsh dump ...).

The file generated consists of various sections- like VGA-RAM, BIOS, ROM
etc. I want to read in the contents of the file - specifically the PC.RAM
contents, since I am only interested in reading the contents of the
physical memory.

I am trying to use an "unofficial" tool currently -
https://github.com/juergh/lqs2mem.py

But it seems that there is some problem with that code, since it is not
able to read in the sections of the file. (The last commit was a year
back). So I am not being able to use it currently.

How can I read in the contents of a particular section inside the QEMU-save
file ? Do you have any ideas/knowledge of any other tools available ? How
can I obtain the contents of the physical memory from this file ?

Thanks and Regards,
Arnab


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