Re: Memory image of kvm guest

[Jan Kiszka <jan.kiszka@siemens.com>]

Tomas Kouba wrote:
> Hello,
> is it possible to see and modify guest memory of the guest running under
> kvm?
> For example when I know the address of a kernel symbol, can I read the
> memory
> of the symbol in my application running on host?
> 
> (I am quite new to KVM but similar things are possible in XEN via
> xenctrl library calls).

Even better: Inherited from QEMU, KVM provides a full-blown gdb backend.
So you can do source-level debugging of your guest very comfortably. If
you just want to get the content of some memory chunk: QEMU monitor, 'x'
(as known from gdb, see also qemu/qemu-doc.html). But modification
requires a gdb frontend again.

Jan

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