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Re: [Qemu-discuss] Regarding QEMU Monitor "x /fmt addr" command

From: Phil Jones
Subject: Re: [Qemu-discuss] Regarding QEMU Monitor "x /fmt addr" command
Date: Thu, 17 Jan 2019 12:02:28 +0000

If I got it correctly - if I want to access memory from a process running under 
Windows OS I will need to translate virtual address to physical address and 
then read it using xp command?
From: Peter Maydell <address@hidden>
Sent: Thursday, January 17, 2019 12:29
To: Phil Jones
Cc: address@hidden
Subject: Re: [Qemu-discuss] Regarding QEMU Monitor "x /fmt addr" command

On Thu, 17 Jan 2019 at 00:22, Phil Jones <address@hidden> wrote:
> I have a few questions about QEMU Monitor interface, there's a command with 
> format "x /fmt addr" - described with "Virtual memory dump starting at addr."
> I'm not 100% sure what "virtual memory" refers to here. Could it be used to 
> dump/read Windows guest virtual memory, or?

It means that you see the same view of memory that the
currently running guest process does -- its "virtual memory
space". It takes virtual addresses, which are passed through
the guest CPU's MMU, just as any memory access from the
guest process does. This is as opposed to the view of "physical
memory", which takes physical addresses and shows you
the underlying memory and devices that the guest OS
has access to.

-- PMM

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