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Re: [Qemu-devel] [Patch] Support translating Guest physical address to H

From: Anthony Liguori
Subject: Re: [Qemu-devel] [Patch] Support translating Guest physical address to Host virtual address.
Date: Wed, 03 Feb 2010 08:23:50 -0600
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20091209 Fedora/3.0-4.fc12 Lightning/1.0pre Thunderbird/3.0

On 02/03/2010 08:11 AM, Kleen, Andi wrote:
If you want to integrate MCE testing into qemu using the host
to inject
MCEs, you'll need to figure out a way to do it that allows the whole
thing to be done without potentially killing the wrong process or
In the test it's very simple. The process is kept running during
the injection. With that its addresses do not change.

So that problem is already solved.

The feature doesn't aim to be a general feature for normal users,
it's merely for QA.

Yeah, but if we put a feature in qemu, we need to be able to support it for anyone who wants to use it.

Adding something for a very particular test suite that won't work in normal circumstances is just asking for trouble IMHO.

I still don't really understand all the pieces that are involved here. Why do we need a guest physical address? Are we testing reflecting MCEs from the host into a guest? Since that functionality isn't in qemu aren't we putting the cart before the horse here?


Anthony Liguori

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