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Re: [Qemu-devel] Host API escape
From: |
Derek Fawcus |
Subject: |
Re: [Qemu-devel] Host API escape |
Date: |
Tue, 14 Sep 2004 06:07:26 +0100 |
On Mon, Sep 13, 2004 at 10:43:00PM -0400, EricNorthup wrote:
> Ok, I think the things you can achieve with this mechanism are very
> exciting. But please, *please* do not make another fork in x86!
Huh? What do you mean by "another fork in x86"? Or are you simply
referring to the fact that I've (re)defined a special instruction?
> What if you use the WRMSR instructions instead? Then you can define
> MSRs which have certain behavior when written to / read from. The whole
> point of MSRs is that they are model-specific, and that is the way to do
> this compatibly.
Hmm - a possibility.
I can look at changing to that once I've got the redir stuff working.
My initial concern was actually not to use / change any target visible
register, so that I can inject this anywhere as a debug hook - where
it's currently quite useful.
DF