Re: [RFC][PATCH 3/3] TXT: Intel(R) TXT and tboot kernel support

From: Chris Wright
Date: Thu Oct 09 2008 - 17:35:52 EST


* Cihula, Joseph (joseph.cihula@xxxxxxxxx) wrote:
> > From: Chris Wright [mailto:chrisw@xxxxxxxxxxxx]
> > I asked earlier, I didn't understand why it needs to be 2 fields, since
> > it's u32 in both cases and can't both be used at once.
>
> We will look at seeing if we can make a single entry point that detects
> if it was called by 64b code, disable IA32e mode, and then jumps to the
> 32b code.

Yeah, that's exactly what I was thinking. I assumed I missed a piece...

> We did it this way initially because it was easier code to
> keep them separate and has been working for some time. We'll also have
> to adjust Xen if/when we do this.

...which is just this ease of implementation, thanks.

thanks,
-chris
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