Re: [PATCH v4 03/12] x86/mtrr: support setting MTRR state for software defined MTRRs

From: Borislav Petkov
Date: Mon Mar 20 2023 - 18:43:10 EST


On Mon, Mar 20, 2023 at 02:47:30PM +0100, Juergen Gross wrote:
> > Since this code covers TDX guest too, I think eventually it makes sense for TDX
> > guest to use this function too (to avoid #VE IIUC). If want to do that, then I
> > think TDX guest should have the same mutual understanding with *ALL* hypervisor,
> > as I am not sure what's the point of making the TDX guest's MTRR behaviour
> > depending on specific hypervisor.
>
> This series tries to fix the current fallout.

We can relax the check so that it runs on TDX too. Along with a comment
above it why it needs to run on TDX.

--
Regards/Gruss,
Boris.

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