Re: Use PCI ROMs from EFI boot services

[H. Peter Anvin]

On 12/05/2012 05:13 PM, Matthew Garrett wrote:
> "H. Peter Anvin" <hpa@xxxxxxxxx> wrote:
>
> > And that presumably would be something that cannot be exposed to root?
> > If so we may want to use one of the bits in the setup_data type field
> > as
> > a security flag, perhaps...
>
> Yeah, it needs to be hidden from root - but ideally we'd be passing it to the second kernel if we kexec. Alternative would be for it to be capability bounded to a trusted signed kexec binary if we implement Vivek's IMA-based approach.

Either way a security flag in the type field makes sense.

	-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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