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.
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
