Re: [PATCH] intel_txt: add s3 userspace memory integrity verification

[H. Peter Anvin]

On 12/04/2009 02:15 PM, Pavel Machek wrote:
>>>
>>> Are  you sure x86-64 kernel & modules is always below 4GB? I don't
>>> think so.

The x86-64 kernel is run where it is loaded by the boot loader.  For
most boot loaders, that will mean < 4 GB.  This is not the case for
modules, and they cannot and should not rely on modules inside
restricted zone.

This effectively becomes a constraint on whatever boot loader is used to
load the kernel for it to be compatible with tboot.

	-hpa
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/