[PATCH 00/10] Enhance /dev/mem to allow read/write of arbitrary physical addresses

On 07/05/2011 10:49 AM, Matthew Garrett wrote:

On Sun, Jul 03, 2011 at 09:46:18PM +0200, Ingo Molnar wrote:

quoted

But those tables wont be in regular RAM (they will be in ROM or in 
RAM marked non-RAM in a special way in the e820 tables).

dmidecode certainly works on Fedora.

I've repeatedly wanted to dump EFI data that's flagged as E820_RESERVED 
above the top of RAM and had to hack the kernel every time. I'm entirely 
in favour of not having to hack the kernel every time.

That definitely needs to be fixed.

	-hpa

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