Re: [tboot-devel] tboot "eats" 3GB of lowmem memory in a 16GB Intel DQ67SW, making Linux incapable of loading an initrd ramdisk as it only has 512MB lowmem to work in.

[Konrad R. W. <ko...@da...>]

On Wed, Jan 25, 2012 at 7:30 PM, Cihula, Joseph <jos...@in...> wrote:
> Try the attached patch (against the tip) and specify 'prot_mem=type1' on the tboot command line.

I tried against the tip and got:
 patch -p1 < ~/prot_mem.patch
patching file tboot/common/cmdline.c
Hunk #3 FAILED at 77.
Hunk #4 succeeded at 519 (offset -10 lines).
1 out of 4 hunks FAILED -- saving rejects to file tboot/common/cmdline.c.rej
patching file tboot/common/e820.c
patching file tboot/include/cmdline.h
Hunk #3 FAILED at 48.
1 out of 3 hunks FAILED -- saving rejects to file tboot/include/cmdline.h.rej
patching file tboot/include/e820.h

I fixed up the rejections and compiled it. It does boot, but ends up
http://darnok.org/tboot/tboot-patched-cant-bootup-anymore.jpg

So just in case it was something on my side, I applied
your patch to 1.7 - where  it applies cleanly.
With 1.7 + your patch, the E820 looks correct now:
http://darnok.org/tboot/tboot-patched-e820-ok.jpg

But sadly it hits the same exact problem the tip does:
http://darnok.org/tboot/tboot-patched-cant-bootup-anymore.jpg