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Date:	Tue, 14 Nov 2006 16:30:03 +0000
From:	Pavel Machek <>
To:	Vivek Goyal <>
Cc:	linux kernel mailing list <>,
	Reloc Kernel List <>,,,,,,,
Subject: Re: [RFC] [PATCH 10/16] x86_64: 64bit PIC ACPI wakeup


> - Killed lots of dead code
> - Improve the cpu sanity checks to verify long mode
>   is enabled when we wake up.
> - Removed the need for modifying any existing kernel page table.
> - Moved wakeup_level4_pgt into the wakeup routine so we can
>   run the kernel above 4G.
> - Increased the size of the wakeup routine to 8K.
> - Renamed the variables to use the 64bit register names.
> - Lots of misc cleanups to match trampoline.S
> I don't have a configuration I can test this but it compiles cleanly

Ugh, now that's a big patch.. and untested, too :-(.

Why is PGE no longer required, for example?

Can we get it piece-by-piece?

> Vivek has tested this patch for suspend to memory and it works fine.

Ok, so it was tested on one config. Given that the patch deals with
detecting CPU oddities... :-(

Thanks for all the (sleeping) penguins.
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