Re: [PATCH 10/28] i386: map enough initial memory to create lowmemmappings
From: H. Peter Anvin
Date: Sat Apr 14 2007 - 18:05:49 EST
Jeremy Fitzhardinge wrote:
-
+LOW_PAGES = 1<<(32-PAGE_SHIFT_asm)
+
Again, for debugging... it would be interesting to replace this with:
LOW_PAGES = (0x100000000-__PAGE_OFFSET) >> PAGE_SHIFT_asm
... to smoke out further problems; this will take the strict definition
of "lowmem" (modulo the pci region, which someone unwisely made
dynamically adjustable... which would have been fine if initramfs could
live in highmem, which it can't yet.)
-hpa
-
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