From: H. Peter Anvin <hpa@zytor.com>
Date: Mon, 11 May 2009 22:56:08 +0000 (-0700)
Subject: x86, boot: make kernel_alignment adjustable; new bzImage fields
X-Git-Tag: v2.6.31-rc1~422^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=37ba7ab5e33cebc25c68fffe33e9f21e7c2014e8;p=pandora-kernel.git

x86, boot: make kernel_alignment adjustable; new bzImage fields

Make the kernel_alignment field adjustable; this allows us to set it
to a large value (intended to be 16 MB to avoid ZONE_DMA contention,
memory holes and other weirdness) while a smart bootloader can still
force a loading at a lesser alignment if absolutely necessary.

Also export pref_address (preferred loading address, corresponding to
the link-time address) and init_size, the total amount of linear
memory the kernel will require during initialization.

[ Impact: allows better kernel placement, gives bootloader more info ]

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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