tree 64b2e760eb636b8ccc198344964358695c74b9d3
parent fcb119183c73bf0781009713f303e28b1fb13d3e
author Bjorn Helgaas <bjorn.helgaas@hp.com> 1292521131 -0700
committer Jesse Barnes <jbarnes@virtuousgeek.org> 1292608877 -0800

x86: avoid low BIOS area when allocating address space

This implements arch_remove_reservations() so allocate_resource() can
avoid any arch-specific reserved areas.  This currently just avoids the
BIOS area (the first 1MB), but could be used for E820 reserved areas if
that turns out to be necessary.

We previously avoided this area in pcibios_align_resource().  This patch
moves the test from that PCI-specific path to a generic path, so *all*
resource allocations will avoid this area.

Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>