Commit 15bfc094 authored Apr 12, 2011 by Konrad Rzeszutek Wilk

xen/setup: Ignore E820_UNUSABLE when setting 1-1 mappings.



When we parse the raw E820, the Xen hypervisor can set "E820_RAM"
to "E820_UNUSABLE" if the mem=X argument is used. As such we
should _not_ consider the E820_UNUSABLE as an 1-1 identity
mapping, but instead use the same case as for E820_RAM.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

parent 693d92a1

arch/x86/xen/setup.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -166,7 +166,7 @@ static unsigned long __init xen_set_identity(const struct e820entry *list,
		if (last > end)
		continue;

		if (entry->type == E820_RAM) {
		if ((entry->type == E820_RAM) \|\| (entry->type == E820_UNUSABLE)) {
		if (start > start_pci)
		identity += set_phys_range_identity(
		PFN_UP(start_pci), PFN_DOWN(start));