Commit 9a17ad7f authored Jan 12, 2015 by Juergen Gross Committed by David Vrabel Jan 12, 2015

xen: check for zero sized area when invalidating memory



With the introduction of the linear mapped p2m list setting memory
areas to "invalid" had to be delayed. When doing the invalidation
make sure no zero sized areas are processed.

Signed-off-by: Juegren Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>

parent e86f9496

arch/x86/xen/setup.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -160,6 +160,8 @@ void __init xen_inv_extra_mem(void)
		int i;

		for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) {
		if (!xen_extra_mem[i].size)
		continue;
		pfn_s = PFN_DOWN(xen_extra_mem[i].start);
		pfn_e = PFN_UP(xen_extra_mem[i].start + xen_extra_mem[i].size);
		for (pfn = pfn_s; pfn < pfn_e; pfn++)

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