From 3791db455b1ec9ced01ada8361c3cb4191963313 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Mon, 12 Jan 2015 06:05:10 +0100 Subject: [PATCH] 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 Signed-off-by: David Vrabel --- arch/x86/xen/setup.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 410210f279bf0..865e56cea7a0a 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -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++) -- 2.39.5