3.16.7-ckt21 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Malcolm Crossley <[email protected]> commit 64c98e7f49100b637cd20a6c63508caed6bbba7a upstream. Sanitizing the e820 map may produce extra E820 entries which would result in the topmost E820 entries being removed. The removed entries would typically include the top E820 usable RAM region and thus result in the domain having signicantly less RAM available to it. Fix by allowing sanitize_e820_map to use the full size of the allocated E820 array. Signed-off-by: Malcolm Crossley <[email protected]> Reviewed-by: Boris Ostrovsky <[email protected]> Signed-off-by: David Vrabel <[email protected]> [ luis: backported to 3.16: - use 'map' instead of 'xen_e820_map_entries' ] Signed-off-by: Luis Henriques <[email protected]> --- arch/x86/xen/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 2e555163c2fe..dca94c650d6a 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -385,7 +385,7 @@ char * __init xen_memory_setup(void) xen_ignore_unusable(map, memmap.nr_entries); /* Make sure the Xen-supplied memory map is well-ordered. */ - sanitize_e820_map(map, memmap.nr_entries, &memmap.nr_entries); + sanitize_e820_map(map, ARRAY_SIZE(map), &memmap.nr_entries); max_pages = xen_get_max_pages(); if (max_pages > max_pfn) -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
