Force Linux backend to allocate memory pages from lower address

diff --git a/linux_module/palacios-mm.c b/linux_module/palacios-mm.c
index 1d750db..a62b55a 100644 (file)
--- a/linux_module/palacios-mm.c
+++ b/linux_module/palacios-mm.c
@@ -103,7 +103,7 @@ uintptr_t alloc_palacios_pgs(u64 num_pages, u32 alignment) {
        struct page * pgs = NULL;
        int order = get_order(num_pages * PAGE_SIZE);
         
-       pgs = alloc_pages(GFP_KERNEL, order);
+       pgs = alloc_pages(GFP_DMA, order);
     
        WARN(!pgs, "Could not allocate pages\n");