Use GFP_DMA32 for small page allocations

diff --git a/linux_module/mm.c b/linux_module/mm.c
index e4852c3..c23cb2f 100644 (file)
--- a/linux_module/mm.c
+++ b/linux_module/mm.c
@@ -91,6 +91,8 @@ static uintptr_t alloc_contig_pgs(u64 num_pages, u32 alignment) {
        }
     }
 
+    /* printk("PALACIOS BAD: LARGE PAGE ALLOCATION FAILED\n"); */
+
     return 0;
 }
 
@@ -103,9 +105,11 @@ 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_DMA, order);
+       pgs = alloc_pages(GFP_DMA32, order);
     
        WARN(!pgs, "Could not allocate pages\n");
+ 
+        /* if (!pgs) { printk("PALACIOS BAD: SMALL PAGE ALLOCATION FAILED\n"); A */}
        
        /* printk("%llu pages (order=%d) aquired from alloc_pages\n", 
               num_pages, order); */