diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
index 33b46cb50be7..d013c412d611 100644
--- a/hw/ppc/mac_newworld.c
+++ b/hw/ppc/mac_newworld.c
@@ -124,11 +124,6 @@ static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
 }
 
-static hwaddr round_page(hwaddr addr)
-{
-    return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
-}
-
 static void ppc_core99_reset(void *opaque)
 {
     PowerPCCPU *cpu = opaque;
@@ -252,7 +247,7 @@ static void ppc_core99_init(MachineState *machine)
         }
         /* load initrd */
         if (initrd_filename) {
-            initrd_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
+            initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
             initrd_size = load_image_targphys(initrd_filename, initrd_base,
                                               ram_size - initrd_base);
             if (initrd_size < 0) {
@@ -260,11 +255,11 @@ static void ppc_core99_init(MachineState *machine)
                              initrd_filename);
                 exit(1);
             }
-            cmdline_base = round_page(initrd_base + initrd_size);
+            cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
         } else {
             initrd_base = 0;
             initrd_size = 0;
-            cmdline_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
+            cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
         }
         ppc_boot_device = 'm';
     } else {
diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
index 193b9047d94d..61838c3e6f5e 100644
--- a/hw/ppc/mac_oldworld.c
+++ b/hw/ppc/mac_oldworld.c
@@ -66,11 +66,6 @@ static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
 }
 
-static hwaddr round_page(hwaddr addr)
-{
-    return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
-}
-
 static void ppc_heathrow_reset(void *opaque)
 {
     PowerPCCPU *cpu = opaque;
@@ -187,7 +182,7 @@ static void ppc_heathrow_init(MachineState *machine)
         }
         /* load initrd */
         if (initrd_filename) {
-            initrd_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
+            initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
             initrd_size = load_image_targphys(initrd_filename, initrd_base,
                                               ram_size - initrd_base);
             if (initrd_size < 0) {
@@ -195,11 +190,11 @@ static void ppc_heathrow_init(MachineState *machine)
                              initrd_filename);
                 exit(1);
             }
-            cmdline_base = round_page(initrd_base + initrd_size);
+            cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
         } else {
             initrd_base = 0;
             initrd_size = 0;
-            cmdline_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
+            cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
         }
         ppc_boot_device = 'm';
     } else {