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-rw-r--r--hw/i386/pc_piix.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index d357907b0b..dc09466b3e 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -24,6 +24,7 @@
 
 #include "qemu/osdep.h"
 
+#include "qemu/units.h"
 #include "hw/hw.h"
 #include "hw/loader.h"
 #include "hw/i386/pc.h"
@@ -131,7 +132,7 @@ static void pc_init1(MachineState *machine,
                 if (lowmem > 0xc0000000) {
                     lowmem = 0xc0000000;
                 }
-                if (lowmem & ((1ULL << 30) - 1)) {
+                if (lowmem & (1 * GiB - 1)) {
                     warn_report("Large machine and max_ram_below_4g "
                                 "(%" PRIu64 ") not a multiple of 1G; "
                                 "possible bad performance.",