hw/pci-host: Use the IEC binary prefix definitions

IEC binary prefixes ease code review: the unit is explicit.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200601142930.29408-6-f4bug@amsat.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

hw/pci-host/i440fx.c

@@ -23,6 +23,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu/units.h"
 #include "qemu/range.h"
 #include "hw/i386/pc.h"
 #include "hw/pci/pci.h"
@@ -301,7 +302,7 @@ PCIBus *i440fx_init(const char *host_type, const char *pci_type,
     memory_region_set_enabled(&f->smram_region, true);
 
     /* smram, as seen by SMM CPUs */
-    memory_region_init(&f->smram, OBJECT(d), "smram", 1ull << 32);
+    memory_region_init(&f->smram, OBJECT(d), "smram", 4 * GiB);
     memory_region_set_enabled(&f->smram, true);
     memory_region_init_alias(&f->low_smram, OBJECT(d), "smram-low",
                              f->ram_memory, 0xa0000, 0x20000);

hw/pci-host/q35.c

@@ -589,7 +589,7 @@ static void mch_realize(PCIDevice *d, Error **errp)
     memory_region_set_enabled(&mch->open_high_smram, false);
 
     /* smram, as seen by SMM CPUs */
-    memory_region_init(&mch->smram, OBJECT(mch), "smram", 1ull << 32);
+    memory_region_init(&mch->smram, OBJECT(mch), "smram", 4 * GiB);
     memory_region_set_enabled(&mch->smram, true);
     memory_region_init_alias(&mch->low_smram, OBJECT(mch), "smram-low",
                              mch->ram_memory, MCH_HOST_BRIDGE_SMRAM_C_BASE,

hw/pci-host/versatile.c

@@ -8,6 +8,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu/units.h"
 #include "hw/sysbus.h"
 #include "migration/vmstate.h"
 #include "hw/irq.h"
@@ -399,8 +400,8 @@ static void pci_vpb_realize(DeviceState *dev, Error **errp)
     pci_map_irq_fn mapfn;
     int i;
 
-    memory_region_init(&s->pci_io_space, OBJECT(s), "pci_io", 1ULL << 32);
-    memory_region_init(&s->pci_mem_space, OBJECT(s), "pci_mem", 1ULL << 32);
+    memory_region_init(&s->pci_io_space, OBJECT(s), "pci_io", 4 * GiB);
+    memory_region_init(&s->pci_mem_space, OBJECT(s), "pci_mem", 4 * GiB);
 
     pci_root_bus_new_inplace(&s->pci_bus, sizeof(s->pci_bus), dev, "pci",
                              &s->pci_mem_space, &s->pci_io_space,