fsl_imx*: Migrate ROM contents

The fsl-imx* boards accidentally forgot to register the ROM memory
regions for migration.  This used to require a manual step of calling
vmstate_register_ram(), but following commits
1cfe48c1..b08199c6 we can use memory_region_init_rom() to
have it do the migration for us.

This is a migration break, but the migration code currently does not
handle the case of having two RAM regions which were not registered
for migration, and so prior to this commit a migration load would
always fail with:
  "qemu-system-arm: Length mismatch: 0x4000 in != 0x18000: Invalid argument"

NB: migration appears at this point to be broken for this board
anyway -- it succeeds but the destination hangs; probably some
device in the system does not yet support migration.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Message-id: 1500309775-18361-1-git-send-email-peter.maydell@linaro.org

hw/arm/fsl-imx25.c

@@ -249,7 +249,7 @@ static void fsl_imx25_realize(DeviceState *dev, Error **errp)
     }
 
     /* initialize 2 x 16 KB ROM */
-    memory_region_init_rom_nomigrate(&s->rom[0], NULL,
+    memory_region_init_rom(&s->rom[0], NULL,
                            "imx25.rom0", FSL_IMX25_ROM0_SIZE, &err);
     if (err) {
         error_propagate(errp, err);
@@ -257,7 +257,7 @@ static void fsl_imx25_realize(DeviceState *dev, Error **errp)
     }
     memory_region_add_subregion(get_system_memory(), FSL_IMX25_ROM0_ADDR,
                                 &s->rom[0]);
-    memory_region_init_rom_nomigrate(&s->rom[1], NULL,
+    memory_region_init_rom(&s->rom[1], NULL,
                            "imx25.rom1", FSL_IMX25_ROM1_SIZE, &err);
     if (err) {
         error_propagate(errp, err);

hw/arm/fsl-imx31.c

@@ -219,7 +219,7 @@ static void fsl_imx31_realize(DeviceState *dev, Error **errp)
     }
 
     /* On a real system, the first 16k is a `secure boot rom' */
-    memory_region_init_rom_nomigrate(&s->secure_rom, NULL, "imx31.secure_rom",
+    memory_region_init_rom(&s->secure_rom, NULL, "imx31.secure_rom",
                            FSL_IMX31_SECURE_ROM_SIZE, &err);
     if (err) {
         error_propagate(errp, err);
@@ -229,7 +229,7 @@ static void fsl_imx31_realize(DeviceState *dev, Error **errp)
                                 &s->secure_rom);
 
     /* There is also a 16k ROM */
-    memory_region_init_rom_nomigrate(&s->rom, NULL, "imx31.rom",
+    memory_region_init_rom(&s->rom, NULL, "imx31.rom",
                            FSL_IMX31_ROM_SIZE, &err);
     if (err) {
         error_propagate(errp, err);

hw/arm/fsl-imx6.c

@@ -399,7 +399,7 @@ static void fsl_imx6_realize(DeviceState *dev, Error **errp)
                                         FSL_IMX6_ENET_MAC_1588_IRQ));
 
     /* ROM memory */
-    memory_region_init_rom_nomigrate(&s->rom, NULL, "imx6.rom",
+    memory_region_init_rom(&s->rom, NULL, "imx6.rom",
                            FSL_IMX6_ROM_SIZE, &err);
     if (err) {
         error_propagate(errp, err);
@@ -409,7 +409,7 @@ static void fsl_imx6_realize(DeviceState *dev, Error **errp)
                                 &s->rom);
 
     /* CAAM memory */
-    memory_region_init_rom_nomigrate(&s->caam, NULL, "imx6.caam",
+    memory_region_init_rom(&s->caam, NULL, "imx6.caam",
                            FSL_IMX6_CAAM_MEM_SIZE, &err);
     if (err) {
         error_propagate(errp, err);