From: BALATON Zoltan <balaton@eik.bme.hu>
Date: Sat, 7 Mar 2026 23:06:01 +0000 (+0100)
Subject: sun4m,sun4u,tcx: Do not use memory_region_init_ram_nomigrate()
X-Git-Tag: v11.0.0-rc0~22^2~15
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=945f3573dd208f2993aa6378b30202cef0dbca8d;p=thirdparty%2Fqemu.git

sun4m,sun4u,tcx: Do not use memory_region_init_ram_nomigrate()

Convert to use memory_region_init_{ram,rom} instead. This breaks
migration but these machines have no migration compatibility guarantee
and this removes most remaining usages of this nomigrate variant.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Link: https://lore.kernel.org/r/1d0f04534af14598f5c6b8c6922e3f10d8bb18cf.1772924151.git.balaton@eik.bme.hu
Signed-off-by: Peter Xu <peterx@redhat.com>
---

diff --git a/hw/display/tcx.c b/hw/display/tcx.c
index 16114b9bb8b..c8a4ac21caf 100644
--- a/hw/display/tcx.c
+++ b/hw/display/tcx.c
@@ -815,9 +815,8 @@ static void tcx_realizefn(DeviceState *dev, Error **errp)
     uint8_t *vram_base;
     char *fcode_filename;
 
-    memory_region_init_ram_nomigrate(&s->vram_mem, OBJECT(s), "tcx.vram",
+    memory_region_init_ram(&s->vram_mem, OBJECT(s), "tcx.vram",
                            s->vram_size * (1 + 4 + 4), &error_fatal);
-    vmstate_register_ram_global(&s->vram_mem);
     memory_region_set_log(&s->vram_mem, true, DIRTY_MEMORY_VGA);
     vram_base = memory_region_get_ram_ptr(&s->vram_mem);
 
diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c
index a17bdb36927..47853e3f760 100644
--- a/hw/sparc/sun4m.c
+++ b/hw/sparc/sun4m.c
@@ -587,13 +587,10 @@ static void idreg_realize(DeviceState *ds, Error **errp)
     IDRegState *s = MACIO_ID_REGISTER(ds);
     SysBusDevice *dev = SYS_BUS_DEVICE(ds);
 
-    if (!memory_region_init_ram_nomigrate(&s->mem, OBJECT(ds), "sun4m.idreg",
-                                          sizeof(idreg_data), errp)) {
+    if (!memory_region_init_rom(&s->mem, OBJECT(ds), "sun4m.idreg",
+                                sizeof(idreg_data), errp)) {
         return;
     }
-
-    vmstate_register_ram_global(&s->mem);
-    memory_region_set_readonly(&s->mem, true);
     sysbus_init_mmio(dev, &s->mem);
 }
 
@@ -638,12 +635,9 @@ static void afx_realize(DeviceState *ds, Error **errp)
     AFXState *s = TCX_AFX(ds);
     SysBusDevice *dev = SYS_BUS_DEVICE(ds);
 
-    if (!memory_region_init_ram_nomigrate(&s->mem, OBJECT(ds), "sun4m.afx",
-                                          4, errp)) {
+    if (!memory_region_init_ram(&s->mem, OBJECT(ds), "sun4m.afx", 4, errp)) {
         return;
     }
-
-    vmstate_register_ram_global(&s->mem);
     sysbus_init_mmio(dev, &s->mem);
 }
 
@@ -719,13 +713,10 @@ static void prom_realize(DeviceState *ds, Error **errp)
     PROMState *s = OPENPROM(ds);
     SysBusDevice *dev = SYS_BUS_DEVICE(ds);
 
-    if (!memory_region_init_ram_nomigrate(&s->prom, OBJECT(ds), "sun4m.prom",
-                                          PROM_SIZE_MAX, errp)) {
+    if (!memory_region_init_rom(&s->prom, OBJECT(ds), "sun4m.prom",
+                                PROM_SIZE_MAX, errp)) {
         return;
     }
-
-    vmstate_register_ram_global(&s->prom);
-    memory_region_set_readonly(&s->prom, true);
     sysbus_init_mmio(dev, &s->prom);
 }
 
diff --git a/hw/sparc64/sun4u.c b/hw/sparc64/sun4u.c
index b8bda1eb816..2e41785b783 100644
--- a/hw/sparc64/sun4u.c
+++ b/hw/sparc64/sun4u.c
@@ -455,13 +455,10 @@ static void prom_realize(DeviceState *ds, Error **errp)
     PROMState *s = OPENPROM(ds);
     SysBusDevice *dev = SYS_BUS_DEVICE(ds);
 
-    if (!memory_region_init_ram_nomigrate(&s->prom, OBJECT(ds), "sun4u.prom",
-                                          PROM_SIZE_MAX, errp)) {
+    if (!memory_region_init_rom(&s->prom, OBJECT(ds), "sun4u.prom",
+                                PROM_SIZE_MAX, errp)) {
         return;
     }
-
-    vmstate_register_ram_global(&s->prom);
-    memory_region_set_readonly(&s->prom, true);
     sysbus_init_mmio(dev, &s->prom);
 }
 
@@ -498,9 +495,8 @@ static void ram_realize(DeviceState *dev, Error **errp)
     RamDevice *d = SUN4U_RAM(dev);
     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
-    memory_region_init_ram_nomigrate(&d->ram, OBJECT(d), "sun4u.ram", d->size,
+    memory_region_init_ram(&d->ram, OBJECT(d), "sun4u.ram", d->size,
                            &error_fatal);
-    vmstate_register_ram_global(&d->ram);
     sysbus_init_mmio(sbd, &d->ram);
 }