[PULL 22/33] softmmu/memory: Pass ram_flags to memory_region_init_ram_shared_nomigrate()

[Paolo Bonzini <pbonzini@redhat.com>]

From: David Hildenbrand <david@redhat.com>

Let's forward ram_flags instead, renaming
memory_region_init_ram_shared_nomigrate() into
memory_region_init_ram_flags_nomigrate().

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com> for memory backend and machine core
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210510114328.21835-6-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 backends/hostmem-ram.c                        |  6 +++--
 hw/m68k/next-cube.c                           |  4 ++--
 include/exec/memory.h                         | 24 +++++++++----------
 .../memory-region-housekeeping.cocci          |  8 +++----
 softmmu/memory.c                              | 18 +++++++-------
 5 files changed, 31 insertions(+), 29 deletions(-)

diff --git a/backends/hostmem-ram.c b/backends/hostmem-ram.c
index 5cc53e76c9..741e701062 100644
--- a/backends/hostmem-ram.c
+++ b/backends/hostmem-ram.c
@@ -19,6 +19,7 @@
 static void
 ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
 {
+    uint32_t ram_flags;
     char *name;
 
     if (!backend->size) {
@@ -27,8 +28,9 @@ ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
     }
 
     name = host_memory_backend_get_name(backend);
-    memory_region_init_ram_shared_nomigrate(&backend->mr, OBJECT(backend), name,
-                           backend->size, backend->share, errp);
+    ram_flags = backend->share ? RAM_SHARED : 0;
+    memory_region_init_ram_flags_nomigrate(&backend->mr, OBJECT(backend), name,
+                                           backend->size, ram_flags, errp);
     g_free(name);
 }
 
diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c
index de951ffe5d..e0d4a94f9d 100644
--- a/hw/m68k/next-cube.c
+++ b/hw/m68k/next-cube.c
@@ -984,8 +984,8 @@ static void next_cube_init(MachineState *machine)
     sysbus_mmio_map(SYS_BUS_DEVICE(pcdev), 1, 0x02100000);
 
     /* BMAP memory */
-    memory_region_init_ram_shared_nomigrate(bmapm1, NULL, "next.bmapmem", 64,
-                                            true, &error_fatal);
+    memory_region_init_ram_flags_nomigrate(bmapm1, NULL, "next.bmapmem", 64,
+                                           RAM_SHARED, &error_fatal);
     memory_region_add_subregion(sysmem, 0x020c0000, bmapm1);
     /* The Rev_2.5_v66.bin firmware accesses it at 0x820c0020, too */
     memory_region_init_alias(bmapm2, NULL, "next.bmapmem2", bmapm1, 0x0, 64);
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 8aa69a10d7..b1f8fa1df0 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -940,27 +940,27 @@ void memory_region_init_ram_nomigrate(MemoryRegion *mr,
                                       Error **errp);
 
 /**
- * memory_region_init_ram_shared_nomigrate:  Initialize RAM memory region.
- *                                           Accesses into the region will
- *                                           modify memory directly.
+ * memory_region_init_ram_flags_nomigrate:  Initialize RAM memory region.
+ *                                          Accesses into the region will
+ *                                          modify memory directly.
  *
  * @mr: the #MemoryRegion to be initialized.
  * @owner: the object that tracks the region's reference count
  * @name: Region name, becomes part of RAMBlock name used in migration stream
  *        must be unique within any device
  * @size: size of the region.
- * @share: allow remapping RAM to different addresses
+ * @ram_flags: RamBlock flags. Supported flags: RAM_SHARED.
  * @errp: pointer to Error*, to store an error if it happens.
  *
- * Note that this function is similar to memory_region_init_ram_nomigrate.
- * The only difference is part of the RAM region can be remapped.
+ * Note that this function does not do anything to cause the data in the
+ * RAM memory region to be migrated; that is the responsibility of the caller.
  */
-void memory_region_init_ram_shared_nomigrate(MemoryRegion *mr,
-                                             Object *owner,
-                                             const char *name,
-                                             uint64_t size,
-                                             bool share,
-                                             Error **errp);
+void memory_region_init_ram_flags_nomigrate(MemoryRegion *mr,
+                                            Object *owner,
+                                            const char *name,
+                                            uint64_t size,
+                                            uint32_t ram_flags,
+                                            Error **errp);
 
 /**
  * memory_region_init_resizeable_ram:  Initialize memory region with resizeable
diff --git a/scripts/coccinelle/memory-region-housekeeping.cocci b/scripts/coccinelle/memory-region-housekeeping.cocci
index c768d8140a..29651ebde9 100644
--- a/scripts/coccinelle/memory-region-housekeeping.cocci
+++ b/scripts/coccinelle/memory-region-housekeeping.cocci
@@ -127,8 +127,8 @@ static void device_fn(DeviceState *dev, ...)
 - memory_region_init_rom(E1, NULL, E2, E3, E4);
 + memory_region_init_rom(E1, obj, E2, E3, E4);
 |
-- memory_region_init_ram_shared_nomigrate(E1, NULL, E2, E3, E4, E5);
-+ memory_region_init_ram_shared_nomigrate(E1, obj, E2, E3, E4, E5);
+- memory_region_init_ram_flags_nomigrate(E1, NULL, E2, E3, E4, E5);
++ memory_region_init_ram_flags_nomigrate(E1, obj, E2, E3, E4, E5);
 )
   ...+>
 }
@@ -152,8 +152,8 @@ static void device_fn(DeviceState *dev, ...)
 - memory_region_init_rom(E1, NULL, E2, E3, E4);
 + memory_region_init_rom(E1, OBJECT(dev), E2, E3, E4);
 |
-- memory_region_init_ram_shared_nomigrate(E1, NULL, E2, E3, E4, E5);
-+ memory_region_init_ram_shared_nomigrate(E1, OBJECT(dev), E2, E3, E4, E5);
+- memory_region_init_ram_flags_nomigrate(E1, NULL, E2, E3, E4, E5);
++ memory_region_init_ram_flags_nomigrate(E1, OBJECT(dev), E2, E3, E4, E5);
 )
   ...+>
 }
diff --git a/softmmu/memory.c b/softmmu/memory.c
index f777504ac5..5c0ff76c06 100644
--- a/softmmu/memory.c
+++ b/softmmu/memory.c
@@ -1531,22 +1531,22 @@ void memory_region_init_ram_nomigrate(MemoryRegion *mr,
                                       uint64_t size,
                                       Error **errp)
 {
-    memory_region_init_ram_shared_nomigrate(mr, owner, name, size, false, errp);
+    memory_region_init_ram_flags_nomigrate(mr, owner, name, size, 0, errp);
 }
 
-void memory_region_init_ram_shared_nomigrate(MemoryRegion *mr,
-                                             Object *owner,
-                                             const char *name,
-                                             uint64_t size,
-                                             bool share,
-                                             Error **errp)
+void memory_region_init_ram_flags_nomigrate(MemoryRegion *mr,
+                                            Object *owner,
+                                            const char *name,
+                                            uint64_t size,
+                                            uint32_t ram_flags,
+                                            Error **errp)
 {
     Error *err = NULL;
     memory_region_init(mr, owner, name, size);
     mr->ram = true;
     mr->terminates = true;
     mr->destructor = memory_region_destructor_ram;
-    mr->ram_block = qemu_ram_alloc(size, share, mr, &err);
+    mr->ram_block = qemu_ram_alloc(size, ram_flags & RAM_SHARED, mr, &err);
     if (err) {
         mr->size = int128_zero();
         object_unparent(OBJECT(mr));
@@ -1682,7 +1682,7 @@ void memory_region_init_rom_nomigrate(MemoryRegion *mr,
                                       uint64_t size,
                                       Error **errp)
 {
-    memory_region_init_ram_shared_nomigrate(mr, owner, name, size, false, errp);
+    memory_region_init_ram_flags_nomigrate(mr, owner, name, size, 0, errp);
     mr->readonly = true;
 }
 
-- 
2.31.1