[Qemu-devel] [PATCH qom-cpu v4 18/18] memory_mapping: Build only once

["Andreas Färber" <afaerber@suse.de>]

Move RAMBlock, RAMList and ram_list to exec/cpu-common.h since they do
not depend on CPUArchState. We can then use it together with qom/cpu.h
to replace cpu.h and exec/cpu-all.h includes, making it fully
target-independent.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 Makefile.objs                   |  1 +
 Makefile.target                 |  1 -
 include/exec/cpu-all.h          | 28 ----------------------------
 include/exec/cpu-common.h       | 33 +++++++++++++++++++++++++++++++++
 include/sysemu/memory_mapping.h |  1 +
 memory_mapping.c                |  4 ++--
 6 files changed, 37 insertions(+), 31 deletions(-)

diff --git a/Makefile.objs b/Makefile.objs
index 5b288ba..89f28a1 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -54,6 +54,7 @@ common-obj-y += migration.o migration-tcp.o
 common-obj-y += qemu-char.o #aio.o
 common-obj-y += block-migration.o
 common-obj-y += page_cache.o xbzrle.o
+common-obj-y += memory_mapping.o
 
 common-obj-$(CONFIG_POSIX) += migration-exec.o migration-unix.o migration-fd.o
 
diff --git a/Makefile.target b/Makefile.target
index b0be124..e73c68b 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -109,7 +109,6 @@ obj-y += hw/
 obj-$(CONFIG_FDT) += device_tree.o
 obj-$(CONFIG_KVM) += kvm-all.o
 obj-y += memory.o savevm.o cputlb.o
-obj-y += memory_mapping.o
 obj-y += dump.o
 LIBS+=$(libs_softmmu)
 
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index e9c3717..bd09cd1 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -22,7 +22,6 @@
 #include "qemu-common.h"
 #include "qemu/tls.h"
 #include "exec/cpu-common.h"
-#include "qemu/thread.h"
 
 /* some important defines:
  *
@@ -465,33 +464,6 @@ extern ram_addr_t ram_size;
 /* RAM is pre-allocated and passed into qemu_ram_alloc_from_ptr */
 #define RAM_PREALLOC_MASK   (1 << 0)
 
-typedef struct RAMBlock {
-    struct MemoryRegion *mr;
-    uint8_t *host;
-    ram_addr_t offset;
-    ram_addr_t length;
-    uint32_t flags;
-    char idstr[256];
-    /* Reads can take either the iothread or the ramlist lock.
-     * Writes must take both locks.
-     */
-    QTAILQ_ENTRY(RAMBlock) next;
-#if defined(__linux__) && !defined(TARGET_S390X)
-    int fd;
-#endif
-} RAMBlock;
-
-typedef struct RAMList {
-    QemuMutex mutex;
-    /* Protected by the iothread lock.  */
-    uint8_t *phys_dirty;
-    RAMBlock *mru_block;
-    /* Protected by the ramlist lock.  */
-    QTAILQ_HEAD(, RAMBlock) blocks;
-    uint32_t version;
-} RAMList;
-extern RAMList ram_list;
-
 extern const char *mem_path;
 extern int mem_prealloc;
 
diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h
index e061e21..0e5c63f 100644
--- a/include/exec/cpu-common.h
+++ b/include/exec/cpu-common.h
@@ -11,6 +11,7 @@
 
 #include "qemu/bswap.h"
 #include "qemu/queue.h"
+#include "qemu/thread.h"
 
 /**
  * CPUListState:
@@ -43,6 +44,38 @@ typedef uintptr_t ram_addr_t;
 #  define RAM_ADDR_FMT "%" PRIxPTR
 #endif
 
+#if !defined(CONFIG_USER_ONLY)
+
+typedef struct RAMBlock {
+    struct MemoryRegion *mr;
+    uint8_t *host;
+    ram_addr_t offset;
+    ram_addr_t length;
+    uint32_t flags;
+    char idstr[256];
+    /* Reads can take either the iothread or the ramlist lock.
+     * Writes must take both locks.
+     */
+    QTAILQ_ENTRY(RAMBlock) next;
+#if defined(__linux__) && !defined(TARGET_S390X)
+    int fd;
+#endif
+} RAMBlock;
+
+typedef struct RAMList {
+    QemuMutex mutex;
+    /* Protected by the iothread lock.  */
+    uint8_t *phys_dirty;
+    RAMBlock *mru_block;
+    /* Protected by the ramlist lock.  */
+    QTAILQ_HEAD(, RAMBlock) blocks;
+    uint32_t version;
+} RAMList;
+
+extern RAMList ram_list;
+
+#endif
+
 /* memory API */
 
 typedef void CPUWriteMemoryFunc(void *opaque, hwaddr addr, uint32_t value);
diff --git a/include/sysemu/memory_mapping.h b/include/sysemu/memory_mapping.h
index 1411cc7..161cfc3 100644
--- a/include/sysemu/memory_mapping.h
+++ b/include/sysemu/memory_mapping.h
@@ -16,6 +16,7 @@
 
 #include "qemu/queue.h"
 #include "qemu/typedefs.h"
+#include "qom/cpu.h"
 
 /* The physical and virtual address in the memory mapping are contiguous. */
 typedef struct MemoryMapping {
diff --git a/memory_mapping.c b/memory_mapping.c
index a19be54..446a927 100644
--- a/memory_mapping.c
+++ b/memory_mapping.c
@@ -11,8 +11,8 @@
  *
  */
 
-#include "cpu.h"
-#include "exec/cpu-all.h"
+#include "qemu-common.h"
+#include "exec/cpu-common.h"
 #include "sysemu/memory_mapping.h"
 
 static void memory_mapping_list_add_mapping_sorted(MemoryMappingList *list,
-- 
1.8.1.4