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[Qemu-devel] [RFC v4 04/58] Internal interfaces for memory API
From: |
Avi Kivity |
Subject: |
[Qemu-devel] [RFC v4 04/58] Internal interfaces for memory API |
Date: |
Sun, 17 Jul 2011 14:13:31 +0300 |
get_system_memory() provides the root of the memory hierarchy.
This interface is intended to be private between memory.c and exec.c.
If this file is included elsewhere, it should be regarded as a bug (or
TODO item). However, it will be temporarily needed for the conversion
to hierarchical memory routing.
Signed-off-by: Avi Kivity <address@hidden>
---
exec-memory.h | 23 +++++++++++++++++++++++
memory.c | 7 +++++++
2 files changed, 30 insertions(+), 0 deletions(-)
create mode 100644 exec-memory.h
diff --git a/exec-memory.h b/exec-memory.h
new file mode 100644
index 0000000..7eb9085
--- /dev/null
+++ b/exec-memory.h
@@ -0,0 +1,23 @@
+#ifndef EXEC_MEMORY_H
+#define EXEC_MEMORY_H
+
+/*
+ * Internal interfaces between memory.c/exec.c/vl.c. Do not #include unless
+ * you're one of them.
+ */
+
+#include "memory.h"
+
+#ifndef CONFIG_USER_ONLY
+
+/* Get the root memory region. This interface should only be used temporarily
+ * until a proper bus interface is available.
+ */
+MemoryRegion *get_system_memory(void);
+
+/* Set the root memory region. This region is the system memory map. */
+void set_system_memory_map(MemoryRegion *mr);
+
+#endif
+
+#endif
diff --git a/memory.c b/memory.c
index 339bea3..48470d2 100644
--- a/memory.c
+++ b/memory.c
@@ -12,6 +12,7 @@
*/
#include "memory.h"
+#include "exec-memory.h"
#include <assert.h>
typedef struct AddrRange AddrRange;
@@ -698,3 +699,9 @@ void memory_region_del_subregion(MemoryRegion *mr,
QTAILQ_REMOVE(&mr->subregions, subregion, subregions_link);
memory_region_update_topology();
}
+
+void set_system_memory_map(MemoryRegion *mr)
+{
+ root_memory_region = mr;
+ memory_region_update_topology();
+}
--
1.7.5.3
- [Qemu-devel] [RFC v4 00/58] Memory API, Avi Kivity, 2011/07/17
- [Qemu-devel] [RFC v4 04/58] Internal interfaces for memory API,
Avi Kivity <=
- [Qemu-devel] [RFC v4 13/58] ioport: register ranges by byte aligned addresses always, Avi Kivity, 2011/07/17
- [Qemu-devel] [RFC v4 25/58] cirrus: simplify bitblt BAR access functions, Avi Kivity, 2011/07/17
- [Qemu-devel] [RFC v4 02/58] memory: implement dirty tracking, Avi Kivity, 2011/07/17
- [Qemu-devel] [RFC v4 30/58] exec.c: fix initialization of system I/O memory region, Avi Kivity, 2011/07/17
- [Qemu-devel] [RFC v4 03/58] memory: merge adjacent segments of a single memory region, Avi Kivity, 2011/07/17
- [Qemu-devel] [RFC v4 07/58] memory: late initialization of ram_addr, Avi Kivity, 2011/07/17
- [Qemu-devel] [RFC v4 37/58] es1370: convert to memory API, Avi Kivity, 2011/07/17
- [Qemu-devel] [RFC v4 35/58] e1000: convert to memory API, Avi Kivity, 2011/07/17
- [Qemu-devel] [RFC v4 05/58] memory: abstract address space operations, Avi Kivity, 2011/07/17
- [Qemu-devel] [RFC v4 18/58] pci: add MemoryRegion based BAR management API, Avi Kivity, 2011/07/17