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[Qemu-devel] [PATCH v2 05/23] Internal interfaces for memory API
From: |
Avi Kivity |
Subject: |
[Qemu-devel] [PATCH v2 05/23] Internal interfaces for memory API |
Date: |
Tue, 26 Jul 2011 14:26:04 +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.
Reviewed-by: Anthony Liguori <address@hidden>
Signed-off-by: Avi Kivity <address@hidden>
---
exec-memory.h | 36 ++++++++++++++++++++++++++++++++++++
memory.c | 7 +++++++
2 files changed, 43 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..aea1b45
--- /dev/null
+++ b/exec-memory.h
@@ -0,0 +1,36 @@
+/*
+ * Internal memory managment interfaces
+ *
+ * Copyright 2011 Red Hat, Inc. and/or its affiliates
+ *
+ * Authors:
+ * Avi Kivity <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#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 121f9e1..fcb612e 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;
@@ -703,3 +704,9 @@ 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] [PATCH v2 03/23] memory: implement dirty tracking, (continued)
- [Qemu-devel] [PATCH v2 03/23] memory: implement dirty tracking, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 10/23] memory: add backward compatibility for old portio registration, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 17/23] pc: grab system_memory, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 08/23] memory: late initialization of ram_addr, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 11/23] memory: add backward compatibility for old mmio registration, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 13/23] memory: separate building the final memory map into two steps, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 06/23] memory: abstract address space operations, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 14/23] memory: transaction API, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 09/23] memory: I/O address space support, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 15/23] exec.c: initialize memory map, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 05/23] Internal interfaces for memory API,
Avi Kivity <=
- [Qemu-devel] [PATCH v2 19/23] pc: move global memory map out of pc_init1() and into its callers, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 02/23] Hierarchical memory region API, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 07/23] memory: rename MemoryRegion::has_ram_addr to ::terminates, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 22/23] sysbus: add MemoryRegion based memory management API, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 18/23] pc: convert pc_memory_init() to memory API, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 23/23] usb-ohci: convert to MemoryRegion, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 20/23] pci: pass address space to pci bus when created, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 16/23] ioport: register ranges by byte aligned addresses always, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 21/23] pci: add MemoryRegion based BAR management API, Avi Kivity, 2011/07/26
- [Qemu-devel] [PATCH v2 12/23] memory: add ioeventfd support, Avi Kivity, 2011/07/26