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[Qemu-devel] [PATCH 15/25] vmstate: Add VMSTATE_BUFFER_UNUSED
From: |
Juan Quintela |
Subject: |
[Qemu-devel] [PATCH 15/25] vmstate: Add VMSTATE_BUFFER_UNUSED |
Date: |
Mon, 19 Oct 2009 20:43:00 +0200 |
It allows to have 'things' in savevm format not backed in the device state
Signed-off-by: Juan Quintela <address@hidden>
---
hw/hw.h | 18 ++++++++++++++++++
savevm.c | 20 ++++++++++++++++++++
2 files changed, 38 insertions(+), 0 deletions(-)
diff --git a/hw/hw.h b/hw/hw.h
index 3feb9df..d3bf0a7 100644
--- a/hw/hw.h
+++ b/hw/hw.h
@@ -335,6 +335,7 @@ extern const VMStateInfo vmstate_info_uint64;
extern const VMStateInfo vmstate_info_timer;
extern const VMStateInfo vmstate_info_ptimer;
extern const VMStateInfo vmstate_info_buffer;
+extern const VMStateInfo vmstate_info_unused_buffer;
#define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
#define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)
@@ -470,6 +471,14 @@ extern const VMStateInfo vmstate_info_buffer;
.offset = vmstate_offset_buffer(_state, _field) + _start, \
}
+#define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \
+ .name = "unused", \
+ .field_exists = (_test), \
+ .version_id = (_version), \
+ .size = (_size), \
+ .info = &vmstate_info_unused_buffer, \
+ .flags = VMS_BUFFER, \
+}
extern const VMStateDescription vmstate_pci_device;
#define VMSTATE_PCI_DEVICE(_field, _state) { \
@@ -617,6 +626,15 @@ extern const VMStateDescription vmstate_i2c_slave;
#define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \
VMSTATE_STATIC_BUFFER(_f, _s, 0, _start, sizeof(typeof_field(_s, _f)))
+#define VMSTATE_UNUSED_V(_v, _size) \
+ VMSTATE_UNUSED_BUFFER(NULL, _v, _size)
+
+#define VMSTATE_UNUSED(_size) \
+ VMSTATE_UNUSED_V(0, _size)
+
+#define VMSTATE_UNUSED_TEST(_test, _size) \
+ VMSTATE_UNUSED_BUFFER(_test, 0, _size)
+
#ifdef NEED_CPU_H
#if TARGET_LONG_BITS == 64
#define VMSTATE_UINTTL_V(_f, _s, _v) \
diff --git a/savevm.c b/savevm.c
index f377bfe..ed16cea 100644
--- a/savevm.c
+++ b/savevm.c
@@ -930,6 +930,26 @@ const VMStateInfo vmstate_info_buffer = {
.put = put_buffer,
};
+/* unused buffers: space that was used for some fields that are
+ not usefull anymore */
+
+static int get_unused_buffer(QEMUFile *f, void *pv, size_t size)
+{
+ qemu_fseek(f, size, SEEK_CUR);
+ return 0;
+}
+
+static void put_unused_buffer(QEMUFile *f, void *pv, size_t size)
+{
+ qemu_fseek(f, size, SEEK_CUR);
+}
+
+const VMStateInfo vmstate_info_unused_buffer = {
+ .name = "unused_buffer",
+ .get = get_unused_buffer,
+ .put = put_unused_buffer,
+};
+
typedef struct SaveStateEntry {
QTAILQ_ENTRY(SaveStateEntry) entry;
char idstr[256];
--
1.6.2.5
- [Qemu-devel] [PATCH 04/25] vmstate: add VMSTATE_UINT16_EQUAL[_V], (continued)
- [Qemu-devel] [PATCH 04/25] vmstate: add VMSTATE_UINT16_EQUAL[_V], Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 05/25] vmstate: Rename VMS_VARRAY to VMS_VARRAY_INT32, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 06/25] vmstate: fix indentation, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 07/25] vmstate: factor vmstate_offset_value, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 08/25] vmstate: factor vmstate_offset_pointer, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 09/25] vmstate: factor vmstate_offset_array, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 10/25] vmstate: factor vmstate_offset_buffer, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 11/25] vmstate: factor VMSTATE_*BUFFER* definitions, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 12/25] vmstate: Unfold VMSTATE_INT32_VARRAY() only use and remove it, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 13/25] vmstate: add VMS_VARRAY_UINT16_UNSAFE (varrays with uint16 indexes), Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 15/25] vmstate: Add VMSTATE_BUFFER_UNUSED,
Juan Quintela <=
- [Qemu-devel] [PATCH 17/25] rtl8139: port TallyCounters to vmstate, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 14/25] vmstate: Add version arg to VMSTATE_SINGLE_TEST(), Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 16/25] vmstate: Introduce the concept of sub-arrays, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 19/25] eeprom93xx: port to vmstate, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 21/25] pcnet: port to vmstate, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 18/25] rtl8139: port to vmstate, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 22/25] ne2000: port to vmstate, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 20/25] eepro100: port to vmstate, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 24/25] e1000: unfold mac_regarraystosave array, Juan Quintela, 2009/10/19
- [Qemu-devel] [PATCH 23/25] e1000: unfold mac_reg_tosave array, Juan Quintela, 2009/10/19