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[Qemu-devel] [PATCH 06/27] ram: introduce migration_bitmap_set_dirty()
From: |
Juan Quintela |
Subject: |
[Qemu-devel] [PATCH 06/27] ram: introduce migration_bitmap_set_dirty() |
Date: |
Tue, 24 Jul 2012 20:36:31 +0200 |
It just marks a region of memory as dirty.
Signed-off-by: Juan Quintela <address@hidden>
---
arch_init.c | 20 +++++++++++++-------
1 file changed, 13 insertions(+), 7 deletions(-)
diff --git a/arch_init.c b/arch_init.c
index 5a97710..b47bf05 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -342,6 +342,18 @@ static RAMBlock *last_block;
static ram_addr_t last_offset;
static uint32_t last_version;
+static inline void migration_bitmap_set_dirty(MemoryRegion *mr, int length)
+{
+ ram_addr_t addr;
+
+ for (addr = 0; addr < length; addr += TARGET_PAGE_SIZE) {
+ if (!memory_region_get_dirty(mr, addr, TARGET_PAGE_SIZE,
+ DIRTY_MEMORY_MIGRATION)) {
+ memory_region_set_dirty(mr, addr, TARGET_PAGE_SIZE);
+ }
+ }
+}
+
/*
* ram_save_block: Writes a page of memory to the stream f
*
@@ -504,7 +516,6 @@ static void reset_ram_globals(void)
static int ram_save_setup(QEMUFile *f, void *opaque)
{
- ram_addr_t addr;
RAMBlock *block;
qemu_mutex_lock_ramlist();
@@ -526,12 +537,7 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
}
QLIST_FOREACH(block, &ram_list.blocks, next) {
- for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
- if (!memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
- DIRTY_MEMORY_MIGRATION)) {
- memory_region_set_dirty(block->mr, addr, TARGET_PAGE_SIZE);
- }
- }
+ migration_bitmap_set_dirty(block->mr, block->length);
}
memory_global_dirty_log_start();
--
1.7.10.4
- [Qemu-devel] [RFC 00/27] Migration thread (WIP), Juan Quintela, 2012/07/24
- [Qemu-devel] [PATCH 01/27] buffered_file: g_realloc() can't fail, Juan Quintela, 2012/07/24
- [Qemu-devel] [PATCH 04/27] add a version number to ram_list, Juan Quintela, 2012/07/24
- [Qemu-devel] [PATCH 02/27] split MRU ram list, Juan Quintela, 2012/07/24
- [Qemu-devel] [PATCH 06/27] ram: introduce migration_bitmap_set_dirty(),
Juan Quintela <=
- [Qemu-devel] [PATCH 05/27] protect the ramlist with a separate mutex, Juan Quintela, 2012/07/24
- [Qemu-devel] [PATCH 03/27] savevm: Factorize ram globals reset in its own function, Juan Quintela, 2012/07/24
- [Qemu-devel] [PATCH 08/27] ram: Export last_ram_offset(), Juan Quintela, 2012/07/24
- [Qemu-devel] [PATCH 09/27] ram: introduce migration_bitmap_sync(), Juan Quintela, 2012/07/24
- [Qemu-devel] [PATCH 12/27] buffered_file: rename opaque to migration_state, Juan Quintela, 2012/07/24
- [Qemu-devel] [PATCH 10/27] Separate migration bitmap, Juan Quintela, 2012/07/24
- [Qemu-devel] [PATCH 07/27] ram: Introduce migration_bitmap_test_and_reset_dirty(), Juan Quintela, 2012/07/24
- [Qemu-devel] [PATCH 11/27] BufferedFile: append, then flush, Juan Quintela, 2012/07/24