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Switch ram_save to the memory API 

Avoid using ram_addr_t, instead use (MemoryRegion *, offset) pairs.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2011-12-21 13:11:22 +02:00
parent 7c63736603
commit 71c510e26e
1 changed files with 14 additions and 20 deletions
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34
arch_init.c
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@ -117,24 +117,22 @@ static int ram_save_block(QEMUFile *f)
{
RAMBlock *block = last_block;
ram_addr_t offset = last_offset;
ram_addr_t current_addr;
int bytes_sent = 0;
MemoryRegion *mr;
if (!block)
block = QLIST_FIRST(&ram_list.blocks);
current_addr = block->offset + offset;
do {
if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
mr = block->mr;
if (memory_region_get_dirty(mr, offset, DIRTY_MEMORY_MIGRATION)) {
uint8_t *p;
int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
cpu_physical_memory_reset_dirty(current_addr,
current_addr + TARGET_PAGE_SIZE,
MIGRATION_DIRTY_FLAG);
memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE,
DIRTY_MEMORY_MIGRATION);
p = block->host + offset;
p = memory_region_get_ram_ptr(mr) + offset;
if (is_dup_page(p, *p)) {
qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
@ -166,10 +164,7 @@ static int ram_save_block(QEMUFile *f)
if (!block)
block = QLIST_FIRST(&ram_list.blocks);
}
current_addr = block->offset + offset;
} while (current_addr != last_block->offset + last_offset);
} while (block != last_block || offset != last_offset);
last_block = block;
last_offset = offset;
@ -186,9 +181,9 @@ static ram_addr_t ram_save_remaining(void)
QLIST_FOREACH(block, &ram_list.blocks, next) {
ram_addr_t addr;
for (addr = block->offset; addr < block->offset + block->length;
addr += TARGET_PAGE_SIZE) {
if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
if (memory_region_get_dirty(block->mr, addr,
DIRTY_MEMORY_MIGRATION)) {
count++;
}
}
@ -275,11 +270,10 @@ int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
/* Make sure all dirty bits are set */
QLIST_FOREACH(block, &ram_list.blocks, next) {
for (addr = block->offset; addr < block->offset + block->length;
addr += TARGET_PAGE_SIZE) {
if (!cpu_physical_memory_get_dirty(addr,
MIGRATION_DIRTY_FLAG)) {
cpu_physical_memory_set_dirty(addr);
for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
if (!memory_region_get_dirty(block->mr, addr,
DIRTY_MEMORY_MIGRATION)) {
memory_region_set_dirty(block->mr, addr);
}
}
}