mii/qemu
1
0
Fork 0
mirror of https://github.com/mii443/qemu.git synced 2025-09-03 07:39:26 +00:00
Code Issues Packages Projects Releases Wiki Activity

Remove uses of ram.last_offset (aka last_ram_offset)

Browse Source 
We currently need this either to allocate the next ram_addr_t for a
new block, or for total memory to be migrated.  Both of which we can
calculate without need of this to keep us in a contiguous address space.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Alex Williamson
2010-06-25 11:08:38 -06:00
committed by Anthony Liguori
parent f292787d9a
commit d17b5288d9
3 changed files with 30 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
arch_init.c
View File

@ -108,9 +108,10 @@ static int ram_save_block(QEMUFile *f)
static ram_addr_t current_addr = 0;
ram_addr_t saved_addr = current_addr;
ram_addr_t addr = 0;
uint64_t total_ram = ram_bytes_total();
int bytes_sent = 0;
while (addr < ram_list.last_offset) {
while (addr < total_ram) {
if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
uint8_t *p;
@ -133,7 +134,7 @@ static int ram_save_block(QEMUFile *f)
break;
}
addr += TARGET_PAGE_SIZE;
current_addr = (saved_addr + addr) % ram_list.last_offset;
current_addr = (saved_addr + addr) % total_ram;
}
return bytes_sent;
@ -145,8 +146,9 @@ static ram_addr_t ram_save_remaining(void)
{
ram_addr_t addr;
ram_addr_t count = 0;
uint64_t total_ram = ram_bytes_total();
for (addr = 0; addr < ram_list.last_offset; addr += TARGET_PAGE_SIZE) {
for (addr = 0; addr < total_ram; addr += TARGET_PAGE_SIZE) {
if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
count++;
}
@ -167,7 +169,13 @@ uint64_t ram_bytes_transferred(void)
uint64_t ram_bytes_total(void)
{
return ram_list.last_offset;
RAMBlock *block;
uint64_t total = 0;
QLIST_FOREACH(block, &ram_list.blocks, next)
total += block->length;
return total;
}
int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
@ -188,10 +196,11 @@ int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
}
if (stage == 1) {
uint64_t total_ram = ram_bytes_total();
bytes_transferred = 0;
/* Make sure all dirty bits are set */
for (addr = 0; addr < ram_list.last_offset; addr += TARGET_PAGE_SIZE) {
for (addr = 0; addr < total_ram; addr += TARGET_PAGE_SIZE) {
if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
cpu_physical_memory_set_dirty(addr);
}
@ -200,7 +209,7 @@ int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
/* Enable dirty memory tracking */
cpu_physical_memory_set_dirty_tracking(1);
qemu_put_be64(f, ram_list.last_offset | RAM_SAVE_FLAG_MEM_SIZE);
qemu_put_be64(f, total_ram | RAM_SAVE_FLAG_MEM_SIZE);
}
bytes_transferred_last = bytes_transferred;
@ -259,7 +268,7 @@ int ram_load(QEMUFile *f, void *opaque, int version_id)
addr &= TARGET_PAGE_MASK;
if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
if (addr != ram_list.last_offset) {
if (addr != ram_bytes_total()) {
return -EINVAL;
}
}