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authorMichael S. Tsirkin <mst@redhat.com>2010-11-22 19:52:34 +0200
committerMichael S. Tsirkin <mst@redhat.com>2010-12-02 21:13:39 +0200
commitb2e0a138e77245290428a7d599a929e2e1bfe510 (patch)
tree5c483ccf4927fbdd9a1000695a36658574d8f542 /cpu-common.h
parentc924f36a300cbc54d3cb511116e8e2bae17f5ae6 (diff)
downloadqemu-b2e0a138e77245290428a7d599a929e2e1bfe510.tar.gz
migration: stable ram block ordering
This makes ram block ordering under migration stable, ordered by offset. This is especially useful for migration to exec, for debugging. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'cpu-common.h')
-rw-r--r--cpu-common.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/cpu-common.h b/cpu-common.h
index a543b5d7cf..bb6b137e16 100644
--- a/cpu-common.h
+++ b/cpu-common.h
@@ -46,6 +46,9 @@ ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size);
void qemu_ram_free(ram_addr_t addr);
/* This should only be used for ram local to a device. */
void *qemu_get_ram_ptr(ram_addr_t addr);
+/* Same but slower, to use for migration, where the order of
+ * RAMBlocks must not change. */
+void *qemu_safe_ram_ptr(ram_addr_t addr);
/* This should not be used by devices. */
int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr);
ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr);