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authorDr. David Alan Gilbert <dgilbert@redhat.com>2018-03-12 17:21:08 +0000
committerMichael S. Tsirkin <mst@redhat.com>2018-03-20 05:03:28 +0200
commit1cba9f6e662d0f7609c5e6a4cf66e8b0b1e601aa (patch)
tree7a931e9286fa35831eaa4d4f69cac7794ab56a07 /migration
parent55d754b307f6e10503dcf2e2136e6e0aef8c80f5 (diff)
migration/ram: ramblock_recv_bitmap_test_byte_offset
Utility for testing the map when you already know the offset in the RAMBlock. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'migration')
-rw-r--r--migration/ram.c5
-rw-r--r--migration/ram.h1
2 files changed, 6 insertions, 0 deletions
diff --git a/migration/ram.c b/migration/ram.c
index 7266351fd0..6ce7770b8c 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -169,6 +169,11 @@ int ramblock_recv_bitmap_test(RAMBlock *rb, void *host_addr)
rb->receivedmap);
}
+bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_offset)
+{
+ return test_bit(byte_offset >> TARGET_PAGE_BITS, rb->receivedmap);
+}
+
void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr)
{
set_bit_atomic(ramblock_recv_bitmap_offset(host_addr, rb), rb->receivedmap);
diff --git a/migration/ram.h b/migration/ram.h
index 53f0021c51..5030be110a 100644
--- a/migration/ram.h
+++ b/migration/ram.h
@@ -60,6 +60,7 @@ int ram_postcopy_incoming_init(MigrationIncomingState *mis);
void ram_handle_compressed(void *host, uint8_t ch, uint64_t size);
int ramblock_recv_bitmap_test(RAMBlock *rb, void *host_addr);
+bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_offset);
void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr);
void ramblock_recv_bitmap_set_range(RAMBlock *rb, void *host_addr, size_t nr);