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| author | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2018-03-12 17:21:08 +0000 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2018-03-20 05:03:28 +0200 |
| commit | 1cba9f6e662d0f7609c5e6a4cf66e8b0b1e601aa (patch) | |
| tree | 7a931e9286fa35831eaa4d4f69cac7794ab56a07 /migration | |
| parent | 55d754b307f6e10503dcf2e2136e6e0aef8c80f5 (diff) | |
| download | qemu-1cba9f6e662d0f7609c5e6a4cf66e8b0b1e601aa.tar.gz | |
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.c | 5 | ||||
| -rw-r--r-- | migration/ram.h | 1 |
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); |