From 1cba9f6e662d0f7609c5e6a4cf66e8b0b1e601aa Mon Sep 17 00:00:00 2001 From: "Dr. David Alan Gilbert" Date: Mon, 12 Mar 2018 17:21:08 +0000 Subject: [PATCH] migration/ram: ramblock_recv_bitmap_test_byte_offset MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Utility for testing the map when you already know the offset in the RAMBlock. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Peter Xu Reviewed-by: Marc-André Lureau Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- migration/ram.c | 5 +++++ migration/ram.h | 1 + 2 files changed, 6 insertions(+) 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);