Re: [Qemu-devel] [PATCH v4 13/29] migration/ram: ramblock_recv_bitmap_test_byte_offset

[Marc-André Lureau]

On Thu, Mar 8, 2018 at 8:57 PM, Dr. David Alan Gilbert (git)
 wrote:
> From: "Dr. David Alan Gilbert" 
>
> 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 


> ---
>  migration/ram.c | 5 +
>  migration/ram.h | 1 +
>  2 files changed, 6 insertions(+)
>
> diff --git a/migration/ram.c b/migration/ram.c
> index 3b6c077964..3d754422e8 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);
>
> --
> 2.14.3
>
>



-- 
Marc-André Lureau

[Qemu-devel] [PATCH v4 13/29] migration/ram: ramblock_recv_bitmap_test_byte_offset

[Dr. David Alan Gilbert (git)]

From: "Dr. David Alan Gilbert" 

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 
---
 migration/ram.c | 5 +
 migration/ram.h | 1 +
 2 files changed, 6 insertions(+)

diff --git a/migration/ram.c b/migration/ram.c
index 3b6c077964..3d754422e8 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);
 
-- 
2.14.3