dma-helpers: add accounting wrappers

The length of the transfer is already in the sglist, the wrapper simply
fetches it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/dma.h b/dma.h
index 346ac4f..20e86d2 100644
--- a/dma.h
+++ b/dma.h
@@ -61,4 +61,7 @@ BlockDriverAIOCB *dma_bdrv_write(BlockDriverState *bs,
 uint64_t dma_buf_read(uint8_t *ptr, int32_t len, QEMUSGList *sg);
 uint64_t dma_buf_write(uint8_t *ptr, int32_t len, QEMUSGList *sg);
 
+void dma_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie,
+                    QEMUSGList *sg, enum BlockAcctType type);
+
 #endif