diff options
| author | John Levon <john.levon@nutanix.com> | 2023-07-31 14:43:23 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-07-31 14:43:23 +0100 |
| commit | 8038da119c3fd53970d6820208b78e9c1798ba95 (patch) | |
| tree | 649a8f86e1347473b94593c4f60ff317e89e8e9c /include | |
| parent | 56eeb6809e4d68546eae3ff8d0e03aaea66d46d1 (diff) | |
| download | libvfio-user-8038da119c3fd53970d6820208b78e9c1798ba95.zip libvfio-user-8038da119c3fd53970d6820208b78e9c1798ba95.tar.gz libvfio-user-8038da119c3fd53970d6820208b78e9c1798ba95.tar.bz2 | |
docs: document DMA message dirty handling (#755)
Document that on vfu_sgl_write(), it's the client's responsibility to
track any dirty pages.
Signed-off-by: John Levon <john.levon@nutanix.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/libvfio-user.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/libvfio-user.h b/include/libvfio-user.h index 0a8af2b..7cd28b5 100644 --- a/include/libvfio-user.h +++ b/include/libvfio-user.h @@ -869,6 +869,9 @@ vfu_sgl_read(vfu_ctx_t *vfu_ctx, dma_sg_t *sg, size_t cnt, void *data); * alternative to reading from a vfu_sgl_get() mapping, if the region is not * directly mappable, or DMA notification callbacks have not been provided. * + * During live migration, this call does not mark any of the written pages as + * dirty; the client is expected to track this. + * * @vfu_ctx: the libvfio-user context * @sg: a DMA segment obtained from dma_addr_to_sg * @data: data buffer to write |