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| author | Mattias Nissler <122288598+mnissler-rivos@users.noreply.github.com> | 2023-07-03 18:28:59 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-07-03 17:28:59 +0100 |
| commit | bb308a2e8ee9486a4c8b53d8d773f7c8faaeba08 (patch) | |
| tree | a0e7d7eb4ef1823e11c3add311eae99c5cdabef9 /lib | |
| parent | bf8ce3fbe1b503324dfacba49cbdb18f637986d8 (diff) | |
| download | libvfio-user-bb308a2e8ee9486a4c8b53d8d773f7c8faaeba08.zip libvfio-user-bb308a2e8ee9486a4c8b53d8d773f7c8faaeba08.tar.gz libvfio-user-bb308a2e8ee9486a4c8b53d8d773f7c8faaeba08.tar.bz2 | |
Fix address calculation for message-based DMA (#740)
The correct DMA address is formed by adding base and offset - the latter
was accidentally missing. Change the server example to read and write
blocks at non-zero offsets, such that `test-client-server.sh` exercises
offset handling.
Signed-off-by: Mattias Nissler <mnissler@rivosinc.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libvfio-user.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libvfio-user.c b/lib/libvfio-user.c index 94524a2..663d2cd 100644 --- a/lib/libvfio-user.c +++ b/lib/libvfio-user.c @@ -2198,7 +2198,7 @@ vfu_dma_transfer(vfu_ctx_t *vfu_ctx, enum vfio_user_command cmd, while (remaining > 0) { int ret; - dma_req->addr = (uintptr_t)sg->dma_addr + count; + dma_req->addr = (uintptr_t)sg->dma_addr + sg->offset + count; dma_req->count = MIN(remaining, vfu_ctx->client_max_data_xfer_size); if (cmd == VFIO_USER_DMA_WRITE) { |