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tools/virtio: stub DMA mapping functions

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Add dma_map_page_attrs and dma_unmap_page_attrs stubs.
Follow the same pattern as existing DMA mapping stubs.

Created using Cursor CLI.

Message-ID: <3512df1fe0e2129ea493434a21c940c50381cc93.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin
2025-12-04 12:22:34 -05:00
parent 42059e68ea
commit 03d768a38c
1 changed files with 4 additions and 0 deletions
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4
tools/virtio/linux/dma-mapping.h
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@@ -22,6 +22,7 @@ enum dma_data_direction {
#define dma_free_coherent(d, s, p, h) kfree(p)
#define dma_map_page(d, p, o, s, dir) (page_to_phys(p) + (o))
#define dma_map_page_attrs(d, p, o, s, dir, a) (page_to_phys(p) + (o))
#define dma_map_single(d, p, s, dir) (virt_to_phys(p))
#define dma_map_single_attrs(d, p, s, dir, a) (virt_to_phys(p))
@@ -29,6 +30,9 @@ enum dma_data_direction {
#define dma_unmap_single(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0)
#define dma_unmap_page(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0)
#define dma_unmap_page_attrs(d, a, s, r, t) do { \
(void)(d); (void)(a); (void)(s); (void)(r); (void)(t); \
} while (0)
#define sg_dma_address(sg) (0)
#define sg_dma_len(sg) (0)