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| author |   Juergen Gross <jgross@suse.com> | 2022-06-02 22:23:48 +0300 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2022-06-06 08:54:52 +0200 |
| commit | d6aca3504c7ded5f4f46957e3685b9344d9743dd (patch) | |
| tree | 98a7a9c3a2d41bf5244176b39f2ef5b04522950b /drivers/xen/Makefile | |
| parent | xen/grants: support allocating consecutive grants (diff) | |
| download | wireguard-linux-d6aca3504c7ded5f4f46957e3685b9344d9743dd.tar.xz wireguard-linux-d6aca3504c7ded5f4f46957e3685b9344d9743dd.zip | |
xen/grant-dma-ops: Add option to restrict memory access under Xen
Introduce Xen grant DMA-mapping layer which contains special DMA-mapping
routines for providing grant references as DMA addresses to be used by
frontends (e.g. virtio) in Xen guests.
Add the needed functionality by providing a special set of DMA ops
handling the needed grant operations for the I/O pages.
The subsequent commit will introduce the use case for xen-grant DMA ops
layer to enable using virtio devices in Xen guests in a safe manner.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Link: https://lore.kernel.org/r/1654197833-25362-4-git-send-email-olekstysh@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'drivers/xen/Makefile')
| -rw-r--r-- | drivers/xen/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile index 5aae66e638a7..1a23cb0dc188 100644 --- a/drivers/xen/Makefile +++ b/drivers/xen/Makefile @@ -39,3 +39,4 @@ xen-gntalloc-y := gntalloc.o xen-privcmd-y := privcmd.o privcmd-buf.o obj-$(CONFIG_XEN_FRONT_PGDIR_SHBUF) += xen-front-pgdir-shbuf.o obj-$(CONFIG_XEN_UNPOPULATED_ALLOC) += unpopulated-alloc.o +obj-$(CONFIG_XEN_GRANT_DMA_OPS) += grant-dma-ops.o |