Messages in this thread Patch in this message |  | | From | Volodymyr Babchuk <> | Subject | [RESEND PATCH v2 04/14] tee: shm: add page accessor functions | Date | Wed, 29 Nov 2017 14:48:28 +0200 |
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From: Volodymyr Babchuk <vlad.babchuk@gmail.com>
In order to register a shared buffer in TEE, we need accessor function that return list of pages for that buffer.
Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com> --- include/linux/tee_drv.h | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h index 0d7f2a5..5489c38 100644 --- a/include/linux/tee_drv.h +++ b/include/linux/tee_drv.h @@ -394,6 +394,19 @@ static inline size_t tee_shm_get_size(struct tee_shm *shm) } /** + * tee_shm_get_pages() - Get list of pages that hold shared buffer + * @shm: Shared memory handle + * @num_pages: Number of pages will be stored there + * @returns pointer to pages array + */ +static inline struct page **tee_shm_get_pages(struct tee_shm *shm, + size_t *num_pages) +{ + *num_pages = shm->num_pages; + return shm->pages; +} + +/** * tee_shm_get_page_offset() - Get shared buffer offset from page start * @shm: Shared memory handle * @returns page offset of shared buffer -- 2.7.4
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