From 95ffe4ca43877eea176d7e95aa0d38bbdc3d2903 Mon Sep 17 00:00:00 2001 From: Jens Wiklander Date: Thu, 28 Dec 2017 10:08:00 +0100 Subject: [PATCH] tee: add start argument to shm_register callback Adds a start argument to the shm_register callback to allow the callback to check memory type of the passed pages. Signed-off-by: Jens Wiklander --- drivers/tee/optee/call.c | 6 ++++-- drivers/tee/optee/optee_private.h | 6 ++++-- drivers/tee/tee_shm.c | 2 +- include/linux/tee_drv.h | 3 ++- 4 files changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/tee/optee/call.c b/drivers/tee/optee/call.c index e675e82..d61c14b 100644 --- a/drivers/tee/optee/call.c +++ b/drivers/tee/optee/call.c @@ -536,7 +536,8 @@ void optee_free_pages_list(void *list, size_t num_entries) } int optee_shm_register(struct tee_context *ctx, struct tee_shm *shm, - struct page **pages, size_t num_pages) + struct page **pages, size_t num_pages, + unsigned long start) { struct tee_shm *shm_arg = NULL; struct optee_msg_arg *msg_arg; @@ -606,7 +607,8 @@ int optee_shm_unregister(struct tee_context *ctx, struct tee_shm *shm) } int optee_shm_register_supp(struct tee_context *ctx, struct tee_shm *shm, - struct page **pages, size_t num_pages) + struct page **pages, size_t num_pages, + unsigned long start) { /* * We don't want to register supplicant memory in OP-TEE. diff --git a/drivers/tee/optee/optee_private.h b/drivers/tee/optee/optee_private.h index de7962e..f049308 100644 --- a/drivers/tee/optee/optee_private.h +++ b/drivers/tee/optee/optee_private.h @@ -173,11 +173,13 @@ void optee_enable_shm_cache(struct optee *optee); void optee_disable_shm_cache(struct optee *optee); int optee_shm_register(struct tee_context *ctx, struct tee_shm *shm, - struct page **pages, size_t num_pages); + struct page **pages, size_t num_pages, + unsigned long start); int optee_shm_unregister(struct tee_context *ctx, struct tee_shm *shm); int optee_shm_register_supp(struct tee_context *ctx, struct tee_shm *shm, - struct page **pages, size_t num_pages); + struct page **pages, size_t num_pages, + unsigned long start); int optee_shm_unregister_supp(struct tee_context *ctx, struct tee_shm *shm); int optee_from_msg_param(struct tee_param *params, size_t num_params, diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c index 04e1b8b..6a17b02 100644 --- a/drivers/tee/tee_shm.c +++ b/drivers/tee/tee_shm.c @@ -299,7 +299,7 @@ struct tee_shm *tee_shm_register(struct tee_context *ctx, unsigned long addr, } rc = teedev->desc->ops->shm_register(ctx, shm, shm->pages, - shm->num_pages); + shm->num_pages, start); if (rc) { ret = ERR_PTR(rc); goto err; diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h index a1d7f46..230a1eb 100644 --- a/include/linux/tee_drv.h +++ b/include/linux/tee_drv.h @@ -108,7 +108,8 @@ struct tee_driver_ops { int (*supp_send)(struct tee_context *ctx, u32 ret, u32 num_params, struct tee_param *param); int (*shm_register)(struct tee_context *ctx, struct tee_shm *shm, - struct page **pages, size_t num_pages); + struct page **pages, size_t num_pages, + unsigned long start); int (*shm_unregister)(struct tee_context *ctx, struct tee_shm *shm); }; -- 2.7.4