summaryrefslogtreecommitdiff
path: root/drivers/tee
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/tee')
-rw-r--r--drivers/tee/amdtee/core.c16
-rw-r--r--drivers/tee/optee/ffa_abi.c41
-rw-r--r--drivers/tee/optee/optee_private.h2
-rw-r--r--drivers/tee/optee/smc_abi.c3
-rw-r--r--drivers/tee/tee_core.c11
5 files changed, 50 insertions, 23 deletions
diff --git a/drivers/tee/amdtee/core.c b/drivers/tee/amdtee/core.c
index e487231d25dc..fb39d9a19c69 100644
--- a/drivers/tee/amdtee/core.c
+++ b/drivers/tee/amdtee/core.c
@@ -3,19 +3,22 @@
* Copyright 2019 Advanced Micro Devices, Inc.
*/
+ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/errno.h>
+#include <linux/device.h>
+#include <linux/firmware.h>
#include <linux/io.h>
+#include <linux/mm.h>
#include <linux/module.h>
+#include <linux/psp-tee.h>
#include <linux/slab.h>
#include <linux/string.h>
-#include <linux/device.h>
#include <linux/tee_core.h>
#include <linux/types.h>
-#include <linux/mm.h>
#include <linux/uaccess.h>
-#include <linux/firmware.h>
+
#include "amdtee_private.h"
-#include <linux/psp-tee.h>
static struct amdtee_driver_data *drv_data;
static DEFINE_MUTEX(session_list_mutex);
@@ -458,7 +461,7 @@ static int __init amdtee_driver_init(void)
rc = psp_check_tee_status();
if (rc) {
- pr_err("amd-tee driver: tee not present\n");
+ pr_err("tee not present\n");
return rc;
}
@@ -494,7 +497,6 @@ static int __init amdtee_driver_init(void)
drv_data->amdtee = amdtee;
- pr_info("amd-tee driver initialization successful\n");
return 0;
err_device_unregister:
@@ -510,7 +512,7 @@ err_kfree_drv_data:
kfree(drv_data);
drv_data = NULL;
- pr_err("amd-tee driver initialization failed\n");
+ pr_err("initialization failed\n");
return rc;
}
module_init(amdtee_driver_init);
diff --git a/drivers/tee/optee/ffa_abi.c b/drivers/tee/optee/ffa_abi.c
index f3af5666bb11..f9ef7d94cebd 100644
--- a/drivers/tee/optee/ffa_abi.c
+++ b/drivers/tee/optee/ffa_abi.c
@@ -728,12 +728,21 @@ static bool optee_ffa_exchange_caps(struct ffa_device *ffa_dev,
return true;
}
+static void notif_work_fn(struct work_struct *work)
+{
+ struct optee_ffa *optee_ffa = container_of(work, struct optee_ffa,
+ notif_work);
+ struct optee *optee = container_of(optee_ffa, struct optee, ffa);
+
+ optee_do_bottom_half(optee->ctx);
+}
+
static void notif_callback(int notify_id, void *cb_data)
{
struct optee *optee = cb_data;
if (notify_id == optee->ffa.bottom_half_value)
- optee_do_bottom_half(optee->ctx);
+ queue_work(optee->ffa.notif_wq, &optee->ffa.notif_work);
else
optee_notif_send(optee, notify_id);
}
@@ -817,9 +826,11 @@ static void optee_ffa_remove(struct ffa_device *ffa_dev)
struct optee *optee = ffa_dev_get_drvdata(ffa_dev);
u32 bottom_half_id = optee->ffa.bottom_half_value;
- if (bottom_half_id != U32_MAX)
+ if (bottom_half_id != U32_MAX) {
ffa_dev->ops->notifier_ops->notify_relinquish(ffa_dev,
bottom_half_id);
+ destroy_workqueue(optee->ffa.notif_wq);
+ }
optee_remove_common(optee);
mutex_destroy(&optee->ffa.mutex);
@@ -835,6 +846,13 @@ static int optee_ffa_async_notif_init(struct ffa_device *ffa_dev,
u32 notif_id = 0;
int rc;
+ INIT_WORK(&optee->ffa.notif_work, notif_work_fn);
+ optee->ffa.notif_wq = create_workqueue("optee_notification");
+ if (!optee->ffa.notif_wq) {
+ rc = -EINVAL;
+ goto err;
+ }
+
while (true) {
rc = ffa_dev->ops->notifier_ops->notify_request(ffa_dev,
is_per_vcpu,
@@ -851,19 +869,24 @@ static int optee_ffa_async_notif_init(struct ffa_device *ffa_dev,
* notifications in that case.
*/
if (rc != -EACCES)
- return rc;
+ goto err_wq;
notif_id++;
if (notif_id >= OPTEE_FFA_MAX_ASYNC_NOTIF_VALUE)
- return rc;
+ goto err_wq;
}
optee->ffa.bottom_half_value = notif_id;
rc = enable_async_notif(optee);
- if (rc < 0) {
- ffa_dev->ops->notifier_ops->notify_relinquish(ffa_dev,
- notif_id);
- optee->ffa.bottom_half_value = U32_MAX;
- }
+ if (rc < 0)
+ goto err_rel;
+
+ return 0;
+err_rel:
+ ffa_dev->ops->notifier_ops->notify_relinquish(ffa_dev, notif_id);
+err_wq:
+ destroy_workqueue(optee->ffa.notif_wq);
+err:
+ optee->ffa.bottom_half_value = U32_MAX;
return rc;
}
diff --git a/drivers/tee/optee/optee_private.h b/drivers/tee/optee/optee_private.h
index dc0f355ef72a..9526087f0e68 100644
--- a/drivers/tee/optee/optee_private.h
+++ b/drivers/tee/optee/optee_private.h
@@ -165,6 +165,8 @@ struct optee_ffa {
/* Serializes access to @global_ids */
struct mutex mutex;
struct rhashtable global_ids;
+ struct workqueue_struct *notif_wq;
+ struct work_struct notif_work;
};
struct optee;
diff --git a/drivers/tee/optee/smc_abi.c b/drivers/tee/optee/smc_abi.c
index f0c3ac1103bb..26f8f7bbbe56 100644
--- a/drivers/tee/optee/smc_abi.c
+++ b/drivers/tee/optee/smc_abi.c
@@ -1551,8 +1551,7 @@ fw_load:
data_pa_high, data_pa_low, 0, 0, 0, &res);
if (!rc)
rc = res.a0;
- if (fw)
- release_firmware(fw);
+ release_firmware(fw);
kfree(data_buf);
if (!rc) {
diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c
index d113679b1e2d..acc7998758ad 100644
--- a/drivers/tee/tee_core.c
+++ b/drivers/tee/tee_core.c
@@ -10,6 +10,7 @@
#include <linux/fs.h>
#include <linux/idr.h>
#include <linux/module.h>
+#include <linux/overflow.h>
#include <linux/slab.h>
#include <linux/tee_core.h>
#include <linux/uaccess.h>
@@ -19,7 +20,7 @@
#define TEE_NUM_DEVICES 32
-#define TEE_IOCTL_PARAM_SIZE(x) (sizeof(struct tee_param) * (x))
+#define TEE_IOCTL_PARAM_SIZE(x) (size_mul(sizeof(struct tee_param), (x)))
#define TEE_UUID_NS_NAME_SIZE 128
@@ -487,7 +488,7 @@ static int tee_ioctl_open_session(struct tee_context *ctx,
if (copy_from_user(&arg, uarg, sizeof(arg)))
return -EFAULT;
- if (sizeof(arg) + TEE_IOCTL_PARAM_SIZE(arg.num_params) != buf.buf_len)
+ if (size_add(sizeof(arg), TEE_IOCTL_PARAM_SIZE(arg.num_params)) != buf.buf_len)
return -EINVAL;
if (arg.num_params) {
@@ -565,7 +566,7 @@ static int tee_ioctl_invoke(struct tee_context *ctx,
if (copy_from_user(&arg, uarg, sizeof(arg)))
return -EFAULT;
- if (sizeof(arg) + TEE_IOCTL_PARAM_SIZE(arg.num_params) != buf.buf_len)
+ if (size_add(sizeof(arg), TEE_IOCTL_PARAM_SIZE(arg.num_params)) != buf.buf_len)
return -EINVAL;
if (arg.num_params) {
@@ -699,7 +700,7 @@ static int tee_ioctl_supp_recv(struct tee_context *ctx,
if (get_user(num_params, &uarg->num_params))
return -EFAULT;
- if (sizeof(*uarg) + TEE_IOCTL_PARAM_SIZE(num_params) != buf.buf_len)
+ if (size_add(sizeof(*uarg), TEE_IOCTL_PARAM_SIZE(num_params)) != buf.buf_len)
return -EINVAL;
params = kcalloc(num_params, sizeof(struct tee_param), GFP_KERNEL);
@@ -798,7 +799,7 @@ static int tee_ioctl_supp_send(struct tee_context *ctx,
get_user(num_params, &uarg->num_params))
return -EFAULT;
- if (sizeof(*uarg) + TEE_IOCTL_PARAM_SIZE(num_params) > buf.buf_len)
+ if (size_add(sizeof(*uarg), TEE_IOCTL_PARAM_SIZE(num_params)) > buf.buf_len)
return -EINVAL;
params = kcalloc(num_params, sizeof(struct tee_param), GFP_KERNEL);
generated by cgit (git 2.34.1) at 2025-07-05 05:57:31 +0000