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| author |   Arnd Bergmann <arnd@arndb.de> | 2021-08-02 14:35:17 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2021-08-02 14:35:18 +0200 |
| commit | 64429b9e0e1dc05cbe4f88076909fe0c4d2d29dc (patch) | |
| tree | 56bbd2bb9329fc842df1abfe10f0b25f58001e8f /include | |
| parent | Merge tag 'imx-fixes-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes (diff) | |
| parent | firmware: tee_bnxt: Release TEE shm, session, and context during kexec (diff) | |
| download | wireguard-linux-64429b9e0e1dc05cbe4f88076909fe0c4d2d29dc.tar.xz wireguard-linux-64429b9e0e1dc05cbe4f88076909fe0c4d2d29dc.zip | |
Merge tag 'tee-kexec-fixes-for-v5.14' of git://git.linaro.org:/people/jens.wiklander/linux-tee into arm/fixes
tee: Improve support for kexec and kdump
This fixes several bugs uncovered while exercising the OP-TEE, ftpm
(firmware TPM), and tee_bnxt_fw (Broadcom BNXT firmware manager) drivers
with kexec and kdump (emergency kexec) based workflows.
* tag 'tee-kexec-fixes-for-v5.14' of git://git.linaro.org:/people/jens.wiklander/linux-tee:
firmware: tee_bnxt: Release TEE shm, session, and context during kexec
tpm_ftpm_tee: Free and unregister TEE shared memory during kexec
tee: Correct inappropriate usage of TEE_SHM_DMA_BUF flag
tee: add tee_shm_alloc_kernel_buf()
optee: Clear stale cache entries during initialization
optee: fix tee out of memory failure seen during kexec reboot
optee: Refuse to load the driver under the kdump kernel
optee: Fix memory leak when failing to register shm pages
Link: https://lore.kernel.org/r/20210726081039.GA2482361@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/tee_drv.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h index 54269e47ac9a..3ebfea0781f1 100644 --- a/include/linux/tee_drv.h +++ b/include/linux/tee_drv.h @@ -27,6 +27,7 @@ #define TEE_SHM_USER_MAPPED BIT(4) /* Memory mapped in user space */ #define TEE_SHM_POOL BIT(5) /* Memory allocated from pool */ #define TEE_SHM_KERNEL_MAPPED BIT(6) /* Memory mapped in kernel space */ +#define TEE_SHM_PRIV BIT(7) /* Memory private to TEE driver */ struct device; struct tee_device; @@ -332,6 +333,7 @@ void *tee_get_drvdata(struct tee_device *teedev); * @returns a pointer to 'struct tee_shm' */ struct tee_shm *tee_shm_alloc(struct tee_context *ctx, size_t size, u32 flags); +struct tee_shm *tee_shm_alloc_kernel_buf(struct tee_context *ctx, size_t size); /** * tee_shm_register() - Register shared memory buffer |