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Merge tag 'tee-subsys-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

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TEE subsystem work
- Reserve GlobalPlatform implementation defined logon method range
- Add support to register kernel memory with TEE to allow TEE bus drivers
  to register memory references.

* tag 'tee-subsys-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: add private login method for kernel clients
  tee: enable support to register kernel memory

Link: https://lore.kernel.org/r/20200504181049.GA10860@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
2020-05-25 16:38:01 +02:00
parent acb09eca32 104edb94cc
commit b4ad9a32b2
4 changed files with 42 additions and 3 deletions
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9
include/uapi/linux/tee.h
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@@ -173,6 +173,15 @@ struct tee_ioctl_buf_data {
#define TEE_IOCTL_LOGIN_APPLICATION 4
#define TEE_IOCTL_LOGIN_USER_APPLICATION 5
#define TEE_IOCTL_LOGIN_GROUP_APPLICATION 6
/*
* Disallow user-space to use GP implementation specific login
* method range (0x80000000 - 0xBFFFFFFF). This range is rather
* being reserved for REE kernel clients or TEE implementation.
*/
#define TEE_IOCTL_LOGIN_REE_KERNEL_MIN 0x80000000
#define TEE_IOCTL_LOGIN_REE_KERNEL_MAX 0xBFFFFFFF
/* Private login method for REE kernel clients */
#define TEE_IOCTL_LOGIN_REE_KERNEL 0x80000000
/**
* struct tee_ioctl_param - parameter