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tee: optee: support AVB trusted application

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Adds configuration option OPTEE_TA_AVB and a header file describing the
interface to the Android Verified Boot 2.0 (AVB) trusted application
provided by OP-TEE.

Tested-by: Igor Opaniuk <igor.opaniuk@linaro.org>
Reviewed-by: Igor Opaniuk <igor.opaniuk@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Jens Wiklander
2018-09-25 16:40:15 +02:00
committed by Tom Rini
parent 232cfd6d91
commit 1cc8cc4e67
5 changed files with 127 additions and 0 deletions
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16
drivers/tee/optee/Kconfig
View File

@@ -9,3 +9,19 @@ config OPTEE
mechanism. This driver can request services from OP-TEE, but also
handle Remote Procedure Calls (RPC) from OP-TEE needed to
execute a service. For more information see: https://www.op-tee.org
if OPTEE
menu "OP-TEE options"
config OPTEE_TA_AVB
bool "Support AVB TA"
default y
help
Enables support for the AVB Trusted Application (TA) in OP-TEE.
The TA can support the "avb" subcommands "read_rb", "write"rb"
and "is_unlocked".
endmenu
endif

24
drivers/tee/tee-uclass.c
View File

@@ -207,3 +207,27 @@ UCLASS_DRIVER(tee) = {
.pre_probe = tee_pre_probe,
.pre_remove = tee_pre_remove,
};
void tee_optee_ta_uuid_from_octets(struct tee_optee_ta_uuid *d,
const u8 s[TEE_UUID_LEN])
{
d->time_low = ((u32)s[0] << 24) | ((u32)s[1] << 16) |
((u32)s[2] << 8) | s[3],
d->time_mid = ((u32)s[4] << 8) | s[5];
d->time_hi_and_version = ((u32)s[6] << 8) | s[7];
memcpy(d->clock_seq_and_node, s + 8, sizeof(d->clock_seq_and_node));
}
void tee_optee_ta_uuid_to_octets(u8 d[TEE_UUID_LEN],
const struct tee_optee_ta_uuid *s)
{
d[0] = s->time_low >> 24;
d[1] = s->time_low >> 16;
d[2] = s->time_low >> 8;
d[3] = s->time_low;
d[4] = s->time_mid >> 8;
d[5] = s->time_mid;
d[6] = s->time_hi_and_version >> 8;
d[7] = s->time_hi_and_version;
memcpy(d + 8, s->clock_seq_and_node, sizeof(s->clock_seq_and_node));
}