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authorSumit Garg <[email protected]>2022-11-10 16:41:40 +0530
committerJarkko Sakkinen <[email protected]>2022-12-08 16:20:46 +0000
commit1506fba28b53fd159c7028c4809a4a3143a38eb7 (patch)
treeb3846368332ee092f49d8c581910699aaccb5b20
parente10de46bc3c60d938ced069e85f3e7d009a656d2 (diff)
KEYS: trusted: tee: Make registered shm dependency explicit
TEE trusted keys support depends on registered shared memory support since the key buffers are needed to be registered with OP-TEE. So make that dependency explicit to not register trusted keys support if underlying implementation doesn't support registered shared memory. Signed-off-by: Sumit Garg <[email protected]> Tested-by: Jerome Forissier <[email protected]> Reviewed-by: Jarkko Sakkinen <[email protected]> Signed-off-by: Jarkko Sakkinen <[email protected]>
-rw-r--r--security/keys/trusted-keys/trusted_tee.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/security/keys/trusted-keys/trusted_tee.c b/security/keys/trusted-keys/trusted_tee.c
index c8626686ee1b..ac3e270ade69 100644
--- a/security/keys/trusted-keys/trusted_tee.c
+++ b/security/keys/trusted-keys/trusted_tee.c
@@ -219,7 +219,8 @@ static int trusted_tee_get_random(unsigned char *key, size_t key_len)
static int optee_ctx_match(struct tee_ioctl_version_data *ver, const void *data)
{
- if (ver->impl_id == TEE_IMPL_ID_OPTEE)
+ if (ver->impl_id == TEE_IMPL_ID_OPTEE &&
+ ver->gen_caps & TEE_GEN_CAP_REG_MEM)
return 1;
else
return 0;