Since wrapped keys are not part of the UFS specifications, it needs to be treated as a supported quirk of the UFS controller. This way, based on the quirk set during a host probe, UFS crypto can choose to register either standard or wrapped keys with block crypto profile. Signed-off-by: Gaurav Kashyap <quic_gaurkash@xxxxxxxxxxx> Tested-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> --- drivers/ufs/core/ufshcd-crypto.c | 24 ++++++++++++++++-------- include/ufs/ufshcd.h | 6 ++++++ 2 files changed, 22 insertions(+), 8 deletions(-) diff --git a/drivers/ufs/core/ufshcd-crypto.c b/drivers/ufs/core/ufshcd-crypto.c index 34537cbac622..399b55d67b3b 100644 --- a/drivers/ufs/core/ufshcd-crypto.c +++ b/drivers/ufs/core/ufshcd-crypto.c @@ -81,13 +81,15 @@ static int ufshcd_crypto_keyslot_program(struct blk_crypto_profile *profile, cfg.crypto_cap_idx = cap_idx; cfg.config_enable = UFS_CRYPTO_CONFIGURATION_ENABLE; - if (ccap_array[cap_idx].algorithm_id == UFS_CRYPTO_ALG_AES_XTS) { - /* In XTS mode, the blk_crypto_key's size is already doubled */ - memcpy(cfg.crypto_key, key->raw, key->size/2); - memcpy(cfg.crypto_key + UFS_CRYPTO_KEY_MAX_SIZE/2, - key->raw + key->size/2, key->size/2); - } else { - memcpy(cfg.crypto_key, key->raw, key->size); + if (key->crypto_cfg.key_type != BLK_CRYPTO_KEY_TYPE_HW_WRAPPED) { + if (ccap_array[cap_idx].algorithm_id == UFS_CRYPTO_ALG_AES_XTS) { + /* In XTS mode, the blk_crypto_key's size is already doubled */ + memcpy(cfg.crypto_key, key->raw, key->size / 2); + memcpy(cfg.crypto_key + UFS_CRYPTO_KEY_MAX_SIZE / 2, + key->raw + key->size / 2, key->size / 2); + } else { + memcpy(cfg.crypto_key, key->raw, key->size); + } } err = ufshcd_program_key(hba, key, &cfg, slot); @@ -191,7 +193,13 @@ int ufshcd_hba_init_crypto_capabilities(struct ufs_hba *hba) hba->crypto_profile.ll_ops = ufshcd_crypto_ops; /* UFS only supports 8 bytes for any DUN */ hba->crypto_profile.max_dun_bytes_supported = 8; - hba->crypto_profile.key_types_supported = BLK_CRYPTO_KEY_TYPE_STANDARD; + if (hba->quirks & UFSHCD_QUIRK_USES_WRAPPED_CRYPTO_KEYS) + hba->crypto_profile.key_types_supported = + BLK_CRYPTO_KEY_TYPE_HW_WRAPPED; + else + hba->crypto_profile.key_types_supported = + BLK_CRYPTO_KEY_TYPE_STANDARD; + hba->crypto_profile.dev = hba->dev; /* diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index 582d5a747e84..680c010a53d4 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -644,6 +644,12 @@ enum ufshcd_quirks { * thus need this quirk to skip related flow. */ UFSHCD_QUIRK_MCQ_BROKEN_RTC = 1 << 21, + + /* + * This quirk indicates that UFS will be using HW wrapped keys + * when using inline encryption. + */ + UFSHCD_QUIRK_USES_WRAPPED_CRYPTO_KEYS = 1 << 22, }; enum ufshcd_caps { -- 2.43.0