[PATCH 05/12] firmware: stratix10-svc: SHA-2 digest

From: tien . sung . ang
Date: Thu Jun 22 2023 - 23:22:22 EST

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From: Ang Tien Sung <tien.sung.ang@xxxxxxxxx>

To support the request of a SHA-2 hash digest on a blob. If the input
has a key, the output shall be a key-hash digest. The whole
blob data could be split into multiple commands using the INIT,
UPDATE and FINALIZE commands.

Signed-off-by: Ang Tien Sung <tien.sung.ang@xxxxxxxxx>
---
drivers/firmware/stratix10-svc.c | 32 ++++++++
include/linux/firmware/intel/stratix10-smc.h | 76 +++++++++++++++++++
.../firmware/intel/stratix10-svc-client.h | 7 ++
3 files changed, 115 insertions(+)

diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c
index 37f188a1e927..24f727017756 100644
--- a/drivers/firmware/stratix10-svc.c
+++ b/drivers/firmware/stratix10-svc.c
@@ -332,6 +332,7 @@ static void svc_thread_recv_status_ok(struct stratix10_svc_data *p_data,
case COMMAND_FCS_CRYPTO_IMPORT_KEY:
case COMMAND_FCS_CRYPTO_REMOVE_KEY:
case COMMAND_FCS_CRYPTO_AES_CRYPT_INIT:
+ case COMMAND_FCS_CRYPTO_GET_DIGEST_INIT:
cb_data->status = BIT(SVC_STATUS_OK);
break;
case COMMAND_RECONFIG_DATA_SUBMIT:
@@ -369,6 +370,8 @@ static void svc_thread_recv_status_ok(struct stratix10_svc_data *p_data,
case COMMAND_FCS_CRYPTO_GET_KEY_INFO:
case COMMAND_FCS_CRYPTO_AES_CRYPT_UPDATE:
case COMMAND_FCS_CRYPTO_AES_CRYPT_FINALIZE:
+ case COMMAND_FCS_CRYPTO_GET_DIGEST_UPDATE:
+ case COMMAND_FCS_CRYPTO_GET_DIGEST_FINALIZE:
cb_data->status = BIT(SVC_STATUS_OK);
cb_data->kaddr2 = svc_pa_to_va(res.a2);
cb_data->kaddr3 = &res.a3;
@@ -596,6 +599,32 @@ static int svc_normal_to_secure_thread(void *data)
a5 = (unsigned long)pdata->paddr_output;
a6 = (unsigned long)pdata->size_output;
break;
+ case COMMAND_FCS_CRYPTO_GET_DIGEST_INIT:
+ a0 = INTEL_SIP_SMC_FCS_GET_DIGEST_INIT;
+ a1 = pdata->arg[0];
+ a2 = pdata->arg[1];
+ a3 = pdata->arg[2];
+ a4 = pdata->arg[3];
+ a5 = pdata->arg[4];
+ break;
+ case COMMAND_FCS_CRYPTO_GET_DIGEST_UPDATE:
+ a0 = INTEL_SIP_SMC_FCS_GET_DIGEST_UPDATE;
+ a1 = pdata->arg[0];
+ a2 = pdata->arg[1];
+ a3 = (unsigned long)pdata->paddr;
+ a4 = (unsigned long)pdata->size;
+ a5 = (unsigned long)pdata->paddr_output;
+ a6 = (unsigned long)pdata->size_output;
+ break;
+ case COMMAND_FCS_CRYPTO_GET_DIGEST_FINALIZE:
+ a0 = INTEL_SIP_SMC_FCS_GET_DIGEST_FINALIZE;
+ a1 = pdata->arg[0];
+ a2 = pdata->arg[1];
+ a3 = (unsigned long)pdata->paddr;
+ a4 = (unsigned long)pdata->size;
+ a5 = (unsigned long)pdata->paddr_output;
+ a6 = (unsigned long)pdata->size_output;
+ break;
/* for polling */
case COMMAND_POLL_SERVICE_STATUS:
a0 = INTEL_SIP_SMC_SERVICE_COMPLETED;
@@ -684,6 +713,9 @@ static int svc_normal_to_secure_thread(void *data)
case COMMAND_FCS_CRYPTO_AES_CRYPT_INIT:
case COMMAND_FCS_CRYPTO_AES_CRYPT_UPDATE:
case COMMAND_FCS_CRYPTO_AES_CRYPT_FINALIZE:
+ case COMMAND_FCS_CRYPTO_GET_DIGEST_INIT:
+ case COMMAND_FCS_CRYPTO_GET_DIGEST_UPDATE:
+ case COMMAND_FCS_CRYPTO_GET_DIGEST_FINALIZE:
cbdata->status = BIT(SVC_STATUS_INVALID_PARAM);
cbdata->kaddr1 = NULL;
cbdata->kaddr2 = NULL;
diff --git a/include/linux/firmware/intel/stratix10-smc.h b/include/linux/firmware/intel/stratix10-smc.h
index b2f2a7268a0c..47dbef588412 100644
--- a/include/linux/firmware/intel/stratix10-smc.h
+++ b/include/linux/firmware/intel/stratix10-smc.h
@@ -799,4 +799,80 @@ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FPGA_CONFIG_COMPLETED_WRITE)
#define INTEL_SIP_SMC_FUNCID_FCS_AES_CRYPTO_FINALIZE 118
#define INTEL_SIP_SMC_FCS_AES_CRYPTO_FINALIZE \
INTEL_SIP_SMC_STD_CALL_VAL(INTEL_SIP_SMC_FUNCID_FCS_AES_CRYPTO_FINALIZE)
+
+/**
+ * Request INTEL_SIP_SMC_FCS_GET_DIGEST_INIT
+ * Sync call to request the SHA-2 hash digest on a blob
+ *
+ * Call register usage:
+ * a0 INTEL_SIP_SMC_FCS_GET_DIGEST_INIT
+ * a1 session ID
+ * a2 context ID
+ * a3 key UID
+ * a4 size of crypto parameter data
+ * a5 the crypto parameter
+ * 3:0 SHA operation mode
+ * 7:4 digist size
+ * 63:8 not used
+ * a6-a7 not used
+ *
+ * Return status:
+ * a0 INTEL_SIP_SMC_STATUS_OK, INTEL_SIP_SMC_STATUS_NOT_SUPPORTED or
+ * INTEL_SIP_SMC_STATUS_ERROR
+ * a1 mailbox errors if a0 is INTEL_SIP_SMC_STATUS_ERROR
+ * a2-a3 not used
+ */
+#define INTEL_SIP_SMC_FUNCID_FCS_GET_DIGEST_INIT 119
+#define INTEL_SIP_SMC_FCS_GET_DIGEST_INIT \
+ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FCS_GET_DIGEST_INIT)
+
+/**
+ * Request INTEL_SIP_SMC_FCS_GET_DIGEST_UPDATE
+ * Sync call to request the SHA-2 hash digest on a blob
+ *
+ * Call register usage:
+ * a0 INTEL_SIP_SMC_FCS_GET_DIGEST_UPDATE
+ * a1 session ID
+ * a2 context ID
+ * a3 physical address of source
+ * a4 size of source
+ * a5 physical address of destination
+ * a6 size of destination
+ * a7 not used
+ *
+ * Return status:
+ * a0 INTEL_SIP_SMC_STATUS_OK, INTEL_SIP_SMC_STATUS_NOT_SUPPORTED or
+ * INTEL_SIP_SMC_STATUS_ERROR
+ * a1 mailbox errors if a0 is INTEL_SIP_SMC_STATUS_ERROR
+ * a2 physical address of response data
+ * a3 size of response data
+ */
+#define INTEL_SIP_SMC_FUNCID_FCS_GET_DIGEST_UPDATE 120
+#define INTEL_SIP_SMC_FCS_GET_DIGEST_UPDATE \
+ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FCS_GET_DIGEST_UPDATE)
+
+/**
+ * Request INTEL_SIP_SMC_FCS_GET_DIGEST_FINALIZE
+ * Sync call to request the SHA-2 hash digest on a blob
+ *
+ * Call register usage:
+ * a0 INTEL_SIP_SMC_FCS_GET_DIGEST_FINALIZE
+ * a1 session ID
+ * a2 context ID
+ * a3 physical address of source
+ * a4 size of source
+ * a5 physical address of destation
+ * a6 size of destation
+ * a7 not used
+ *
+ * Return status:
+ * a0 INTEL_SIP_SMC_STATUS_OK, INTEL_SIP_SMC_STATUS_NOT_SUPPORTED or
+ * INTEL_SIP_SMC_STATUS_ERROR
+ * a1 mailbox errors if a0 is INTEL_SIP_SMC_STATUS_ERROR
+ * a2 physical address of response data
+ * a3 size of response data
+ */
+#define INTEL_SIP_SMC_FUNCID_FCS_GET_DIGEST_FINALIZE 121
+#define INTEL_SIP_SMC_FCS_GET_DIGEST_FINALIZE \
+ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FCS_GET_DIGEST_FINALIZE)
#endif
diff --git a/include/linux/firmware/intel/stratix10-svc-client.h b/include/linux/firmware/intel/stratix10-svc-client.h
index bdcdc895993d..48c34def9ac6 100644
--- a/include/linux/firmware/intel/stratix10-svc-client.h
+++ b/include/linux/firmware/intel/stratix10-svc-client.h
@@ -160,6 +160,10 @@ struct stratix10_svc_chan;
* @COMMAND_FCS_CRYPTO_AES_CRYPT: sends request to encrypt or decrypt a
* data block, return status is SVC_STATUS_OK or SVC_STATUS_ERROR
*
+ * @COMMAND_FCS_CRYPTO_GET_DIGEST (INIT, UPDATE and FINALIZE): request
+ * the SHA-2 hash digest on a data block,
+ * return status is SVC_STATUS_OK or SVC_STATUS_ERROR
+ *
*
*/
enum stratix10_svc_command_code {
@@ -197,6 +201,9 @@ enum stratix10_svc_command_code {
COMMAND_FCS_CRYPTO_AES_CRYPT_INIT,
COMMAND_FCS_CRYPTO_AES_CRYPT_UPDATE,
COMMAND_FCS_CRYPTO_AES_CRYPT_FINALIZE,
+ COMMAND_FCS_CRYPTO_GET_DIGEST_INIT,
+ COMMAND_FCS_CRYPTO_GET_DIGEST_UPDATE,
+ COMMAND_FCS_CRYPTO_GET_DIGEST_FINALIZE,
/* Non-mailbox SMC Call */
COMMAND_SMC_SVC_VERSION = 200,
};
--
2.25.1

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