[PATCH 09/12] firmware: stratix10-svc: hash signature verification
From: tien . sung . ang
Date: Thu Jun 22 2023 - 23:22:49 EST
From: Ang Tien Sung <tien.sung.ang@xxxxxxxxx>
To support digital signature verification request with pre-calculated
hash.
Signed-off-by: Ang Tien Sung <tien.sung.ang@xxxxxxxxx>
---
drivers/firmware/stratix10-svc.c | 21 ++++++++
include/linux/firmware/intel/stratix10-smc.h | 48 +++++++++++++++++++
.../firmware/intel/stratix10-svc-client.h | 6 +++
3 files changed, 75 insertions(+)
diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c
index ccb8f314b624..12f0137c450e 100644
--- a/drivers/firmware/stratix10-svc.c
+++ b/drivers/firmware/stratix10-svc.c
@@ -336,6 +336,7 @@ static void svc_thread_recv_status_ok(struct stratix10_svc_data *p_data,
case COMMAND_FCS_CRYPTO_MAC_VERIFY_INIT:
case COMMAND_FCS_CRYPTO_ECDSA_HASH_SIGNING_INIT:
case COMMAND_FCS_CRYPTO_ECDSA_SHA2_DATA_SIGNING_INIT:
+ case COMMAND_FCS_CRYPTO_ECDSA_HASH_VERIFY_INIT:
cb_data->status = BIT(SVC_STATUS_OK);
break;
case COMMAND_RECONFIG_DATA_SUBMIT:
@@ -380,6 +381,7 @@ static void svc_thread_recv_status_ok(struct stratix10_svc_data *p_data,
case COMMAND_FCS_CRYPTO_ECDSA_HASH_SIGNING_FINALIZE:
case COMMAND_FCS_CRYPTO_ECDSA_SHA2_DATA_SIGNING_UPDATE:
case COMMAND_FCS_CRYPTO_ECDSA_SHA2_DATA_SIGNING_FINALIZE:
+ case COMMAND_FCS_CRYPTO_ECDSA_HASH_VERIFY_FINALIZE:
cb_data->status = BIT(SVC_STATUS_OK);
cb_data->kaddr2 = svc_pa_to_va(res.a2);
cb_data->kaddr3 = &res.a3;
@@ -705,6 +707,23 @@ 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_ECDSA_HASH_VERIFY_INIT:
+ a0 = INTEL_SIP_SMC_FCS_ECDSA_HASH_SIGNATURE_VERIFY_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_ECDSA_HASH_VERIFY_FINALIZE:
+ a0 = INTEL_SIP_SMC_FCS_ECDSA_HASH_SIGNATURE_VERIFY_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;
@@ -805,6 +824,8 @@ static int svc_normal_to_secure_thread(void *data)
case COMMAND_FCS_CRYPTO_ECDSA_SHA2_DATA_SIGNING_INIT:
case COMMAND_FCS_CRYPTO_ECDSA_SHA2_DATA_SIGNING_UPDATE:
case COMMAND_FCS_CRYPTO_ECDSA_SHA2_DATA_SIGNING_FINALIZE:
+ case COMMAND_FCS_CRYPTO_ECDSA_HASH_VERIFY_INIT:
+ case COMMAND_FCS_CRYPTO_ECDSA_HASH_VERIFY_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 3bd814916f3e..3a03bcb638bb 100644
--- a/include/linux/firmware/intel/stratix10-smc.h
+++ b/include/linux/firmware/intel/stratix10-smc.h
@@ -1080,4 +1080,52 @@ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FPGA_CONFIG_COMPLETED_WRITE)
#define INTEL_SIP_SMC_FUNCID_ECDSA_SHA2_DATA_SIGNING_FINALIZE 130
#define INTEL_SIP_SMC_FCS_ECDSA_SHA2_DATA_SIGNING_FINALIZE \
INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_ECDSA_SHA2_DATA_SIGNING_FINALIZE)
+/**
+ * Request INTEL_SIP_SMC_FCS_ECDSA_HASH_SIGNATURE_VERIFY_INIT
+ * Sync call to sends digital signature verify request with precalculated hash
+ *
+ * Call register usage:
+ * a0 INTEL_SIP_SMC_FCS_ECDSA_HASH_SIGNATURE_VERIFY_INIT
+ * a1 session ID
+ * a2 context ID
+ * a3 key UID
+ * a4 size of crypto parameter data
+ * a5 crypto parameter data
+ * 3:0 ECC algorithm
+ * 63:4 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_ECDSA_HASH_SIGNATURE_VERIFY_INIT 131
+#define INTEL_SIP_SMC_FCS_ECDSA_HASH_SIGNATURE_VERIFY_INIT \
+ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_ECDSA_HASH_SIGNATURE_VERIFY_INIT)
+
+/**
+ * Request INTEL_SIP_SMC_FCS_ECDSA_HASH_SIGNATURE_VERIFY_FINALIZE
+ * Sync call to sends digital signature verify request with precalculated hash
+ *
+ * a0 INTEL_SIP_SMC_FCS_ECDSA_HASH_SIGNATURE_VERIFY_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_ECDSA_HASH_SIGNATURE_VERIFY_FINALIZE 133
+#define INTEL_SIP_SMC_FCS_ECDSA_HASH_SIGNATURE_VERIFY_FINALIZE \
+ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FCS_ECDSA_HASH_SIGNATURE_VERIFY_FINALIZE)
#endif
diff --git a/include/linux/firmware/intel/stratix10-svc-client.h b/include/linux/firmware/intel/stratix10-svc-client.h
index 875e6e13632e..59de7a27d825 100644
--- a/include/linux/firmware/intel/stratix10-svc-client.h
+++ b/include/linux/firmware/intel/stratix10-svc-client.h
@@ -176,6 +176,10 @@ struct stratix10_svc_chan;
* send SHA2 digital signature signing request on a data blob,
* return status is SVC_STATUS_OK or SVC_STATUS_ERROR
*
+ * @COMMAND_FCS_CRYPTO_ECDSA_HASH_VERIFY (INIT and FINALIZE): send
+ * digital signature verify request with precalculated hash, return status is
+ * SVC_STATUS_OK or SVC_STATUS_ERROR
+ *
*/
enum stratix10_svc_command_code {
/* for FPGA */
@@ -223,6 +227,8 @@ enum stratix10_svc_command_code {
COMMAND_FCS_CRYPTO_ECDSA_SHA2_DATA_SIGNING_INIT,
COMMAND_FCS_CRYPTO_ECDSA_SHA2_DATA_SIGNING_UPDATE,
COMMAND_FCS_CRYPTO_ECDSA_SHA2_DATA_SIGNING_FINALIZE,
+ COMMAND_FCS_CRYPTO_ECDSA_HASH_VERIFY_INIT,
+ COMMAND_FCS_CRYPTO_ECDSA_HASH_VERIFY_FINALIZE,
/* Non-mailbox SMC Call */
COMMAND_SMC_SVC_VERSION = 200,
};
--
2.25.1