Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 124 insertions, 0 deletions

diff --git a/plat/imx/imx8m/imx_hab.c b/plat/imx/imx8m/imx_hab.c
new file mode 100644
index 0000000..222046f
--- /dev/null
+++ b/plat/imx/imx8m/imx_hab.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright 2017-2020 NXP
+ * Copyright 2022 Leica Geosystems AG
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/runtime_svc.h>
+#include <imx_sip_svc.h>
+
+#define HAB_CID_ATF	U(2)	/* TF-A Caller ID */
+
+/* HAB Status definitions */
+enum hab_status {
+	HAB_STS_ANY = 0x00,	/* Match any status in report_event() */
+	HAB_FAILURE = 0x33,	/* Operation failed */
+	HAB_WARNING = 0x69,	/* Operation completed with warning */
+	HAB_SUCCESS = 0xf0	/* Operation completed successfully */
+};
+
+/* HAB Configuration definitions */
+enum hab_config {
+	HAB_CFG_RETURN = 0x33,	/* Field Return IC */
+	HAB_CFG_OPEN   = 0xf0,	/* Non-secure IC */
+	HAB_CFG_CLOSED = 0xcc	/* Secure IC */
+};
+
+/* HAB State definitions */
+enum hab_state {
+	HAB_STATE_INITIAL   = 0x33,	/* Initializing state (transitory) */
+	HAB_STATE_CHECK     = 0x55,	/* Check state (non-secure) */
+	HAB_STATE_NONSECURE = 0x66,	/* Non-secure state */
+	HAB_STATE_TRUSTED   = 0x99,	/* Trusted state */
+	HAB_STATE_SECURE    = 0xaa,	/* Secure state */
+	HAB_STATE_FAIL_SOFT = 0xcc,	/* Soft fail state */
+	HAB_STATE_FAIL_HARD = 0xff,	/* Hard fail state (terminal) */
+	HAB_STATE_NONE      = 0xf0	/* No security state machine */
+};
+
+/* HAB Verification Target definitions */
+enum hab_target {
+	HAB_TGT_MEMORY     = 0x0f,	/* Check memory allowed list */
+	HAB_TGT_PERIPHERAL = 0xf0,	/* Check peripheral allowed list */
+	HAB_TGT_ANY        = 0x55	/* Check memory & peripheral allowed list */
+};
+
+/* Authenticate Image Loader Callback prototype */
+typedef enum hab_status hab_loader_callback_f_t(void **, size_t *, const void *);
+
+/*
+ * HAB Rom VectorTable (RVT) structure.
+ * This table provides function pointers into the HAB library in ROM for
+ * use by post-ROM boot sequence components.
+ * Functions are ordered in the structure below based on the offsets in ROM
+ * image, and shall not be changed!
+ * Details on API allocation offsets and function description could be
+ * found in following documents from NXP:
+ * - High Assurance Boot Version 4 Application Programming Interface
+ *   Reference Manual (available in CST package)
+ * - HABv4 RVT Guidelines and Recommendations (AN12263)
+ */
+struct hab_rvt_api {
+	uint64_t	hdr;
+	enum hab_status (*entry)(void);
+	enum hab_status (*exit)(void);
+	enum hab_status (*check_target)(enum hab_target type, const void *start, size_t bytes);
+	void* (*authenticate_image)(uint8_t cid, long ivt_offset, void **start,
+		size_t *bytes, hab_loader_callback_f_t loader);
+	enum hab_status (*run_dcd)(const uint8_t *dcd);
+	enum hab_status (*run_csf)(const uint8_t *csf, uint8_t cid, uint32_t srkmask);
+	enum hab_status (*assert)(long type, const void *data, uint32_t count);
+	enum hab_status (*report_event)(enum hab_status status, uint32_t index,
+		uint8_t *event, size_t *bytes);
+	enum hab_status (*report_status)(enum hab_config *config, enum hab_state *state);
+	void (*failsafe)(void);
+	void* (*authenticate_image_no_dcd)(uint8_t cid, long ivt_offset, void **start,
+		size_t *bytes, hab_loader_callback_f_t loader);
+	uint32_t (*get_version)(void);
+	enum hab_status (*authenticate_container)(uint8_t cid, long ivt_offset, void **start,
+		size_t *bytes, hab_loader_callback_f_t loader, uint32_t srkmask, int skip_dcd);
+};
+
+struct hab_rvt_api *g_hab_rvt_api = (struct hab_rvt_api *)HAB_RVT_BASE;
+
+/*******************************************************************************
+ * Handler for servicing HAB SMC calls
+ ******************************************************************************/
+int imx_hab_handler(uint32_t smc_fid,
+			u_register_t x1,
+			u_register_t x2,
+			u_register_t x3,
+			u_register_t x4)
+{
+	switch (x1) {
+	case IMX_SIP_HAB_ENTRY:
+		return g_hab_rvt_api->entry();
+	case IMX_SIP_HAB_EXIT:
+		return g_hab_rvt_api->exit();
+	case IMX_SIP_HAB_CHECK_TARGET:
+		return g_hab_rvt_api->check_target((enum hab_target)x2,
+			(const void *)x3, (size_t)x4);
+	case IMX_SIP_HAB_AUTH_IMG:
+		return (unsigned long)g_hab_rvt_api->authenticate_image(HAB_CID_ATF,
+			x2, (void **)x3, (size_t *)x4, NULL);
+	case IMX_SIP_HAB_REPORT_EVENT:
+		return g_hab_rvt_api->report_event(HAB_FAILURE,
+			(uint32_t)x2, (uint8_t *)x3, (size_t *)x4);
+	case IMX_SIP_HAB_REPORT_STATUS:
+		return g_hab_rvt_api->report_status((enum hab_config *)x2,
+			(enum hab_state *)x3);
+	case IMX_SIP_HAB_FAILSAFE:
+		g_hab_rvt_api->failsafe();
+		break;
+	case IMX_SIP_HAB_AUTH_IMG_NO_DCD:
+		return (unsigned long)g_hab_rvt_api->authenticate_image_no_dcd(
+			HAB_CID_ATF, x2, (void **)x3, (size_t *)x4, NULL);
+	case IMX_SIP_HAB_GET_VERSION:
+		return g_hab_rvt_api->get_version();
+	default:
+		return SMC_UNK;
+	};
+
+	return SMC_OK;
+}