feat(drtm): add platform functions for DRTM
Added platform hooks to retrieve DRTM features and
address map.
Additionally, implemented these hooks for the FVP platform.
Signed-off-by: John Powell <john.powell@arm.com>
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: I5621cc9807ffff8139ae8876250147f7b2c76759
diff --git a/plat/arm/board/fvp/fvp_drtm_dma_prot.c b/plat/arm/board/fvp/fvp_drtm_dma_prot.c
index ec9cd7a..38ff7fe 100644
--- a/plat/arm/board/fvp/fvp_drtm_dma_prot.c
+++ b/plat/arm/board/fvp/fvp_drtm_dma_prot.c
@@ -58,3 +58,19 @@
*smmu_count_out = 0;
}
}
+
+/* DRTM DMA Protection Features */
+static const plat_drtm_dma_prot_features_t dma_prot_features = {
+ .max_num_mem_prot_regions = 0, /* No protection regions are present */
+ .dma_protection_support = 0x1 /* Complete DMA protection only */
+};
+
+const plat_drtm_dma_prot_features_t *plat_drtm_get_dma_prot_features(void)
+{
+ return &dma_prot_features;
+}
+
+uint64_t plat_drtm_dma_prot_get_max_table_bytes(void)
+{
+ return 0U;
+}
diff --git a/plat/arm/board/fvp/fvp_drtm_measurement.c b/plat/arm/board/fvp/fvp_drtm_measurement.c
new file mode 100644
index 0000000..4fbedd8
--- /dev/null
+++ b/plat/arm/board/fvp/fvp_drtm_measurement.c
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2022, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include <drivers/measured_boot/event_log/event_log.h>
+#include <plat/common/platform.h>
+
+#include <platform_def.h>
+
+/* DRTM TPM Features */
+static const plat_drtm_tpm_features_t tpm_features = {
+ /* No TPM-based hashing supported. */
+ .tpm_based_hash_support = false,
+
+ /* Set to decided algorithm by Event Log driver */
+ .firmware_hash_algorithm = TPM_ALG_ID
+
+};
+
+const plat_drtm_tpm_features_t *plat_drtm_get_tpm_features(void)
+{
+ return &tpm_features;
+}
diff --git a/plat/arm/board/fvp/fvp_drtm_stub.c b/plat/arm/board/fvp/fvp_drtm_stub.c
new file mode 100644
index 0000000..e2bc516
--- /dev/null
+++ b/plat/arm/board/fvp/fvp_drtm_stub.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2022, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+
+#include <stdint.h>
+
+#include <services/drtm_svc.h>
+
+/*
+ * This file contains DRTM platform functions which don't really do anything on
+ * FVP but are needed for DRTM to function.
+ */
+
+uint64_t plat_drtm_get_min_size_normal_world_dce(void)
+{
+ return 0ULL;
+}
+
+uint64_t plat_drtm_get_imp_def_dlme_region_size(void)
+{
+ return 0ULL;
+}
+
+uint64_t plat_drtm_get_tcb_hash_features(void)
+{
+ return 0ULL;
+}
+
+uint64_t plat_drtm_get_tcb_hash_table_size(void)
+{
+ return 0ULL;
+}
diff --git a/plat/arm/board/fvp/include/platform_def.h b/plat/arm/board/fvp/include/platform_def.h
index efe149a..1ef6c87 100644
--- a/plat/arm/board/fvp/include/platform_def.h
+++ b/plat/arm/board/fvp/include/platform_def.h
@@ -403,4 +403,14 @@
*/
#define PLAT_ARM_EVENT_LOG_MAX_SIZE UL(0x400)
+/*
+ * Maximum size of Event Log buffer used for DRTM
+ */
+#define PLAT_DRTM_EVENT_LOG_MAX_SIZE UL(0x300)
+
+/*
+ * Number of MMAP entries used by DRTM implementation
+ */
+#define PLAT_DRTM_MMAP_ENTRIES PLAT_ARM_MMAP_ENTRIES
+
#endif /* PLATFORM_DEF_H */
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index 4602276..eb2b5e5 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -415,6 +415,8 @@
ifeq (${DRTM_SUPPORT}, 1)
BL31_SOURCES += plat/arm/board/fvp/fvp_drtm_dma_prot.c \
+ plat/arm/board/fvp/fvp_drtm_measurement.c \
+ plat/arm/board/fvp/fvp_drtm_stub.c \
plat/arm/common/arm_dyn_cfg.c
endif
diff --git a/plat/arm/common/arm_common.c b/plat/arm/common/arm_common.c
index 946b732..fc68114 100644
--- a/plat/arm/common/arm_common.c
+++ b/plat/arm/common/arm_common.c
@@ -237,3 +237,7 @@
}
#endif
+const mmap_region_t *plat_get_addr_mmap(void)
+{
+ return plat_arm_mmap;
+}