feat(arm): retrieve GPT related data from platform
For RME-enabled platforms, initializing L0 and L1 tables and enabling
GPC checks is necessary. For systems using BL2 to load firmware images,
the GPT initialization has to be done in BL2 prior to the image load.
The common Arm platform code currently implements this in the
"arm_bl2_plat_gpt_setup" function, relying on the FVP platform's
specifications (PAS definitions, GPCCR_PPS, and GPCCR_PGS).
Different Arm platforms may have distinct PAS definitions, GPCCR_PPS,
GPCCR_PGS, L0/L1 base, and size. To accommodate these variations,
introduce the "plat_arm_get_gpt_info" API. Platforms must implement
this API to provide the necessary data for GPT setup on RME-enabled
platforms. It is essential to note that these additions are relevant to
platforms under the plat/arm hierarchy that will reuse the
"arm_bl2_plat_gpt_setup" function.
As a result of these new additions, migrate data related to the FVP
platform to its source and header files.
Signed-off-by: Rohit Mathew <Rohit.Mathew@arm.com>
Change-Id: I4f4c8894c1cda0adc1f83e7439eb372e923f6147
diff --git a/include/plat/arm/common/plat_arm.h b/include/plat/arm/common/plat_arm.h
index 0fb06a6..97f5446 100644
--- a/include/plat/arm/common/plat_arm.h
+++ b/include/plat/arm/common/plat_arm.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2023, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2024, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -13,6 +13,7 @@
#include <lib/bakery_lock.h>
#include <lib/cassert.h>
#include <lib/el3_runtime/cpu_data.h>
+#include <lib/gpt_rme/gpt_rme.h>
#include <lib/spinlock.h>
#include <lib/utils_def.h>
#include <lib/xlat_tables/xlat_tables_compat.h>
@@ -31,6 +32,17 @@
unsigned int nsaid_permissions;
} arm_tzc_regions_info_t;
+typedef struct arm_gpt_info {
+ pas_region_t *pas_region_base;
+ unsigned int pas_region_count;
+ uintptr_t l0_base;
+ uintptr_t l1_base;
+ size_t l0_size;
+ size_t l1_size;
+ gpccr_pps_e pps;
+ gpccr_pgs_e pgs;
+} arm_gpt_info_t;
+
/*******************************************************************************
* Default mapping definition of the TrustZone Controller for ARM standard
* platforms.
@@ -362,6 +374,8 @@
unsigned int plat_arm_calc_core_pos(u_register_t mpidr);
const mmap_region_t *plat_arm_get_mmap(void);
+const arm_gpt_info_t *plat_arm_get_gpt_info(void);
+
/* Allow platform to override psci_pm_ops during runtime */
const plat_psci_ops_t *plat_arm_psci_override_pm_ops(plat_psci_ops_t *ops);