poplar: Add LOAD_IMAGE_V2 support

Signed-off-by: Victor Chong <victor.chong@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>

plat/hisilicon/poplar/bl1_plat_setup.c

@@ -38,23 +38,49 @@ meminfo_t *bl1_plat_sec_mem_layout(void)
 	return &bl1_tzram_layout;
 }
 
+#if LOAD_IMAGE_V2
+/*******************************************************************************
+ * Function that takes a memory layout into which BL2 has been loaded and
+ * populates a new memory layout for BL2 that ensures that BL1's data sections
+ * resident in secure RAM are not visible to BL2.
+ ******************************************************************************/
+void bl1_init_bl2_mem_layout(const meminfo_t *bl1_mem_layout,
+			     meminfo_t *bl2_mem_layout)
+{
+
+	assert(bl1_mem_layout != NULL);
+	assert(bl2_mem_layout != NULL);
+
+	/*
+	 * Cannot use default weak implementation in bl1main.c because
+	 * BL1 RW data is not at the top of bl1_mem_layout
+	 */
+	bl2_mem_layout->total_base = BL2_BASE;
+	bl2_mem_layout->total_size = BL32_LIMIT - BL2_BASE;
+
+	flush_dcache_range((unsigned long)bl2_mem_layout, sizeof(meminfo_t));
+}
+#endif /* LOAD_IMAGE_V2 */
+
 void bl1_early_platform_setup(void)
 {
 	/* Initialize the console to provide early debug support */
 	console_init(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ, PL011_BAUDRATE);
 
 	/* Allow BL1 to see the whole Trusted RAM */
-	bl1_tzram_layout.total_base = BL_MEM_BASE;
-	bl1_tzram_layout.total_size = BL_MEM_SIZE;
+	bl1_tzram_layout.total_base = BL1_RW_BASE;
+	bl1_tzram_layout.total_size = BL1_RW_SIZE;
 
+#if !LOAD_IMAGE_V2
 	/* Calculate how much RAM BL1 is using and how much remains free */
-	bl1_tzram_layout.free_base = BL_MEM_BASE;
-	bl1_tzram_layout.free_size = BL_MEM_SIZE;
+	bl1_tzram_layout.free_base = BL1_RW_BASE;
+	bl1_tzram_layout.free_size = BL1_RW_SIZE;
 
 	reserve_mem(&bl1_tzram_layout.free_base,
 		    &bl1_tzram_layout.free_size,
 		    BL1_RAM_BASE,
 		    BL1_RAM_LIMIT - BL1_RAM_BASE);
+#endif
 
 	INFO("BL1: 0x%lx - 0x%lx [size = %zu]\n", BL1_RAM_BASE, BL1_RAM_LIMIT,
 	     BL1_RAM_LIMIT - BL1_RAM_BASE);
@@ -64,7 +90,7 @@ void bl1_plat_arch_setup(void)
 {
 	plat_configure_mmu_el3(bl1_tzram_layout.total_base,
 			       bl1_tzram_layout.total_size,
-			       BL_MEM_BASE, /* l-loader and BL1 ROM */
+			       BL1_RO_BASE, /* l-loader and BL1 ROM */
 			       BL1_RO_LIMIT,
 			       BL1_COHERENT_RAM_BASE,
 			       BL1_COHERENT_RAM_LIMIT);

plat/hisilicon/poplar/bl2_plat_mem_params_desc.c

+/*
+ * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <bl_common.h>
+#include <desc_image_load.h>
+#include <platform.h>
+#include <platform_def.h>
+
+
+/*******************************************************************************
+ * Following descriptor provides BL image/ep information that gets used
+ * by BL2 to load the images and also subset of this information is
+ * passed to next BL image. The image loading sequence is managed by
+ * populating the images in required loading order. The image execution
+ * sequence is managed by populating the `next_handoff_image_id` with
+ * the next executable image id.
+ ******************************************************************************/
+static bl_mem_params_node_t bl2_mem_params_descs[] = {
+#ifdef SCP_BL2_BASE
+	/* Fill SCP_BL2 related information if it exists */
+	{
+	    .image_id = SCP_BL2_IMAGE_ID,
+
+	    SET_STATIC_PARAM_HEAD(ep_info, PARAM_IMAGE_BINARY,
+		    VERSION_2, entry_point_info_t, SECURE | NON_EXECUTABLE),
+
+	    SET_STATIC_PARAM_HEAD(image_info, PARAM_IMAGE_BINARY,
+		    VERSION_2, image_info_t, 0),
+	    .image_info.image_base = SCP_BL2_BASE,
+	    .image_info.image_max_size = SCP_BL2_SIZE,
+
+	    .next_handoff_image_id = INVALID_IMAGE_ID,
+	},
+#endif /* SCP_BL2_BASE */
+
+#ifdef EL3_PAYLOAD_BASE
+	/* Fill EL3 payload related information (BL31 is EL3 payload)*/
+	{
+	    .image_id = BL31_IMAGE_ID,
+
+	    SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP,
+		    VERSION_2, entry_point_info_t,
+		    SECURE | EXECUTABLE | EP_FIRST_EXE),
+	    .ep_info.pc = EL3_PAYLOAD_BASE,
+	    .ep_info.spsr = SPSR_64(MODE_EL3, MODE_SP_ELX,
+		    DISABLE_ALL_EXCEPTIONS),
+
+	    SET_STATIC_PARAM_HEAD(image_info, PARAM_EP,
+		    VERSION_2, image_info_t,
+		    IMAGE_ATTRIB_PLAT_SETUP | IMAGE_ATTRIB_SKIP_LOADING),
+
+	    .next_handoff_image_id = INVALID_IMAGE_ID,
+	},
+
+#else /* EL3_PAYLOAD_BASE */
+
+	/* Fill BL31 related information */
+	{
+	    .image_id = BL31_IMAGE_ID,
+
+	    SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP,
+		    VERSION_2, entry_point_info_t,
+		    SECURE | EXECUTABLE | EP_FIRST_EXE),
+	    .ep_info.pc = BL31_BASE,
+	    .ep_info.spsr = SPSR_64(MODE_EL3, MODE_SP_ELX,
+		    DISABLE_ALL_EXCEPTIONS),
+#if DEBUG
+	    .ep_info.args.arg1 = POPLAR_BL31_PLAT_PARAM_VAL,
+#endif
+
+	    SET_STATIC_PARAM_HEAD(image_info, PARAM_EP,
+		    VERSION_2, image_info_t, IMAGE_ATTRIB_PLAT_SETUP),
+	    .image_info.image_base = BL31_BASE,
+	    .image_info.image_max_size = BL31_LIMIT - BL31_BASE,
+
+# ifdef BL32_BASE
+	    .next_handoff_image_id = BL32_IMAGE_ID,
+# else
+	    .next_handoff_image_id = BL33_IMAGE_ID,
+# endif
+	},
+
+# ifdef BL32_BASE
+	/* Fill BL32 related information */
+	{
+	    .image_id = BL32_IMAGE_ID,
+
+	    SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP,
+		    VERSION_2, entry_point_info_t, SECURE | EXECUTABLE),
+	    .ep_info.pc = BL32_BASE,
+
+	    SET_STATIC_PARAM_HEAD(image_info, PARAM_EP,
+		    VERSION_2, image_info_t, 0),
+	    .image_info.image_base = BL32_BASE,
+	    .image_info.image_max_size = BL32_LIMIT - BL32_BASE,
+
+	    .next_handoff_image_id = BL33_IMAGE_ID,
+	},
+# endif /* BL32_BASE */
+
+	/* Fill BL33 related information */
+	{
+	    .image_id = BL33_IMAGE_ID,
+	    SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP,
+		    VERSION_2, entry_point_info_t, NON_SECURE | EXECUTABLE),
+# ifdef PRELOADED_BL33_BASE
+	    .ep_info.pc = PRELOADED_BL33_BASE,
+
+	    SET_STATIC_PARAM_HEAD(image_info, PARAM_EP,
+		    VERSION_2, image_info_t, IMAGE_ATTRIB_SKIP_LOADING),
+# else
+	    .ep_info.pc = PLAT_POPLAR_NS_IMAGE_OFFSET,
+
+	    SET_STATIC_PARAM_HEAD(image_info, PARAM_EP,
+		    VERSION_2, image_info_t, 0),
+	    .image_info.image_base = PLAT_POPLAR_NS_IMAGE_OFFSET,
+	    .image_info.image_max_size = DDR_BASE + DDR_SIZE -
+					PLAT_POPLAR_NS_IMAGE_OFFSET,
+# endif /* PRELOADED_BL33_BASE */
+
+	    .next_handoff_image_id = INVALID_IMAGE_ID,
+	}
+#endif /* EL3_PAYLOAD_BASE */
+};
+
+REGISTER_BL_IMAGE_DESCS(bl2_mem_params_descs)

plat/hisilicon/poplar/bl2_plat_setup.c

@@ -9,6 +9,7 @@
 #include <bl_common.h>
 #include <console.h>
 #include <debug.h>
+#include <desc_image_load.h>
 #include <dw_mmc.h>
 #include <emmc.h>
 #include <errno.h>
@@ -28,6 +29,15 @@
 #define BL2_COHERENT_RAM_BASE	(unsigned long)(&__COHERENT_RAM_START__)
 #define BL2_COHERENT_RAM_LIMIT	(unsigned long)(&__COHERENT_RAM_END__)
 
+static meminfo_t bl2_tzram_layout __aligned(CACHE_WRITEBACK_GRANULE);
+
+#if !LOAD_IMAGE_V2
+
+/*******************************************************************************
+ * This structure represents the superset of information that is passed to
+ * BL31, e.g. while passing control to it from BL2, bl31_params
+ * and other platform specific params
+ ******************************************************************************/
 typedef struct bl2_to_bl31_params_mem {
 	bl31_params_t		bl31_params;
 	image_info_t		bl31_image_info;
@@ -38,7 +48,6 @@ typedef struct bl2_to_bl31_params_mem {
 	entry_point_info_t	bl31_ep_info;
 } bl2_to_bl31_params_mem_t;
 
-static meminfo_t bl2_tzram_layout __aligned(CACHE_WRITEBACK_GRANULE);
 static bl2_to_bl31_params_mem_t bl31_params_mem;
 
 meminfo_t *bl2_plat_sec_mem_layout(void)
@@ -46,6 +55,134 @@ meminfo_t *bl2_plat_sec_mem_layout(void)
 	return &bl2_tzram_layout;
 }
 
+#ifdef SCP_BL2_BASE
+void bl2_plat_get_scp_bl2_meminfo(meminfo_t *scp_bl2_meminfo)
+{
+	/*
+	 * This platform has no SCP_BL2 yet
+	 */
+}
+#endif
+#endif /* LOAD_IMAGE_V2 */
+
+/*******************************************************************************
+ * Transfer SCP_BL2 from Trusted RAM using the SCP Download protocol.
+ * Return 0 on success, -1 otherwise.
+ ******************************************************************************/
+#if LOAD_IMAGE_V2
+int plat_poplar_bl2_handle_scp_bl2(image_info_t *scp_bl2_image_info)
+#else
+int bl2_plat_handle_scp_bl2(struct image_info *scp_bl2_image_info)
+#endif
+{
+	/*
+	 * This platform has no SCP_BL2 yet
+	 */
+	return 0;
+}
+
+/*******************************************************************************
+ * Gets SPSR for BL32 entry
+ ******************************************************************************/
+uint32_t poplar_get_spsr_for_bl32_entry(void)
+{
+	/*
+	 * The Secure Payload Dispatcher service is responsible for
+	 * setting the SPSR prior to entry into the BL3-2 image.
+	 */
+	return 0;
+}
+
+/*******************************************************************************
+ * Gets SPSR for BL33 entry
+ ******************************************************************************/
+#ifndef AARCH32
+uint32_t poplar_get_spsr_for_bl33_entry(void)
+{
+	unsigned long el_status;
+	unsigned int mode;
+	uint32_t spsr;
+
+	/* Figure out what mode we enter the non-secure world in */
+	el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
+	el_status &= ID_AA64PFR0_ELX_MASK;
+
+	mode = (el_status) ? MODE_EL2 : MODE_EL1;
+
+	/*
+	 * TODO: Consider the possibility of specifying the SPSR in
+	 * the FIP ToC and allowing the platform to have a say as
+	 * well.
+	 */
+	spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
+	return spsr;
+}
+#else
+uint32_t poplar_get_spsr_for_bl33_entry(void)
+{
+	unsigned int hyp_status, mode, spsr;
+
+	hyp_status = GET_VIRT_EXT(read_id_pfr1());
+
+	mode = (hyp_status) ? MODE32_hyp : MODE32_svc;
+
+	/*
+	 * TODO: Consider the possibility of specifying the SPSR in
+	 * the FIP ToC and allowing the platform to have a say as
+	 * well.
+	 */
+	spsr = SPSR_MODE32(mode, plat_get_ns_image_entrypoint() & 0x1,
+			SPSR_E_LITTLE, DISABLE_ALL_EXCEPTIONS);
+	return spsr;
+}
+#endif /* AARCH32 */
+
+#if LOAD_IMAGE_V2
+int poplar_bl2_handle_post_image_load(unsigned int image_id)
+{
+	int err = 0;
+	bl_mem_params_node_t *bl_mem_params = get_bl_mem_params_node(image_id);
+
+	assert(bl_mem_params);
+
+	switch (image_id) {
+#ifdef AARCH64
+	case BL32_IMAGE_ID:
+		bl_mem_params->ep_info.spsr = poplar_get_spsr_for_bl32_entry();
+		break;
+#endif
+
+	case BL33_IMAGE_ID:
+		/* BL33 expects to receive the primary CPU MPID (through r0) */
+		bl_mem_params->ep_info.args.arg0 = 0xffff & read_mpidr();
+		bl_mem_params->ep_info.spsr = poplar_get_spsr_for_bl33_entry();
+		break;
+
+#ifdef SCP_BL2_BASE
+	case SCP_BL2_IMAGE_ID:
+		/* The subsequent handling of SCP_BL2 is platform specific */
+		err = plat_poplar_bl2_handle_scp_bl2(&bl_mem_params->image_info);
+		if (err) {
+			WARN("Failure in platform-specific handling of SCP_BL2 image.\n");
+		}
+		break;
+#endif
+	}
+
+	return err;
+}
+
+/*******************************************************************************
+ * This function can be used by the platforms to update/use image
+ * information for given `image_id`.
+ ******************************************************************************/
+int bl2_plat_handle_post_image_load(unsigned int image_id)
+{
+	return poplar_bl2_handle_post_image_load(image_id);
+}
+
+#else /* LOAD_IMAGE_V2 */
+
 bl31_params_t *bl2_plat_get_bl31_params(void)
 {
 	bl31_params_t *bl2_to_bl31_params = NULL;
@@ -92,6 +229,10 @@ bl31_params_t *bl2_plat_get_bl31_params(void)
 
 struct entry_point_info *bl2_plat_get_bl31_ep_info(void)
 {
+#if DEBUG
+	bl31_params_mem.bl31_ep_info.args.arg1 = POPLAR_BL31_PLAT_PARAM_VAL;
+#endif
+
 	return &bl31_params_mem.bl31_ep_info;
 }
 
@@ -138,32 +279,11 @@ void bl2_plat_get_bl32_meminfo(meminfo_t *bl32_meminfo)
 }
 #endif /* BL32_BASE */
 
-static uint32_t hisi_get_spsr_for_bl33_entry(void)
-{
-	unsigned long el_status;
-	unsigned int mode;
-	uint32_t spsr;
-
-	/* Figure out what mode we enter the non-secure world in */
-	el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
-	el_status &= ID_AA64PFR0_ELX_MASK;
-
-	mode = (el_status) ? MODE_EL2 : MODE_EL1;
-
-	/*
-	 * TODO: Consider the possibility of specifying the SPSR in
-	 * the FIP ToC and allowing the platform to have a say as
-	 * well.
-	 */
-	spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
-	return spsr;
-}
-
 void bl2_plat_set_bl33_ep_info(image_info_t *image,
 			       entry_point_info_t *bl33_ep_info)
 {
 	SET_SECURITY_STATE(bl33_ep_info->h.attr, NON_SECURE);
-	bl33_ep_info->spsr = hisi_get_spsr_for_bl33_entry();
+	bl33_ep_info->spsr = poplar_get_spsr_for_bl33_entry();
 	bl33_ep_info->args.arg2 = image->image_size;
 }
 
@@ -180,6 +300,7 @@ void bl2_plat_get_bl33_meminfo(meminfo_t *bl33_meminfo)
 	bl33_meminfo->free_base  = DDR_BASE;
 	bl33_meminfo->free_size  = DDR_SIZE;
 }
+#endif /* LOAD_IMAGE_V2 */
 
 void bl2_early_platform_setup(meminfo_t *mem_layout)
 {
@@ -217,7 +338,11 @@ void bl2_platform_setup(void)
 {
 }
 
-unsigned long plat_get_ns_image_entrypoint(void)
+uintptr_t plat_get_ns_image_entrypoint(void)
 {
+#ifdef PRELOADED_BL33_BASE
+	return PRELOADED_BL33_BASE;
+#else
 	return PLAT_POPLAR_NS_IMAGE_OFFSET;
+#endif
 }

plat/hisilicon/poplar/bl31_plat_setup.c

@@ -59,14 +59,64 @@ entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
 		return NULL;
 }
 
+/*******************************************************************************
+ * Perform any BL31 early platform setup common to ARM standard platforms.
+ * Here is an opportunity to copy parameters passed by the calling EL (S-EL1
+ * in BL2 & S-EL3 in BL1) before they are lost (potentially). This needs to be
+ * done before the MMU is initialized so that the memory layout can be used
+ * while creating page tables. BL2 has flushed this information to memory, so
+ * we are guaranteed to pick up good data.
+ ******************************************************************************/
+#if LOAD_IMAGE_V2
+void bl31_early_platform_setup(void *from_bl2,
+			       void *plat_params_from_bl2)
+#else
 void bl31_early_platform_setup(bl31_params_t *from_bl2,
 			       void *plat_params_from_bl2)
+#endif
 {
 	console_init(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ, PL011_BAUDRATE);
 
 	/* Init console for crash report */
 	plat_crash_console_init();
 
+#if LOAD_IMAGE_V2
+		/*
+		 * Check params passed from BL2 should not be NULL,
+		 */
+		bl_params_t *params_from_bl2 = (bl_params_t *)from_bl2;
+
+		assert(params_from_bl2 != NULL);
+		assert(params_from_bl2->h.type == PARAM_BL_PARAMS);
+		assert(params_from_bl2->h.version >= VERSION_2);
+
+		bl_params_node_t *bl_params = params_from_bl2->head;
+
+		/*
+		 * Copy BL33 and BL32 (if present), entry point information.
+		 * They are stored in Secure RAM, in BL2's address space.
+		 */
+		while (bl_params) {
+			if (bl_params->image_id == BL32_IMAGE_ID)
+				bl32_image_ep_info = *bl_params->ep_info;
+
+			if (bl_params->image_id == BL33_IMAGE_ID)
+				bl33_image_ep_info = *bl_params->ep_info;
+
+			bl_params = bl_params->next_params_info;
+		}
+
+		if (bl33_image_ep_info.pc == 0)
+			panic();
+
+#else /* LOAD_IMAGE_V2 */
+
+	/*
+	 * Check params passed from BL2 should not be NULL,
+	 */
+	assert(params_from_bl2 != NULL);
+	assert(params_from_bl2->h.type == PARAM_BL31);
+	assert(params_from_bl2->h.version >= VERSION_1);
 
 	/*
 	 * Copy BL32 (if populated by BL2) and BL33 entry point information.
@@ -75,6 +125,7 @@ void bl31_early_platform_setup(bl31_params_t *from_bl2,
 	if (from_bl2->bl32_ep_info)
 		bl32_image_ep_info = *from_bl2->bl32_ep_info;
 	bl33_image_ep_info = *from_bl2->bl33_ep_info;
+#endif /* LOAD_IMAGE_V2 */
 }
 
 void bl31_platform_setup(void)
@@ -97,8 +148,8 @@ void bl31_plat_runtime_setup(void)
 
 void bl31_plat_arch_setup(void)
 {
-	plat_configure_mmu_el3(BL31_RO_BASE,
-			       (BL31_COHERENT_RAM_LIMIT - BL31_RO_BASE),
+	plat_configure_mmu_el3(BL31_BASE,
+			       (BL31_LIMIT - BL31_BASE),
 			       BL31_RO_BASE,
 			       BL31_RO_LIMIT,
 			       BL31_COHERENT_RAM_BASE,

plat/hisilicon/poplar/include/platform_def.h

@@ -16,6 +16,9 @@
 #include "hi3798cv200.h"
 #include "poplar_layout.h"		/* BL memory region sizes, etc */
 
+/* Special value used to verify platform parameters from BL2 to BL3-1 */
+#define POPLAR_BL31_PLAT_PARAM_VAL	0x0f1e2d3c4b5a6978ULL
+
 #define PLATFORM_LINKER_FORMAT		"elf64-littleaarch64"
 #define PLATFORM_LINKER_ARCH		aarch64
 
@@ -75,10 +78,6 @@
 #define DDR_SEC_SIZE			0x01000000
 #define DDR_SEC_BASE			0x03000000
 
-#define BL_MEM_BASE			(BL1_RO_BASE)
-#define BL_MEM_LIMIT			(BL31_LIMIT)
-#define BL_MEM_SIZE			(BL_MEM_LIMIT - BL_MEM_BASE)
-
 /*
  * BL3-2 specific defines.
  */

plat/hisilicon/poplar/include/poplar_layout.h

@@ -88,7 +88,7 @@
 #define BL1_RO_SIZE			0x00008000	/* page multiple */
 #define BL1_RW_SIZE			0x00008000	/* page multiple */
 #define BL1_SIZE			(BL1_RO_SIZE + BL1_RW_SIZE)
-#define BL2_SIZE			0x0000c000	/* page multiple */
+#define BL2_SIZE			0x0000d000	/* page multiple */
 #define BL31_SIZE			0x00014000
 #if !POPLAR_RECOVERY
 /*

plat/hisilicon/poplar/platform.mk

@@ -4,6 +4,9 @@
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
+# Enable version2 of image loading
+LOAD_IMAGE_V2	:=	1
+
 # On Poplar, the TSP can execute from TZC secure area in DRAM.
 POPLAR_TSP_RAM_LOCATION	:=	dram
 ifeq (${POPLAR_TSP_RAM_LOCATION}, dram)
@@ -80,7 +83,6 @@ BL1_SOURCES	+=							\
 		plat/hisilicon/poplar/bl1_plat_setup.c			\
 		plat/hisilicon/poplar/plat_storage.c
 
-
 BL2_SOURCES	+=      						\
 		drivers/arm/pl061/pl061_gpio.c				\
 		drivers/emmc/emmc.c					\
@@ -93,6 +95,12 @@ BL2_SOURCES	+=      						\
 		plat/hisilicon/poplar/bl2_plat_setup.c			\
 		plat/hisilicon/poplar/plat_storage.c
 
+ifeq (${LOAD_IMAGE_V2},1)
+BL2_SOURCES	+=							\
+		plat/hisilicon/poplar/bl2_plat_mem_params_desc.c	\
+		plat/hisilicon/poplar/poplar_image_load.c		\
+		common/desc_image_load.c
+endif
 
 BL31_SOURCES	+=							\
 		lib/cpus/aarch64/aem_generic.S				\

plat/hisilicon/poplar/poplar_image_load.c

+/*
+ * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <bl_common.h>
+#include <desc_image_load.h>
+#include <platform.h>
+
+/*******************************************************************************
+ * This function flushes the data structures so that they are visible
+ * in memory for the next BL image.
+ ******************************************************************************/
+void plat_flush_next_bl_params(void)
+{
+	flush_bl_params_desc();
+}
+
+/*******************************************************************************
+ * This function returns the list of loadable images.
+ ******************************************************************************/
+bl_load_info_t *plat_get_bl_image_load_info(void)
+{
+	return get_bl_load_info_from_mem_params_desc();
+}
+
+/*******************************************************************************
+ * This function returns the list of executable images.
+ ******************************************************************************/
+bl_params_t *plat_get_next_bl_params(void)
+{
+	return get_next_bl_params_from_mem_params_desc();
+}