assets: abstract away the firmware assets used for booting

As there can be more than one source of firmware assets this
patch generalizes the notion of locating a particular asset.
struct asset is added along with some helper functions for
working on assets as a first class citizen.

Change-Id: I2ce575d1e5259aed4c34c3dcfd438abe9db1d7b9
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10264
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)

14 files changed, 272 insertions, 155 deletions

diff --git a/src/arch/arm64/arm_tf.c b/src/arch/arm64/arm_tf.c
index 3e0892ec34..29dc7c344f 100644
--- a/src/arch/arm64/arm_tf.c
+++ b/src/arch/arm64/arm_tf.c
@@ -45,10 +45,7 @@ void __attribute__((weak)) *soc_get_bl31_plat_params(bl31_params_t *params)
 
 void arm_tf_run_bl31(u64 payload_entry, u64 payload_arg0, u64 payload_spsr)
 {
-	struct prog bl31 = {
-		.type = PROG_BL31,
-		.name = CONFIG_CBFS_PREFIX"/bl31",
-	};
+	struct prog bl31 = PROG_INIT(ASSET_BL31, CONFIG_CBFS_PREFIX"/bl31");
 	void (*bl31_entry)(bl31_params_t *params, void *plat_params) = NULL;
 
 	if (prog_locate(&bl31))
diff --git a/src/arch/arm64/boot.c b/src/arch/arm64/boot.c
index 88d477c71f..b22f029e58 100644
--- a/src/arch/arm64/boot.c
+++ b/src/arch/arm64/boot.c
@@ -73,7 +73,7 @@ void arch_prog_run(struct prog *prog)
 	void (*doit)(void *);
 	void *arg;
 
-	if (ENV_RAMSTAGE && prog->type == PROG_PAYLOAD) {
+	if (ENV_RAMSTAGE && prog_type(prog) == ASSET_PAYLOAD) {
 		run_payload(prog);
 		return;
 	}
diff --git a/src/arch/x86/boot/boot.c b/src/arch/x86/boot/boot.c
index 0ff8a6c37f..d86a6c35b8 100644
--- a/src/arch/x86/boot/boot.c
+++ b/src/arch/x86/boot/boot.c
@@ -125,7 +125,7 @@ static void jmp_payload(void *entry, unsigned long buffer, unsigned long size)
 
 static void try_payload(struct prog *prog)
 {
-	if (prog->type == PROG_PAYLOAD) {
+	if (prog_type(prog) == ASSET_PAYLOAD) {
 		if (IS_ENABLED(CONFIG_RELOCATABLE_RAMSTAGE))
 			jmp_payload_no_bounce_buffer(prog_entry(prog));
 		else
diff --git a/src/include/assets.h b/src/include/assets.h
new file mode 100644
index 0000000000..9c757edc5e
--- /dev/null
+++ b/src/include/assets.h
@@ -0,0 +1,91 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+#ifndef ASSETS_H
+#define ASSETS_H
+
+#include <region.h>
+
+/* An asset represents data used to boot the system. It can be found within
+ * CBFS or some other mechanism. While CBFS can be a source of an asset, note
+ * that using the asset API implies querying of other sources. */
+
+enum asset_type {
+	ASSET_UNKNOWN,
+	ASSET_VERSTAGE,
+	ASSET_ROMSTAGE,
+	ASSET_RAMSTAGE,
+	ASSET_REFCODE,
+	ASSET_PAYLOAD,
+	ASSET_BL31,
+};
+
+struct asset {
+	enum asset_type type;
+	const char *name;
+	struct region_device rdev;
+};
+
+static inline const char *asset_name(const struct asset *asset)
+{
+	return asset->name;
+}
+
+static inline enum asset_type asset_type(const struct asset *asset)
+{
+	return asset->type;
+}
+
+static struct region_device *asset_rdev(struct asset *asset)
+{
+	return &asset->rdev;
+}
+
+static inline size_t asset_size(const struct asset *asset)
+{
+	return region_device_sz(&asset->rdev);
+}
+
+/* Returns NULL on error. */
+static inline void *asset_mmap(const struct asset *asset)
+{
+	return rdev_mmap_full(&asset->rdev);
+}
+
+#define ASSET_INIT(type_, name_)	\
+	{				\
+		.type = (type_),	\
+		.name = (name_),	\
+	}
+
+/* Locate the asset as described by the parameter. It will query all known
+ * asset providers. Returns 0 on success. < 0 on error. */
+int asset_locate(struct asset *asset);
+
+struct asset_provider {
+	const char *name;
+	/* Determines if the provider is the active one. If so returns 1 else 0
+	 * or < 0 on error. */
+	int (*is_active)(struct asset *asset);
+	/* Returns < 0 on error or 0 on success. This function locates
+	 * the rdev representing the file data associated with the passed in
+	 * prog. */
+	int (*locate)(struct asset *asset);
+};
+
+#endif /* ASSETS_H */
diff --git a/src/include/program_loading.h b/src/include/program_loading.h
index 7506c50f0f..d6da688831 100644
--- a/src/include/program_loading.h
+++ b/src/include/program_loading.h
@@ -22,7 +22,7 @@
 
 #include <stdint.h>
 #include <stddef.h>
-#include <region.h>
+#include <assets.h>
 
 enum {
 	/* Last segment of program. Can be used to take different actions for
@@ -34,40 +34,49 @@ enum {
  * set on the last segment loaded. */
 void arch_segment_loaded(uintptr_t start, size_t size, int flags);
 
-enum prog_type {
-	PROG_VERSTAGE,
-	PROG_ROMSTAGE,
-	PROG_RAMSTAGE,
-	PROG_REFCODE,
-	PROG_PAYLOAD,
-	PROG_BL31,
-};
-
 /* Representation of a program. */
 struct prog {
-	enum prog_type type;
-	const char *name;
-	/* Source of program content to load. After loading program it
-	 * represents the memory region of the stages and payload. For
-	 * architectures that use a bounce buffer then it would represent
-	 * the bounce buffer. */
-	struct region_device rdev;
+	/* The region_device within the asset is the source of program content
+	 * to load. After loading program it represents the memory region of
+	 * the stages and payload. For architectures that use a bounce buffer
+	 * then it would represent the bounce buffer. */
+	struct asset asset;
 	/* Entry to program with optional argument. It's up to the architecture
 	 * to decide if argument is passed. */
 	void (*entry)(void *);
 	void *arg;
 };
 
+#define PROG_INIT(type_, name_)				\
+	{						\
+		.asset = ASSET_INIT(type_, name_),	\
+	}
+
+static inline const char *prog_name(const struct prog *prog)
+{
+	return asset_name(&prog->asset);
+}
+
+static inline enum asset_type prog_type(const struct prog *prog)
+{
+	return asset_type(&prog->asset);
+}
+
+static inline struct region_device *prog_rdev(struct prog *prog)
+{
+	return asset_rdev(&prog->asset);
+}
+
 /* Only valid for loaded programs. */
 static inline size_t prog_size(const struct prog *prog)
 {
-	return region_device_sz(&prog->rdev);
+	return asset_size(&prog->asset);
 }
 
 /* Only valid for loaded programs. */
 static inline void *prog_start(const struct prog *prog)
 {
-	return rdev_mmap_full(&prog->rdev);
+	return asset_mmap(&prog->asset);
 }
 
 static inline void *prog_entry(const struct prog *prog)
@@ -86,7 +95,7 @@ extern const struct mem_region_device addrspace_32bit;
 static inline void prog_memory_init(struct prog *prog, uintptr_t ptr,
 					size_t size)
 {
-	rdev_chain(&prog->rdev, &addrspace_32bit.rdev, ptr, size);
+	rdev_chain(&prog->asset.rdev, &addrspace_32bit.rdev, ptr, size);
 }
 
 static inline void prog_set_area(struct prog *prog, void *start, size_t size)
@@ -101,7 +110,11 @@ static inline void prog_set_entry(struct prog *prog, void *e, void *arg)
 }
 
 /* Locate the identified program to run. Return 0 on success. < 0 on error. */
-int prog_locate(struct prog *prog);
+static inline int prog_locate(struct prog *prog)
+{
+	return asset_locate(&prog->asset);
+}
+
 /* Run the program described by prog. */
 void prog_run(struct prog *prog);
 /* Per architecture implementation running a program. */
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc
index ebb3076e63..557cd66846 100644
--- a/src/lib/Makefile.inc
+++ b/src/lib/Makefile.inc
@@ -18,6 +18,7 @@
 #
 subdirs-y += loaders
 
+bootblock-y += assets.c
 bootblock-y += prog_loaders.c
 bootblock-y += prog_ops.c
 bootblock-y += cbfs.c
@@ -36,6 +37,7 @@ bootblock-y += region.c
 bootblock-y += boot_device.c
 bootblock-y += fmap.c
 
+verstage-y += assets.c
 verstage-y += prog_loaders.c
 verstage-y += prog_ops.c
 verstage-y += delay.c
@@ -60,6 +62,7 @@ verstage-$(CONFIG_GENERIC_UDELAY) += timer.c
 verstage-$(CONFIG_GENERIC_GPIO_LIB) += gpio.c
 verstage-y += mem_pool.c
 
+romstage-y += assets.c
 romstage-y += prog_loaders.c
 romstage-y += prog_ops.c
 romstage-y += memchr.c
@@ -92,6 +95,7 @@ endif
 
 romstage-$(CONFIG_GENERIC_UDELAY) += timer.c
 
+ramstage-y += assets.c
 ramstage-y += prog_loaders.c
 ramstage-y += prog_ops.c
 ramstage-y += hardwaremain.c
diff --git a/src/lib/assets.c b/src/lib/assets.c
new file mode 100644
index 0000000000..656f0b1e2b
--- /dev/null
+++ b/src/lib/assets.c
@@ -0,0 +1,93 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+
+#include <assets.h>
+#include <boot_device.h>
+#include <cbfs.h>
+#include <console/console.h>
+#include <rules.h>
+#include <stdlib.h>
+
+#define DEFAULT_CBFS_PROVIDER_PRESENT \
+	(!ENV_VERSTAGE || (ENV_VERSTAGE && !CONFIG_RETURN_FROM_VERSTAGE))
+
+#if DEFAULT_CBFS_PROVIDER_PRESENT
+static int cbfs_boot_asset_locate(struct asset *asset)
+{
+	return cbfs_boot_locate(&asset->rdev, asset->name, NULL);
+}
+
+static const struct asset_provider cbfs_default_provider = {
+	.name = "CBFS",
+	.locate = cbfs_boot_asset_locate,
+};
+#endif
+
+extern const struct asset_provider vboot_provider;
+
+static const struct asset_provider *providers[] = {
+#if CONFIG_VBOOT_VERIFY_FIRMWARE
+	&vboot_provider,
+#endif
+#if DEFAULT_CBFS_PROVIDER_PRESENT
+	&cbfs_default_provider,
+#endif
+};
+
+int asset_locate(struct asset *asset)
+{
+	int i;
+
+	boot_device_init();
+
+	for (i = 0; i < ARRAY_SIZE(providers); i++) {
+		/* Default provider state is active. */
+		int ret = 1;
+		const struct asset_provider *ops;
+
+		ops = providers[i];
+
+		if (ops->is_active != NULL)
+			ret = ops->is_active(asset);
+
+		if (ret == 0) {
+			printk(BIOS_DEBUG, "%s provider inactive.\n",
+				ops->name);
+			continue;
+		} else if (ret < 0) {
+			printk(BIOS_DEBUG, "%s provider failure.\n",
+				ops->name);
+			continue;
+		}
+
+		printk(BIOS_DEBUG, "%s provider active.\n", ops->name);
+
+		if (ops->locate(asset))
+			continue;
+
+		printk(BIOS_DEBUG, "'%s' located at offset: %zx size: %zx\n",
+			asset->name, region_device_offset(&asset->rdev),
+			region_device_sz(&asset->rdev));
+
+		return 0;
+	}
+
+	return -1;
+}
diff --git a/src/lib/cbfs.c b/src/lib/cbfs.c
index 23dfee70c9..3e83765bf3 100644
--- a/src/lib/cbfs.c
+++ b/src/lib/cbfs.c
@@ -188,12 +188,10 @@ void *cbfs_boot_map_optionrom(uint16_t vendor, uint16_t device)
 
 void *cbfs_boot_load_stage_by_name(const char *name)
 {
-	struct prog stage = {
-		.name = name,
-	};
+	struct prog stage = PROG_INIT(ASSET_UNKNOWN, name);
 	uint32_t type = CBFS_TYPE_STAGE;
 
-	if (cbfs_boot_locate(&stage.rdev, name, &type))
+	if (cbfs_boot_locate(&stage.asset.rdev, name, &type))
 		return NULL;
 
 	if (cbfs_prog_stage_load(&stage))
@@ -209,7 +207,7 @@ int cbfs_prog_stage_load(struct prog *pstage)
 	void *entry;
 	size_t fsize;
 	size_t foffset;
-	const struct region_device *fh = &pstage->rdev;
+	const struct region_device *fh = &pstage->asset.rdev;
 
 	if (rdev_readat(fh, &stage, 0, sizeof(stage)) != sizeof(stage))
 		return 0;
diff --git a/src/lib/prog_loaders.c b/src/lib/prog_loaders.c
index 77999945d1..ec5eeb8693 100644
--- a/src/lib/prog_loaders.c
+++ b/src/lib/prog_loaders.c
@@ -20,7 +20,6 @@
 
 #include <stdlib.h>
 #include <arch/stages.h>
-#include <boot_device.h>
 #include <cbfs.h>
 #include <cbmem.h>
 #include <console/console.h>
@@ -38,83 +37,10 @@
 /* Only can represent up to 1 byte less than size_t. */
 const struct mem_region_device addrspace_32bit = MEM_REGION_DEV_INIT(0, ~0UL);
 
-#define DEFAULT_CBFS_LOADER_PRESENT \
-	(!ENV_VERSTAGE || (ENV_VERSTAGE && !CONFIG_RETURN_FROM_VERSTAGE))
-
-#if DEFAULT_CBFS_LOADER_PRESENT
-static int cbfs_boot_prog_locate(struct prog *prog)
-{
-	return cbfs_boot_locate(&prog->rdev, prog->name, NULL);
-}
-
-static const struct prog_loader_ops cbfs_default_loader = {
-	.locate = cbfs_boot_prog_locate,
-};
-#endif
-
-extern const struct prog_loader_ops vboot_loader;
-
-static const struct prog_loader_ops *loaders[] = {
-#if CONFIG_VBOOT_VERIFY_FIRMWARE
-	&vboot_loader,
-#endif
-#if DEFAULT_CBFS_LOADER_PRESENT
-	&cbfs_default_loader,
-#endif
-};
-
-int prog_locate(struct prog *prog)
-{
-	int i;
-
-	boot_device_init();
-
-	for (i = 0; i < ARRAY_SIZE(loaders); i++) {
-		/* Default loader state is active. */
-		int ret = 1;
-		const struct prog_loader_ops *ops;
-
-		ops = loaders[i];
-
-		if (ops->is_loader_active != NULL)
-			ret = ops->is_loader_active(prog);
-
-		if (ret == 0) {
-			printk(BIOS_DEBUG, "%s loader inactive.\n",
-				ops->name);
-			continue;
-		} else if (ret < 0) {
-			printk(BIOS_DEBUG, "%s loader failure.\n",
-				ops->name);
-			continue;
-		}
-
-		printk(BIOS_DEBUG, "%s loader active.\n", ops->name);
-
-		if (ops->locate(prog))
-			continue;
-
-		printk(BIOS_DEBUG, "'%s' located at offset: %zx size: %zx\n",
-			prog->name, region_device_offset(&prog->rdev),
-			region_device_sz(&prog->rdev));
-
-		return 0;
-	}
-
-	return -1;
-}
-
 void run_romstage(void)
 {
-	struct prog romstage = {
-		.name = CONFIG_CBFS_PREFIX "/romstage",
-		.type = PROG_ROMSTAGE,
-	};
-
-	/* The only time the default CBFS loader isn't present is during
-	 * VERSTAGE in which it returns back to the calling stage. */
-	if (!DEFAULT_CBFS_LOADER_PRESENT)
-		return;
+	struct prog romstage =
+		PROG_INIT(ASSET_ROMSTAGE, CONFIG_CBFS_PREFIX "/romstage");
 
 	if (prog_locate(&romstage))
 		goto fail;
@@ -166,10 +92,8 @@ static int load_relocatable_ramstage(struct prog *ramstage)
 
 void run_ramstage(void)
 {
-	struct prog ramstage = {
-		.name = CONFIG_CBFS_PREFIX "/ramstage",
-		.type = PROG_RAMSTAGE,
-	};
+	struct prog ramstage =
+		PROG_INIT(ASSET_RAMSTAGE, CONFIG_CBFS_PREFIX "/ramstage");
 
 	/* Only x86 systems currently take the same firmware path on resume. */
 	if (IS_ENABLED(CONFIG_ARCH_X86) && IS_ENABLED(CONFIG_EARLY_CBMEM_INIT))
@@ -197,10 +121,8 @@ fail:
 	die("Ramstage was not loaded!\n");
 }
 
-static struct prog global_payload = {
-	.name = CONFIG_CBFS_PREFIX "/payload",
-	.type = PROG_PAYLOAD,
-};
+static struct prog global_payload =
+	PROG_INIT(ASSET_PAYLOAD, CONFIG_CBFS_PREFIX "/payload");
 
 void __attribute__((weak)) mirror_payload(struct prog *payload)
 {
diff --git a/src/lib/rmodule.c b/src/lib/rmodule.c
index 35893d9d96..c17c7a5a2c 100644
--- a/src/lib/rmodule.c
+++ b/src/lib/rmodule.c
@@ -264,10 +264,10 @@ int rmodule_stage_load(struct rmod_stage_load *rsl)
 	void *rmod_loc;
 	struct region_device *fh;
 
-	if (rsl->prog == NULL || rsl->prog->name == NULL)
+	if (rsl->prog == NULL || prog_name(rsl->prog) == NULL)
 		return -1;
 
-	fh = &rsl->prog->rdev;
+	fh = prog_rdev(rsl->prog);
 
 	if (rdev_readat(fh, &stage, 0, sizeof(stage)) != sizeof(stage))
 		return -1;
@@ -284,7 +284,7 @@ int rmodule_stage_load(struct rmod_stage_load *rsl)
 	rmod_loc = &stage_region[rmodule_offset];
 
 	printk(BIOS_INFO, "Decompressing stage %s @ 0x%p (%d bytes)\n",
-	       rsl->prog->name, rmod_loc, stage.memlen);
+	       prog_name(rsl->prog), rmod_loc, stage.memlen);
 
 	if (stage.compression == CBFS_COMPRESS_NONE) {
 		if (rdev_readat(fh, rmod_loc, sizeof(stage), stage.len) !=
diff --git a/src/lib/selfboot.c b/src/lib/selfboot.c
index 3f8cc6fb18..94a75bef2e 100644
--- a/src/lib/selfboot.c
+++ b/src/lib/selfboot.c
@@ -454,7 +454,7 @@ void *selfload(struct prog *payload)
 	struct segment head;
 	void *data;
 
-	data = rdev_mmap_full(&payload->rdev);
+	data = rdev_mmap_full(prog_rdev(payload));
 
 	if (data == NULL)
 		return NULL;
@@ -469,7 +469,10 @@ void *selfload(struct prog *payload)
 
 	printk(BIOS_SPEW, "Loaded segments\n");
 
-	rdev_munmap(&payload->rdev, data);
+	rdev_munmap(prog_rdev(payload), data);
+
+	/* Update the payload's area with the bounce buffer information. */
+	prog_set_area(payload, (void *)(uintptr_t)bounce_buffer, bounce_size);
 
 	/* Update the payload's area with the bounce buffer information. */
 	prog_set_area(payload, (void *)(uintptr_t)bounce_buffer, bounce_size);
@@ -477,6 +480,6 @@ void *selfload(struct prog *payload)
 	return (void *)entry;
 
 out:
-	rdev_munmap(&payload->rdev, data);
+	rdev_munmap(prog_rdev(payload), data);
 	return NULL;
 }
diff --git a/src/soc/intel/baytrail/refcode.c b/src/soc/intel/baytrail/refcode.c
index 0c49a800a6..971ce60f9d 100644
--- a/src/soc/intel/baytrail/refcode.c
+++ b/src/soc/intel/baytrail/refcode.c
@@ -48,10 +48,8 @@ static efi_wrapper_entry_t load_refcode_from_cache(void)
 
 static efi_wrapper_entry_t load_reference_code(void)
 {
-	struct prog prog = {
-		.type = PROG_REFCODE,
-		.name = CONFIG_CBFS_PREFIX "/refcode",
-	};
+	struct prog prog =
+		PROG_INIT(ASSET_REFCODE, CONFIG_CBFS_PREFIX "/refcode");
 	struct rmod_stage_load refcode = {
 		.cbmem_id = CBMEM_ID_REFCODE,
 		.prog = &prog,
diff --git a/src/soc/intel/broadwell/refcode.c b/src/soc/intel/broadwell/refcode.c
index f1bc4cbb8d..a890e82952 100644
--- a/src/soc/intel/broadwell/refcode.c
+++ b/src/soc/intel/broadwell/refcode.c
@@ -45,10 +45,8 @@ static pei_wrapper_entry_t load_refcode_from_cache(void)
 
 static efi_wrapper_entry_t load_reference_code(void)
 {
-	struct prog prog = {
-		.type = PROG_REFCODE,
-		.name = CONFIG_CBFS_PREFIX "/refcode",
-	};
+	struct prog prog =
+		PROG_INIT(ASSET_REFCODE, CONFIG_CBFS_PREFIX "/refcode");
 	struct rmod_stage_load refcode = {
 		.cbmem_id = CBMEM_ID_REFCODE,
 		.prog = &prog,
diff --git a/src/vendorcode/google/chromeos/vboot2/vboot_loader.c b/src/vendorcode/google/chromeos/vboot2/vboot_loader.c
index 5248305a04..cbb5f89bc0 100644
--- a/src/vendorcode/google/chromeos/vboot2/vboot_loader.c
+++ b/src/vendorcode/google/chromeos/vboot2/vboot_loader.c
@@ -17,10 +17,10 @@
  * Foundation, Inc.
  */
 
+#include <assets.h>
 #include <cbfs.h>
 #include <cbmem.h>
 #include <console/console.h>
-#include <program_loading.h>
 #include <rmodule.h>
 #include <rules.h>
 #include <string.h>
@@ -79,7 +79,7 @@ static void init_vb2_working_data(void)
 	wd->buffer_size = work_size - wd->buffer_offset;
 }
 
-static int vboot_loader_active(struct prog *prog)
+static int vboot_active(struct asset *asset)
 {
 	struct vb2_working_data *wd;
 	int run_verification;
@@ -90,15 +90,15 @@ static int vboot_loader_active(struct prog *prog)
 		init_vb2_working_data();
 		verstage_main();
 	} else if (verstage_should_load()) {
-		struct prog verstage = {
-			.type = PROG_VERSTAGE,
-			.name = CONFIG_CBFS_PREFIX "/verstage",
-		};
+		struct prog verstage =
+			PROG_INIT(ASSET_VERSTAGE,
+				CONFIG_CBFS_PREFIX "/verstage");
 
 		printk(BIOS_DEBUG, "VBOOT: Loading verstage.\n");
 
 		/* load verstage from RO */
-		if (cbfs_boot_locate(&verstage.rdev, verstage.name, NULL) ||
+		if (cbfs_boot_locate(prog_rdev(&verstage),
+						prog_name(&verstage), NULL) ||
 		    cbfs_prog_stage_load(&verstage))
 			die("failed to load verstage");
 
@@ -126,24 +126,24 @@ static int vboot_loader_active(struct prog *prog)
 }
 
 static int vboot_locate_by_components(const struct region_device *fw_main,
-					struct prog *prog)
+					struct asset *asset)
 {
 	struct vboot_components *fw_info;
 	size_t metadata_sz;
 	size_t offset;
 	size_t size;
-	struct region_device *fw = &prog->rdev;
+	struct region_device *fw = asset_rdev(asset);
 	int fw_index = 0;
 
-	if (prog->type == PROG_ROMSTAGE)
+	if (asset_type(asset) == ASSET_ROMSTAGE)
 		fw_index = CONFIG_VBOOT_ROMSTAGE_INDEX;
-	else if (prog->type == PROG_RAMSTAGE)
+	else if (asset_type(asset) == ASSET_RAMSTAGE)
 		fw_index = CONFIG_VBOOT_RAMSTAGE_INDEX;
-	else if (prog->type == PROG_PAYLOAD)
+	else if (asset_type(asset) == ASSET_PAYLOAD)
 		fw_index = CONFIG_VBOOT_BOOT_LOADER_INDEX;
-	else if (prog->type == PROG_REFCODE)
+	else if (asset_type(asset) == ASSET_REFCODE)
 		fw_index = CONFIG_VBOOT_REFCODE_INDEX;
-	else if (prog->type == PROG_BL31)
+	else if (asset_type(asset) == ASSET_BL31)
 		fw_index = CONFIG_VBOOT_BL31_INDEX;
 	else
 		die("Invalid program type for vboot.");
@@ -177,7 +177,7 @@ static int vboot_locate_by_components(const struct region_device *fw_main,
 }
 
 static int vboot_locate_by_multi_cbfs(const struct region_device *fw_main,
-					struct prog *prog)
+					struct asset *asset)
 {
 	struct cbfsd cbfs;
 	struct region_device rdev;
@@ -192,21 +192,21 @@ static int vboot_locate_by_multi_cbfs(const struct region_device *fw_main,
 	cbfs.rdev = &rdev;
 	cbfs.align = props.align;
 
-	return cbfs_locate(&prog->rdev, &cbfs, prog->name, NULL);
+	return cbfs_locate(asset_rdev(asset), &cbfs, asset_name(asset), NULL);
 }
 
-static int vboot_prog_locate(const struct region_device *fw_main,
-				struct prog *prog)
+static int vboot_asset_locate(const struct region_device *fw_main,
+				struct asset *asset)
 {
 	if (IS_ENABLED(CONFIG_MULTIPLE_CBFS_INSTANCES))
-		return vboot_locate_by_multi_cbfs(fw_main, prog);
+		return vboot_locate_by_multi_cbfs(fw_main, asset);
 	else
-		return vboot_locate_by_components(fw_main, prog);
+		return vboot_locate_by_components(fw_main, asset);
 }
 
-/* This function is only called when vboot_loader_active() returns 1. That
+/* This function is only called when vboot_active() returns 1. That
  * means we are taking vboot paths. */
-static int vboot_locate(struct prog *prog)
+static int vboot_locate(struct asset *asset)
 {
 	struct vb2_working_data *wd;
 	struct region_device fw_main;
@@ -221,11 +221,11 @@ static int vboot_locate(struct prog *prog)
 	if (vb2_get_selected_region(wd, &fw_main))
 		die("failed to reference selected region\n");
 
-	return vboot_prog_locate(&fw_main, prog);
+	return vboot_asset_locate(&fw_main, asset);
 }
 
-const struct prog_loader_ops vboot_loader = {
+const struct asset_provider vboot_provider = {
 	.name = "VBOOT",
-	.is_loader_active = vboot_loader_active,
+	.is_active = vboot_active,
 	.locate = vboot_locate,
 };