Merge tag 'efi-2022-04-rc1' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request for efi-2022-04-rc1

Documentation:

* Fix building HTML documentation of readthedocs.io
* Add ARM Juno board documentation
* Build requirements for Alpine Linux
* Include DM headers in API documentation

UEFI:

* Fix section alignment of EFI binaries
* Fix header length of RISC-V EFI binaries allowing to run them on EDK II
* Remove kaslr-seed from device tree if the EFI_RNG_PROTOCOL is provided

Other:

* Let 'part list' show all 128 GPT partitions

4 files changed, 54 insertions, 32 deletions

diff --git a/cmd/Makefile b/cmd/Makefile
index e31ac15ef7..6623d7eaa0 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -58,7 +58,7 @@ obj-$(CONFIG_CMD_EXTENSION) += extension_board.o
 obj-$(CONFIG_CMD_ECHO) += echo.o
 obj-$(CONFIG_ENV_IS_IN_EEPROM) += eeprom.o
 obj-$(CONFIG_CMD_EEPROM) += eeprom.o
-obj-$(CONFIG_EFI_STUB) += efi.o
+obj-$(CONFIG_EFI) += efi.o
 obj-$(CONFIG_CMD_EFIDEBUG) += efidebug.o
 obj-$(CONFIG_CMD_ELF) += elf.o
 obj-$(CONFIG_HUSH_PARSER) += exit.o
diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index 83eab0bd7f..3a8b2b6061 100644
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -310,6 +310,8 @@ efi_status_t efi_install_fdt(void *fdt)
 	/* Create memory reservations as indicated by the device tree */
 	efi_carve_out_dt_rsv(fdt);
 
+	efi_try_purge_kaslr_seed(fdt);
+
 	/* Install device tree as UEFI table */
 	ret = efi_install_configuration_table(&efi_guid_fdt, fdt);
 	if (ret != EFI_SUCCESS) {
diff --git a/cmd/efi.c b/cmd/efi.c
index f2ed26bd4b..c0384e0db2 100644
--- a/cmd/efi.c
+++ b/cmd/efi.c
@@ -13,6 +13,8 @@
 #include <sort.h>
 #include <asm/global_data.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 static const char *const type_name[] = {
 	"reserved",
 	"loader_code",
@@ -75,16 +77,17 @@ static int h_cmp_entry(const void *v1, const void *v2)
 /**
  * efi_build_mem_table() - make a sorted copy of the memory table
  *
- * @map:	Pointer to EFI memory map table
+ * @desc_base:	Pointer to EFI memory map table
  * @size:	Size of table in bytes
+ * @desc_size:	Size of each @desc_base record
  * @skip_bs:	True to skip boot-time memory and merge it with conventional
  *		memory. This will significantly reduce the number of table
  *		entries.
  * Return:	pointer to the new table. It should be freed with free() by the
  *		caller.
  */
-static void *efi_build_mem_table(struct efi_entry_memmap *map, int size,
-				 bool skip_bs)
+static void *efi_build_mem_table(struct efi_mem_desc *desc_base, int size,
+				 int desc_size, bool skip_bs)
 {
 	struct efi_mem_desc *desc, *end, *base, *dest, *prev;
 	int count;
@@ -95,15 +98,16 @@ static void *efi_build_mem_table(struct efi_entry_memmap *map, int size,
 		debug("%s: Cannot allocate %#x bytes\n", __func__, size);
 		return NULL;
 	}
-	end = (struct efi_mem_desc *)((ulong)map + size);
-	count = ((ulong)end - (ulong)map->desc) / map->desc_size;
-	memcpy(base, map->desc, (ulong)end - (ulong)map->desc);
-	qsort(base, count, map->desc_size, h_cmp_entry);
+	end = (void *)desc_base + size;
+	count = ((ulong)end - (ulong)desc_base) / desc_size;
+	memcpy(base, desc_base, (ulong)end - (ulong)desc_base);
+	qsort(base, count, desc_size, h_cmp_entry);
 	prev = NULL;
 	addr = 0;
 	dest = base;
-	end = (struct efi_mem_desc *)((ulong)base + count * map->desc_size);
-	for (desc = base; desc < end; desc = efi_get_next_mem_desc(map, desc)) {
+	end = (struct efi_mem_desc *)((ulong)base + count * desc_size);
+	for (desc = base; desc < end;
+	     desc = efi_get_next_mem_desc(desc, desc_size)) {
 		bool merge = true;
 		u32 type = desc->type;
 
@@ -116,7 +120,7 @@ static void *efi_build_mem_table(struct efi_entry_memmap *map, int size,
 		if (skip_bs && is_boot_services(desc->type))
 			type = EFI_CONVENTIONAL_MEMORY;
 
-		memcpy(dest, desc, map->desc_size);
+		memcpy(dest, desc, desc_size);
 		dest->type = type;
 		if (!skip_bs || !prev)
 			merge = false;
@@ -131,7 +135,7 @@ static void *efi_build_mem_table(struct efi_entry_memmap *map, int size,
 			prev->num_pages += desc->num_pages;
 		} else {
 			prev = dest;
-			dest = efi_get_next_mem_desc(map, dest);
+			dest = efi_get_next_mem_desc(dest, desc_size);
 		}
 		addr = desc->physical_start + (desc->num_pages <<
 				EFI_PAGE_SHIFT);
@@ -143,8 +147,8 @@ static void *efi_build_mem_table(struct efi_entry_memmap *map, int size,
 	return base;
 }
 
-static void efi_print_mem_table(struct efi_entry_memmap *map,
-				struct efi_mem_desc *desc, bool skip_bs)
+static void efi_print_mem_table(struct efi_mem_desc *desc, int desc_size,
+				bool skip_bs)
 {
 	u64 attr_seen[ATTR_SEEN_MAX];
 	int attr_seen_count;
@@ -158,7 +162,7 @@ static void efi_print_mem_table(struct efi_entry_memmap *map,
 	attr_seen_count = 0;
 	addr = 0;
 	for (upto = 0; desc->type != EFI_MAX_MEMORY_TYPE;
-	     upto++, desc = efi_get_next_mem_desc(map, desc)) {
+	     upto++, desc = efi_get_next_mem_desc(desc, desc_size)) {
 		const char *name;
 		u64 size;
 
@@ -215,37 +219,53 @@ static void efi_print_mem_table(struct efi_entry_memmap *map,
 static int do_efi_mem(struct cmd_tbl *cmdtp, int flag, int argc,
 		      char *const argv[])
 {
-	struct efi_mem_desc *desc;
-	struct efi_entry_memmap *map;
+	struct efi_mem_desc *orig, *desc;
+	uint version, key;
+	int desc_size;
 	int size, ret;
 	bool skip_bs;
 
 	skip_bs = !argc || *argv[0] != 'a';
-	ret = efi_info_get(EFIET_MEMORY_MAP, (void **)&map, &size);
-	switch (ret) {
-	case -ENOENT:
-		printf("No EFI table available\n");
-		goto done;
-	case -EPROTONOSUPPORT:
-		printf("Incorrect EFI table version\n");
-		goto done;
+	if (IS_ENABLED(CONFIG_EFI_APP)) {
+		ret = efi_get_mmap(&orig, &size, &key, &desc_size, &version);
+		if (ret) {
+			printf("Cannot read memory map (err=%d)\n", ret);
+			return CMD_RET_FAILURE;
+		}
+	} else {
+		struct efi_entry_memmap *map;
+
+		ret = efi_info_get(EFIET_MEMORY_MAP, (void **)&map, &size);
+		switch (ret) {
+		case -ENOENT:
+			printf("No EFI table available\n");
+			goto done;
+		case -EPROTONOSUPPORT:
+			printf("Incorrect EFI table version\n");
+			goto done;
+		}
+		orig = map->desc;
+		desc_size = map->desc_size;
+		version = map->version;
 	}
-	printf("EFI table at %lx, memory map %p, size %x, version %x, descr. size %#x\n",
-	       gd->arch.table, map, size, map->version, map->desc_size);
-	if (map->version != EFI_MEM_DESC_VERSION) {
+	printf("EFI table at %lx, memory map %p, size %x, key %x, version %x, descr. size %#x\n",
+	       gd->arch.table, orig, size, key, version, desc_size);
+	if (version != EFI_MEM_DESC_VERSION) {
 		printf("Incorrect memory map version\n");
 		ret = -EPROTONOSUPPORT;
 		goto done;
 	}
 
-	desc = efi_build_mem_table(map, size, skip_bs);
+	desc = efi_build_mem_table(orig, size, desc_size, skip_bs);
 	if (!desc) {
 		ret = -ENOMEM;
 		goto done;
 	}
 
-	efi_print_mem_table(map, desc, skip_bs);
+	efi_print_mem_table(desc, desc_size, skip_bs);
 	free(desc);
+	if (IS_ENABLED(CONFIG_EFI_APP))
+		free(orig);
 done:
 	if (ret)
 		printf("Error: %d\n", ret);
diff --git a/cmd/part.c b/cmd/part.c
index e0463b5a54..9d419c967c 100644
--- a/cmd/part.c
+++ b/cmd/part.c
@@ -89,10 +89,10 @@ static int do_part_list(int argc, char *const argv[])
 
 	if (var != NULL) {
 		int p;
-		char str[512] = { '\0', };
+		char str[3 * MAX_SEARCH_PARTITIONS] = { '\0', };
 		struct disk_partition info;
 
-		for (p = 1; p < MAX_SEARCH_PARTITIONS; p++) {
+		for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) {
 			char t[5];
 			int r = part_get_info(desc, p, &info);