Merge tag 'efi-next-03072025' of https://source.denx.de/u-boot/custodians/u-boot-tpm into next

Sughosh added EFI HTTP(s) support into our eficonfig application. Up to
now we could only enable that via our efidebug command. Users now get that
option on the eficonfig menu.

Javier implemented support for the EFI_PARTITION_INFO_PROTOCOL,
to provide cached partition information for GPT partition types.
The protocol describes legacy MBR partition types, but that's for backward
compatibility and not implemented by this series.
The protocol is needed by [0], an implementation of a UEFI based A/B boot
protocol for the root filesystem.

Paul added support for EFI_DEBUG_IMAGE_INFO_TABLE. This is part of the EFI
spec and is defining a debug protocol that Google currently uses to debug
their Generic Bootloader project [1][2], using EFI to load Android.
Heinrich contributed a test EFI application for it as well.
The efi_realloc() function he added will realloc any type of memory to
BootServicesData, but keeping in mind the new protocol is the only consumer
he will fix that on a followup patch.

Finally another round of smatch fixes from Andrew cleans up coding errors.

The CI https://source.denx.de/u-boot/custodians/u-boot-tpm/-/pipelines/26935
seems happy

[0] https://gitlab.com/CentOS/automotive/src/ukiboot
[1] https://lpc.events/event/18/contributions/1704/attachments/1550/3231/Android%20Generic%20Boot%20Loader.pdf
[2] https://source.android.com/docs/core/architecture/bootloader/generic-bootloader

5 files changed, 126 insertions, 0 deletions

diff --git a/include/efi_api.h b/include/efi_api.h
index eb61eafa028..77a05f752e5 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -238,6 +238,10 @@ enum efi_reset_type {
 	EFI_GUID(0xcce33c35, 0x74ac, 0x4087, 0xbc, 0xe7, \
 		 0x8b, 0x29, 0xb0, 0x2e, 0xeb, 0x27)
 
+#define EFI_DEBUG_IMAGE_INFO_TABLE_GUID \
+	EFI_GUID(0x49152e77, 0x1ada, 0x4764, 0xb7, 0xa2, \
+		 0x7a, 0xfe, 0xfe, 0xd9, 0x5e, 0x8b)
+
 struct efi_conformance_profiles_table {
 	u16 version;
 	u16 number_of_profiles;
@@ -259,6 +263,22 @@ struct efi_capsule_result_variable_header {
 	efi_status_t capsule_status;
 } __packed;
 
+/**
+ * struct efi_system_table_pointer - struct to store the pointer of system
+ * table.
+ * @signature: The signature of this struct.
+ * @efi_system_table_base: The physical address of System Table.
+ * @crc32: CRC32 checksum
+ *
+ * This struct is design for hardware debugger to search through memory to
+ * get the address of EFI System Table.
+ */
+struct efi_system_table_pointer {
+	u64 signature;
+	efi_physical_addr_t efi_system_table_base;
+	u32 crc32;
+};
+
 struct efi_memory_range {
 	efi_physical_addr_t	address;
 	u64			length;
@@ -558,6 +578,57 @@ struct efi_loaded_image {
 	efi_status_t (EFIAPI *unload)(efi_handle_t image_handle);
 };
 
+#define EFI_DEBUG_IMAGE_INFO_UPDATE_IN_PROGRESS 0x01
+#define EFI_DEBUG_IMAGE_INFO_TABLE_MODIFIED     0x02
+
+#define EFI_DEBUG_IMAGE_INFO_TYPE_NORMAL  0x01
+
+/**
+ * struct efi_debug_image_info_normal - Store Debug Information for normal
+ * image.
+ * @image_info_type: the type of image info.
+ * @loaded_image_protocol_instance: the pointer to struct efi_loaded_image.
+ * @image_handle: the EFI handle of the image.
+ *
+ * This struct is created by efi_load_image() and store the information
+ * for debugging an normal image.
+ */
+struct efi_debug_image_info_normal {
+	u32 image_info_type;
+	struct efi_loaded_image *loaded_image_protocol_instance;
+	efi_handle_t image_handle;
+};
+
+/**
+ * union efi_debug_image_info - The union to store a pointer for EFI
+ * DEBUG IMAGE INFO.
+ * @image_info_type: the type of the image_info if it is not a normal image.
+ * @normal_image: The pointer to a normal image.
+ *
+ * This union is for a pointer that can point to the struct of normal_image.
+ * Or it points to an image_info_type.
+ */
+union efi_debug_image_info {
+	u32 *image_info_type;
+	struct efi_debug_image_info_normal *normal_image;
+};
+
+/**
+ * struct efi_debug_image_info_table_header - store the array of
+ * struct efi_debug_image_info.
+ * @update_status: Status to notify this struct is ready to use or not.
+ * @table_size: The number of elements of efi_debug_image_info_table.
+ * @efi_debug_image_info_table: The array of efi_debug_image_info.
+ *
+ * This struct stores the array of efi_debug_image_info. The
+ * number of elements is table_size.
+ */
+struct efi_debug_image_info_table_header {
+	volatile u32 update_status;
+	u32 table_size;
+	union efi_debug_image_info *efi_debug_image_info_table;
+};
+
 #define EFI_DEVICE_PATH_PROTOCOL_GUID \
 	EFI_GUID(0x09576e91, 0x6d3f, 0x11d2, \
 		 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
diff --git a/include/efi_config.h b/include/efi_config.h
index d7c1601137e..23211e799fc 100644
--- a/include/efi_config.h
+++ b/include/efi_config.h
@@ -82,6 +82,7 @@ struct eficonfig_item {
  * @current_volume:	pointer to the efi_simple_file_system_protocol
  * @dp_volume:		pointer to device path of the selected device
  * @current_path:	pointer to the selected file path string
+ * @uri:		URI for HTTP Boot
  * @filepath_list:	list_head structure for file path list
  * @file_selectred:	flag indicates file selecting status
  */
@@ -89,6 +90,7 @@ struct eficonfig_select_file_info {
 	struct efi_simple_file_system_protocol *current_volume;
 	struct efi_device_path *dp_volume;
 	u16 *current_path;
+	u16 *uri;
 	struct list_head filepath_list;
 	bool file_selected;
 };
diff --git a/include/efi_loader.h b/include/efi_loader.h
index 8fd09aad2d0..3e70ac07055 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -312,6 +312,8 @@ extern const struct efi_hii_config_routing_protocol efi_hii_config_routing;
 extern const struct efi_hii_config_access_protocol efi_hii_config_access;
 extern const struct efi_hii_database_protocol efi_hii_database;
 extern const struct efi_hii_string_protocol efi_hii_string;
+/* structure for EFI_DEBUG_SUPPORT_PROTOCOL */
+extern struct efi_debug_image_info_table_header efi_m_debug_info_table_header;
 
 uint16_t *efi_dp_str(struct efi_device_path *dp);
 
@@ -643,6 +645,13 @@ efi_status_t efi_tcg2_measure_dtb(void *dtb);
 efi_status_t efi_root_node_register(void);
 /* Called by bootefi to initialize runtime */
 efi_status_t efi_initialize_system_table(void);
+/* Called by bootefi to initialize debug */
+efi_status_t efi_initialize_system_table_pointer(void);
+/* Called by efi_load_image for register debug info */
+efi_status_t efi_core_new_debug_image_info_entry(u32 image_info_type,
+						 struct efi_loaded_image *loaded_image,
+						 efi_handle_t image_handle);
+void efi_core_remove_debug_image_info_entry(efi_handle_t image_handle);
 /* efi_runtime_detach() - detach unimplemented runtime functions */
 void efi_runtime_detach(void);
 /* efi_convert_pointer() - convert pointer to virtual address */
@@ -871,6 +880,16 @@ efi_status_t efi_next_variable_name(efi_uintn_t *size, u16 **buf,
 #define efi_size_in_pages(size) (((size) + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT)
 /* Allocate boot service data pool memory */
 void *efi_alloc(size_t len);
+/**
+ * efi_realloc() - reallocate boot services data pool memory
+ *
+ * Reallocate memory from pool for a new size and copy the data from old one.
+ *
+ * @ptr:	pointer to the buffer
+ * @size:	number of bytes to allocate
+ * Return:	EFI status to indicate success or not
+ */
+efi_status_t efi_realloc(void **ptr, size_t len);
 /* Allocate pages on the specified alignment */
 void *efi_alloc_aligned_pages(u64 len, int memory_type, size_t align);
 /* More specific EFI memory allocator, called by EFI payloads */
diff --git a/include/part.h b/include/part.h
index 7075b2cb116..b3a3362b2af 100644
--- a/include/part.h
+++ b/include/part.h
@@ -647,6 +647,20 @@ int gpt_verify_partitions(struct blk_desc *desc,
  */
 int get_disk_guid(struct blk_desc *desc, char *guid);
 
+/**
+ * part_get_gpt_pte() - Get the GPT partition table entry of a partition
+ *
+ * This function reads the GPT partition table entry (PTE) for a given
+ * block device and partition number.
+ *
+ * @desc:	block device descriptor
+ * @part:	partition number for which to return the PTE
+ * @gpt_e:	GPT partition table entry
+ *
+ * Return:	0 on success, otherwise error
+ */
+int part_get_gpt_pte(struct blk_desc *desc, int part, gpt_entry *gpt_e);
+
 #endif
 
 #if CONFIG_IS_ENABLED(DOS_PARTITION)
diff --git a/include/part_efi.h b/include/part_efi.h
index 59b7895b8a2..fb402df6f13 100644
--- a/include/part_efi.h
+++ b/include/part_efi.h
@@ -138,4 +138,24 @@ typedef struct _legacy_mbr {
 	__le16 signature;
 } __packed legacy_mbr;
 
+#define EFI_PARTITION_INFO_PROTOCOL_GUID \
+	EFI_GUID(0x8cf2f62c, 0xbc9b, 0x4821, 0x80, \
+		 0x8d, 0xec, 0x9e, 0xc4, 0x21, 0xa1, 0xa0)
+
+#define EFI_PARTITION_INFO_PROTOCOL_REVISION 0x0001000
+#define PARTITION_TYPE_OTHER 0x00
+#define PARTITION_TYPE_MBR 0x01
+#define PARTITION_TYPE_GPT 0x02
+
+struct efi_partition_info {
+	u32 revision;
+	u32 type;
+	u8 system;
+	u8 reserved[7];
+	union {
+		struct partition mbr;
+		gpt_entry gpt;
+	} info;
+} __packed;
+
 #endif	/* _DISK_PART_EFI_H */