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https://github.com/AsahiLinux/u-boot
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efi: Add start-up library code
When running as an EFI application, U-Boot must request memory from EFI, and provide access to the boot services U-Boot needs. Add library code to perform these tasks. This includes efi_main() which is the entry point from EFI. U-Boot is built as a shared library. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
parent
8f3b9694b2
commit
867a6ac86d
10 changed files with 887 additions and 64 deletions
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@ -8,6 +8,8 @@
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#ifndef __FSP_HOB_H__
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#define __FSP_HOB_H__
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#include <efi.h>
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/* Type of HOB Header */
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#define HOB_TYPE_MEM_ALLOC 0x0002
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#define HOB_TYPE_RES_DESC 0x0003
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@ -25,63 +27,6 @@ struct hob_header {
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u32 reserved; /* always zero */
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};
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/* Enumeration of memory types introduced in UEFI */
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enum efi_mem_type {
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EFI_RESERVED_MEMORY_TYPE,
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/*
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* The code portions of a loaded application.
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* (Note that UEFI OS loaders are UEFI applications.)
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*/
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EFI_LOADER_CODE,
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/*
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* The data portions of a loaded application and
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* the default data allocation type used by an application
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* to allocate pool memory.
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*/
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EFI_LOADER_DATA,
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/* The code portions of a loaded Boot Services Driver */
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EFI_BOOT_SERVICES_CODE,
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/*
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* The data portions of a loaded Boot Serves Driver and
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* the default data allocation type used by a Boot Services
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* Driver to allocate pool memory.
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*/
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EFI_BOOT_SERVICES_DATA,
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/* The code portions of a loaded Runtime Services Driver */
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EFI_RUNTIME_SERVICES_CODE,
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/*
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* The data portions of a loaded Runtime Services Driver and
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* the default data allocation type used by a Runtime Services
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* Driver to allocate pool memory.
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*/
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EFI_RUNTIME_SERVICES_DATA,
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/* Free (unallocated) memory */
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EFI_CONVENTIONAL_MEMORY,
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/* Memory in which errors have been detected */
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EFI_UNUSABLE_MEMORY,
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/* Memory that holds the ACPI tables */
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EFI_ACPI_RECLAIM_MEMORY,
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/* Address space reserved for use by the firmware */
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EFI_ACPI_MEMORY_NVS,
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/*
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* Used by system firmware to request that a memory-mapped IO region
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* be mapped by the OS to a virtual address so it can be accessed by
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* EFI runtime services.
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*/
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EFI_MMAP_IO,
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/*
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* System memory-mapped IO region that is used to translate
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* memory cycles to IO cycles by the processor.
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*/
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EFI_MMAP_IO_PORT,
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/*
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* Address space reserved by the firmware for code that is
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* part of the processor.
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*/
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EFI_PAL_CODE,
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EFI_MAX_MEMORY_TYPE
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};
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/*
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* Describes all memory ranges used during the HOB producer phase that
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* exist outside the HOB list. This HOB type describes how memory is used,
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356
include/efi.h
Normal file
356
include/efi.h
Normal file
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@ -0,0 +1,356 @@
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/*
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* Extensible Firmware Interface
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* Based on 'Extensible Firmware Interface Specification' version 0.9,
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* April 30, 1999
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*
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* Copyright (C) 1999 VA Linux Systems
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* Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
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* Copyright (C) 1999, 2002-2003 Hewlett-Packard Co.
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* David Mosberger-Tang <davidm@hpl.hp.com>
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* Stephane Eranian <eranian@hpl.hp.com>
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*
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* From include/linux/efi.h in kernel 4.1 with some additions/subtractions
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*/
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#ifndef _EFI_H
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#define _EFI_H
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#include <linux/string.h>
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#include <linux/types.h>
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struct efi_device_path;
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#define EFI_SUCCESS 0
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#define EFI_LOAD_ERROR (1 | (1UL << (BITS_PER_LONG - 1)))
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#define EFI_INVALID_PARAMETER (2 | (1UL << (BITS_PER_LONG - 1)))
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#define EFI_UNSUPPORTED (3 | (1UL << (BITS_PER_LONG - 1)))
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#define EFI_BAD_BUFFER_SIZE (4 | (1UL << (BITS_PER_LONG - 1)))
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#define EFI_BUFFER_TOO_SMALL (5 | (1UL << (BITS_PER_LONG - 1)))
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#define EFI_NOT_READY (6 | (1UL << (BITS_PER_LONG - 1)))
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#define EFI_DEVICE_ERROR (7 | (1UL << (BITS_PER_LONG - 1)))
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#define EFI_WRITE_PROTECTED (8 | (1UL << (BITS_PER_LONG - 1)))
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#define EFI_OUT_OF_RESOURCES (9 | (1UL << (BITS_PER_LONG - 1)))
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#define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG - 1)))
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#define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG - 1)))
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typedef unsigned long efi_status_t;
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typedef u64 efi_physical_addr_t;
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typedef u64 efi_virtual_addr_t;
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typedef void *efi_handle_t;
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#define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
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((efi_guid_t) \
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{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, \
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((a) >> 24) & 0xff, \
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(b) & 0xff, ((b) >> 8) & 0xff, \
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(c) & 0xff, ((c) >> 8) & 0xff, \
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(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } })
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/* Generic EFI table header */
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struct efi_table_hdr {
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u64 signature;
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u32 revision;
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u32 headersize;
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u32 crc32;
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u32 reserved;
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};
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/* Enumeration of memory types introduced in UEFI */
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enum efi_mem_type {
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EFI_RESERVED_MEMORY_TYPE,
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/*
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* The code portions of a loaded application.
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* (Note that UEFI OS loaders are UEFI applications.)
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*/
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EFI_LOADER_CODE,
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/*
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* The data portions of a loaded application and
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* the default data allocation type used by an application
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* to allocate pool memory.
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*/
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EFI_LOADER_DATA,
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/* The code portions of a loaded Boot Services Driver */
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EFI_BOOT_SERVICES_CODE,
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/*
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* The data portions of a loaded Boot Serves Driver and
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* the default data allocation type used by a Boot Services
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* Driver to allocate pool memory.
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*/
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EFI_BOOT_SERVICES_DATA,
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/* The code portions of a loaded Runtime Services Driver */
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EFI_RUNTIME_SERVICES_CODE,
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/*
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* The data portions of a loaded Runtime Services Driver and
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* the default data allocation type used by a Runtime Services
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* Driver to allocate pool memory.
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*/
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EFI_RUNTIME_SERVICES_DATA,
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/* Free (unallocated) memory */
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EFI_CONVENTIONAL_MEMORY,
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/* Memory in which errors have been detected */
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EFI_UNUSABLE_MEMORY,
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/* Memory that holds the ACPI tables */
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EFI_ACPI_RECLAIM_MEMORY,
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/* Address space reserved for use by the firmware */
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EFI_ACPI_MEMORY_NVS,
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/*
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* Used by system firmware to request that a memory-mapped IO region
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* be mapped by the OS to a virtual address so it can be accessed by
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* EFI runtime services.
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*/
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EFI_MMAP_IO,
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/*
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* System memory-mapped IO region that is used to translate
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* memory cycles to IO cycles by the processor.
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*/
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EFI_MMAP_IO_PORT,
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/*
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* Address space reserved by the firmware for code that is
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* part of the processor.
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*/
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EFI_PAL_CODE,
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EFI_MAX_MEMORY_TYPE,
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EFI_TABLE_END, /* For efi_build_mem_table() */
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};
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/* Attribute values */
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enum {
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EFI_MEMORY_UC_SHIFT = 0, /* uncached */
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EFI_MEMORY_WC_SHIFT = 1, /* write-coalescing */
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EFI_MEMORY_WT_SHIFT = 2, /* write-through */
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EFI_MEMORY_WB_SHIFT = 3, /* write-back */
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EFI_MEMORY_UCE_SHIFT = 4, /* uncached, exported */
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EFI_MEMORY_WP_SHIFT = 12, /* write-protect */
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EFI_MEMORY_RP_SHIFT = 13, /* read-protect */
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EFI_MEMORY_XP_SHIFT = 14, /* execute-protect */
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EFI_MEMORY_RUNTIME_SHIFT = 63, /* range requires runtime mapping */
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EFI_MEMORY_RUNTIME = 1ULL << EFI_MEMORY_RUNTIME_SHIFT,
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EFI_MEM_DESC_VERSION = 1,
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};
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#define EFI_PAGE_SHIFT 12
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#define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT)
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struct efi_mem_desc {
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u32 type;
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u32 reserved;
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efi_physical_addr_t physical_start;
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efi_virtual_addr_t virtual_start;
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u64 num_pages;
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u64 attribute;
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};
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/* Allocation types for calls to boottime->allocate_pages*/
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#define EFI_ALLOCATE_ANY_PAGES 0
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#define EFI_ALLOCATE_MAX_ADDRESS 1
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#define EFI_ALLOCATE_ADDRESS 2
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#define EFI_MAX_ALLOCATE_TYPE 3
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/* Types and defines for Time Services */
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#define EFI_TIME_ADJUST_DAYLIGHT 0x1
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#define EFI_TIME_IN_DAYLIGHT 0x2
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#define EFI_UNSPECIFIED_TIMEZONE 0x07ff
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struct efi_time {
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u16 year;
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u8 month;
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u8 day;
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u8 hour;
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u8 minute;
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u8 second;
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u8 pad1;
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u32 nanosecond;
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s16 timezone;
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u8 daylight;
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u8 pad2;
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};
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struct efi_time_cap {
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u32 resolution;
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u32 accuracy;
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u8 sets_to_zero;
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};
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enum efi_locate_search_type {
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all_handles,
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by_register_notify,
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by_protocol
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};
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struct efi_open_protocol_info_entry {
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efi_handle_t agent_handle;
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efi_handle_t controller_handle;
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u32 attributes;
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u32 open_count;
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};
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enum efi_entry_t {
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EFIET_END, /* Signals this is the last (empty) entry */
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EFIET_MEMORY_MAP,
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/* Number of entries */
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EFIET_MEMORY_COUNT,
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};
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#define EFI_TABLE_VERSION 1
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/**
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* struct efi_info_hdr - Header for the EFI info table
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*
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* @version: EFI_TABLE_VERSION
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* @hdr_size: Size of this struct in bytes
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* @total_size: Total size of this header plus following data
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* @spare: Spare space for expansion
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*/
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struct efi_info_hdr {
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u32 version;
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u32 hdr_size;
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u32 total_size;
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u32 spare[5];
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};
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/**
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* struct efi_entry_hdr - Header for a table entry
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*
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* @type: enum eft_entry_t
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* @size size of entry bytes excluding header and padding
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* @addr: address of this entry (0 if it follows the header )
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* @link: size of entry including header and padding
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* @spare1: Spare space for expansion
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* @spare2: Spare space for expansion
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*/
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struct efi_entry_hdr {
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u32 type;
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u32 size;
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u64 addr;
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u32 link;
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u32 spare1;
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u64 spare2;
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};
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/**
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* struct efi_entry_memmap - a memory map table passed to U-Boot
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*
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* @version: EFI's memory map table version
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* @desc_size: EFI's size of each memory descriptor
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* @spare: Spare space for expansion
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* @desc: An array of descriptors, each @desc_size bytes apart
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*/
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struct efi_entry_memmap {
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u32 version;
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u32 desc_size;
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u64 spare;
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struct efi_mem_desc desc[];
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};
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static inline struct efi_mem_desc *efi_get_next_mem_desc(
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struct efi_entry_memmap *map, struct efi_mem_desc *desc)
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{
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return (struct efi_mem_desc *)((ulong)desc + map->desc_size);
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}
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struct efi_priv {
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efi_handle_t parent_image;
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struct efi_device_path *device_path;
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struct efi_system_table *sys_table;
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struct efi_boot_services *boot;
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struct efi_runtime_services *run;
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bool use_pool_for_malloc;
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unsigned long ram_base;
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unsigned int image_data_type;
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struct efi_info_hdr *info;
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unsigned int info_size;
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void *next_hdr;
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};
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/* Base address of the EFI image */
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extern char image_base[];
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/**
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* efi_get_sys_table() - Get access to the main EFI system table
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*
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* @return pointer to EFI system table
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*/
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struct efi_system_table *efi_get_sys_table(void);
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/**
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* efi_get_ram_base() - Find the base of RAM
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*
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* This is used when U-Boot is built as an EFI application.
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*
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* @return the base of RAM as known to U-Boot
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*/
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unsigned long efi_get_ram_base(void);
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/**
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* efi_init() - Set up ready for use of EFI boot services
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*
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* @priv: Pointer to our private EFI structure to fill in
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* @banner: Banner to display when starting
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* @image: The image handle passed to efi_main()
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* @sys_table: The EFI system table pointer passed to efi_main()
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*/
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int efi_init(struct efi_priv *priv, const char *banner, efi_handle_t image,
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struct efi_system_table *sys_table);
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/**
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* efi_malloc() - Allocate some memory from EFI
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*
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* @priv: Pointer to private EFI structure
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* @size: Number of bytes to allocate
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* @retp: Return EFI status result
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* @return pointer to memory allocated, or NULL on error
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*/
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void *efi_malloc(struct efi_priv *priv, int size, efi_status_t *retp);
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/**
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* efi_free() - Free memory allocated from EFI
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*
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* @priv: Pointer to private EFI structure
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* @ptr: Pointer to memory to free
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*/
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void efi_free(struct efi_priv *priv, void *ptr);
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/**
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* efi_puts() - Write out a string to the EFI console
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*
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* @priv: Pointer to private EFI structure
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* @str: String to write (note this is a ASCII, not unicode)
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*/
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void efi_puts(struct efi_priv *priv, const char *str);
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/**
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* efi_putc() - Write out a character to the EFI console
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*
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* @priv: Pointer to private EFI structure
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* @ch: Character to write (note this is not unicode)
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*/
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void efi_putc(struct efi_priv *priv, const char ch);
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/**
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* efi_info_get() - get an entry from an EFI table
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*
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* @type: Entry type to search for
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* @datap: Returns pointer to entry data
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* @sizep: Returns pointer to entry size
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* @return 0 if OK, -ENODATA if there is no table, -ENOENT if there is no entry
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* of the requested type, -EPROTONOSUPPORT if the table has the wrong version
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*/
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int efi_info_get(enum efi_entry_t type, void **datap, int *sizep);
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/**
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* efi_build_mem_table() - make a sorted copy of the memory table
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*
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* @map: Pointer to EFI memory map table
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* @size: Size of table in bytes
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* @skip_bs: True to skip boot-time memory and merge it with conventional
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* memory. This will significantly reduce the number of table
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* entries.
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* @return pointer to the new table. It should be freed with free() by the
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* caller
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*/
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void *efi_build_mem_table(struct efi_entry_memmap *map, int size, bool skip_bs);
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#endif /* _LINUX_EFI_H */
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244
include/efi_api.h
Normal file
244
include/efi_api.h
Normal file
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@ -0,0 +1,244 @@
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/*
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* Extensible Firmware Interface
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* Based on 'Extensible Firmware Interface Specification' version 0.9,
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* April 30, 1999
|
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*
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* Copyright (C) 1999 VA Linux Systems
|
||||
* Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
|
||||
* Copyright (C) 1999, 2002-2003 Hewlett-Packard Co.
|
||||
* David Mosberger-Tang <davidm@hpl.hp.com>
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||||
* Stephane Eranian <eranian@hpl.hp.com>
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*
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* From include/linux/efi.h in kernel 4.1 with some additions/subtractions
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*/
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#ifndef _EFI_API_H
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#define _EFI_API_H
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#include <efi.h>
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/* EFI Boot Services table */
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struct efi_boot_services {
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struct efi_table_hdr hdr;
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void *raise_tpl;
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void *restore_tpl;
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efi_status_t (EFIAPI *allocate_pages)(int, int, unsigned long,
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efi_physical_addr_t *);
|
||||
efi_status_t (EFIAPI *free_pages)(efi_physical_addr_t, unsigned long);
|
||||
efi_status_t (EFIAPI *get_memory_map)(unsigned long *memory_map_size,
|
||||
struct efi_mem_desc *desc, unsigned long *key,
|
||||
unsigned long *desc_size, u32 *desc_version);
|
||||
efi_status_t (EFIAPI *allocate_pool)(int, unsigned long, void **);
|
||||
efi_status_t (EFIAPI *free_pool)(void *);
|
||||
|
||||
void *create_event;
|
||||
void *set_timer;
|
||||
efi_status_t(EFIAPI *wait_for_event)(unsigned long number_of_events,
|
||||
void *event, unsigned long *index);
|
||||
void *signal_event;
|
||||
void *close_event;
|
||||
void *check_event;
|
||||
|
||||
void *install_protocol_interface;
|
||||
void *reinstall_protocol_interface;
|
||||
void *uninstall_protocol_interface;
|
||||
efi_status_t (EFIAPI *handle_protocol)(efi_handle_t, efi_guid_t *,
|
||||
void **);
|
||||
void *reserved;
|
||||
void *register_protocol_notify;
|
||||
efi_status_t (EFIAPI *locate_handle)(
|
||||
enum efi_locate_search_type search_type,
|
||||
efi_guid_t *protocol, void *search_key,
|
||||
unsigned long *buffer_size, efi_handle_t *buffer);
|
||||
efi_status_t (EFIAPI *locate_device_path)(efi_guid_t *protocol,
|
||||
struct efi_device_path **device_path,
|
||||
efi_handle_t *device);
|
||||
void *install_configuration_table;
|
||||
|
||||
efi_status_t (EFIAPI *load_image)(bool boot_policiy,
|
||||
efi_handle_t parent_image,
|
||||
struct efi_device_path *file_path, void *source_buffer,
|
||||
unsigned long source_size, efi_handle_t *image);
|
||||
efi_status_t (EFIAPI *start_image)(efi_handle_t handle,
|
||||
unsigned long *exitdata_size,
|
||||
s16 **exitdata);
|
||||
efi_status_t (EFIAPI *exit)(efi_handle_t handle,
|
||||
efi_status_t exit_status,
|
||||
unsigned long exitdata_size, s16 *exitdata);
|
||||
void *unload_image;
|
||||
efi_status_t (EFIAPI *exit_boot_services)(efi_handle_t, unsigned long);
|
||||
|
||||
efi_status_t (EFIAPI *get_next_monotonic_count)(u64 *count);
|
||||
efi_status_t (EFIAPI *stall)(unsigned long usecs);
|
||||
void *set_watchdog_timer;
|
||||
efi_status_t(EFIAPI *connect_controller)(efi_handle_t controller_handle,
|
||||
efi_handle_t *driver_image_handle,
|
||||
struct efi_device_path *remaining_device_path,
|
||||
bool recursive);
|
||||
void *disconnect_controller;
|
||||
#define EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL 0x00000001
|
||||
#define EFI_OPEN_PROTOCOL_GET_PROTOCOL 0x00000002
|
||||
#define EFI_OPEN_PROTOCOL_TEST_PROTOCOL 0x00000004
|
||||
#define EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER 0x00000008
|
||||
#define EFI_OPEN_PROTOCOL_BY_DRIVER 0x00000010
|
||||
#define EFI_OPEN_PROTOCOL_EXCLUSIVE 0x00000020
|
||||
efi_status_t (EFIAPI *open_protocol)(efi_handle_t handle,
|
||||
efi_guid_t *protocol, void **interface,
|
||||
efi_handle_t agent_handle,
|
||||
efi_handle_t controller_handle, u32 attributes);
|
||||
void *close_protocol;
|
||||
efi_status_t(EFIAPI *open_protocol_information)(efi_handle_t handle,
|
||||
efi_guid_t *protocol,
|
||||
struct efi_open_protocol_info_entry **entry_buffer,
|
||||
unsigned long *entry_count);
|
||||
efi_status_t (EFIAPI *protocols_per_handle)(efi_handle_t handle,
|
||||
efi_guid_t ***protocol_buffer,
|
||||
unsigned long *protocols_buffer_count);
|
||||
efi_status_t (EFIAPI *locate_handle_buffer) (
|
||||
enum efi_locate_search_type search_type,
|
||||
efi_guid_t *protocol, void *search_key,
|
||||
unsigned long *no_handles, efi_handle_t **buffer);
|
||||
void *locate_protocol;
|
||||
void *install_multiple_protocol_interfaces;
|
||||
void *uninstall_multiple_protocol_interfaces;
|
||||
void *calculate_crc32;
|
||||
void *copy_mem;
|
||||
void *set_mem;
|
||||
void *create_event_ex;
|
||||
};
|
||||
|
||||
/* Types and defines for EFI ResetSystem */
|
||||
enum efi_reset_type {
|
||||
EFI_RESET_COLD = 0,
|
||||
EFI_RESET_WARM = 1,
|
||||
EFI_RESET_SHUTDOWN = 2
|
||||
};
|
||||
|
||||
/* EFI Runtime Services table */
|
||||
#define EFI_RUNTIME_SERVICES_SIGNATURE 0x5652453544e5552ULL
|
||||
#define EFI_RUNTIME_SERVICES_REVISION 0x00010000
|
||||
|
||||
struct efi_runtime_services {
|
||||
struct efi_table_hdr hdr;
|
||||
void *get_time;
|
||||
void *set_time;
|
||||
void *get_wakeup_time;
|
||||
void *set_wakeup_time;
|
||||
void *set_virtual_address_map;
|
||||
void *convert_pointer;
|
||||
efi_status_t (EFIAPI *get_variable)(s16 *variable_name,
|
||||
efi_guid_t *vendor, u32 *attributes,
|
||||
unsigned long *data_size, void *data);
|
||||
efi_status_t (EFIAPI *get_next_variable)(
|
||||
unsigned long *variable_name_size,
|
||||
s16 *variable_name, efi_guid_t *vendor);
|
||||
efi_status_t (EFIAPI *set_variable)(s16 *variable_name,
|
||||
efi_guid_t *vendor, u32 attributes,
|
||||
unsigned long data_size, void *data);
|
||||
void *get_next_high_mono_count;
|
||||
void (EFIAPI *reset_system)(enum efi_reset_type reset_type,
|
||||
efi_status_t reset_status,
|
||||
unsigned long data_size, void *reset_data);
|
||||
void *update_capsule;
|
||||
void *query_capsule_caps;
|
||||
void *query_variable_info;
|
||||
};
|
||||
|
||||
/* EFI Configuration Table and GUID definitions */
|
||||
#define NULL_GUID \
|
||||
EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, \
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
|
||||
|
||||
#define LOADED_IMAGE_PROTOCOL_GUID \
|
||||
EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, \
|
||||
0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
|
||||
|
||||
struct efi_system_table {
|
||||
struct efi_table_hdr hdr;
|
||||
unsigned long fw_vendor; /* physical addr of wchar_t vendor string */
|
||||
u32 fw_revision;
|
||||
unsigned long con_in_handle;
|
||||
struct efi_simple_input_interface *con_in;
|
||||
unsigned long con_out_handle;
|
||||
struct efi_simple_text_output_protocol *con_out;
|
||||
unsigned long stderr_handle;
|
||||
unsigned long std_err;
|
||||
struct efi_runtime_services *runtime;
|
||||
struct efi_boot_services *boottime;
|
||||
unsigned long nr_tables;
|
||||
unsigned long tables;
|
||||
};
|
||||
|
||||
struct efi_loaded_image {
|
||||
u32 revision;
|
||||
void *parent_handle;
|
||||
struct efi_system_table *system_table;
|
||||
void *device_handle;
|
||||
void *file_path;
|
||||
void *reserved;
|
||||
u32 load_options_size;
|
||||
void *load_options;
|
||||
void *image_base;
|
||||
aligned_u64 image_size;
|
||||
unsigned int image_code_type;
|
||||
unsigned int image_data_type;
|
||||
unsigned long unload;
|
||||
};
|
||||
|
||||
struct efi_device_path {
|
||||
u8 type;
|
||||
u8 sub_type;
|
||||
u16 length;
|
||||
};
|
||||
|
||||
struct simple_text_output_mode {
|
||||
s32 max_mode;
|
||||
s32 mode;
|
||||
s32 attribute;
|
||||
s32 cursor_column;
|
||||
s32 cursor_row;
|
||||
bool cursor_visible;
|
||||
};
|
||||
|
||||
struct efi_simple_text_output_protocol {
|
||||
void *reset;
|
||||
efi_status_t (EFIAPI *output_string)(
|
||||
struct efi_simple_text_output_protocol *this,
|
||||
const unsigned short *str);
|
||||
void *test_string;
|
||||
|
||||
efi_status_t(EFIAPI *query_mode)(
|
||||
struct efi_simple_text_output_protocol *this,
|
||||
unsigned long mode_number, unsigned long *columns,
|
||||
unsigned long *rows);
|
||||
efi_status_t(EFIAPI *set_mode)(
|
||||
struct efi_simple_text_output_protocol *this,
|
||||
unsigned long mode_number);
|
||||
efi_status_t(EFIAPI *set_attribute)(
|
||||
struct efi_simple_text_output_protocol *this,
|
||||
unsigned long attribute);
|
||||
efi_status_t(EFIAPI *clear_screen) (
|
||||
struct efi_simple_text_output_protocol *this);
|
||||
efi_status_t(EFIAPI *set_cursor_position) (
|
||||
struct efi_simple_text_output_protocol *this,
|
||||
unsigned long column, unsigned long row);
|
||||
efi_status_t(EFIAPI *enable_cursor)(void *, bool enable);
|
||||
struct simple_text_output_mode *mode;
|
||||
};
|
||||
|
||||
struct efi_input_key {
|
||||
u16 scan_code;
|
||||
s16 unicode_char;
|
||||
};
|
||||
|
||||
struct efi_simple_input_interface {
|
||||
efi_status_t(EFIAPI *reset)(struct efi_simple_input_interface *this,
|
||||
bool ExtendedVerification);
|
||||
efi_status_t(EFIAPI *read_key_stroke)(
|
||||
struct efi_simple_input_interface *this,
|
||||
struct efi_input_key *key);
|
||||
void *wait_for_key;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
@ -18,6 +18,8 @@
|
|||
#ifndef _DISK_PART_EFI_H
|
||||
#define _DISK_PART_EFI_H
|
||||
|
||||
#include <efi.h>
|
||||
|
||||
#define MSDOS_MBR_SIGNATURE 0xAA55
|
||||
#define EFI_PMBR_OSTYPE_EFI 0xEF
|
||||
#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
|
||||
|
|
@ -29,13 +31,6 @@
|
|||
#define GPT_ENTRY_NUMBERS 128
|
||||
#define GPT_ENTRY_SIZE 128
|
||||
|
||||
#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
|
||||
((efi_guid_t) \
|
||||
{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
|
||||
(b) & 0xff, ((b) >> 8) & 0xff, \
|
||||
(c) & 0xff, ((c) >> 8) & 0xff, \
|
||||
(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
|
||||
|
||||
#define PARTITION_SYSTEM_GUID \
|
||||
EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
|
||||
0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B)
|
||||
|
|
|
|||
|
|
@ -98,4 +98,6 @@ config ERRNO_STR
|
|||
- if errno is null or positive number - a pointer to "Success" message
|
||||
- if errno is negative - a pointer to errno related message
|
||||
|
||||
source lib/efi/Kconfig
|
||||
|
||||
endmenu
|
||||
|
|
|
|||
|
|
@ -7,6 +7,7 @@
|
|||
|
||||
ifndef CONFIG_SPL_BUILD
|
||||
|
||||
obj-$(CONFIG_EFI) += efi/
|
||||
obj-$(CONFIG_RSA) += rsa/
|
||||
obj-$(CONFIG_LZMA) += lzma/
|
||||
obj-$(CONFIG_LZO) += lzo/
|
||||
|
|
|
|||
33
lib/efi/Kconfig
Normal file
33
lib/efi/Kconfig
Normal file
|
|
@ -0,0 +1,33 @@
|
|||
config EFI
|
||||
bool "Support running U-Boot from EFI"
|
||||
depends on X86
|
||||
help
|
||||
U-Boot can be started from EFI on certain platforms. This allows
|
||||
EFI to perform most of the system init and then jump to U-Boot for
|
||||
final system boot. Another option is to run U-Boot as an EFI
|
||||
application, with U-Boot using EFI's drivers instead of its own.
|
||||
|
||||
choice
|
||||
prompt "Select EFI mode to use"
|
||||
depends on X86 && EFI
|
||||
|
||||
config EFI_APP
|
||||
bool "Support running as an EFI application"
|
||||
help
|
||||
Build U-Boot as an application which can be started from EFI. This
|
||||
is useful for examining a platform in the early stages of porting
|
||||
U-Boot to it. It allows only very basic functionality, such as a
|
||||
command prompt and memory and I/O functions. Use 'reset' to return
|
||||
to EFI.
|
||||
|
||||
config EFI_RAM_SIZE
|
||||
hex "Amount of EFI RAM for U-Boot"
|
||||
depends on EFI_APP
|
||||
default 0x2000000
|
||||
help
|
||||
Set the amount of EFI RAM which is claimed by U-Boot for its own
|
||||
use. U-Boot allocates this from EFI on start-up (along with a few
|
||||
other smaller amounts) and it can never be increased after that.
|
||||
It is used as the RAM size in with U-Boot.
|
||||
|
||||
endchoice
|
||||
7
lib/efi/Makefile
Normal file
7
lib/efi/Makefile
Normal file
|
|
@ -0,0 +1,7 @@
|
|||
#
|
||||
# (C) Copyright 2015 Google, Inc
|
||||
#
|
||||
# SPDX-License-Identifier: GPL-2.0+
|
||||
#
|
||||
|
||||
obj-$(CONFIG_EFI_APP) += efi_app.o efi.o
|
||||
101
lib/efi/efi.c
Normal file
101
lib/efi/efi.c
Normal file
|
|
@ -0,0 +1,101 @@
|
|||
/*
|
||||
* Copyright (c) 2015 Google, Inc
|
||||
*
|
||||
* SPDX-License-Identifier: GPL-2.0+
|
||||
*
|
||||
* EFI information obtained here:
|
||||
* http://wiki.phoenix.com/wiki/index.php/EFI_BOOT_SERVICES
|
||||
*
|
||||
* Common EFI functions
|
||||
*/
|
||||
|
||||
#include <common.h>
|
||||
#include <debug_uart.h>
|
||||
#include <errno.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/types.h>
|
||||
#include <efi.h>
|
||||
#include <efi_api.h>
|
||||
|
||||
DECLARE_GLOBAL_DATA_PTR;
|
||||
|
||||
/*
|
||||
* Unfortunately we cannot access any code outside what is built especially
|
||||
* for the stub. lib/string.c is already being built for the U-Boot payload
|
||||
* so it uses the wrong compiler flags. Add our own memset() here.
|
||||
*/
|
||||
static void efi_memset(void *ptr, int ch, int size)
|
||||
{
|
||||
char *dest = ptr;
|
||||
|
||||
while (size-- > 0)
|
||||
*dest++ = ch;
|
||||
}
|
||||
|
||||
/*
|
||||
* Since the EFI stub cannot access most of the U-Boot code, add our own
|
||||
* simple console output functions here. The EFI app will not use these since
|
||||
* it can use the normal console.
|
||||
*/
|
||||
void efi_putc(struct efi_priv *priv, const char ch)
|
||||
{
|
||||
struct efi_simple_text_output_protocol *con = priv->sys_table->con_out;
|
||||
uint16_t ucode[2];
|
||||
|
||||
ucode[0] = ch;
|
||||
ucode[1] = '\0';
|
||||
con->output_string(con, ucode);
|
||||
}
|
||||
|
||||
void efi_puts(struct efi_priv *priv, const char *str)
|
||||
{
|
||||
while (*str)
|
||||
efi_putc(priv, *str++);
|
||||
}
|
||||
|
||||
int efi_init(struct efi_priv *priv, const char *banner, efi_handle_t image,
|
||||
struct efi_system_table *sys_table)
|
||||
{
|
||||
efi_guid_t loaded_image_guid = LOADED_IMAGE_PROTOCOL_GUID;
|
||||
struct efi_boot_services *boot = sys_table->boottime;
|
||||
struct efi_loaded_image *loaded_image;
|
||||
int ret;
|
||||
|
||||
efi_memset(priv, '\0', sizeof(*priv));
|
||||
priv->sys_table = sys_table;
|
||||
priv->boot = sys_table->boottime;
|
||||
priv->parent_image = image;
|
||||
priv->run = sys_table->runtime;
|
||||
|
||||
efi_puts(priv, "U-Boot EFI ");
|
||||
efi_puts(priv, banner);
|
||||
efi_putc(priv, ' ');
|
||||
|
||||
ret = boot->open_protocol(priv->parent_image, &loaded_image_guid,
|
||||
(void **)&loaded_image, &priv->parent_image,
|
||||
NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL);
|
||||
if (ret) {
|
||||
efi_puts(priv, "Failed to get loaded image protocol\n");
|
||||
return ret;
|
||||
}
|
||||
priv->image_data_type = loaded_image->image_data_type;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void *efi_malloc(struct efi_priv *priv, int size, efi_status_t *retp)
|
||||
{
|
||||
struct efi_boot_services *boot = priv->boot;
|
||||
void *buf = NULL;
|
||||
|
||||
*retp = boot->allocate_pool(priv->image_data_type, size, &buf);
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
void efi_free(struct efi_priv *priv, void *ptr)
|
||||
{
|
||||
struct efi_boot_services *boot = priv->boot;
|
||||
|
||||
boot->free_pool(ptr);
|
||||
}
|
||||
139
lib/efi/efi_app.c
Normal file
139
lib/efi/efi_app.c
Normal file
|
|
@ -0,0 +1,139 @@
|
|||
/*
|
||||
* Copyright (c) 2015 Google, Inc
|
||||
*
|
||||
* SPDX-License-Identifier: GPL-2.0+
|
||||
*
|
||||
* EFI information obtained here:
|
||||
* http://wiki.phoenix.com/wiki/index.php/EFI_BOOT_SERVICES
|
||||
*
|
||||
* This file implements U-Boot running as an EFI application.
|
||||
*/
|
||||
|
||||
#include <common.h>
|
||||
#include <debug_uart.h>
|
||||
#include <errno.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/types.h>
|
||||
#include <efi.h>
|
||||
#include <efi_api.h>
|
||||
|
||||
DECLARE_GLOBAL_DATA_PTR;
|
||||
|
||||
static struct efi_priv *global_priv;
|
||||
|
||||
struct efi_system_table *efi_get_sys_table(void)
|
||||
{
|
||||
return global_priv->sys_table;
|
||||
}
|
||||
|
||||
unsigned long efi_get_ram_base(void)
|
||||
{
|
||||
return global_priv->ram_base;
|
||||
}
|
||||
|
||||
static efi_status_t setup_memory(struct efi_priv *priv)
|
||||
{
|
||||
struct efi_boot_services *boot = priv->boot;
|
||||
efi_physical_addr_t addr;
|
||||
efi_status_t ret;
|
||||
int pages;
|
||||
|
||||
/*
|
||||
* Use global_data_ptr instead of gd since it is an assignment. There
|
||||
* are very few assignments to global_data in U-Boot and this makes
|
||||
* it easier to find them.
|
||||
*/
|
||||
global_data_ptr = efi_malloc(priv, sizeof(struct global_data), &ret);
|
||||
if (!global_data_ptr)
|
||||
return ret;
|
||||
memset(gd, '\0', sizeof(*gd));
|
||||
|
||||
gd->malloc_base = (ulong)efi_malloc(priv, CONFIG_SYS_MALLOC_F_LEN,
|
||||
&ret);
|
||||
if (!gd->malloc_base)
|
||||
return ret;
|
||||
pages = CONFIG_EFI_RAM_SIZE >> 12;
|
||||
|
||||
/*
|
||||
* Don't allocate any memory above 4GB. U-Boot is a 32-bit application
|
||||
* so we want it to load below 4GB.
|
||||
*/
|
||||
addr = 1ULL << 32;
|
||||
ret = boot->allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
|
||||
priv->image_data_type, pages, &addr);
|
||||
if (ret) {
|
||||
printf("(using pool %lx) ", ret);
|
||||
priv->ram_base = (ulong)efi_malloc(priv, CONFIG_EFI_RAM_SIZE,
|
||||
&ret);
|
||||
if (!priv->ram_base)
|
||||
return ret;
|
||||
priv->use_pool_for_malloc = true;
|
||||
} else {
|
||||
priv->ram_base = addr;
|
||||
}
|
||||
gd->ram_size = pages << 12;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void free_memory(struct efi_priv *priv)
|
||||
{
|
||||
struct efi_boot_services *boot = priv->boot;
|
||||
|
||||
if (priv->use_pool_for_malloc)
|
||||
efi_free(priv, (void *)priv->ram_base);
|
||||
else
|
||||
boot->free_pages(priv->ram_base, gd->ram_size >> 12);
|
||||
|
||||
efi_free(priv, (void *)gd->malloc_base);
|
||||
efi_free(priv, gd);
|
||||
global_data_ptr = NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* efi_main() - Start an EFI image
|
||||
*
|
||||
* This function is called by our EFI start-up code. It handles running
|
||||
* U-Boot. If it returns, EFI will continue. Another way to get back to EFI
|
||||
* is via reset_cpu().
|
||||
*/
|
||||
efi_status_t efi_main(efi_handle_t image, struct efi_system_table *sys_table)
|
||||
{
|
||||
struct efi_priv local_priv, *priv = &local_priv;
|
||||
efi_status_t ret;
|
||||
|
||||
/* Set up access to EFI data structures */
|
||||
efi_init(priv, "App", image, sys_table);
|
||||
|
||||
global_priv = priv;
|
||||
|
||||
/*
|
||||
* Set up the EFI debug UART so that printf() works. This is
|
||||
* implemented in the EFI serial driver, serial_efi.c. The application
|
||||
* can use printf() freely.
|
||||
*/
|
||||
debug_uart_init();
|
||||
|
||||
ret = setup_memory(priv);
|
||||
if (ret) {
|
||||
printf("Failed to set up memory: ret=%lx\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
printf("starting\n");
|
||||
|
||||
board_init_f(GD_FLG_SKIP_RELOC);
|
||||
board_init_r(NULL, 0);
|
||||
free_memory(priv);
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
void reset_cpu(ulong addr)
|
||||
{
|
||||
struct efi_priv *priv = global_priv;
|
||||
|
||||
free_memory(priv);
|
||||
printf("U-Boot EFI exiting\n");
|
||||
priv->boot->exit(priv->parent_image, EFI_SUCCESS, 0, NULL);
|
||||
}
|
||||
Loading…
Reference in a new issue