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diff --git a/doc/usage/cmd/efi.rst b/doc/usage/cmd/efi.rst new file mode 100644 index 00000000000..ef37ff2f4c1 --- /dev/null +++ b/doc/usage/cmd/efi.rst @@ -0,0 +1,219 @@ +.. SPDX-License-Identifier: GPL-2.0+ +.. Copyright 2020, Heinrich Schuchardt <xypron.glpk@gmx.de> + +efi command +=========== + +Synopsis +-------- + +:: + + efi mem [all] + efi tables + +Description +----------- + +The *efi* command provides information about the EFI environment U-Boot is +running in, when it is started from EFI. + +When running as an EFI app, this command queries EFI boot services for the +information. When running as an EFI payload, EFI boot services have been +stopped, so it uses the information collected by the boot stub before that +happened. + +efi mem +~~~~~~~ + +This shows the EFI memory map, sorted in order of physical address. + +This is normally a very large table. To help reduce the amount of detritus, +boot-time memory is normally merged with conventional memory. Use the 'all' +argument to show everything. + +The fields are as follows: + +# + Entry number (sequentially from 0) + +Type + Memory type. EFI has a large number of memory types. The type is shown in + the format <n>:<name> where in is the format number in hex and <name> is the + name. + +Physical + Physical address + +Virtual + Virtual address + +Size + Size of memory area in bytes + +Attributes + Shows a code for memory attributes. The key for this is shown below the + table. + +efi tables +~~~~~~~~~~ + +This shows a list of the EFI tables provided in the system table. These use +GUIDs so it is not possible in general to show the name of a table. But some +effort is made to provide a useful table, where the GUID is known by U-Boot. + + +Example +------- + +:: + + => efi mem + EFI table at 0, memory map 000000001ad38b60, size 1260, key a79, version 1, descr. size 0x30 + # Type Physical Virtual Size Attributes + 0 7:conv 0000000000 0000000000 00000a0000 f + <gap> 00000a0000 0000060000 + 1 7:conv 0000100000 0000000000 0000700000 f + 2 a:acpi_nvs 0000800000 0000000000 0000008000 f + 3 7:conv 0000808000 0000000000 0000008000 f + 4 a:acpi_nvs 0000810000 0000000000 00000f0000 f + 5 7:conv 0000900000 0000000000 001efef000 f + 6 6:rt_data 001f8ef000 0000000000 0000100000 rf + 7 5:rt_code 001f9ef000 0000000000 0000100000 rf + 8 0:reserved 001faef000 0000000000 0000080000 f + 9 9:acpi_reclaim 001fb6f000 0000000000 0000010000 f + 10 a:acpi_nvs 001fb7f000 0000000000 0000080000 f + 11 7:conv 001fbff000 0000000000 0000359000 f + 12 6:rt_data 001ff58000 0000000000 0000020000 rf + 13 a:acpi_nvs 001ff78000 0000000000 0000088000 f + <gap> 0020000000 0090000000 + 14 0:reserved 00b0000000 0000000000 0010000000 1 + + Attributes key: + f: uncached, write-coalescing, write-through, write-back + rf: uncached, write-coalescing, write-through, write-back, needs runtime mapping + 1: uncached + *Some areas are merged (use 'all' to see) + + + => efi mem all + EFI table at 0, memory map 000000001ad38bb0, size 1260, key a79, version 1, descr. size 0x30 + # Type Physical Virtual Size Attributes + 0 3:bs_code 0000000000 0000000000 0000001000 f + 1 7:conv 0000001000 0000000000 000009f000 f + <gap> 00000a0000 0000060000 + 2 7:conv 0000100000 0000000000 0000700000 f + 3 a:acpi_nvs 0000800000 0000000000 0000008000 f + 4 7:conv 0000808000 0000000000 0000008000 f + 5 a:acpi_nvs 0000810000 0000000000 00000f0000 f + 6 4:bs_data 0000900000 0000000000 0000c00000 f + 7 7:conv 0001500000 0000000000 000aa36000 f + 8 2:loader_data 000bf36000 0000000000 0010000000 f + 9 4:bs_data 001bf36000 0000000000 0000020000 f + 10 7:conv 001bf56000 0000000000 00021e1000 f + 11 1:loader_code 001e137000 0000000000 00000c4000 f + 12 7:conv 001e1fb000 0000000000 000009b000 f + 13 1:loader_code 001e296000 0000000000 00000e2000 f + 14 7:conv 001e378000 0000000000 000005b000 f + 15 4:bs_data 001e3d3000 0000000000 000001e000 f + 16 7:conv 001e3f1000 0000000000 0000016000 f + 17 4:bs_data 001e407000 0000000000 0000016000 f + 18 2:loader_data 001e41d000 0000000000 0000002000 f + 19 4:bs_data 001e41f000 0000000000 0000828000 f + 20 3:bs_code 001ec47000 0000000000 0000045000 f + 21 4:bs_data 001ec8c000 0000000000 0000001000 f + 22 3:bs_code 001ec8d000 0000000000 000000e000 f + 23 4:bs_data 001ec9b000 0000000000 0000001000 f + 24 3:bs_code 001ec9c000 0000000000 000002c000 f + 25 4:bs_data 001ecc8000 0000000000 0000001000 f + 26 3:bs_code 001ecc9000 0000000000 000000c000 f + 27 4:bs_data 001ecd5000 0000000000 0000006000 f + 28 3:bs_code 001ecdb000 0000000000 0000014000 f + 29 4:bs_data 001ecef000 0000000000 0000001000 f + 30 3:bs_code 001ecf0000 0000000000 000005b000 f + 31 4:bs_data 001ed4b000 0000000000 000000b000 f + 32 3:bs_code 001ed56000 0000000000 0000024000 f + 33 4:bs_data 001ed7a000 0000000000 0000006000 f + 34 3:bs_code 001ed80000 0000000000 0000010000 f + 35 4:bs_data 001ed90000 0000000000 0000002000 f + 36 3:bs_code 001ed92000 0000000000 0000025000 f + 37 4:bs_data 001edb7000 0000000000 0000003000 f + 38 3:bs_code 001edba000 0000000000 0000011000 f + 39 4:bs_data 001edcb000 0000000000 0000008000 f + 40 3:bs_code 001edd3000 0000000000 000002d000 f + 41 4:bs_data 001ee00000 0000000000 0000201000 f + 42 3:bs_code 001f001000 0000000000 0000024000 f + 43 4:bs_data 001f025000 0000000000 0000002000 f + 44 3:bs_code 001f027000 0000000000 0000009000 f + 45 4:bs_data 001f030000 0000000000 0000005000 f + 46 3:bs_code 001f035000 0000000000 000002f000 f + 47 4:bs_data 001f064000 0000000000 0000001000 f + 48 3:bs_code 001f065000 0000000000 0000005000 f + 49 4:bs_data 001f06a000 0000000000 0000005000 f + 50 3:bs_code 001f06f000 0000000000 0000007000 f + 51 4:bs_data 001f076000 0000000000 0000007000 f + 52 3:bs_code 001f07d000 0000000000 000000d000 f + 53 4:bs_data 001f08a000 0000000000 0000001000 f + 54 3:bs_code 001f08b000 0000000000 0000006000 f + 55 4:bs_data 001f091000 0000000000 0000004000 f + 56 3:bs_code 001f095000 0000000000 000000d000 f + 57 4:bs_data 001f0a2000 0000000000 0000003000 f + 58 3:bs_code 001f0a5000 0000000000 0000026000 f + 59 4:bs_data 001f0cb000 0000000000 0000005000 f + 60 3:bs_code 001f0d0000 0000000000 0000019000 f + 61 4:bs_data 001f0e9000 0000000000 0000004000 f + 62 3:bs_code 001f0ed000 0000000000 0000024000 f + 63 4:bs_data 001f111000 0000000000 0000008000 f + 64 3:bs_code 001f119000 0000000000 000000b000 f + 65 4:bs_data 001f124000 0000000000 0000001000 f + 66 3:bs_code 001f125000 0000000000 0000002000 f + 67 4:bs_data 001f127000 0000000000 0000002000 f + 68 3:bs_code 001f129000 0000000000 0000009000 f + 69 4:bs_data 001f132000 0000000000 0000003000 f + 70 3:bs_code 001f135000 0000000000 0000005000 f + 71 4:bs_data 001f13a000 0000000000 0000003000 f + 72 3:bs_code 001f13d000 0000000000 0000005000 f + 73 4:bs_data 001f142000 0000000000 0000003000 f + 74 3:bs_code 001f145000 0000000000 0000011000 f + 75 4:bs_data 001f156000 0000000000 000000b000 f + 76 3:bs_code 001f161000 0000000000 0000009000 f + 77 4:bs_data 001f16a000 0000000000 0000400000 f + 78 3:bs_code 001f56a000 0000000000 0000006000 f + 79 4:bs_data 001f570000 0000000000 0000001000 f + 80 3:bs_code 001f571000 0000000000 0000001000 f + 81 4:bs_data 001f572000 0000000000 0000002000 f + 82 3:bs_code 001f574000 0000000000 0000017000 f + 83 4:bs_data 001f58b000 0000000000 0000364000 f + 84 6:rt_data 001f8ef000 0000000000 0000100000 rf + 85 5:rt_code 001f9ef000 0000000000 0000100000 rf + 86 0:reserved 001faef000 0000000000 0000080000 f + 87 9:acpi_reclaim 001fb6f000 0000000000 0000010000 f + 88 a:acpi_nvs 001fb7f000 0000000000 0000080000 f + 89 4:bs_data 001fbff000 0000000000 0000201000 f + 90 7:conv 001fe00000 0000000000 00000e8000 f + 91 4:bs_data 001fee8000 0000000000 0000020000 f + 92 3:bs_code 001ff08000 0000000000 0000026000 f + 93 4:bs_data 001ff2e000 0000000000 0000009000 f + 94 3:bs_code 001ff37000 0000000000 0000021000 f + 95 6:rt_data 001ff58000 0000000000 0000020000 rf + 96 a:acpi_nvs 001ff78000 0000000000 0000088000 f + <gap> 0020000000 0090000000 + 97 0:reserved 00b0000000 0000000000 0010000000 1 + + Attributes key: + f: uncached, write-coalescing, write-through, write-back + rf: uncached, write-coalescing, write-through, write-back, needs runtime mapping + 1: uncached + + + => efi tables + 000000001f8edf98 ee4e5898-3914-4259-9d6e-dc7bd79403cf EFI_LZMA_COMPRESSED + 000000001ff2ace0 05ad34ba-6f02-4214-952e-4da0398e2bb9 EFI_DXE_SERVICES + 000000001f8ea018 7739f24c-93d7-11d4-9a3a-0090273fc14d EFI_HOB_LIST + 000000001ff2bac0 4c19049f-4137-4dd3-9c10-8b97a83ffdfa EFI_MEMORY_TYPE + 000000001ff2cb10 49152e77-1ada-4764-b7a2-7afefed95e8b (unknown) + 000000001f9ac018 060cc026-4c0d-4dda-8f41-595fef00a502 EFI_MEM_STATUS_CODE_REC + 000000001f9ab000 eb9d2d31-2d88-11d3-9a16-0090273fc14d SMBIOS table + 000000001fb7e000 eb9d2d30-2d88-11d3-9a16-0090273fc14d EFI_GUID_EFI_ACPI1 + 000000001fb7e014 8868e871-e4f1-11d3-bc22-0080c73c8881 ACPI table + 000000001e654018 dcfa911d-26eb-469f-a220-38b7dc461220 (unknown) |