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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | .. SPDX-License-Identifier: GPL-2.0+ .. Copyright 2024 Google LLC .. Written by Simon Glass <sjg@chromium.org> .. index:: single: efidebug (command) efidebug command ================ Synopsis -------- :: efidebug log efidebug media Description ----------- The *efidebug* command provides access to debugging features for the EFI-loader subsystem. Only two of the subcommands are documented at present. efidebug log ~~~~~~~~~~~~ This shows a log of EFI boot-services calls which have been handled since U-Boot started. This can be useful to see what the app is doing, or even what U-Boot itself has called. efidebug media ~~~~~~~~~~~~~~ This shows a list of all EFI media devices, their likely U-Boot uclass, and their corresponding device paths. Each EFI media device represents a block device that was discovered through EFI boot services, such as hard drives, USB storage, or other bootable media. The U-Boot Class column shows which U-Boot driver subsystem would likely handle the device (e.g., "ahci" for SATA drives, "usb" for USB storage). The device path shows the EFI device path for each device, which can be useful for debugging boot issues or understanding the system topology. Example ------- This shows checking the EFI media devices:: => efidebug media Device Media type Device Path ------------------- --------------- ----------- efi_media_1 ahci PciRoot(0x0)/Pci(0x3,0x0)/Sata(0x0,0xFFFF,0x0) efi_media_2 pci PciRoot(0x0)/Pci(0x5,0x0) This shows checking the log, then using 'efidebug tables' to fully set up the EFI-loader subsystem, then checking the log again:: => efidebug log EFI log (size 158) 0 alloc_pool bt-data size 33/51 buf 7fffd8448ad0 *buf 7c20010 ret OK 1 alloc_pages any-pages bt-data pgs 1 mem 7fffd8448a80 *mem 7c20000 ret OK 2 alloc_pool bt-data size 60/96 buf 7fffd8448ac0 *buf 7c1f010 ret OK 3 alloc_pages any-pages bt-data pgs 1 mem 7fffd8448a60 *mem 7c1f000 ret OK 4 alloc_pool bt-data size 60/96 buf 7fffd8448ac0 *buf 7c1e010 ret OK 5 alloc_pages any-pages bt-data pgs 1 mem 7fffd8448a60 *mem 7c1e000 ret OK 6 records => efidebug tables efi_var_to_file() Cannot persist EFI variables without system partition 0000000017bfc010 36122546-f7ef-4c8f-bd9b-eb8525b50c0b EFI Conformance Profiles Table 0000000017bd4010 b122a263-3661-4f68-9929-78f8b0d62180 EFI System Resource Table 0000000017bd8010 1e2ed096-30e2-4254-bd89-863bbef82325 TCG2 Final Events Table 0000000017bd6010 eb66918a-7eef-402a-842e-931d21c38ae9 Runtime properties 0000000008c49000 8868e871-e4f1-11d3-bc22-0080c73c8881 ACPI table 0000000018c5b000 f2fd1544-9794-4a2c-992e-e5bbcf20e394 SMBIOS3 table => efidebug log EFI log (size a20) 0 alloc_pool bt-data size 33/51 buf 7fffd8448ad0 *buf 7c20010 ret OK 1 alloc_pages any-pages bt-data pgs 1 mem 7fffd8448a80 *mem 7c20000 ret OK 2 alloc_pool bt-data size 60/96 buf 7fffd8448ac0 *buf 7c1f010 ret OK 3 alloc_pages any-pages bt-data pgs 1 mem 7fffd8448a60 *mem 7c1f000 ret OK 4 alloc_pool bt-data size 60/96 buf 7fffd8448ac0 *buf 7c1e010 ret OK 5 alloc_pages any-pages bt-data pgs 1 mem 7fffd8448a60 *mem 7c1e000 ret OK 6 alloc_pages any-pages rt-data pgs 20/32 mem 7fffd8448838 *mem 7bfe000 ret OK 7 alloc_pool rt-data size 60/96 buf 7fffd84487e0 *buf 7bfd010 ret OK 8 alloc_pages any-pages rt-data pgs 1 mem 7fffd8448780 *mem 7bfd000 ret OK 9 alloc_pool rt-data size 180/384 buf 56f190ffd890 *buf 7bfc010 ret OK 10 alloc_pages any-pages rt-data pgs 1 mem 7fffd8448800 *mem 7bfc000 ret OK 11 alloc_pool bt-data size 4 buf 7fffd8448840 *buf 7bfb010 ret OK 12 alloc_pages any-pages bt-data pgs 1 mem 7fffd84487f0 *mem 7bfb000 ret OK 13 alloc_pool bt-data size 10/16 buf 7fffd8448728 *buf 7bfa010 ret OK 14 alloc_pages any-pages bt-data pgs 1 mem 7fffd84486d0 *mem 7bfa000 ret OK 15 alloc_pool bt-data size 60/96 buf 7fffd84487e0 *buf 7bf9010 ret OK 16 alloc_pages any-pages bt-data pgs 1 mem 7fffd8448780 *mem 7bf9000 ret OK 17 alloc_pool bt-data size 10000/65536 buf 56f19100fae0 *buf 7be8010 ret OK 18 alloc_pages any-pages bt-data pgs 11/17 mem 7fffd84487d0 *mem 7be8000 ret OK 19 alloc_pool acpi-nvs size 10000/65536 buf 56f19100fae8 *buf 7bd7010 ret OK 20 alloc_pages any-pages acpi-nvs pgs 11/17 mem 7fffd84487d0 *mem 7bd7000 ret OK 21 alloc_pool bt-data size 60/96 buf 7fffd84487d0 *buf 7bd6010 ret OK 22 alloc_pages any-pages bt-data pgs 1 mem 7fffd8448770 *mem 7bd6000 ret OK 23 alloc_pool rt-data size 8 buf 7fffd8448818 *buf 7bd5010 ret OK 24 alloc_pages any-pages rt-data pgs 1 mem 7fffd84487c0 *mem 7bd5000 ret OK 25 alloc_pool bt-data size 8 buf 7fffd8448360 *buf 7bd4010 ret OK 26 alloc_pages any-pages bt-data pgs 1 mem 7fffd8448160 *mem 7bd4000 ret OK 27 alloc_pool bt-data size f0/240 buf 7fffd8448378 *buf 7bd3010 ret OK 28 alloc_pages any-pages bt-data pgs 1 mem 7fffd84482d0 *mem 7bd3000 ret OK 29 free_pool buf 7bd3010 ret OK 30 free_pages mem 7bd3000 pag 1 ret OK 31 alloc_pool bt-data size 60/96 buf 7fffd84482d8 *buf 7bd3010 ret OK 32 alloc_pages any-pages bt-data pgs 1 mem 7fffd8448280 *mem 7bd3000 ret OK 33 free_pool buf 7bfa010 ret OK 34 free_pages mem 7bfa000 pag 1 ret OK 35 alloc_pool bt-data size f0/240 buf 7fffd8448380 *buf 7bfa010 ret OK 36 alloc_pages any-pages bt-data pgs 1 mem 7fffd84482d0 *mem 7bfa000 ret OK 37 free_pool buf 7bfa010 ret OK 38 free_pages mem 7bfa000 pag 1 ret OK 39 free_pool buf 7bd4010 ret OK 40 free_pages mem 7bd4000 pag 1 ret OK 41 alloc_pool bt-data size 61/97 buf 7fffd8448810 *buf 7bfa010 ret OK 42 alloc_pages any-pages bt-data pgs 1 mem 7fffd84487c0 *mem 7bfa000 ret OK 43 alloc_pool bt-data size 60/96 buf 7fffd8448800 *buf 7bd4010 ret OK 44 alloc_pages any-pages bt-data pgs 1 mem 7fffd84487a0 *mem 7bd4000 ret OK 45 alloc_pool bt-data size 60/96 buf 7fffd8448800 *buf 7bd2010 ret OK 46 alloc_pages any-pages bt-data pgs 1 mem 7fffd84487a0 *mem 7bd2000 ret OK 47 alloc_pool bt-data size 60/96 buf 7fffd8448810 *buf 7bd1010 ret OK 48 alloc_pages any-pages bt-data pgs 1 mem 7fffd84487b0 *mem 7bd1000 ret OK 49 records => |