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/Linux-v6.1/Documentation/arm/
Duefi.rst2 The Unified Extensible Firmware Interface (UEFI)
5 UEFI, the Unified Extensible Firmware Interface, is a specification
7 maintained by the UEFI Forum - http://www.uefi.org/.
9 UEFI is an evolution of its predecessor 'EFI', so the terms EFI and
10 UEFI are used somewhat interchangeably in this document and associated
11 source code. As a rule, anything new uses 'UEFI', whereas 'EFI' refers
14 UEFI support in Linux
16 Booting on a platform with firmware compliant with the UEFI specification
19 - UEFI Runtime Services
21 interface of UEFI configuration tables. (ACPI, SMBIOS, ...)
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/Linux-v6.1/Documentation/devicetree/bindings/arm/
Dxen.txt22 To support UEFI on Xen ARM virtual platforms, Xen populates the FDT "uefi" node
28 xen,uefi-system-table | 64-bit | Guest physical address of the UEFI System
31 xen,uefi-mmap-start | 64-bit | Guest physical address of the UEFI memory
34 xen,uefi-mmap-size | 32-bit | Size in bytes of the UEFI memory map
37 xen,uefi-mmap-desc-size | 32-bit | Size in bytes of each entry in the UEFI
40 xen,uefi-mmap-desc-ver | 32-bit | Version of the mmap descriptor format.
49 uefi {
50 xen,uefi-system-table = <0xXXXXXXXX>;
51 xen,uefi-mmap-start = <0xXXXXXXXX>;
52 xen,uefi-mmap-size = <0xXXXXXXXX>;
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/Linux-v6.1/drivers/firmware/efi/
Dfdtparams.c37 .path = "/hypervisor/uefi",
39 [SYSTAB] = "xen,uefi-system-table",
40 [MMBASE] = "xen,uefi-mmap-start",
41 [MMSIZE] = "xen,uefi-mmap-size",
42 [DCSIZE] = "xen,uefi-mmap-desc-size",
43 [DCVERS] = "xen,uefi-mmap-desc-ver",
49 [SYSTAB] = "linux,uefi-system-table",
50 [MMBASE] = "linux,uefi-mmap-start",
51 [MMSIZE] = "linux,uefi-mmap-size",
52 [DCSIZE] = "linux,uefi-mmap-desc-size",
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Darm-runtime.c34 { 0, "UEFI runtime start" },
35 { DEFAULT_MAP_WINDOW_64, "UEFI runtime end" },
84 * Enable the UEFI Runtime Services if all prerequisites are in place, i.e.,
85 * non-early mapping of the UEFI system table and virtual mappings for all
143 pr_err("UEFI virtual mapping missing or invalid -- runtime services will not be available\n"); in arm_enable_runtime_services()
171 * On arm64/ARM, DMI depends on UEFI, and dmi_setup() needs to in arm_dmi_init()
Dmemattr.c52 * Returns a copy @out of the UEFI memory descriptor @in if it is covered
53 * entirely by a UEFI memory map entry with matching attributes. The virtual
75 * UEFI spec mandates that RuntimeServices memory regions must in entry_is_valid()
125 * This requires the UEFI memory map to have already been populated with
Defi-init.c150 * point, they originate from memory nodes in the DT, and UEFI in reserve_regions()
189 /* Grab UEFI information placed in FDT by stub */ in efi_init()
196 * If we are booting via UEFI, the UEFI memory map is the only in efi_init()
Driscv-runtime.c62 * Enable the UEFI Runtime Services if all prerequisites are in place, i.e.,
63 * non-early mapping of the UEFI system table and virtual mappings for all
121 pr_err("UEFI virtual mapping missing or invalid -- runtime services will not be available\n"); in riscv_enable_runtime_services()
DKconfig69 EFI_MEMORY_SP in UEFI 2.8). A memory range tagged with this
88 UEFI specification does not guarantee all memory to be
186 layout deviates from the layout mandated by the UEFI specification.
195 kernel subsystem, just for testing the UEFI runtime service
197 by the Firmware Test Suite (FWTS) for testing the UEFI runtime
/Linux-v6.1/security/integrity/platform_certs/
Dload_uefi.c17 * On T2 Macs reading the db and dbx efi variables to load UEFI Secure Boot
42 * Look to see if a UEFI variable called MokIgnoreDB exists and return true if
45 * This UEFI variable is set by the shim if a user tells the shim to not use
46 * the certs/hashes in the UEFI db variable for verification purposes. If it
98 * Load the certs contained in the UEFI MokListRT database into the
102 * that fails, this routine uses the MokListRT ordinary UEFI variable.
121 rc = parse_efi_signature_list("UEFI:MokListRT (MOKvar table)", in load_moklist_certs()
138 rc = parse_efi_signature_list("UEFI:MokListRT", in load_moklist_certs()
148 pr_info("Couldn't get UEFI MokListRT\n"); in load_moklist_certs()
153 * load_uefi_certs() - Load certs from UEFI sources
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/Linux-v6.1/include/linux/
Dcper.h3 * UEFI Common Platform Error Record
30 * defined in the UEFI spec because some of them don't make any sense.)
57 * in the UEFI spec v2.7, sec N.2.1.
150 * cper_section_descriptor. These UUIDs are defined in the UEFI spec
323 /* Record Header, UEFI v2.7 sec N.2.1 */
343 /* Section Descriptor, UEFI v2.7 sec N.2.2 */
359 /* Generic Processor Error Section, UEFI v2.7 sec N.2.4.1 */
378 /* IA32/X64 Processor Error Section, UEFI v2.7 sec N.2.4.2 */
385 /* IA32/X64 Processor Error Information Structure, UEFI v2.7 sec N.2.4.2.1 */
396 /* IA32/X64 Processor Context Information Structure, UEFI v2.7 sec N.2.4.2.2 */
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/Linux-v6.1/drivers/firmware/efi/libstub/
Dfdt.c71 * Delete all memory reserve map entries. When booting via UEFI, in update_fdt()
72 * kernel will use the UEFI memory map to find reserved regions. in update_fdt()
99 status = fdt_setprop_var(fdt, node, "linux,uefi-system-table", fdt_val64); in update_fdt()
105 status = fdt_setprop_var(fdt, node, "linux,uefi-mmap-start", fdt_val64); in update_fdt()
111 status = fdt_setprop_var(fdt, node, "linux,uefi-mmap-size", fdt_val32); in update_fdt()
115 status = fdt_setprop_var(fdt, node, "linux,uefi-mmap-desc-size", fdt_val32); in update_fdt()
119 status = fdt_setprop_var(fdt, node, "linux,uefi-mmap-desc-ver", fdt_val32); in update_fdt()
159 err = fdt_setprop_inplace_var(fdt, node, "linux,uefi-mmap-start", fdt_val64); in update_fdt_memmap()
165 err = fdt_setprop_inplace_var(fdt, node, "linux,uefi-mmap-size", fdt_val32); in update_fdt_memmap()
171 err = fdt_setprop_inplace_var(fdt, node, "linux,uefi-mmap-desc-size", fdt_val32); in update_fdt_memmap()
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Dsecureboot.c38 efi_err("Could not determine UEFI Secure Boot status.\n"); in efi_get_secureboot()
60 efi_info("UEFI Secure Boot is enabled.\n"); in efi_get_secureboot()
Darm64-stub.c39 * UEFI runtime regions 1:1 and so calling SetVirtualAddressMap() is in check_platform_features()
45 /* UEFI mandates support for 4 KB granularity, no need to check */ in check_platform_features()
170 * UEFI PE/COFF loader if the alignment is suitable. in handle_kernel_image()
/Linux-v6.1/Documentation/arm64/
Darm-acpi.rst13 it refers to are managed by the UEFI Forum. The specification is
14 available at http://www.uefi.org/specifications and documents referenced
15 by the specification can be found via http://www.uefi.org/acpi.
64 ACPI governance into the UEFI forum has significantly opened up the
125 is via the UEFI system configuration table. Just so it is explicit, this
126 means that ACPI is only supported on platforms that boot via UEFI.
140 In order for the kernel to load and use ACPI tables, the UEFI implementation
148 the kernel by the ACPI core, using the address provided by UEFI.
233 is that UEFI will leave the device in a reasonable default state, including
276 - https://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf
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Dacpi_object_usage.rst12 outside of the UEFI Forum (see Section 5.2.6 of the specification).
22 STAO, TCPA, TPM2, UEFI, XENV
123 UEFI-based; if it is UEFI-based, this table may be supplied. When this
124 table is not present, UEFI run time service will be utilized to save
388 UEFI Signature Reserved (signature == "UEFI")
390 **UEFI ACPI data table**
486 with the UEFI Forum; this may cause some iteration as
507 when UEFI leaves them in a state that may not be what
537 UEFI Forum.
626 whatever power state they were left in by UEFI.
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/Linux-v6.1/Documentation/x86/x86_64/
Duefi.rst7 The nomenclature EFI and UEFI are used interchangeably in this document.
13 1. UEFI specification: http://www.uefi.org
15 2. Booting Linux kernel on UEFI x86_64 platform requires bootloader
18 3. x86_64 platform with EFI/UEFI firmware.
/Linux-v6.1/drivers/net/wireless/intel/iwlwifi/fw/
Duefi.c11 #include "fw/uefi.h"
33 * from the UEFI is not working. To implement this properly, in iwl_uefi_get_pnvm()
46 "PNVM UEFI variable not found 0x%lx (len %lu)\n", in iwl_uefi_get_pnvm()
52 IWL_DEBUG_FW(trans, "Read PNVM from UEFI with size %lu\n", package_size); in iwl_uefi_get_pnvm()
215 * from the UEFI is not working. To implement this properly, in iwl_uefi_get_reduced_power()
228 "Reduced Power UEFI variable not found 0x%lx (len %lu)\n", in iwl_uefi_get_reduced_power()
234 IWL_DEBUG_FW(trans, "Read reduced power from UEFI with size %lu\n", in iwl_uefi_get_reduced_power()
295 * from the UEFI is not working. To implement this properly, in iwl_uefi_get_sgom_table()
308 "SGOM UEFI variable not found 0x%lx\n", status); in iwl_uefi_get_sgom_table()
312 IWL_DEBUG_FW(trans, "Read SGOM from UEFI with size %lu\n", in iwl_uefi_get_sgom_table()
/Linux-v6.1/drivers/char/tpm/eventlog/
Defi.c38 pr_err("Could not map UEFI TPM log table !\n"); in tpm_read_log_efi()
46 pr_warn("UEFI TPM log area empty\n"); in tpm_read_log_efi()
53 pr_err("Could not map UEFI TPM log table payload!\n"); in tpm_read_log_efi()
78 pr_err("Could not map UEFI TPM final log\n"); in tpm_read_log_efi()
/Linux-v6.1/Documentation/filesystems/
Defivarfs.rst22 UEFI variables causes the system firmware to fail to POST, efivarfs
29 When a content of an UEFI variable in /sys/firmware/efi/efivars is
31 4 bytes of the output represent the UEFI variable attributes,
/Linux-v6.1/Documentation/driver-api/firmware/efi/
Dindex.rst4 UEFI Support
7 UEFI stub library functions
/Linux-v6.1/arch/arm64/
DKconfig.debug13 bool "UEFI debugging"
17 UEFI firmware
/Linux-v6.1/Documentation/ABI/testing/
Dsysfs-firmware-efi-esrt6 the UEFI UpdateCapsule mechanism described in section 7.5 of
7 the UEFI Standard.
43 3 UEFI Driver
/Linux-v6.1/tools/wmi/
Ddell-smbios-example.c190 printf("UEFI Capsule enabled token is: %d\n", ret); in main()
192 printf("UEFI Capsule disabled token is: %d\n", ret); in main()
194 /* activate UEFI capsule token if disabled */ in main()
196 printf("Enabling UEFI capsule token"); in main()
/Linux-v6.1/arch/arm64/include/asm/
Defi.h88 * On ARM systems, virtually remapped UEFI runtime services are set up in two
90 * - The stub retrieves the final version of the memory map from UEFI, populates
95 * and the virtual remapping of the UEFI Runtime Services regions is loaded
/Linux-v6.1/drivers/gpu/drm/tiny/
DKconfig81 UEFI, VESA, etc.
83 On x86 BIOS or UEFI systems, you should also select SYSFB_SIMPLEFB
84 to use UEFI and VESA framebuffers.

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