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fwupd/plugins/uefi
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Mario Limonciello 01a7958cd1 uefi, dell-esrt: Show firmware version when capsule updates unavailable 
When the system doesn't support UEFI capsule updates no firmware version
is displayed for the BIOS.  Fix this by creating a dummy device:
```
├─System Firmware:
│     Device ID:           123fd4143619569d8ddb6ea47d1d3911eb5ef07a
│     Current version:     1.7.0
│     Vendor:              Dell Inc.
│     Update Error:        UEFI Capsule updates not available or enabled
│     Flags:               internal|require-ac|registered|needs-reboot
```

If the dell-esrt plugin determines that capsule updates can be enabled
however, make the device it creates replace the dummy device:
```
├─Dell UEFI updates:
│     Device ID:           123fd4143619569d8ddb6ea47d1d3911eb5ef07a
│     Summary:             Enable UEFI Update Functionality
│     Current version:     0
│     Update Error:        Firmware updates disabled; run 'fwupdmgr unlock' to enable
│     Flags:               locked|supported|registered|needs-reboot
```

Fixes: #1366
2019-09-19 15:48:39 +01:00
..
efi Fix some typos spotted using codespell 2019-04-08 12:47:53 +01:00
tests uefi: Add the PCR0 value as the device checksum for system firmware 2018-12-14 19:23:04 +00:00
fu-plugin-uefi.c uefi, dell-esrt: Show firmware version when capsule updates unavailable 2019-09-19 15:48:39 +01:00
fu-self-test.c trivial: UEFI skip self tests if library fails to initialize 2019-08-29 12:52:27 -05:00
fu-ucs2.c trivial: Ensure all source files include config.h 2018-08-09 14:21:23 +01:00
fu-ucs2.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-uefi-bgrt.c uefi: Do not check the BGRT status before uploading a UX capsule 2019-01-16 13:08:48 +00:00
fu-uefi-bgrt.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-uefi-bootmgr.c uefi: Actually write the new device path if different than before 2019-08-02 14:34:12 +01:00
fu-uefi-bootmgr.h uefi: Copy the shimx64.efi binary for known broken firmware 2019-03-14 17:00:53 +00:00
fu-uefi-common.c uefi: Don't leak the application build path into the binary 2019-04-17 16:39:29 +08:00
fu-uefi-common.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-uefi-device.c uefi: make the TPM optional for runtime again (Fixes: #1362) 2019-09-17 23:41:41 +01:00
fu-uefi-device.h uefi: Actually upload the UPDATE_INFO entry for the UX capsule 2019-03-15 14:22:01 +00:00
fu-uefi-devpath.c uefi: Fix a libasan failure when reading a UEFI variable 2019-05-02 17:25:34 +01:00
fu-uefi-devpath.h uefi: Fix a libasan failure when reading a UEFI variable 2019-05-02 17:25:34 +01:00
fu-uefi-pcrs.c trivial: uefi: Make the TCTI output less verbose 2019-09-17 23:41:41 +01:00
fu-uefi-pcrs.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-uefi-tool.c Allow setting custom flags when using fwupdate 2019-08-02 14:34:12 +01:00
fu-uefi-update-info.c uefi: Fix a libasan failure when reading a UEFI variable 2019-05-02 17:25:34 +01:00
fu-uefi-update-info.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-uefi-vars.c uefi: Fix the self tests when running on Fedora SilverBlue 2019-02-26 19:13:35 +00:00
fu-uefi-vars.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
meson.build uefi: use tpm2-tss library to read PCR values 2019-08-27 06:23:42 -05:00
README.md trivial: Add the missing protocol IDs to the plugin READMEs 2019-01-29 22:28:09 +00:00
uefi.conf uefi: Check the amount of free space on the ESP 2018-09-12 13:56:02 +01:00
uefi.quirk Add a DMI quirk for the Minnowboard Turbot 2019-09-10 20:39:45 +01:00

README.md

UEFI Support

Introduction

The Unified Extensible Firmware Interface (UEFI) is a specification that defines the software interface between an OS and platform firmware. With the UpdateCapsule boot service it can be used to update system firmware.

If you don't want or need this functionality you can use the -Dplugin_uefi=false option.

Firmware Format

The daemon will decompress the cabinet archive and extract a firmware blob in EFI capsule file format.

See https://www.uefi.org/sites/default/files/resources/UEFI%20Spec%202_6.pdf for details.

This plugin supports the following protocol ID:

  • org.uefi.capsule

GUID Generation

These devices use the UEFI GUID as provided in the ESRT. Additionally, for the system device the main-system-firmware GUID is also added.

For compatibility with Windows 10, the plugin also adds GUIDs of the form UEFI\RES_{$(esrt)}.

UEFI Unlock Support

On some Dell systems it is possible to turn on and off UEFI capsule support from within the BIOS. This functionality can also be adjusted from within the OS by fwupd. This requires compiling with libsmbios support.

When fwupd has been compiled with this support you will be able to enable UEFI support on the device by using the unlock command.

Custom EFI System Partition

Since version 1.1.0 fwupd will autodetect the ESP when it is mounted on /boot/efi, /boot, or /efi. A custom EFI system partition location can be used by modifying OverrideESPMountPoint in /etc/fwupd/uefi.conf.

Setting an invalid directory will disable the fwupd plugin.