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path: root/lib/efi_loader/efi_setup.c
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2020-07-11efi_loader: OsIndicationsSupported, PlatformLangCodesHeinrich Schuchardt
UEFI variables OsIndicationsSupported, PlatformLangCodes should be read only. Avoid EFI_CALL() for SetVariable(). Signed-off-by: Heinrich Schuchardt <[email protected]>
2020-07-03efi_loader: export initialization stateHeinrich Schuchardt
Export the UEFI sub-system initialization state. This will allow to treat the setting of UEFI variables during and after initialization differently. Signed-off-by: Heinrich Schuchardt <[email protected]>
2020-07-03efi_loader: change efi objects initialization orderAKASHI Takahiro
The simplest solution to revert the commit b32ac16f9a32 ("test/py: fix test_efi_secboot/conftest.py") is to move efi_console_register() forward before efi_disk_register(). Signed-off-by: AKASHI Takahiro <[email protected]> Reviewed by: Heinrich Schuchardt <[email protected]>
2020-05-21efi_loader: initialize root node firstHeinrich Schuchardt
With commit 16ad946f41d3 ("efi_loader: change setup sequence") the detection of block device was moved to the start of the initialization sequence. In the case of virtio devices two handles with the same device path being created. The root node handle should be created before anything else. Reported-by: Ard Biesheuvel <[email protected]> Fixes: 16ad946f41d3 ("efi_loader: change setup sequence") Signed-off-by: Heinrich Schuchardt <[email protected]>
2020-05-04efi_loader: change setup sequenceHeinrich Schuchardt
If we want to restore variables from disk, we need to initialize block devices before variables. Signed-off-by: Heinrich Schuchardt <[email protected]>
2020-05-04efi_loader: correct comments for efi_status_tHeinrich Schuchardt
EFI_STATUS is unsigned (UINTN). Hence it cannot be negative. Correct comments for 'Return:'. Signed-off-by: Heinrich Schuchardt <[email protected]>
2020-04-16efi_loader: set up secure bootAKASHI Takahiro
The following variable is exported as UEFI specification defines: SignatureSupport: array of GUIDs representing the type of signatures supported by the platform firmware Signed-off-by: AKASHI Takahiro <[email protected]>
2020-02-28efi_loader: Implement FileLoad2 for initramfs loadingIlias Apalodimas
Following kernel's proposal for an arch-agnostic initrd loading mechanism [1] let's implement the U-boot counterpart. This new approach has a number of advantages compared to what we did up to now. The file is loaded into memory only when requested limiting the area of TOCTOU attacks. Users will be allowed to place the initramfs file on any u-boot accessible partition instead of just the ESP one. Finally this is an attempt of a generic interface across architectures in the linux kernel so it makes sense to support that. The file location is intentionally only supported as a config option argument(CONFIG_EFI_INITRD_FILESPEC), in an effort to enhance security. Although U-boot is not responsible for verifying the integrity of the initramfs, we can enhance the offered security by only accepting a built-in option, which will be naturally verified by UEFI Secure Boot. This can easily change in the future if needed and configure that via ENV or UEFI variable. [1] https://lore.kernel.org/linux-efi/[email protected]/T/#m4a25eb33112fab7a22faa0fd65d4d663209af32f Signed-off-by: Ilias Apalodimas <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]>
2020-02-26efi_loader: implement EFI_RT_PROPERTIES_TABLEHeinrich Schuchardt
UEFI spec 2.8 errata A replaces the RuntimeServicesSupported variable defined in UEFI spec 2.8 by the configuration table EFI_RT_PROPERTIES_TABLE. So let's follow suit. Cc: Ard Biesheuvel <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]> Tested-by: Ard Biesheuvel <[email protected]>
2019-07-06efi_loader: initialization of variable servicesHeinrich Schuchardt
Provide an initialization routine for variable services. Signed-off-by: Heinrich Schuchardt <[email protected]>
2019-06-14efi_loader: add RuntimeServicesSupported variableAKASHI Takahiro
This variable is defined in UEFI specification 2.8, section 8.1. Its value should be updated whenever we add any usable runtime services function. Currently we only support SetVirtualAddress() for all systems and ResetSystem() for some. Signed-off-by: AKASHI Takahiro <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2019-05-07efi_loader: clean up UEFI sub-system initializationHeinrich Schuchardt
allow_unaligned(), switch_to_non_secure_mode(), and efi_init_obj_list() are called in sequence in multiple places. Move calls to allow_unaligned() and switch_to_non_secure_mode() to efi_init_obj_list(). Remove unused includes. Signed-off-by: Heinrich Schuchardt <[email protected]>
2019-05-02efi_loader: set OsIndicationsSupported at initAKASHI Takahiro
UEFI variables should be installed using well-defined API. Currently we don't support much, but the value of OsIndicationsSupported will be updated once some features are added in the future. Signed-off-by: AKASHI Takahiro <[email protected]> Add comments. Rename a variable. Reviewed-by: Heinrich Schuchardt <[email protected]>
2019-04-12efi_loader: fix setting PlatformLangHeinrich Schuchardt
The UEFI variables PlatformLang and PlatformLangCodes specify the current firmware language and the list of all available languages. Currently their values are hard coded. With the patch a new configuration variable EFI_PLATFORM_LANG_CODES is provided. When initializing the UEFI subsystem this configuration variable is used to initialize PlatformLangCodes. The value of variable PlatformLang is read. If it is not set, the first language specified in EFI_PLATFORM_LANG_CODES is used to initialize PlatformLang. Suggested-by: Takahiro Akashi <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]>
2019-04-12efi_loader: move efi_save_gd() call to board_r.cHeinrich Schuchardt
The first functions of the UEFI sub-system are invoked before reaching the U-Boot shell, e.g. efi_set_bootdev(), efi_dp_from_name(), efi_dp_from_file(). We should be able to print out device paths for debugging purposes here. When printing device paths via printf("%pD\n", dp) this invokes functions defined as EFIAPI. So efi_save_gd() must be called beforehand. So let's move the efi_save_gd() call to function initr_reloc_global_data(() in board_r.c. Signed-off-by: Heinrich Schuchardt <[email protected]>
2019-04-07efi_loader: variables PlatformLang and PlatformLangCodesHeinrich Schuchardt
Since TianoCore EDK2 commit d65f2cea36d1 ("ShellPkg/CommandLib: Locate proper UnicodeCollation instance") in edk2 the UEFI Shell crashes if EFI variable PlatformLang is not defined. As this variable is anyway prescribed in the UEFI 2.7 spec let's define it to L"en-US". Use the same value for PlatformLangCodes that defines the list of all supported languages. Signed-off-by: Heinrich Schuchardt <[email protected]>
2019-02-13efi_loader: move efi_init_obj_list() to a new efi_setup.cAKASHI Takahiro
The function, efi_init_obj_list(), can be shared in different pseudo efi applications, like bootefi/bootmgr as well as my efishell. Moreover, it will be utilized to extend efi initialization, for example, my "removable disk support" patch and "capsule-on-disk support" patch in the future. So with this patch, it will be moved to a new file, efi_setup.c, under lib/efi_loader and exported, making no changes in functionality. Signed-off-by: AKASHI Takahiro <[email protected]> Remove lines deactivated by #if 1 #else Reviewed-by: Heinrich Schuchardt <[email protected]> Signed-off-by: Alexander Graf <[email protected]>
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