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u-boot/lib/efi_loader
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Sughosh Ganu 61e0a20aec blkmap: pass information on ISO image to the OS 
The EFI HTTP boot puts the ISO installer image at some location in
memory. Information about this image has to be passed on to the OS
kernel, which is done by adding a persistent memory(pmem) node to the
devicetree(DT) that is passed to the OS. The OS kernel then gets
information about the presence of this ISO image and proceeds with the
installation.

In U-Boot, this ISO image gets mounted as a memory mapped blkmap
device slice, with the 'preserve' attribute. Add a helper function
which iterates through all such slices, and invokes a callback. The
callback adds the pmem node to the DT and removes the corresponding
memory region from the EFI memory map. Invoke this helper function as
part of the DT fixup which happens before booting the OS.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2025-03-26 13:28:08 +02:00
..
.gitignore efi_loader: git ignore helloworld_efi.S 2020-01-07 18:08:20 +01:00
boothart.c efi_loader: add an EFI binary to print boot hart ID 2022-12-02 19:17:24 +01:00
capsule_esl.dtsi.in efi_loader: Fix capsule_esl.dtsi.in comment style 2024-06-10 15:05:09 +02:00
dtbdump.c efi_loader: Mark static function in dumpdtb 2024-10-30 21:45:39 +01:00
efi_acpi.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_bootbin.c efi_loader: efi_net: Add device path cache 2025-03-10 07:02:25 +01:00
efi_bootmgr.c efi_loader: remove memory occupied by a ramdisk from EFI memory map 2025-03-26 13:28:08 +02:00
efi_boottime.c Merge tag 'u-boot-dfu-next-20250310' of https://source.denx.de/u-boot/custodians/u-boot-dfu into next 2025-03-10 10:13:03 -06:00
efi_capsule.c fwu: print a message if empty capsule checks fail 2024-09-19 10:52:50 +03:00
efi_conformance.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_console.c Prepare v2024.10-rc6 2024-09-30 17:48:12 -06:00
efi_device_path.c efi_loader: efi_net: Add device path cache 2025-03-10 07:02:25 +01:00
efi_device_path_to_text.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_device_path_utilities.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_disk.c efi_loader: Fix potential deref-after-null 2025-02-20 09:04:12 +01:00
efi_dt_fixup.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_esrt.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_fdt.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_file.c efi_loader: support file rename in SetInfo() 2025-03-07 11:50:22 -06:00
efi_firmware.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_freestanding.c efi_loader: Remove <common.h> 2023-12-21 08:54:37 -05:00
efi_gop.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_helper.c blkmap: pass information on ISO image to the OS 2025-03-26 13:28:08 +02:00
efi_hii.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_hii_config.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_http.c efi_loader: efi_net: Add support for multiple efi_net_obj 2025-03-10 07:40:17 +01:00
efi_image_loader.c efi_loader: fix pe reloc pointer overrun 2025-01-05 02:30:48 +01:00
efi_ipconfig.c efi_loader: efi_net: Add device path cache 2025-03-10 07:02:25 +01:00
efi_load_initrd.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_load_options.c efi_loader: Remove <common.h> 2023-12-21 08:54:37 -05:00
efi_memory.c efi_loader: allow for removal of memory from the EFI map 2025-03-26 13:28:08 +02:00
efi_net.c efi_loader: efi_net: Add support for multiple efi_net_obj 2025-03-10 07:40:17 +01:00
efi_riscv.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_rng.c efi_loader: fix some function descriptions 2024-09-21 10:54:42 +02:00
efi_root_node.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_runtime.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_setup.c efi_loader: efi_net: Add device path cache 2025-03-10 07:02:25 +01:00
efi_signature.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_smbios.c smbios: copy QEMU tables 2024-01-16 17:05:29 -05:00
efi_string.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_tcg2.c tcg2: decouple eventlog size from efi 2025-01-28 08:59:23 +02:00
efi_unicode_collation.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_var_common.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
efi_var_file.c efi_loader: reduce noisiness if ESP is missing 2024-10-18 16:17:29 +02:00
efi_var_mem.c efi_loader: remove comparisons to string literals from runtime 2025-02-20 09:22:53 +01:00
efi_var_seed.S efi_loader: pre-seed UEFI variables 2020-07-16 12:37:02 +02:00
efi_variable.c include: export uuid.h 2024-09-12 17:35:37 +02:00
efi_variable_tee.c efi_loader: remove comparisons to string literals from runtime 2025-02-20 09:22:53 +01:00
efi_watchdog.c efi_loader: use LOGC_EFI consistently 2025-01-26 11:06:56 +01:00
elf_efi.ldsi efi_loader: Move .dynamic out of .text in EFI 2025-03-17 09:22:06 +01:00
helloworld.c efi_loader: Show FirmwareVendor and FirmwareRevision in helloworld 2024-10-09 22:04:56 -06:00
initrddump.c efi_loader: rename struct efi_initrd_dp to efi_lo_dp_prefix 2024-06-10 11:43:37 +02:00
Kconfig fs: fat: add rename 2025-03-07 11:50:22 -06:00
Makefile efi_loader: efi_net: add EFI_HTTP_PROTOCOL 2024-12-04 12:24:38 +01:00
smbiosdump.c efi_loader: Mark static functions in smbiosdump 2024-10-30 21:45:51 +01:00
testapp.c efi_loader: Add a test app 2024-11-09 09:59:41 +01:00