summaryrefslogtreecommitdiff
path: root/lib/efi_loader
AgeCommit message (Collapse)Author
2024-12-04efi_loader: net: add support to send http requests and parse http headersAdriano Cordova
Add network-stack agnostic way to send an http request and parse http headers from efi drivers. This uses wget as a backend and communicates with it via efi_wget_info. The function efi_net_do_request allocates a buffer on behalf of an efi application using efi_alloc and passes it to wget to receive the data. If the method is GET and the buffer is too small, it re-allocates the buffer based on the last received Content-Length header and tries again. If the method is HEAD it just issues one request. So issuing a HEAD request (to update Content-Length) and then a GET request is preferred but not required. The function efi_net_parse_headers parses a raw buffer containing an http header into an array of EFI specific 'http_header' structs. Signed-off-by: Adriano Cordova <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2024-12-04efi_loader: net: set EFI bootdevice device path to HTTP when loaded from wgetAdriano Cordova
Set the device path of the efi boot device to an HTTP device path (as formed by efi_dp_from_http) when the next boot stage is loaded using wget (i.e., when wget is used with wget_info.set_bootdev=1). When loaded from HTTP, the device path should account for it so that the next boot stage is aware (e.g. grub only loads its http stack if it itself was loaded from http, and it checks this from its device path). Signed-off-by: Adriano Cordova <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2024-12-04efi_loader: device_path: add support for HTTP device pathAdriano Cordova
Add efi_dp_from_http to form a device path from HTTP. The device path is the concatenation of the device path returned by efi_dp_from_ipv4 together with an URI node and an END node. Signed-off-by: Adriano Cordova <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-12-04efi_loader: efi_net: add efi_net_set_addr, efi_net_get_addrAdriano Cordova
Add the functions efi_net_set_addr and efi_net_get_addr to set and get the ip address from efi code in a network agnostic way. This could also go in net_common, or be compiled conditionally for each network stack. Signed-off-by: Adriano Cordova <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2024-12-04efi_loader: add IPv4() to device path to text protocolHeinrich Schuchardt
Implement Ipv4() node support in the device path to text protocol. Signed-off-by: Adriano Cordova <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]>
2024-12-04efi_loader: device_path: add efi_dp_from_ipv4Adriano Cordova
Add efi_dp_from_ipv4 to form a device path from an ipv4 address. Signed-off-by: Adriano Cordova <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-12-04net: wget: let wget_with_dns work with dns disabledAdriano Cordova
This was marked as TODO in the code: - Enable use of wget_with_dns even if CMD_DNS is disabled if the given uri has the ip address for the http server. - Move the check for CMD_DNS inside wget_with_dns. - Rename wget_with_dns to wget_do_request Signed-off-by: Adriano Cordova <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Jerome Forissier <[email protected]>
2024-12-02sandbox: efi_loader: Correct use of addresses as pointersSimon Glass
The cache-flush function is incorrect which causes a crash in the remoteproc tests with arm64. Fix both problems by using map_sysmem() to convert an address to a pointer and map_to_sysmem() to convert a pointer to an address. Also update the image-loader's cache-flushing logic. Signed-off-by: Simon Glass <[email protected]> Fixes: 3286d223fd7 ("sandbox: implement invalidate_icache_all()") Acked-by: Heinrich Schuchardt <[email protected]> Changes in v6: - Re-introduce Changes in v2: - Drop message about EFI_LOADER arch/sandbox/cpu/cache.c | 8 +++++++- drivers/remoteproc/rproc-elf-loader.c | 18 +++++++++++------- lib/efi_loader/efi_image_loader.c | 3 ++- 3 files changed, 20 insertions(+), 9 deletions(-) Reviewed-by: Heinrich Schuchardt <[email protected]>
2024-11-30Revert "efi_memory: do not add U-Boot memory to the memory map"Ilias Apalodimas
This reverts commit ("commit a68c9ac5d8af ("efi_memory: do not add U-Boot memory to the memory map"). This code was removed when the EFI subsystem started using LMB calls for the reservations. In hindsight it unearthed two problems. The e820 code is adding u-boot memory as EfiReservedMemory while it should look at what LMB added and decide instead of blindly overwriting it. The reason this worked is that we marked that code properly late, when the EFI came up. But now with the LMB changes, the EFI map gets added first and the e820 code overwrites it. The second problem is that we never mark SetVirtualAddressMap as runtime code, which we should according to the spec. Until we fix this the current hack can't go away, at least for architectures that *need* to call SVAM. More specifically x86 currently requires SVAM and sets the NX bit for pages not marked as *_CODE. So unless we do that late, it will crash trying to execute from non-executable memory. It's also worth noting that x86 calls SVAM late in the boot, so this will work until someone decides to overwrite/use BootServicesCode from the OS. Notably arm64 disables it explicitly if the VA space is > 48bits, so doesn't suffer from any of these problems. This doesn't really deserve a fixes tag, since it brings back a hack to remedy a situation that was wrong long before that commit, but in case anyone hits the same bug ... Simon sent the original revert in the link, but we need a proper justification for it. Link: https://lore.kernel.org/u-boot/[email protected]/ Signed-off-by: Ilias Apalodimas <[email protected]> Acked-by: Sughosh Ganu <[email protected]> Reported-by: Simon Glass <[email protected]>
2024-11-24Merge patch series "Fix device removal order for Apple dart iommu"Tom Rini
Janne Grunau <[email protected]> says: Starting with v2024.10 dev_iommu_dma_unmap calls during device removal trigger a NULL pointer dereference in the Apple dart iommu driver. The iommu device is removed before its user. The sparsely used DM_FLAG_VITAL flag is intended to describe this dependency. Add it to the driver. Adding this flag is unfortunately not enough since the boot routines except the arm one simply remove all drivers. Add and use a new function which calls dm_remove_devioce_flags(DM_REMOVE_ACTIVE_ALL | DM_REMOVE_NON_VITAL); dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL); to ensure this order dependency is head consistently. Link: https://lore.kernel.org/r/[email protected]
2024-11-24dm: Add dm_remove_devices_active() for ordered device removalJanne Grunau
This replaces dm_remove_devices_flags() calls in all boot implementations to ensure non vital devices are consistently removed first. All boot implementation except arch/arm/lib/bootm.c currently just call dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL). This can result in crashes when dependencies between devices exists. The driver model's design document describes DM_FLAG_VITAL as "indicates that the device is 'vital' to the operation of other devices". Device removal at boot should follow this. Instead of adding dm_remove_devices_flags() with (DM_REMOVE_ACTIVE_ALL | DM_REMOVE_NON_VITAL) everywhere add dm_remove_devices_active() which does this. Fixes a NULL pointer deref in the apple dart IOMMU driver during EFI boot. The xhci-pci (driver which depends on the IOMMU to work) removes its mapping on removal. This explodes when the IOMMU device was removed first. dm_remove_devices_flags() is kept since it is used for testing of device_remove() calls in dm. Signed-off-by: Janne Grunau <[email protected]>
2024-11-24lmb: Correctly unmap and free memory on errorsIlias Apalodimas
We never free and unmap the memory on errors and we never unmap it when freeing it. The latter won't cause any problems even on sandbox, but for consistency always use unmap_sysmem() Fixes: commit 22f2c9ed9f53 ("efi: memory: use the lmb API's for allocating and freeing memory") Reviewed-by: Heinrich Schuchardt <[email protected]> Signed-off-by: Ilias Apalodimas <[email protected]>
2024-11-23efi_loader: allow EFI_LOADER_BOUNCE_BUFFER on all architecturesHeinrich Schuchardt
Commit 775f7657ba58 ("Kconfig: clean up the efi configuration status") by mistake revoked commit dcd1b63b7072 ("efi_loader: allow EFI_LOADER_BOUNCE_BUFFER on all architectures"). Fixes: 775f7657ba58 ("Kconfig: clean up the efi configuration status") Signed-off-by: Heinrich Schuchardt <[email protected]> Tested-by: Loic Devulder <[email protected]>
2024-11-23efi_loader: simplify efi_tcg2_hash_log_extend_event()Heinrich Schuchardt
The value of variable nt is never used. Just use NULL when calling efi_check_pe(). The API function is not expected to write to the console. Such output might have unwanted side effects on the screen layout of an EFI application. Leave error handling to the caller. Signed-off-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-11-09efi_loader: Drop sandbox PXE architectureSimon Glass
Rather than returning 0, just return an error, since sandbox is not used with PXE at present. Signed-off-by: Simon Glass <[email protected]>
2024-11-09sandbox: Report host default-filename in native modeSimon Glass
When the --native flag is given, pretend to be running the host architecture rather than sandbox. Allow the same control for PXE too. Signed-off-by: Simon Glass <[email protected]>
2024-11-09efi_loader: Move get_efi_pxe_arch() to efi_helperSimon Glass
Move this function from the EFI bootmeth to the common efi_helper file. No functional change is intended. Signed-off-by: Simon Glass <[email protected]>
2024-11-09efi: Move default filename to a functionSimon Glass
Use a function to obtain the device EFI filename, so that we can control how sandbox behaves. Signed-off-by: Simon Glass <[email protected]>
2024-11-09efi_loader: Add a test appSimon Glass
Add a simple app to use for testing. This is intended to do whatever it needs to for testing purposes. For now it just prints a message and exits boot services. There was a considerable amount of discussion about whether it is OK to call exit-boot-services and then return to U-Boot. This is not normally done in a real application, since exit-boot-services is used to completely disconnect from U-Boot. For now, this part is skipped. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2024-11-09efi_loader: Change efi_dp_from_mem() to use sizeMoritz Fischer
All call sites are using size rather than end addresses, so instead - as previously done - calculating an end address everywhere, just modify the function to use size and internally calculate the end address Cc: Heinrich Schuchardt <[email protected]> Cc: Ilias Apalodimas <[email protected]> Cc: Patrick Wildt <[email protected]> Signed-off-by: Moritz Fischer <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2024-11-01Merge patch series "fs: ext4: implement opendir, readdir, closedir"Tom Rini
Heinrich Schuchardt <[email protected]> says: With this series opendir, readdir, closedir are implemented for ext4. These functions are needed for the UEFI sub-system to interact with the ext4 file system. To reduce code growth the functions are reused to implement the ls command for ext4. A memory leak in ext4fs_exists is resolved. ext4fs_iterate_dir is simplified by removing a redundant pointer copy. Link: https://lore.kernel.org/r/[email protected]
2024-11-01efi_loader: fix GetInfo and SetInfoHeinrich Schuchardt
* Some of our file system drivers cannot report a file size for directories. Use a dummy value in this case. * For SetInfo the UEFI spec requires to ignore the file size field. Signed-off-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2024-10-31lib: efi_loader: Fix efi_dp_from_mem() callsMoritz Fischer
The function expects an end address but is being called with an size instead. Fixes: 6422820ac3 ("efi_loader: split unrelated code from efi_bootmgr.c") Reviewed-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]> Signed-off-by: Moritz Fischer <[email protected]> Reviewed-by: Patrick Wildt <[email protected]>
2024-10-31efi_loader: Make tcg2_uninit() staticIlias Apalodimas
This function is only used locally, so make it static and quiesce the W=1 warning Signed-off-by: Ilias Apalodimas <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2024-10-30efi_loader: Remove unused diskidIlias Apalodimas
That variable is defined and assigned a value in two functions but it's never used. Signed-off-by: Ilias Apalodimas <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2024-10-30efi_loader: Mark static functions in smbiosdumpIlias Apalodimas
Mark functions that are only used locally as static and quiesce W=1 warnings Signed-off-by: Ilias Apalodimas <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2024-10-30efi_loader: Mark static function in dumpdtbIlias Apalodimas
A few functions are only used locally but miss the 'static' keyword. Add it and quiesce W=1 build wanrings Signed-off-by: Ilias Apalodimas <[email protected]>
2024-10-30efi_loader: Mark efi_bootmgr_release_uridp as staticIlias Apalodimas
This is only used locally so make it static Suggested-by: Andy Shevchenko <[email protected]> Signed-off-by: Ilias Apalodimas <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]>
2024-10-30efi_loader: Simplify efi_free_pages()Ilias Apalodimas
We currently call efi_free_pages() with a notify flag and explicitly update the efi memory map. That's not needed as lmb_free_flags() will do that for us if the LMB_NONOTIFY flag is removed Signed-off-by: Ilias Apalodimas <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2024-10-30efi_loader: fix CONFIG_EFI_HTTP dependenciesHeinrich Schuchardt
CONFIG_CMD_DNS and CONFIG_CMD_WGET depend on CONFIG_CMD_NET. CONFIG_CMD_NET depends on CONFIG_NET or CONFIG_NET_LWIP. We shall only enable CONFIG_EFI_HTTP if there is network support. We have to select CONFIG_CMD_NET. Fixes: d7d07a8b508b ("efi_loader: support boot from URI device path") Signed-off-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Simon Glass <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-10-29lmb: Remove lmb_alloc_flags()Ilias Apalodimas
lmb_alloc_flags() & lmb_alloc_base_flags() are just a wrappers for _lmb_alloc_base(). Since the only difference is the max address of the allowed allocation which _lmb_alloc_base() already supports with the LMB_ALLOC_ANYWHERE flag, remove one of them. Keep the lmb_alloc_base_flags() which also prints an error on failures and adjust efi_allocate_pages() to only use one of them. While at it clean up the duplicate function description from the header file. Signed-off-by: Ilias Apalodimas <[email protected]>
2024-10-18efi_loader: remove ERROR:, WARNING: prefixes in messagesHeinrich Schuchardt
We should not write "ERROR:" or "WARNING:" when using log_err() or log_warning(). These prefixed don't provide additional information. Reviewed-by: Ilias Apalodimas <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]>
2024-10-18efi_loader: add missing lf in error messageHeinrich Schuchardt
Messages written with log_err() should terminate with a linefeed. Reviewed-by: Ilias Apalodimas <[email protected]> Reviewed-by: Simon Glass <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]>
2024-10-18efi_loader: reduce noisiness if ESP is missingHeinrich Schuchardt
EFI variables can be stored in a file on the EFI system partition. If that partition is missing we are writing two error messages per variable. This is too noisy. Just warn once about the missing ESP. Signed-off-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-10-18efi_loader: avoid #ifdef in efi_setup.cHeinrich Schuchardt
We prefer `if` over `#ifdef` in our code. Eliminate #ifdef statements in efi_setup.c. Reviewed-by: Ilias Apalodimas <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]>
2024-10-15efi_memory: rename variable to highlight overlap with free memorySughosh Ganu
The variable overlap_only_ram is used to specify that the new memory region that is being created needs to come from the free memory pool -- this is done by carving out the memory region from the free memory. The name is a bit confusing though, as other allocated memory regions, like boot-services code and data are also part of the RAM memory. Rename the variable to overlap_conventional to highlight the fact that it is the free/conventional memory that is being referred to in this context. Signed-off-by: Sughosh Ganu <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2024-10-15efi_memory: do not add RAM memory to the memory mapSughosh Ganu
The EFI_CONVENTIONAL_MEMORY type, which is the usable RAM memory is now being managed by the LMB module. Remove the addition of this memory type to the EFI memory map. This memory now gets added to the EFI memory map as part of the LMB memory map update event handler. Signed-off-by: Sughosh Ganu <[email protected]> Reviewed-by: Simon Glass <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-10-15efi_memory: do not add U-Boot memory to the memory mapSughosh Ganu
The memory region occupied by U-Boot is reserved by LMB, and gets added to the EFI memory map through a call from the LMB module. Remove this superfluous addition to the EFI memory map. Signed-off-by: Sughosh Ganu <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-10-15lmb: notify of any changes to the LMB memory mapSughosh Ganu
In U-Boot, LMB and EFI are two primary modules who provide memory allocation and reservation API's. Both these modules operate with the same regions of memory for allocations. Use the LMB memory map update event to notify other interested listeners about a change in it's memory map. This can then be used by the other module to keep track of available and used memory. There is no need to send these notifications when the LMB module is being unit-tested. Add a flag to the lmb structure to indicate if the memory map is being used for tests, and suppress sending any notifications when running these unit tests. Signed-off-by: Sughosh Ganu <[email protected]>
2024-10-15efi: memory: use the lmb API's for allocating and freeing memorySughosh Ganu
Use the LMB API's for allocating and freeing up memory. With this, the LMB module becomes the common backend for managing non U-Boot image memory that might be requested by other modules. Signed-off-by: Sughosh Ganu <[email protected]>
2024-10-09efi_loader: Show FirmwareVendor and FirmwareRevision in helloworldSimon Glass
Show the firmware vendor and revision to make it clear which firmware is used, e.g. whether U-Boot is providing the boot services. The output will look like Firmware vendor: Das U-Boot Firmware revision: 20241000 Signed-off-by: Simon Glass <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]>
2024-10-09efi_loader: Shorten the app rules furtherSimon Glass
Add a way to factor out the CFLAGS changes for each app, since they are all the same. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-10-09efi_loader: Shorten the app rulesSimon Glass
We have quite a few apps now, so create a way to specify them as a list rather than repeating the same rules again and again. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-10-09efi_loader: Rename and move CMD_BOOTEFI_HELLO_COMPILESimon Glass
This is not actually a command so the name is confusing. Use BOOTEFI_HELLO_COMPILE instead. Put it in the efi_loader directory with the other such config options. The link rule (for $(obj)/%_efi.so) in scripts/Makefile.lib handles pulling in efi_crt0.o and efi_reloc.o so drop the 'extra' rules. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-10-09efi_leader: delete rng-seed if having EFI RNG protocolHeinrich Schuchardt
For measured be boot we must avoid any volatile values in the device-tree. We already delete /chosen/kaslr-seed if we provide and EFI RNG protocol. Additionally remove /chosen/rng-seed provided by QEMU or U-Boot. Reviewed-by: Ilias Apalodimas <[email protected]> Signed-off-by: Heinrich Schuchardt <[email protected]>
2024-09-30Merge tag 'v2024.10-rc6' into nextTom Rini
Prepare v2024.10-rc6
2024-09-21efi_loader: fix some function descriptionsHeinrich Schuchardt
* The function name must be provided in the description. * The function name must match the name used in the description. Signed-off-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-09-19fwu: print a message if empty capsule checks failSughosh Ganu
When dealing with processing of the empty capsule, the capsule gets applied only when the checks for the empty capsule pass. Print a message to highlight if empty capsule checks fail, and return an error value, similar to the normal capsules. Signed-off-by: Sughosh Ganu <[email protected]> Tested-by: Michal Simek <[email protected]> Signed-off-by: Ilias Apalodimas <[email protected]>
2024-09-12efi_loader: Put back copyright messageSimon Glass
This was lost in a later commit, so add it back. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2024-09-12efi_loader: Use puts() in cout so that console recording worksSimon Glass
At present EFI output to the console uses fputs() which bypasses the console-recording feature. This makes it impossible for tests to check the output of an EFI app. There doesn't seem to be any need to do this bypass, so adjust it to simply use the puts() function. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>