summaryrefslogtreecommitdiff
path: root/lib/efi_loader
AgeCommit message (Collapse)Author
2018-12-03efi_loader: bootmgr: add load option helper functionsAKASHI Takahiro
In this patch, helper functions for an load option variable (BootXXXX) are added: * efi_deserialize_load_option(): parse a string into load_option data (renamed from parse_load_option and exported) * efi_serialize_load_option(): convert load_option data into a string Those functions will be used to implement efishell command. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-03efi_loader: allow device == NULL in efi_dp_from_name()AKASHI Takahiro
This is a preparatory patch for use in efi_serialize_load_option() as a load option's file_path should have both a device path and a file path. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: Align runtime section to 64kbAlexander Graf
The UEFI spec mandates that runtime sections are 64kb aligned to enable support for 64kb page size OSs. This patch ensures that we extend the runtime section to 64kb to be spec compliant. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: fix simple network protocolHeinrich Schuchardt
We should not call eth_rx() before the network interface is initialized. The services of the simple network protocol should check the state of the network adapter. Add and correct comments. Without this patch i.mx6 system Wandboard Quad rev B1 fails to execute bootefi selftest. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: correctly aligned transmit bufferHeinrich Schuchardt
Calling net_send_packet() requires that the buffer is aligned to a multiple of PKTALIGN (= ARCH_DMA_MINALIGN). The UEFI spec does not require efi_net_transmit() to be called with a buffer with any special alignment. So we have to copy to an aligned buffer. The current coding copies to an aligned buffer only if CONFIG_EFI_LOADER_BOUNCE_BUFFER=y. Many boards like the Odroid C2 do not use a bounce buffer. With the patch we copy to a correctly aligned buffer in all cases. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: macro efi_size_in_pages()Heinrich Schuchardt
When allocating EFI memory pages the size in bytes has to be converted to pages. Provide a macro efi_size_in_pages() for this conversion. Use it in the EFI subsystem and correct related comments. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: eliminate sandbox addressesHeinrich Schuchardt
Do not use the sandbox's virtual address space for the internal structures of the memory map. This way we can eliminate a whole lot of unnecessary conversions. The only conversion remaining is the one when adding known memory. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: Reserve unaccessible memoryAlexander Graf
On some systems, not all RAM may be usable within U-Boot. Maybe the memory maps are incomplete, maybe it's used as workaround for broken DMA. But whatever the reason may be, a platform can say that it does not wish to have its RAM accessed above a certain address by defining board_get_usable_ram_top(). In the efi_loader world, we ignored that hint, mostly because very few boards actually have real restrictions around this. So let's honor the board's wish to not access high addresses during boot time. The best way to do so is by indicating the respective pages as "allocated by firmware". That way, Operating Systems will still use the pages after boot, but before boot no allocation will use them. Reported-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Tested-by: Baruch Siach <baruch@tkos.co.il>
2018-12-02sandbox: smbios: Update to support sandboxSimon Glass
At present this code casts addresses to pointers so cannot be used with sandbox. Update it to use mapmem instead. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02Revert "efi_loader: remove efi_exit_caches()"Alexander Graf
This reverts commit 3170db63c41a2eda6ee6573353bb4de8c7c1b9d5. It reportedly breaks OpenBSD/armv7 booting and I've already received complaints from people that it breaks some Linux armv7 systems as well. We'll have to give this whole caching story a good bit more thought. Reported-by: Jonathan Gray <jsg@jsg.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: use u16* for UTF16 stringsHeinrich Schuchardt
We should be consistent in the types that we use to store Unicode strings. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: SetVirtualAddressMap() should return EFI_UNSUPPORTEDAKASHI Takahiro
See UEFI specification 2.7, section 8.4. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: correct a function prototype of QueryCapsuleCapabilities()AKASHI Takahiro
See UEFI specification v2.7, section 8.5.3. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: correct efi_add_known_memory()Heinrich Schuchardt
If a memory bank is not EFI_PAGE_SIZE aligned efi_add_known_memory() the number of memory pages may be incorrectly calculated. We have to round up the start address and to round down the end address to determine which complete pages are provided by the memory bank. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: Ensure memory allocations are page alignedAlexander Graf
When the max_addr parameter of efi_find_free_memory() is within bounds of an existing map and fits the reservation, we just return that address as allocation value. That breaks however if max_addr is not page aligned. So ensure that it always comes to us page aligned, simplifying the allocation logic. Without this, I've seen breakage where we were allocating pages at -1U (32bit) which fits into a region that spans beyond 0x100000000. In that case, we would return 0xffffffff as a valid memory allocation, although we usually do guarantee they are all page aligned. Fix this by aligning the max address argument always. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: Handle RELA absolute relocations properlyAlexander Graf
With RELA absolute relocations, the relocation target contains our link offset which we need to remove from the equation again. We did this properly in the relative relocation path, but not in the absolute one. So let's do this for the absolute one as well. That way, u-boot can have a TEXT_OFFSET of != 0 and still relocate itself properly. This fixes a bug where efi_loader did not work on the RISC-V QEMU port. With this patch, I can successfully run UEFI applications on the RISC-V QEMU port. Reported-by: Auer, Lukas <lukas.auer@aisec.fraunhofer.de> Signed-off-by: Alexander Graf <agraf@suse.de> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2018-12-02efi_loader: fix typosHeinrich Schuchardt
Fix typos in EFI subsystem comments. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: fix typos in efi_device_path.cHeinrich Schuchardt
Fix some typos in comments. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: add efi_dp_from_name()AKASHI Takahiro
Factor out efi_set_bootdev() and extract efi_dp_from_name(). This function will be used to set a boot device in efishell command. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: UninstallMultipleProtocolInterfaces error codeHeinrich Schuchardt
If UninstallMultipleProtocolInterfaces fails, we sometimes return the wrong status code. The UEFI spec mandates to always return EFI_INVALID_PARAMETER. Update unit test. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_selftest: use CR LF in helloworldHeinrich Schuchardt
The UEFI spec defines that a line feed moves the cursor to the next line and (only) a carriage return moves the cursor to the beginning of the line. So we should issue CR LF when we want to get to the start of the next line. Add some comments. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: rename parent to headerHeinrich Schuchardt
Rename the component parent of some EFI objects to header. This avoids misunderstandings. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: eliminate handle memberHeinrich Schuchardt
A pointer to a struct efi_object is a handle. We do not need any handle member in this structure. Let's eliminate it. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: typedef struct efi_object *efi_handle_tHeinrich Schuchardt
All our handles point to a struct efi_object. So let's define the efi_handle_t accordingly. This helps us to discover coding errors much more easily. This becomes evident by the corrections to the usage of handles in this patch. Rename variable image_handle to image_obj where applicable. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: delete handlesHeinrich Schuchardt
When the last protocol interface has been uninstalled remove the handle. Adjust ReinstallProtocol so that it does not remove the handle. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02efi_loader: implement EFI_RESET_SHUTDOWN at boot timeHeinrich Schuchardt
Allow an EFI application to shut down the system. If EFI_RESET_SHUTDOWN is issued call do_poweroff(). Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-16efi_loader: efi_dp_get_next_instance() superfluous statementHeinrich Schuchardt
Remove a superfluous statement in efi_dp_get_next_instance(). Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-16efi_loader: fix typo in efi_boottime.cHeinrich Schuchardt
%s/conncected/connected/ Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-16efi_loader: Fix warning in efi_load_image()Tom Rini
As observed with clang: lib/efi_loader/efi_boottime.c:1624:7: warning: variable 'info' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] if (ret != EFI_SUCCESS) ^~~~~~~~~~~~~~~~~~ lib/efi_loader/efi_boottime.c:1653:7: note: uninitialized use occurs here free(info); ^~~~ lib/efi_loader/efi_boottime.c:1624:3: note: remove the 'if' if its condition is always false if (ret != EFI_SUCCESS) ^~~~~~~~~~~~~~~~~~~~~~~ lib/efi_loader/efi_boottime.c:1602:31: note: initialize the variable 'info' to silence this warning struct efi_loaded_image *info; ^ = NULL Rather than change how we unwind the function it makes the most sense to initialize info to NULL so that we can continue to pass it to free(). Fixes: c982874e930d ("efi_loader: refactor efi_setup_loaded_image()") Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-16efi_loader: remove lcd.h from efi_net.cHeinrich Schuchardt
Remove superfluous include. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-16efi_loader: memory leak in efi_set_variable()Heinrich Schuchardt
Do not leak native_name if out of memory. This addresses CoverityScan CID 184095. Reported-by: Tom Rini <trini@konsulko.com> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-16efi_loader: superfluous statement in is_dir()Heinrich Schuchardt
When is_dir() is called we have already execute set_blk_dev(fh). So don't call it again. This fixes CoverityScan CID 184093. Reported-by: Tom Rini <trini@konsulko.com> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-16efi_loader: return type efi_console_register()Heinrich Schuchardt
Use a return type that can encompass the return value. This fixes CoverityScan CID 184090. Reported-by: Tom Rini <trini@konsulko.com> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-16efi_loader: efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, ...)Heinrich Schuchardt
The first parameter of efi_allocate_pool is a memory type. It cannot be EFI_ALLOCATE_ANY_PAGES. Use EFI_BOOT_SERVICES_DATA instead. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-16efi_loader: correct signature of GetPosition, SetPositionHeinrich Schuchardt
The UEFI spec requires that file positions are passed as u64 in GetPosition() and SetPosition(). Check if the file handle points to a directory in GetPosition(). Provide a unit test for GetPosition() and SetPosition(). Fix Coverity warning CID 184079 (CONSTANT_EXPRESSION_RESULT). Add comments. Fixes: b6dd57773719 ("efi_loader: use correct types in EFI_FILE_PROTOCOL") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-16efi_loader: fix relocation on x86_64Heinrich Schuchardt
Currently the relocation of the EFI runtime on x86_64 fails. This renders the EFI subsystem unusable. The ELF relocation records for x86_64 contain an addend field. Always write the function name into error messages related to the EFI runtime relocation. Break an excessively long line. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: refactor efi_setup_loaded_image()Heinrich Schuchardt
Create the handle of loaded images and the EFI_LOADED_IMAGE_PROTOCOL inside efi_setup_loaded_image(). Do not use local variables. Currently we expect the loaded image handle to point to the loaded image protocol. Additionally we have appended private fields to the protocol. With the patch the handle points to a loaded image object and the private fields are added here. This matches how we handle the net and the gop object. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: remove efi_exit_caches()Heinrich Schuchardt
Since GRUB patch d0c070179d4d ("arm/efi: Switch to arm64 linux loader", 2018-07-09) we do not need a workaround for GRUB on 32bit ARM anymore. So let's eliminate function efi_exit_caches(). This will require Linux distributions to update grub-efi-arm to the GRUB git HEAD (a tag containing the aforementioned GRUB patch is not available yet). Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: remove redundant statementHeinrich Schuchardt
ascii2unicode() always ends the u16 string with '\0'. Remove redundant assignment. Add description for efi_str_to_u16() and ascii2unicode(). Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: create root nodeHeinrich Schuchardt
Currently we assign a lot of protocols to loaded images though these protocols are not related to them. Instead they should be installed on a separate handle. Via the device path it is the parent to the devices like the network adapter. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: avoid out of bound access in efi_get_variable()Heinrich Schuchardt
In efi_get_variable() a string is longer than the allocated space which results in overwriting the linked list of malloc(). The prefixes used for variables are 41 characters long, e.g. efi_67029eb5-0af2-f6b1-da53-fcb566dd1ce6_ Change PREFIX_LEN to 41. Fixes: faff21556748 ("efi_loader: remove limit on variable length") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: query serial console size reliablyHeinrich Schuchardt
Not all terminals understand CSI [18t for querying the console size. We should adhere to escape sequences documented in the console_codes manpage and the ECMA-48 standard. So here we follow a different approach. We position the cursor to the bottom right and query its position. Before leaving the function we restore the original cursor position. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: Merge memory map entriesAlexander Graf
We currently do not combine memory entries that are adjacent and have the same attributes. The problem with that is that our memory map can easily grow multiple hundreds of entries in a simple UEFI Shell environment. So let's make sure we always combine all entries to make the memory map as small as possible. That way every other piece of code that loops through it should also gain some nice speed ups. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: check parameter new_handle of efi_file_open()Heinrich Schuchardt
We should not check parameter file twice. We should check parameter new_handle. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: terminal left upper corner is [1, 1]Heinrich Schuchardt
For the VT102 and the Linux console the left upper corner is [1, 1]. EFI uses [0, 0] as left upper corner. Check parameters of the SetCursorPosition() service. Use CSI H like EDK2 for positioning. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: more debug info for efi_file_getinfo()Heinrich Schuchardt
efi_file_getinfo() is called with a GUID. In EFI_ENTRY use %pUl as format type. This way the GUID is printed in debug mode. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi: Correct the operation of efi_file_write()Simon Glass
We should not directly cast between pointers and addresses since it breaks sandbox. Fix this and simplify the code in file_read(). Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi: sandbox: Enable EFI loader build for sandboxSimon Glass
This allows this feature to build within sandbox. This is useful for testing. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: loosen check of parameters of efi_file_open()Heinrich Schuchardt
The UEFI spec requires that attributes are only set for when EFI_FILE_MODE_CREATE is set in open_mode. The SCT tries to read a directory with EFI_FILE_DIRECTORY. As EDK2 allows this we should not be more strict. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23efi_loader: provide description of file_open()Heinrich Schuchardt
Replace urban slang by proper description. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
generated by cgit (git 2.34.1) at 2024-12-29 15:34:27 +0000