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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 <xypron.glpk@gmx.de>
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The statement '#define LOG_CATEGORY LOGL_ERR' makes not sense. LOGL_ERR is
not a LOG_CATEGORY. Remove the statement.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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As the UEFI shell requires the HII protocols let's enable them by default.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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We should not install the HII protocols on every loaded image. It is
sufficient to install them once on the root node.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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In the extended text input protocol CTRL-A - CTRL-Z have to be signaled as
Unicode characters a-z or A-Z depending on the shift state and not as 0x01
to 0x1a.
Update Python unit test.
This patch is required for using the EFI shell `edit` command.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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EFI shell command edit uses the SetInfo() methods to unset the read only
attribute of the file to be edited. So let efi_file_setinfo() return
success in this case.
Return an error if the function is called for to rename or resize a file
as we do not support this yet.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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The EFI shell expects that after opening a file with EFI_FILE_MODE_CREATE
GetInfo() succeeds. Up to now we do not actually create the file when
method Open() of the EFI_FILE_PROTOCOL is called.
If method Open() of the EFI_FILE_PROTOCOL is called with
EFI_FILE_MODE_CREATE and the file does not yet exist, call fs_write() with
a buffer size of zero to actually create the file.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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For debugging it is helpful to know the address of the file handle created
by the Open() method of the EFI file protocol. So let's write it with
EFI_PRINT().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Those two functions will be used later to re-implement do_bootefi_exec().
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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To meet UEFI spec v2.7a section 9.2, we should add
EFI_LOADED_IMAGE_DEVICE_PATH_PROTOCOL to image handle,
instead of EFI_DEVICE_PATH_PROTOCOL.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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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 <xypron.glpk@gmx.de>
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For debug messages inside EFI API functions we should use the EFI_PRINT
macro which gives us well aligned output like:
EFI: Entry efi_allocate_pool_ext(4, 14, 000000007edd7718)
EFI: efi_add_memory_map: 0x7dcfa000 0x1 4 yes
EFI: Exit: efi_allocate_pool_ext: 0
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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For debug messages inside EFI API functions we should use the EFI_PRINT
macro which gives us well aligned output like:
EFI: Entry efi_get_variable("PlatformLang" ...)
EFI: get 'efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_PlatformLang'
EFI: Exit: efi_get_variable: 14
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Add parameter checks in the StartImage() and Exit() boottime services:
- check that the image handle is valid and has the loaded image protocol
installed
- in StartImage() record the current image
- in Exit() check that the image is the current image
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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To avoid forward declarations move efi_start_image() and efi_exit() down.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Use a checksum to validate that efi_free_pool() is only called for memory
allocated by efi_allocated_pool().
Add a plausibility check to efi_free_pages() checking that the address
passed is page aligned.
Update related function comments to match Sphinx style.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Currently, image's image_base points to an address where the image was
temporarily uploaded for further loading. Since efi_loader relocates
the image to final destination, image_base and image_size should reflect
that.
This bug was detected in UEFI SCT, "Loaded Image Protocol Test - test 2,"
which shows that 'Unload' function doesn't fit into a range suggested by
image_base and image_size.
TestCase/UEFI/EFI/Protocol/LoadedImage/BlackBoxTest/
LoadedImageBBTestMain.c:1002
Changes in this patch also includes:
* reverts a patch, "efi_loader: save image relocation address
and size" since newly added fields are no longer needed.
* copy PE headers as well since those information will be needed
for module loading, in particular, at gurb.
(This bug was reported by Heinrich.)
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Rebase patch.
Remove unused fields from struct efi_loaded_image_obj.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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See UEFI v2.7, section 3.1.2 for details of the specification.
With efidebug command, you can run any EFI boot option as follows:
=> efi boot add 1 SHELL ...
=> efi boot add 2 HELLO ...
=> efi boot order 1 2
=> efi bootmgr
(starting SHELL ...)
=> efi boot next 2
=> efi bootmgr
(starting HELLO ...)
=> env print -e
<snip ...>
BootCurrent: {boot,run}(blob)
00000000: 02 00 ..
BootOrder: {boot,run}(blob)
00000000: 01 00 02 00 ....
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Commit 0e18f584de59 ("efi_loader: LoadImage: always allocate new pages")
ensured that whether we load an image from file or from memory we end up
with the same number of newly allocated buffers. But essentially we ended
up with one buffer too many in both cases:
efi_load_pe() copies and rebases the UEFI image.
We do not need the buffer with the file contents afterwards.
Fixes: 0e18f584de59 ("efi_loader: LoadImage: always allocate new pages")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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We currently only support EFI_FILE_PROTOCOL_REVISION while
UEFI specs 2.4 - 2.7 prescribe EFI_FILE_PROTOCOL_REVISION2.
Add a todo.
Add missing constants for the EFI file protocol revision.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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printf("%ls", ..) expects u16 * as argument to print. There is not need for
a conversion to wchar_t *.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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It does not make any sense to check if a pointer is NULL if we have
dereferenced it before.
Reported-by: Coverity (CID 185827)
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Add a missing return statement in efi_get_next_variable_name().
Reported-by: Coverity (CID 185834)
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Avoid an endless loop in add_strings_package().
Suggested-by: Takahiro Akashi <takahiro.akashi@linaro.org>
Reported-by: Coverity (CID 185833)
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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efi_allocate_pages() expects a (uint64_t *) pointer to pass the address of
the assigned memory. If we pass the address of a pointer here, an illegal
memory access occurs on 32bit systems.
Fixes: 282a06cbcae8 ("efi_loader: Expose U-Boot addresses in memory map
for sandbox")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Function term_read_reply tries to read from the serial console until
the end_char was read. This can hang forever if we are, for some reason,
not able to read the full response (e.g. serial buffer too small,
frame error). This patch moves the timeout detection into
term_read_reply() to assure we will make progress.
Fixes: 6bb591f704 ("efi_loader: query serial console size reliably")
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Throw missing error when an incomplete reply for the cursor position is
received.
Change type of argument of term_get_char() *s32. This renders the function
reusable in efi_cin_read_key().
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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When package types are not supported by our implementation of the HII
database protocol supported error messages are displayed.
Essentially the output is only needed for debugging. By using EFI_PRINT()
the messages are only written for in debug mode and with correct
indentation.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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In new_package_list() we call new_packagelist() to create a new package
list. Next we try to add the packages which fails for form packages. Due
to this error we call free_packagelist(). Now in free_packagelist()
list_del() is called for an uninitialized field hii->link. This leads to
changing random memory addresses.
To solve the problem move the initialization of hii->link to
new_packagelist().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
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In the `efidebug boot add` command we do not want an unsolicited leading
backslash added to the file name.
There is no good reason to mark a loaded file with a backslash as absolute.
Anyway when reading files the file name will be interpreted as relative to
root directory of the device.
So let's get rid of this backslash.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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See UEFI specification v2.7a, section 3.1.3, "Load Option Processing."
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Since commit 914df75b0c97 ("efi_loader: fix EFI entry counting")
entry_count is already set to 1 before efi_bootmgr_load() is called. So we
should not increment it when entering the function.
Without the patch an assert error occurs in efi_get_variable() if DEBUG is
defined.
Fixes: 914df75b0c97 ("efi_loader: fix EFI entry counting")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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For booting via `bootefi bootmgr` it is necessary that the EFI variable
BootOrder is defined. Provide a diagnostic message if the variable is
missing.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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If the last block in the relocation table contains only a single
relocation, the current coding ignores it.
Fix the determination of the end of the relocation table.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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- Add missing function descriptions.
- Update existing function descriptions to match Sphinx style.
- Add lib/efi_loader/efi_image_loader.c to the input files for Sphinx
generated documentation.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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`bootefi selftest` fails on qemu-x86_defconfig if efi_selftest() is not
invoked using EFI_CALL().
Likewise we call the entry point of EFI payloads with
EFI_CALL(efi_start_image()).
entry_count indicates if we are in U-Boot (1) or in EFI payload code (0).
As we start in U-Boot code the initial value has to be 1.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Remove the duplicate code in efi_do_enter() and use efi_start_image() to
start the image invoked by the bootefi command.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Up to now efi_load_pe() returns the entry point or NULL in case of an
error. This does not allow to return correct error codes from LoadImage().
Let efi_load_pe() return a status code and fill in the entry point in the
corresponding field of the image object.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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If we want to properly unload images in Exit() the memory should always be
allocated in the same way. As we allocate memory when reading from file we
should do the same when the original image is in memory.
A further patch will be needed to free the memory when Exit() is called.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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In case of an error we should set the returned pointers to NULL. This
ensures that an illegal free does not occur even if the caller calls
free() for the handles.
If protocols cannot be installed, release all resources.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Add more comments for efi_file_from_path().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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If the path passed to efi_dp_split_file_path() does not contain a
reference to a file it returns EFI_OUT_OF_RESOURCES. This does not properly
indicate the kind of the problem that occurred. Return
EFI_INVALID_PARAMETER instead.
Update function description.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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We check the existence of files with fs_exist(). This function calls
fs_close(). If we do not set the active block device again fs_opendir()
fails and we do not set the flag EFI_FILE_DIRECTORY. Due to this error the
`cd` command in the EFI shell fails.
So let's add the missing set_blk_dev(fh) call.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Heinrich ran into issues with HII and iPXE which lead to #SErrors on
his Odroid-C2 system. We definitely do not want to regress just yet,
so let's not expose the HII protocols by default.
Instead, let's make it a config option that people can play with
This way, we can stabilize the code in tree without breaking any
users.
Once someone figures out, why this breaks iPXE (probably a NULL
dereference), we can enable it by default.
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
v1 -> v2:
- Remove HII selftest as well
v2 -> v3:
- Make config option
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For correct indention use EFI_PRINT() instead of debug().
For printing efi_uintn_t or size_t use the %zu or %zx format code.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
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This patch is a place holder for HII configuration routing protocol and
HII configuration access protocol.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Allow for handling keyboard layout package in HII database protocol.
A package can be added or deleted in HII database protocol, but
we don't set 'current' keyboard layout as there is no driver that
requests a keyboard layout.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Allow for handling GUID package in HII database protocol.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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This patch provides enough implementation of the following protocols to
run EDKII's Shell.efi and UEFI SCT:
* EfiHiiDatabaseProtocol
* EfiHiiStringProtocol
Not implemented are:
* ExportPackageLists()
* RegisterPackageNotify()/UnregisterPackageNotify()
* SetKeyboardLayout() (i.e. *current* keyboard layout)
HII database protocol in this patch series can handle only:
* GUID package
* string package
* keyboard layout package
(The other packages, except Device path package, will be necessary
for interactive and graphical UI.)
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Our implementation of GetNextVariableName() relies on
CONFIG_REGEX=y. So EFI_LOADER has to select it.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Our current implementation of GetNextVariableName() first collects all EFI
variables. If none is found at all hexport_r() returns a zero length string
terminated by \0 and the value 1 as number of bytes in the returned buffer.
In this case GetNextVariableName() has to return EFI_NOT_FOUND.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
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