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Pull request for UEFI sub-system for v2019.07-rc5
This pull request provides fixes for event services.
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Up to now we have only been using a flag queued for events. But this does
not satisfy the requirements of the UEFI spec. Events must be notified in
the sequence of decreasing TPL level and within a TPL level in the sequence
of signaling.
Implement a queue for signaled events.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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If any member of the event group is signaled, all members must be set to
signaled and their notification functions have to be queued.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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ExitBootServices() has to stop timer related activity before calling the
events of the EFI_EVENT_GROUP_EXIT_BOOT_SERVICES event group. But our
current implementation was stopping all other events.
All events have to observe the task priority level.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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If an event is already in the signaled state, SignalEvent should not queue
the notification function but simply return EFI_SUCCESS.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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In a following patch efi_signal_event() will only queue an event if it is
not signaled.
Set the is_signaled status to false before signaling the event.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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The bulk of these changes are an effort to unify Tegra186 builds with
builds of prior 64-bit Tegra generations. On top of that there are
various improvements that allow data (such as the MAC address and boot
arguments) to be passed through from early firmware to the kernel on
boot.
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In the UEFI context GUIDs are expected to be rendered in upper case.
The patch uses the formerly unused bit 1 of the parameter str_format
of function uuid_bin_to_str() to indicate if we need upper or lower case
output.
Function uuid_string() in vsprint.c is adjusted to correctly set the bit
depending on the print format code.
%pUb: 01020304-0506-0708-090a-0b0c0d0e0f10
%pUB: 01020304-0506-0708-090A-0B0C0D0E0F10
%pUl: 04030201-0605-0807-090a-0b0c0d0e0f10
%pUL: 04030201-0605-0807-090A-0B0C0D0E0F10
Up to this point only a diagnostic message in mount_ubifs() using '%pUB' is
concerned by the change. Further patches are needed to adjust the UEFI
subsystem.
A unit test is provided inside the ut_print command.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Pull request for UEFI sub-system for v2019.07-rc4-2
Support for managing the non-volatile attribute of UEFI variables
is added though we do not have a backend for persistence yet.
Error messages for changes of UEFI variables are provided.
UEFI boottime service implementations are corrected.
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Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
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This function can be used to set the local MAC address for the default
Ethernet interface in its device tree node. The default interface is
identified by the "ethernet" alias.
One case where this is useful is for devices that store their MAC
address in a custom location. Once extracted, board code can store the
MAC address in U-Boot's control DTB so that it will automatically be
used by the Ethernet uclass.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
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Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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The attribute, EFI_VARIABLE_NON_VOLATILE, should be encoded as "nv" flag
in U-Boot variable if specified.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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When the memory map is changed signal events of the
EFI_EVENT_GROUP_MEMORY_MAP_CHANGE event group.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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If a user defines BootNext but not BootOrder and loading from BootNext
fails, you will see only a message like this:
BootOrder not defined
This may confuse a user. Adding an error message will be helpful.
An example output looks like this:
=> efidebug boot add 0001 label1 scsi 0:1 "\path1\file1.efi" "--option foo"
=> efidebug boot add 0002 label2 scsi 0:1 "\path2\file2.efi" "--option bar"
=> efidebug boot add 0003 label3 scsi 0:1 "\path3\file3.efi" "--option no"
=> efidebug boot order 0001 0002
=> efidebug boot next 0003
=> bootefi bootmgr
Loading from Boot0003 'label3' failed
Loading from BootNext failed, falling back to BootOrder
Loading from Boot0001 'label1' failed
Loading from Boot0002 'label2' failed
EFI boot manager: Cannot load any image
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Adjust messages.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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When UnloadImage() is called all protocols opened by the image have to be
closed.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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The EnableCursor() service of the simple text output protocol must update
the the CursorVisible field of the output mode.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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During a call to Stall() we should periodically check for timer events.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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In the UEFI Stall() boottime service we need access to usec_to_tick().
Export the function.
Remove redundant implementation in arch/arm/mach-rockchip/rk_timer.c.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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If DisconnectController() is called and no driver is managing
ControllerHandle, return EFI_SUCCESS.
UEFI SCT II 2017, 3.3.12 DisconnectController(), 5.1.3.12.4 - 5.1.3.12.6
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Provide a unit test that checks that the open protocol information is
correctly updated when opening and closing protocols.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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CloseProtocol() must delete all open protocol information records relating
to import parameters not only one.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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When a protocol is opened the open protocol information must be updated.
The key fields of the open protocol information records are ImageHandle,
ControllerHandle, and Attributes.
Consider the Attributes field when determining if an open protocol
information record has to be updated or a new one has to be created.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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The UEFI specification requires that when a protocol is opened via
HandleProtocol() the agent handle is the image handle of the EFI firmware
(see chapter on EFI_BOOT_SERVICES.OpenProtocol()).
Let efi_handle_protocol() pass efi_root as agent handle to
efi_open_protocol().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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The GetTime() and the SetTime() runtime services are not obligatory. So
let's make them customizable.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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If SetTime() is meant to set daylight saving time it will be called with
Time.Daylight == EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT.
Return 0 from GetTime() if time is not in daylight because we cannot
determine if we are in a time zone with daylight saving time.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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The UEFI spec prescribes that we check that the timestamp passed to
SetTime() is checked for validity.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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When uninstalling a protocol the following steps are needed:
* request all drivers to disconnect
* close protocol for all non-drivers
* check if any open instance of the protocol exists on the handle and
return EFI_ACCESS_DENIED in this case
* remove the protocol interface
By tort we tested for remaining open protocol instances already after
requesting drivers to disconnect.
With this correction the UEFI SCT II tests for UninstallProtocolInterface()
and ReinstallProtocolInterface are passed.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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When trying to open a protocol exclusively attached drivers have to be
removed. This removes entries in the open protocol information linked list
over which we are looping. As additionally child controllers may have been
removed the only safe thing to do is to restart the loop over the linked
list when a driver is removed.
By observing the return code of DisconnectController() we can eliminate a
loop.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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If a protocol is opened BY_DRIVER it cannot be opened by another agent
BY_DRIVER.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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In LocateProtocol() implement searching by the registration key returned by
RegisterNotifyProtocol().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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The code to check if a registration key is a valid key returned by
RegisterProtocolNotify() can be reused. So let us factor it out into a new
function efi_check_register_notify_event().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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If a user defines BootNext but not BootOrder and loading from BootNext
fails, you will see only a message like this:
BootOrder not defined
This may confuse a user. Adding an error message will be helpful.
An example output looks like this:
=> efidebug boot add 0001 label1 scsi 0:1 "\path1\file1.efi" "--option foo"
=> efidebug boot add 0002 label2 scsi 0:1 "\path2\file2.efi" "--option bar"
=> efidebug boot add 0003 label3 scsi 0:1 "\path3\file3.efi" "--option no"
=> efidebug boot order 0001 0002
=> efidebug boot next 0003
=> bootefi bootmgr
Loading from Boot0003 'label3' failed
Loading from BootNext failed, falling back to BootOrder
Loading from Boot0001 'label1' failed
Loading from Boot0002 'label2' failed
EFI boot manager: Cannot load any image
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Adjust messages.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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When a protocol is installed the handle should be queued for the
registration key of each registered event. LocateHandle() should return the
first handle from the queue for the registration key and delete it from the
queue.
Implement the queueing.
Correct the selftest.
With the patch the UEFI SCT tests for LocateHandle() are passed without
failure.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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If a variable already exists, efi_set_variable() should not change
the variable's attributes. This patch enforces it.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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The current efi_st_variable() doesn't support EFI_VARIABLE_APPEND_WRITE
attiribute for now, and so should return an error.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Fix typos is commit message.
Add TODO comment.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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The error here should be marked *todo*.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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According to the FAT32 specification 0x7f (DEL) is not a legal character
for file names.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Since commit 226cddbe32f0 ("efi_loader: check device path in
InstallMultipleProtocolInterfaces") iPXE fails to access the network.
LocateDevicePath() returns EFI_SUCCESS even if a shorter path is found as a
partial match. It returns the remaining path. So to be sure that we found a
complete match we need to check that the remaining path refers to an end
node.
Provide debug output if a device path has already been installed.
Fixes: 226cddbe32f0 ("efi_loader: check device path in
InstallMultipleProtocolInterfaces")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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According to the UEFI spec 2.8 the GetTime() runtime service should return
EFI_UNSUPPORTED if the real time clock is not available.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Implement the SetTime() runtime service.
Extend the real time clock selftest to check setting the clock.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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U-Boot already defines the {upper,lower}_32_bits() macros that have the
same purpose. Use the existing macros instead of defining new APIs.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Check the parameters against NULL.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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KeyToggleState is a pointer according to UEFI spec 2.8.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Do not write to address indicated by NULL pointer.
UEFI SCT II 2.6 (2017), 3.6.5 GetNextMonotonicCount(), 5.1.5.5.1
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Not checking the parameters may lead reading or writing from NULL.
Implement the parameter checks prescribed in the UEFI spec.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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According to the UEFI spec InstallMultipleProtocolInterfaces() must check
if a device path has already been installed. In this case it must return
EFI_ALREADY_STARTED.
Cf. UEFI SCT II 2.6 A (2017),
3.3.16 InstallMultipleProtocolInterfaces(), 5.1.3.16.1.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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In EFI 1.10 a version of the Unicode collation protocol using ISO 639-2
language codes existed. This protocol is not part of the UEFI specification
any longer. Unfortunately it is required to run the UEFI Self Certification
Test (SCT) II, version 2.6, 2017. So we implement it here for the sole
purpose of running the SCT. It can be removed once a compliant SCT is
available.
The configuration option defaults to no.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Most of Rob's original patch is already merged. Only the deprecated
protocol is missing. Rebase it and make it configurable.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Rename variables to make it clear they refer to the Unicode collation
protocol identified by the EFI_UNICODE_PROTOCOL2_GUID.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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In the implementation of the device path to text protocol join adjacent
sprintf() statements.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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