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Enable UEFI variables at runtime.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Provide a memcpy() function that we can use at UEFI runtime.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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If the EFI_OPTIONAL_PTR is set in DebugDisposition, a NULL pointer does not
constitute an invalid parameter.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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We need ConvertPointer() to adjust pointers when implementing runtime
services within U-Boot.
After ExitBootServices() gd is not available anymore. So we should not use
EFI_ENTRY() and EFI_EXIT().
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Avoid a possible NULL pointer dereference in efi_convert_pointer().
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Move this header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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Virtually all callers of this function do the rounding on their own.
Some do it right, some don't. Instead of doing this in each caller,
do the rounding in efi_add_memory_map(). Change the size parameter
to bytes instead of pages and remove aligning and size calculation in
all callers.
There is no more need to make the original efi_add_memory_map() (which
takes pages as size) available outside the module. Thus rename it to
efi_add_memory_map_pg() and make it static to prevent further misuse
outside the module.
Signed-off-by: Michael Walle <[email protected]>
Add missing comma in sunxi_display.c.
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Correct the description of function efi_convert_pointer().
Signed-off-by: Heinrich Schuchardt <[email protected]>
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UEFI spec 2.8 errata A replaces the RuntimeServicesSupported variable
defined in UEFI spec 2.8 by the configuration table
EFI_RT_PROPERTIES_TABLE. So let's follow suit.
Cc: Ard Biesheuvel <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
Tested-by: Ard Biesheuvel <[email protected]>
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At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.
Move the compatibility features into a separate header file.
Signed-off-by: Simon Glass <[email protected]>
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These functions are CPU-related and do not use driver model. Move them to
cpu_func.h
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Daniel Schwierzeck <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Drop inclusion of crc.h in common.h and use the correct header directly
instead.
With this we can drop the conflicting definition in fw_env.h and rely on
the crc.h header, which is already included.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Commit 7f95104d91cc ("efi_loader: detach runtime in ExitBootServices()")
added a call to efi_runtime_detach() to ExitBootServices() but did not
remove the call in SetVirtualAddressMap().
Remove the superfluous function call.
Correct a comment referring to efi_runtime_detach().
Fixes: 7f95104d91cc ("efi_loader: detach runtime in ExitBootServices()")
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Check the parameters DescriptorSize and DescriptiorVersion of
SetVirtualAddressMap() as prescribed by the UEFI specification.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Implement the ConvertPointer() runtime service.
Suggested-by: AKASHI Takahiro <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Use efi_uintn_t where the UEFI spec uses UINTN. Use efi_uintn_t also for
the result of the division of two efi_uintn_t.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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We currently have some inconsistent use of efi_add_memory_map()
throughout the code. In particular the return value of efi_add_memory_map()
is not interpreted the same way by various users in the codebase.
This patch does the following:
- Changes efi_add_memory_map() to return efi_status_t.
- Adds a method description to efi_add_memory_map().
- Changes efi_add_memory_map() to return EFI_SUCCESS
- Returns non-zero for error in efi_add_memory_map()
- Updates efi_allocate_pages() to new efi_add_memory_map()
- Updates efi_free_pages() to new efi_add_memory_map()
- Updates efi_carve_out_dt_rsv() to new efi_add_memory_map()
- Updates efi_add_runtime_mmio() to new efi_add_memory_map()
Fixes: 5d00995c361c ("efi_loader: Implement memory allocation and map")
Fixes: 74c16acce30b ("efi_loader: Don't allocate from memory holes")
Suggested-by: Heinrich Schuchardt <[email protected]>
Cc: Alexander Graf <[email protected]>
Signed-off-by: Bryan O'Donoghue <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Implement the EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.
This requires allocating the event and the event list from runtime data.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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efi_set_virtual_address_map_runtime() must be of type __efi_runtime.
Fixes: ee8ebaaaaedc ("efi_loader: split off detaching SetVirtualAddress()")
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Linux can be called with a command line parameter efi=novamap, cf.
commit 4e46c2a95621 ("efi/arm/arm64: Allow SetVirtualAddressMap() to be
omitted"). In this case SetVirtualAddressMap() is not called after
ExitBootServices().
OpenBSD 32bit does not call SetVirtualAddressMap() either.
Runtime services must be set to an implementation supported at runtime
in ExitBootServices().
Reported-by: Ard Biesheuvel <[email protected]>
Suggested-by: Alexander Graf <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
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We do not need any array typed detach list. Let's simply update the
pointers directly.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Move the logic determining which board supports reset at runtime to Kconfig.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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The runtime services SetVirtualAddress() and ConvertPointer() become
unavailable after SetVirtualAddress(). Other runtime services become
unavailable after ExitBootServices.
Move the update of SetVirtualAddress() and ConvertPointer() to
efi_relocate_runtime_table().
Use functions with the correct signature when detaching.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Unimplemented runtime services should always return EFI_UNSUPPORTED as
described in the UEFI 2.8 spec.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Our variable services are only provided at boottime. Therefore when
leaving boottime the variable function are replaced by dummy functions
returning EFI_UNSUPPORTED. Move this patching of the runtime table to the
variable services implementation. Executed it in ExitBootServices().
Signed-off-by: Heinrich Schuchardt <[email protected]>
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The detaching of the runtime will have to move to ExitBootServices() to
encompass operating system that do not call SetVirtualAddressMap().
This patch changes the logic for the relocation of the pointers in the
runtime table such that the relocation becomes independent of the entries
in the detach list.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Some entries in the system table are set to NULL in ExitBootServices(). We
had them in the runtime detach list to avoid relocation of NULL. Let's
instead assign the pointers dynamically in efi_initialize_system_table() to
avoid the relocation entry.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Let's keep similar things together.
Move efi_query_variable_info() to lib/efi_loader/efi_variable.c
Signed-off-by: Heinrich Schuchardt <[email protected]>
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If the GetTime() runtime service is not supported, EFI_UNSUPPORTED has to
be returned.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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This variable is defined in UEFI specification 2.8, section 8.1.
Its value should be updated whenever we add any usable runtime services
function.
Currently we only support SetVirtualAddress() for all systems and
ResetSystem() for some.
Signed-off-by: AKASHI Takahiro <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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The first parameter of efi_add_runtime_mmio() is a pointer to a
pointer. This should be reflected in the documentation.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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While changing the RTS alignment to 64KB in commit 7a82c3051c8f
("efi_loader: Align runtime section to 64kb") the relocation code
started to break.
The reason for that is that we didn't actually look at the real
relocation data. We merely took the RUNTIME_CODE section as a
hint and started to relocate based on self calculated data from
that point on. That calculation was now out of sync though.
To ensure we're not running into such a situation again, this patch
makes the runtime relocation code a bit more robust. We can just
trust the phys/virt hints from the payload. We also should check that
we really only have a single section, as the code doesn't handle
multiple code relocations yet.
Fixes: 7a82c3051c8f ("efi_loader: Align runtime section to 64kb")
Reported-by: Heinrich Schuchardt <[email protected]>
Reported-by: Loic Devulder <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
Tested-by: Loic Devulder <[email protected]>
Tested-by: Jonathan Gray <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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See UEFI specification 2.7, section 8.4.
Signed-off-by: AKASHI Takahiro <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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See UEFI specification v2.7, section 8.5.3.
Signed-off-by: AKASHI Takahiro <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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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 <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
Tested-by: Bin Meng <[email protected]>
Tested-by: Lukas Auer <[email protected]>
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Allow an EFI application to shut down the system.
If EFI_RESET_SHUTDOWN is issued call do_poweroff().
Signed-off-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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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 <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Tested-by: Bin Meng <[email protected]>
Signed-off-by: Bin Meng <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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Correct the description of efi_update_capsule().
Signed-off-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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Fix multiple typos
Signed-off-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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Add comments for runtime service functions.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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The crc32 of the runtime services table must be updated after detaching.
efi_update_table_header_crc32() must be __efi_runtime. So move it to
efi_runtime.c
Signed-off-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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When applying a virtual memory map we have to update the pointer to the
list of configuration tables.
Fixes: 4182a129ef73 ("efi_loader: allocate configuration table array")
Reported-by: Mark Kettenis <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
Tested-by: Mark Kettenis <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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Implement the missing parts of the GetTime() runtime service.
Fill seconds.
Fill daylight saving time flag correctly.
Provide dummy values for capabilities.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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Remove unused function efi_get_time_init().
Initialization of the RTC has to be done in board bring up not in the EFI
subsystem.
There is no RTC device in the UEFI spec. The RTC is only accessed through
the runtime services.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Alexander Graf <[email protected]>
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