The EFI_RT_PROPERTIES_TABLE configuration table indicates which runtime
services are available at runtime.
Even if CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y, we neither support
UpdateCapsule() nor QueryCapsuleCapabilities() at runtime. Thus we should
not set the corresponding flags EFI_RT_SUPPORTED_UPDATE_CAPSULE and
EFI_RT_SUPPORTED_QUERY_CAPSULE_CAPABILITIES in RuntimeServicesSupported.
Fixes: 2bc27ca8a0 ("efi_loader: define UpdateCapsule api")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
In this commit, skeleton functions for capsule-related API's are
added under CONFIG_EFI_UPDATE_CAPSULE configuration.
Detailed implementation for a specific capsule type will be added
in the succeeding patches.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Adjust the SetTime() and GetTime() runtime services to correctly convert
the daylight saving time information when communicating with the RTC.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
If ResetSystem() is not implemented at runtime, it should return instead
of hanging in an endless loop. This allows the operating system to reset
the system by other means as Linux does. It also matches what EDK II
suggests in comments for functions ResetShutdown() and ResetWarm() in
OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
efi_var_mem_del() is in __efi_runtime because it would be needed for a
runtime implementation of SetVariable(). memmove() is not in __efi_runtime.
So we should not use it in efi_var_mem_del().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
If the EFI_OPTIONAL_PTR is set in DebugDisposition, a NULL pointer does not
constitute an invalid parameter.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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 <xypron.glpk@gmx.de>
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 <michael@walle.cc>
Add missing comma in sunxi_display.c.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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 <ardb@kernel.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Tested-by: Ard Biesheuvel <ardb@kernel.org>
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 <sjg@chromium.org>
These functions are CPU-related and do not use driver model. Move them to
cpu_func.h
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
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 <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Commit 7f95104d91 ("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: 7f95104d91 ("efi_loader: detach runtime in ExitBootServices()")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Check the parameters DescriptorSize and DescriptiorVersion of
SetVirtualAddressMap() as prescribed by the UEFI specification.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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 <xypron.glpk@gmx.de>
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: 5d00995c36 ("efi_loader: Implement memory allocation and map")
Fixes: 74c16acce3 ("efi_loader: Don't allocate from memory holes")
Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Alexander Graf <agraf@csgraf.de>
Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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 <xypron.glpk@gmx.de>
efi_set_virtual_address_map_runtime() must be of type __efi_runtime.
Fixes: ee8ebaaaae ("efi_loader: split off detaching SetVirtualAddress()")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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 <ard.biesheuvel@linaro.org>
Suggested-by: Alexander Graf <agraf@csgraf.de>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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 <xypron.glpk@gmx.de>
Unimplemented runtime services should always return EFI_UNSUPPORTED as
described in the UEFI 2.8 spec.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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 <xypron.glpk@gmx.de>
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 <xypron.glpk@gmx.de>
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 <xypron.glpk@gmx.de>
Let's keep similar things together.
Move efi_query_variable_info() to lib/efi_loader/efi_variable.c
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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 <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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>
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>
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>
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>
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>
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>
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 <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
While changing the RTS alignment to 64KB in commit 7a82c3051c
("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: 7a82c3051c ("efi_loader: Align runtime section to 64kb")
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reported-by: Loic Devulder <ldevulder@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Tested-by: Loic Devulder <ldevulder@suse.de>
Tested-by: Jonathan Gray <jsg@jsg.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
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>
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>
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>
