u-boot.git/include/efi_loader.h, branch v2023.01

efi_loader: carve out efi_get_memory_map_alloc()

2023-01-06T21:27:30+00:00

Carve out code from efidebug command used to read the memory map.

Signed-off-by: Heinrich Schuchardt

eficonfig: carve out efi_get_next_variable_name_int calls

2022-12-20T15:06:48+00:00

To retrieve the EFI variable name by efi_get_next_variable_name_int(),
the sequence of alloc -> efi_get_next_variable_name_int ->
realloc -> efi_get_next_variable_name_int is required.
In current code, this sequence repeatedly appears in
the several functions. It should be curved out a common function.

This commit also fixes the missing free() of var_name16
in eficonfig_delete_invalid_boot_option().

Signed-off-by: Masahisa Kojima 
Reviewed-by: Heinrich Schuchardt 
Reviewed-by: Ilias Apalodimas

efi_loader: utility function to check the variable name is "Boot####"

2022-12-02T18:17:25+00:00

Some commands need to enumerate the existing UEFI load
option variable("Boot####"). This commit transfers some code
from cmd/efidebug.c to lib/efi_loder/, then exposes
efi_varname_is_load_option() function to check whether
the UEFI variable name is "Boot####".

Signed-off-by: Masahisa Kojima 
Reviewed-by: Ilias Apalodimas

efi_loader: remove efi_delete_handle on loadfile2

2022-10-16T10:23:22+00:00

Loadfile2 code is installing two protocols on it's own handle
and uses efi_delete_handle() to clean it up on failure(s). However
commit 05c4c9e21ae6 ("efi_loader: define internal implementations of
install/uninstallmultiple") prepares the ground for us to clean up
efi_delete_handle() used in favor of Install/UninstallMultipleProtocol.

While at it clean up the non needed void casts to (void *) on the
protolcol installation.

Signed-off-by: Ilias Apalodimas 
Reviewed-by: Heinrich Schuchardt

efi_loader: internal CloseProtocol

2022-10-10T14:34:25+00:00

Allow avoiding using EFI_CALL() when closing a protocol by providing an
internal function.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Ilias Apalodimas

efi_loader: don't export efi_remove_all_protocols

2022-10-10T14:34:25+00:00

This function is only used inside efi_boottime.c and is not safe to use
outside of this context.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Ilias Apalodimas

efi_loader: define internal implementations of install/uninstallmultiple

2022-10-06T20:54:58+00:00

A following patch is cleaning up the core EFI code trying to remove
sequences of efi_create_handle, efi_add_protocol.

Although this works fine there's a problem with the latter since it is
usually combined with efi_delete_handle() which blindly removes all
protocols on a handle and deletes the handle.  We should try to adhere to
the EFI spec which only deletes a handle if the last instance of a protocol
has been removed.  Another problem is that efi_delete_handle() never checks
for opened protocols,  but the EFI spec defines that the caller is
responsible for ensuring that there are no references to a protocol
interface that is going to be removed.

So let's fix this by replacing all callsites of
efi_create_handle(), efi_add_protocol() , efi_delete_handle() with
Install/UninstallMultipleProtocol.

In order to do that redefine functions that can be used by the U-Boot
proper internally and add '_ext' variants that will be used from the
EFI API

Signed-off-by: Ilias Apalodimas 
Reviewed-by: Heinrich Schuchardt

efi_driver: move event registration to driver

2022-10-06T20:54:58+00:00

Move the registration of events for the addition and removal of block
devices to the block device driver. Here we can add a reference to the
EFI Driver Binding protocol as context.

Signed-off-by: Heinrich Schuchardt

efi_loader: function to unlink udevice and handle

2022-10-06T20:54:57+00:00

When deleting a device or a handle we must remove the link between the two
to avoid dangling references.

Provide function efi_unlink_dev() for this purpose.

Signed-off-by: Heinrich Schuchardt

efi: Add string conversion helper

2022-10-06T20:54:57+00:00

Signed-off-by: Paul Barker 
Reviewed-by: Heinrich Schuchardt