u-boot.git/cmd/bootefi.c, branch v2020.04

efi_loader: only reserve memory if fdt node enabled

2020-03-28T09:45:03+00:00

Sub-nodes of /reserved-memory may be disabled. In this case we should not
reserve memory in the memory map.

Reported-by: Patrick DELAUNAY 
Fixes: fef907b2e440 ("efi_loader: create reservations after
ft_board_setup")
Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Atish Patra

cmd: bootefi: Parse reserved-memory node from DT

2020-03-17T07:29:52+00:00

Currently, bootefi only parses memory reservation block to setup
EFI reserved memory mappings. However, it doesn't parse the
reserved-memory[1] device tree node that also can contain the
reserved memory regions.

Add capability to parse reserved-memory node and update the EFI memory
mappings accordingly.

1. /doc/device-tree-bindings/reserved-memory/reserved-memory.txt]

Signed-off-by: Atish Patra 

Fix an endless loop.

The /reserved-memory node may have children without reg property. Remove
a superfluous debug statement.

Signed-off-by: Heinrich Schuchardt

efi_loader: create reservations after ft_board_setup

2020-03-17T07:29:52+00:00

Some memory reservations are made in ft_board_setup(). Ensure that we
create reserved memory map entries after ft_board_setup().

The downside of this patch is that if bootefi is called multiple times with
an devicetree argument superfluous reservations for the old copies of the
device tree will exist. But that is still better than missing a reservation.

Deleting the superfluous reservations is not possible because reservations
in the memory map are rounded to page size and may be coallesced.

Signed-off-by: Heinrich Schuchardt

efi_loader: fix efi_install_fdt() description

2020-02-19T11:53:36+00:00

In the function description use the correct parameter name.

Mention EFI_FDT_USE_INTERNAL.

Signed-off-by: Heinrich Schuchardt

dm: core: Create a new header file for 'compat' features

2020-02-06T02:33:46+00:00

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

efi_loader: free load options after execution

2020-01-07T17:08:20+00:00

When be launch a binary via bootefi the bootargs environment variable is
used to set the load options in the loaded image protocol.

Free memory allocated for load options when the UEFI binary exits.

Signed-off-by: Heinrich Schuchardt

efi_loader: export efi_install_fdt()

2020-01-07T17:08:20+00:00

Use a pointer to addressable memory instead of a "physical" address in the
virtual address space of the sandbox to efi_install_fdt().

Export the efi_install_fdt() function.

Signed-off-by: Heinrich Schuchardt

efi_loader: carve out efi_run_image()

2020-01-07T17:08:20+00:00

Provide public function efi_run_imager() which can be used to run an UEFI
image from memory.

Signed-off-by: Heinrich Schuchardt

efi_loader: use hardware device tree by default

2020-01-07T17:08:20+00:00

If the bootefi command is called without passing the address of a device
tree, the internal device tree is used. For devices with a hardware device
tree it is preferable to used the hardware device tree in this case.

Signed-off-by: Heinrich Schuchardt

efi_loader: pass address to efi_install_fdt()

2020-01-07T17:08:20+00:00

As part of moving the parsing of command line arguments to do_bootefi()
call efi_install_fdt() with the address of the device tree instead of a
string.

If the address is EFI_FDT_USE_INTERNAL (= 0), the internal device tree
is used.

Signed-off-by: Heinrich Schuchardt