u-boot.git/lib/efi_loader, branch v2020.04-rc2

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: imply VIDEO_ANSI

2020-01-14T23:51:51+00:00

UEFI programs like GRUB make change terminal colors which requires support
for ANSI escape sequences.

Let CONFIG_EFI_LOADER=y imply CONFIG_VIDEO_ANSI.

Signed-off-by: Heinrich Schuchardt

efi_loader: describe returning of control

2020-01-14T23:51:51+00:00

Provide a sober description of how control can be returned by a UEFI
binary.

Signed-off-by: Heinrich Schuchardt

efi_loader: document functions in efi_rng.c

2020-01-14T23:51:51+00:00

Add the missing Sphinx documentation.

Signed-off-by: Heinrich Schuchardt

efi_rng_protocol: Install the efi_rng_protocol on the root node

2020-01-07T17:08:22+00:00

Install the EFI_RNG_PROTOCOL implementation for it's subsequent use by
the kernel for features like kaslr.

Signed-off-by: Sughosh Ganu 
Reviewed-by: Heinrich Schuchardt

efi: qemu: arm64: Add efi_rng_protocol implementation for the platform

2020-01-07T17:08:22+00:00

Add support for the EFI_RNG_PROTOCOL routines for the qemu arm64
platform. EFI_RNG_PROTOCOL is an uefi boottime service which is
invoked by the efi stub in the kernel for getting random seed for
kaslr.

The routines are platform specific, and use the virtio-rng device on
the platform to get random data.

The feature can be enabled through the following config
CONFIG_EFI_RNG_PROTOCOL

Signed-off-by: Sughosh Ganu 
Changed SPDX header to use /* instead of //.
Reviewed-by: Heinrich Schuchardt

efi_loader: Add guidcpy function

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

Add guidcpy function to copy the source guid to the destination
guid. Use this function instead of memcpy for copying to the
destination guid.

Signed-off-by: Sughosh Ganu 

Use void * instead of efi_guid_t * for arguments to allow copying unaligned
GUIDs. The GUIDs of configuration tables are __packed.

Signed-off-by: Heinrich Schuchardt

efi_loader: __cyg_profile_func_enter/_exit

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

U-Boot can be compiled with function tracing enabled.

When compiling with FTRACE __cyg_profile_func_enter() is called when a
function is entered and __cyg_profile_func_exit() when the function is
left.

To avoid a crash we have to define these function for the free-standing
UEFI binaries.

Signed-off-by: Heinrich Schuchardt

efi_loader: clear screen should move cursor to home

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

On a VT100 terminal [2J should be enough to both clear the whole
screen and set the cursor to position (1, 1). But the Linux console does
not behave like this. So send an extra [H. For reference see the
console_codes(4) man page.

Add a function description.

Signed-off-by: Heinrich Schuchardt

efi_loader: git ignore helloworld_efi.S

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

Add *.S to .gitignore.

Signed-off-by: Heinrich Schuchardt