u-boot.git/include/efi_loader.h, branch v2025.01

efi_loader: Change efi_dp_from_mem() to use size

2024-11-09T08:56:45+00:00

All call sites are using size rather than end addresses,
so instead - as previously done - calculating an end address
everywhere, just modify the function to use size and internally
calculate the end address

Cc: Heinrich Schuchardt 
Cc: Ilias Apalodimas 
Cc: Patrick Wildt 
Signed-off-by: Moritz Fischer 
Reviewed-by: Heinrich Schuchardt

efi_memory: rename variable to highlight overlap with free memory

2024-10-15T19:45:30+00:00

The variable overlap_only_ram is used to specify that the new memory
region that is being created needs to come from the free memory pool
-- this is done by carving out the memory region from the free
memory. The name is a bit confusing though, as other allocated memory
regions, like boot-services code and data are also part of the RAM
memory. Rename the variable to overlap_conventional to highlight the
fact that it is the free/conventional memory that is being referred to
in this context.

Signed-off-by: Sughosh Ganu 
Reviewed-by: Ilias Apalodimas 
Reviewed-by: Simon Glass

efi_memory: do not add RAM memory to the memory map

2024-10-15T19:45:30+00:00

The EFI_CONVENTIONAL_MEMORY type, which is the usable RAM memory is
now being managed by the LMB module. Remove the addition of this
memory type to the EFI memory map. This memory now gets added to the
EFI memory map as part of the LMB memory map update event handler.

Signed-off-by: Sughosh Ganu 
Reviewed-by: Simon Glass 
Reviewed-by: Ilias Apalodimas

lmb: notify of any changes to the LMB memory map

2024-10-15T19:45:29+00:00

In U-Boot, LMB and EFI are two primary modules who provide memory
allocation and reservation API's. Both these modules operate with the
same regions of memory for allocations. Use the LMB memory map update
event to notify other interested listeners about a change in it's
memory map. This can then be used by the other module to keep track of
available and used memory.

There is no need to send these notifications when the LMB module is
being unit-tested. Add a flag to the lmb structure to indicate if the
memory map is being used for tests, and suppress sending any
notifications when running these unit tests.

Signed-off-by: Sughosh Ganu

efi_leader: delete rng-seed if having EFI RNG protocol

2024-10-10T04:04:56+00:00

For measured be boot we must avoid any volatile values in the device-tree.
We already delete /chosen/kaslr-seed if we provide and EFI RNG protocol.

Additionally remove /chosen/rng-seed provided by QEMU or U-Boot.

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

include: Remove duplicate newlines

2024-07-29T21:01:04+00:00

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut

efi_loader: find distro device-path for media devices

2024-07-19T11:43:50+00:00

The auto-generated load options for media device do not contain a partition
node. We cannot expect the simple file protocol here.

Get the partition device-path via the loaded image protocol.

Fixes: e91b68fd6b83 ("efi_loader: load distro dtb in bootmgr")
Reported-by: E Shattow 
Signed-off-by: Heinrich Schuchardt 
Tested-by: E Shattow

efi: move guid helper functions to efi.h

2024-07-16T23:09:33+00:00

Move the guidcmp() and guidcpy() functions to efi.h, near the definition of
the efi_guid_t type those functions deal with.

Signed-off-by: Vincent Stehlé 
Cc: Heinrich Schuchardt 
Cc: Ilias Apalodimas 
Cc: Tom Rini

efi_loader: load distro dtb in bootmgr

2024-06-10T09:43:37+00:00

If no device-tree is specified, try to load a device-tree from the boot
device use the $fdtfile concatenated to either of the paths '/dtb/', '/',
'/dtb/current/'.

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

efi_loader: export efi_load_image_from_path

2024-06-10T09:43:36+00:00

We can reuse this function to load the device-tree.

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