u-boot.git/cmd/bootefi.c, branch v2018.09

efi_loader: remove unused efi_get_time_init()

2018-07-25T13:00:24+00:00

Remove unused function efi_get_time_init().

Initialization of the RTC has to be done in board bring up not in the EFI
subsystem.

There is no RTC device in the UEFI spec. The RTC is only accessed through
the runtime services.

Signed-off-by: Heinrich Schuchardt 
Signed-off-by: Alexander Graf

efi_loader: calculate crc32 for EFI tables

2018-07-25T13:00:24+00:00

For the boot and runtime services tables and for the system table the
crc32 has to be set in the header.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Bin Meng 
Signed-off-by: Alexander Graf

efi: Drop error return in efi_carve_out_dt_rsv()

2018-07-25T12:57:44+00:00

This function currently returns an error code, but never uses it. There is
no function comment so it is not obvious why. Presuambly the error is not
important.

Update the function to explain its purpose and why it ignores the error.
Drop the useful error return value.

Signed-off-by: Simon Glass 
Reviewed-by: Alexander Graf 
Signed-off-by: Alexander Graf

efi: Tidy up device-tree-size calculation in copy_fdt()

2018-07-25T12:57:44+00:00

This is a bit confusing at present since it adds 4KB to the pointer, then
rounds it up. It looks like a bug, but is not.

Move the 4KB addition into a separate statement and expand the comment.

Signed-off-by: Simon Glass 
Signed-off-by: Alexander Graf

efi_loader: Use map_sysmem() in bootefi command

2018-07-25T12:57:43+00:00

The bootefi command gets a few addresses as values passed in. In sandbox,
these values are in U-Boot address space, so we need to make sure we
explicitly call map_sysmem() on them to be able to access them.

Signed-off-by: Alexander Graf 
Reviewed-by: Simon Glass 
Signed-off-by: Alexander Graf

efi_loader: ARM: don't attempt to enter non-secure mode twice

2018-07-25T12:57:43+00:00

Multiple EFI binaries may be executed in sequence.  So if we already
are in non-secure mode after running the first one we should skip
the switching code since it no longer works once we're non-secure.

Signed-off-by: Mark Kettenis 
Signed-off-by: Alexander Graf

efi_loader: ARM: run EFI payloads non-secure

2018-07-25T12:57:43+00:00

If desired (and possible) switch into HYP mode or non-secure SVC mode
before calling the entry point of an EFI application.  This allows
U-Boot to provide a usable PSCI implementation and makes it possible
to boot kernels into hypervisor mode using an EFI bootloader.

Based on diffs from Heinrich Schuchardt and Alexander Graf.

Signed-off-by: Mark Kettenis 
[agraf: Fix indentation]
Signed-off-by: Alexander Graf

efi_loader: Install ACPI configuration tables

2018-07-02T01:23:28+00:00

ACPI tables can be passed via EFI configuration table to an EFI
application. This is only supported on x86 so far.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

efi_loader: Allocate memory handle for mem dp

2018-06-14T08:53:37+00:00

When we boot using memdp (bootefi on an address without previous
load that populates the device path) then the memory device path
we pass in is not backed by any handle.

That can result in weird effects. For example grub gets very grumpy
about this inside the efi_net module and just loops endlessly.

So let's expose a simple handle that the memory device path is backed
on. That way any code that looks for the device the dp is on, finds
one.

Signed-off-by: Alexander Graf

efi_loader: avoid anonymous constants for AllocatePages

2018-06-03T13:27:21+00:00

Do not use anonymous constants when calling efi_allocage_pages.

Signed-off-by: Heinrich Schuchardt 
Signed-off-by: Alexander Graf