u-boot.git/cmd/bootefi.c, branch v2017.09

efi_loader: use EFI_PAGE_SIZE instead of 4096

2017-08-12T12:06:23+00:00

We should use constant EFI_PAGE_SIZE instead of 4096 where the
coding relies on 4096 being EFI_PAGE_SIZE.

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

efi_loader: Fix configuration table override

2017-07-26T13:24:47+00:00

Before commit 7cbc12415d ("efi_loader: initalize EFI object list
only once") we recreated the world on every bootefi invocation.

That included the object tree as well as the configuration tables.

Now however we don't recreate them, which means we must not explicitly
override the configuration tables, as otherwise we may lose our SMBIOS
table from the configuration table list on second bootefi invocation.

This patch makes bootefi call our normal configuration table modification
APIs to add/remove the FDT instead of recreating all tables from scratch.
That way the SMBIOS table gets preserved across multiple invocations.

Signed-off-by: Alexander Graf

efi_loader: initalize EFI object list only once

2017-07-24T12:53:32+00:00

If several EFI applications are executed in sequence we want
to keep the content of the EFI object list.

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

efi_loader: gop: fixes for CONFIG_DM_VIDEO without CONFIG_LCD

2017-07-24T12:43:40+00:00

Make EFI GOP support work with DM_VIDEO but without legacy LCD.

Signed-off-by: Rob Clark 
Signed-off-by: Alexander Graf

efi_loader: EFI file paths should be DOS style

2017-07-24T12:33:32+00:00

shim.efi, for example, actually tries to parse this, but is expecting
backslashes.

Signed-off-by: Rob Clark 
Signed-off-by: Alexander Graf

efi_console: set up events

2017-07-19T12:36:04+00:00

Set up a timer event and the WaitForKey event.
In the notify function of the timer event check for console input
and signal the WaitForKey event accordingly.

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

efi_loader: provide meaningful status code

2017-07-19T12:14:41+00:00

Currenty any EFI status other than EFI_SUCCESS is reported as
Application terminated, r = -22

With the patch the status code returned by the EFI application
is printed.

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

bootefi: allow return without EFI_BOOT_SERVICES.Exit

2017-07-19T12:14:40+00:00

The Unified Extensible Firmware Interface Specification, version 2.7,
defines in chapter 2.1.2 - UEFI Application that an EFI application may
either directly return or call EFI_BOOT_SERVICES.Exit().

Unfortunately U-Boot makes the incorrect assumption that
EFI_BOOT_SERVICES.Exit() is always called.

So the following application leads to a memory exception on the aarch64
architecture when returning:

EFI_STATUS efi_main(
  EFI_HANDLE handle,
  EFI_SYSTEM_TABlE systable) {
	return EFI_SUCCESS;
}

With this patch the entry point is stored in the image handle.

The new wrapper function do_enter is used to call the EFI entry point.

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

efi_loader: implement EFI_DEVICE_PATH_TO_TEXT_PROTOCOL

2017-07-19T12:14:40+00:00

ConvertPathToText is implemented for
* type 4    - media device path
* subtype 4 - file path

This is the kind of device path we hand out for block devices.

All other cases may be implemented later.

Signed-off-by: Heinrich Schuchardt 
[agraf: fix whitespace]
Signed-off-by: Alexander Graf

efi_loader: reimplement efi_locate_protocol

2017-07-19T12:14:40+00:00

The UEFI specification requires that LocateProtol finds the first
handle supporting the protocol and to return a pointer to its
interface.

So we have to assign the protocols to an efi_object and not use
any separate storage.

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