tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ArmPkg/PlatformBootManagerLib: load platform boot options 

Make platform driver to create predefined boot options and related
hot keys.

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Haojian Zhuang 2018-04-23 14:21:54 +08:00 committed by Leif Lindholm
parent 7e074d15e7
commit 1b6e7633ca
2 changed files with 105 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

103
ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c
View File

@ -30,6 +30,7 @@
#include <Protocol/LoadedImage.h>
#include <Protocol/PciIo.h>
#include <Protocol/PciRootBridgeIo.h>
#include <Protocol/PlatformBootManager.h>
#include <Guid/EventGroup.h>
#include <Guid/TtyTerm.h>
@ -390,6 +391,106 @@ PlatformRegisterFvBootOption (
}
STATIC
VOID
GetPlatformOptions (
VOID
)
{
EFI_STATUS Status;
EFI_BOOT_MANAGER_LOAD_OPTION *CurrentBootOptions;
EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;
EFI_INPUT_KEY *BootKeys;
PLATFORM_BOOT_MANAGER_PROTOCOL *PlatformBootManager;
UINTN CurrentBootOptionCount;
UINTN Index;
UINTN BootCount;
Status = gBS->LocateProtocol (&gPlatformBootManagerProtocolGuid, NULL,
(VOID **)&PlatformBootManager);
if (EFI_ERROR (Status)) {
return;
}
Status = PlatformBootManager->GetPlatformBootOptionsAndKeys (
&BootCount,
&BootOptions,
&BootKeys
);
if (EFI_ERROR (Status)) {
return;
}
//
// Fetch the existent boot options. If there are none, CurrentBootCount
// will be zeroed.
//
CurrentBootOptions = EfiBootManagerGetLoadOptions (
&CurrentBootOptionCount,
LoadOptionTypeBoot
);
//
// Process the platform boot options.
//
for (Index = 0; Index < BootCount; Index++) {
INTN Match;
UINTN BootOptionNumber;
//
// If there are any preexistent boot options, and the subject platform boot
// option is already among them, then don't try to add it. Just get its
// assigned boot option number so we can associate a hotkey with it. Note
// that EfiBootManagerFindLoadOption() deals fine with (CurrentBootOptions
// == NULL) if (CurrentBootCount == 0).
//
Match = EfiBootManagerFindLoadOption (
&BootOptions[Index],
CurrentBootOptions,
CurrentBootOptionCount
);
if (Match >= 0) {
BootOptionNumber = CurrentBootOptions[Match].OptionNumber;
} else {
//
// Add the platform boot options as a new one, at the end of the boot
// order. Note that if the platform provided this boot option with an
// unassigned option number, then the below function call will assign a
// number.
//
Status = EfiBootManagerAddLoadOptionVariable (
&BootOptions[Index],
MAX_UINTN
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a: failed to register \"%s\": %r\n",
__FUNCTION__, BootOptions[Index].Description, Status));
continue;
}
BootOptionNumber = BootOptions[Index].OptionNumber;
}
//
// Register a hotkey with the boot option, if requested.
//
if (BootKeys[Index].UnicodeChar == L'\0') {
continue;
}
Status = EfiBootManagerAddKeyOptionVariable (
NULL,
BootOptionNumber,
0,
BootKeys[Index],
NULL
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a: failed to register hotkey for \"%s\": %r\n",
__FUNCTION__, BootOptions[Index].Description, Status));
}
}
EfiBootManagerFreeLoadOptions (CurrentBootOptions, CurrentBootOptionCount);
EfiBootManagerFreeLoadOptions (BootOptions, BootCount);
FreePool (BootKeys);
}
STATIC
VOID
PlatformRegisterOptionsAndKeys (
@ -402,6 +503,8 @@ PlatformRegisterOptionsAndKeys (
EFI_INPUT_KEY Esc;
EFI_BOOT_MANAGER_LOAD_OPTION BootOption;
GetPlatformOptions ();
//
// Register ENTER as CONTINUE key
//

2
ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
View File

@ -35,6 +35,7 @@
PlatformBm.c
[Packages]
EmbeddedPkg/EmbeddedPkg.dec
MdeModulePkg/MdeModulePkg.dec
MdePkg/MdePkg.dec
ShellPkg/ShellPkg.dec
@ -84,3 +85,4 @@
gEfiPciRootBridgeIoProtocolGuid
gEfiSimpleFileSystemProtocolGuid
gEsrtManagementProtocolGuid
gPlatformBootManagerProtocolGuid