mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-30 12:43:41 +01:00
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/** @file
|
|
Copyright (C) 2019, vit9696. All rights reserved.
|
|
|
|
All rights reserved.
|
|
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
**/
|
|
|
|
#include "../BootCompatInternal.h"
|
|
|
|
#include <Library/DebugLib.h>
|
|
|
|
VOID
|
|
AppleMapPlatformSaveState (
|
|
IN OUT ASM_SUPPORT_STATE *AsmState,
|
|
OUT ASM_KERNEL_JUMP *KernelJump
|
|
)
|
|
{
|
|
//
|
|
// Save current 64-bit state - will be used later in callback from kernel jump
|
|
// to be able to transition to 64-bit in case 32-bit kernel startup code is used.
|
|
//
|
|
AsmAppleMapPlatformSaveState (AsmState);
|
|
|
|
//
|
|
// Assembly state must fit into 32-bit address as we may jumo from 32-bit kernel
|
|
// startup code. This is used instead of GetBootCompatContext.
|
|
//
|
|
ASSERT ((UINT32)(UINTN) AsmState == (UINTN) AsmState);
|
|
gOcAbcAsmStateAddr32 = (UINT32)(UINTN) AsmState;
|
|
|
|
//
|
|
// Kernel trampoline for jumping to kernel.
|
|
//
|
|
ASSERT (
|
|
(UINT32)(UINTN) AsmAppleMapPlatformPrepareKernelState
|
|
== (UINTN) AsmAppleMapPlatformPrepareKernelState
|
|
);
|
|
KernelJump->MovInst = 0xB9;
|
|
KernelJump->Addr = (UINT32)(UINTN) AsmAppleMapPlatformPrepareKernelState;
|
|
KernelJump->CallInst = 0xD1FF;
|
|
}
|