mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-30 12:43:41 +01:00
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
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/** @file
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Copyright (C) 2019, vit9696. All rights reserved.
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All rights reserved.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef CONTEXT_SWITCH_H
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#define CONTEXT_SWITCH_H
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//
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// Structure definitions shared with ASM code.
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// Keep these definitions in sync with ContextSwitch.nasm!
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//
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#pragma pack(push, 1)
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/**
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Assembly support state.
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This state is used as an intermediate structure to hold UEFI environment
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context and kernel environment context for switching between 32-bit
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and 64-bit modes during booting as normal XNU boot still happens in 32-bit.
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**/
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typedef PACKED struct ASM_SUPPORT_STATE_ {
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VOID *KernelEntry;
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} ASM_SUPPORT_STATE;
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/**
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Assembly kernel trampoline.
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This structure contains encoded assembly to jump from kernel
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code to UEFI code through AsmAppleMapPlatformPrepareKernelState
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intermediate handler.
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**/
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typedef PACKED struct ASM_KERNEL_JUMP_ {
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UINT8 MovInst;
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UINT32 Addr;
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UINT16 CallInst;
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} ASM_KERNEL_JUMP;
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#pragma pack(pop)
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#endif // CONTEXT_SWITCH_H
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