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Diffstat (limited to 'OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.nasm')
-rw-r--r--OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.nasm93
1 files changed, 0 insertions, 93 deletions
diff --git a/OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.nasm b/OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.nasm
deleted file mode 100644
index 128dcef0f6..0000000000
--- a/OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.nasm
+++ /dev/null
@@ -1,93 +0,0 @@
-;------------------------------------------------------------------------------
-;
-; Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
-;
-; 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.
-;
-;------------------------------------------------------------------------------
-
- DEFAULT REL
- SECTION .text
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; JumpToKernel (
-; VOID *KernelStart, // rcx
-; VOID *KernelBootParams // rdx
-; );
-;------------------------------------------------------------------------------
-global ASM_PFX(JumpToKernel)
-ASM_PFX(JumpToKernel):
-
- ; Set up for executing kernel. BP in %esi, entry point on the stack
- ; (64-bit when the 'ret' will use it as 32-bit, but we're little-endian)
- mov rsi, rdx
- push rcx
-
- ; Jump into the compatibility mode CS
- push 0x10
- lea rax, [.0]
- push rax
- DB 0x48, 0xcb ; retfq
-
-.0:
- ; Now in compatibility mode.
-
- DB 0xb8, 0x18, 0x0, 0x0, 0x0 ; movl $0x18, %eax
- DB 0x8e, 0xd8 ; movl %eax, %ds
- DB 0x8e, 0xc0 ; movl %eax, %es
- DB 0x8e, 0xe0 ; movl %eax, %fs
- DB 0x8e, 0xe8 ; movl %eax, %gs
- DB 0x8e, 0xd0 ; movl %eax, %ss
-
- ; Disable paging
- DB 0xf, 0x20, 0xc0 ; movl %cr0, %eax
- DB 0xf, 0xba, 0xf8, 0x1f ; btcl $31, %eax
- DB 0xf, 0x22, 0xc0 ; movl %eax, %cr0
-
- ; Disable long mode in EFER
- DB 0xb9, 0x80, 0x0, 0x0, 0xc0 ; movl $0x0c0000080, %ecx
- DB 0xf, 0x32 ; rdmsr
- DB 0xf, 0xba, 0xf8, 0x8 ; btcl $8, %eax
- DB 0xf, 0x30 ; wrmsr
-
- ; Disable PAE
- DB 0xf, 0x20, 0xe0 ; movl %cr4, %eax
- DB 0xf, 0xba, 0xf8, 0x5 ; btcl $5, %eax
- DB 0xf, 0x22, 0xe0 ; movl %eax, %cr4
-
- DB 0x31, 0xed ; xor %ebp, %ebp
- DB 0x31, 0xff ; xor %edi, %edi
- DB 0x31, 0xdb ; xor %ebx, %ebx
- DB 0xc3 ; ret
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; JumpToUefiKernel (
-; EFI_HANDLE ImageHandle, // rcx
-; EFI_SYSTEM_TABLE *SystemTable, // rdx
-; VOID *KernelBootParams // r8
-; VOID *KernelStart, // r9
-; );
-;------------------------------------------------------------------------------
-global ASM_PFX(JumpToUefiKernel)
-ASM_PFX(JumpToUefiKernel):
-
- mov rdi, rcx
- mov rsi, rdx
- mov rdx, r8
- xor rax, rax
- mov eax, [r8 + 0x264]
- add r9, rax
- add r9, 0x200
- call r9
- ret
-