| #------------------------------------------------------------------------------ |
| # |
| # Copyright (c) 2006, Intel Corporation |
| # 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. |
| # |
| # Module Name: |
| # |
| # EnablePaging64.S |
| # |
| # Abstract: |
| # |
| # AsmEnablePaging64 function |
| # |
| # Notes: |
| # |
| #------------------------------------------------------------------------------ |
| |
| |
| #------------------------------------------------------------------------------ |
| # VOID |
| # EFIAPI |
| # InternalX86EnablePaging64 ( |
| # IN UINT16 Cs, %rdi |
| # IN UINT64 EntryPoint, %rsi |
| # IN UINT64 Context1, OPTIONAL %rdx |
| # IN UINT64 Context2, OPTIONAL %rcx |
| # IN UINT64 NewStack %r8 |
| # ); |
| #------------------------------------------------------------------------------ |
| .global _InternalX86EnablePaging64; |
| _InternalX86EnablePaging64: |
| cli |
| pop %rax |
| callq Base |
| Base: |
| addl $(L1-Base),(%rsp) |
| mov %cr4,%rax |
| or $0x20,%al |
| mov %rax,%cr4 |
| mov $0xc0000080,%ecx |
| rdmsr |
| or $0x1,%ah |
| wrmsr |
| mov %cr0,%rax |
| bts $0x1f,%eax |
| mov %rax,%cr0 |
| lret |
| L1: |
| addr32 mov (%esp),%rbx |
| addr32 mov 0x8(%esp),%rcx |
| addr32 mov 0x10(%esp),%rdx |
| addr32 mov 0x18(%esp),%rsp |
| add $-0x20,%rsp |
| callq *%rbx |
| jmp . |
