diff options
Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/X64/ProcessorAsms.S')
| -rw-r--r-- | EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/X64/ProcessorAsms.S | 322 |
1 files changed, 161 insertions, 161 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/X64/ProcessorAsms.S b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/X64/ProcessorAsms.S index 6987b4191c..6323c1fc44 100644 --- a/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/X64/ProcessorAsms.S +++ b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/X64/ProcessorAsms.S @@ -1,161 +1,161 @@ -#------------------------------------------------------------------------------ -# -# Copyright (c) 2008 - 2010, 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. -# -# Module Name: -# ProcessorAsms.S -# -# Abstract: -# This is separated from processor.c to allow this functions to be built with /O1 -# -# -#------------------------------------------------------------------------------ -#include <EfiBind.h> - - .text - -.globl ASM_PFX(SwitchStacks) -.globl ASM_PFX(TransferControlSetJump) -.globl ASM_PFX(TransferControlLongJump) - -# -# Routine Description: -# This allows the caller to switch the stack and goes to the new entry point -# -# Arguments: -# EntryPoint - Pointer to the location to enter // rcx -# Parameter - Parameter to pass in // rdx -# NewStack - New Location of the stack // r8 -# NewBsp - New BSP // r9 - not used -# -# Returns: -# Nothing. Goes to the Entry Point passing in the new parameters -# -ASM_PFX(SwitchStacks): - - # Adjust stack for - # 1) leave 4 registers space - # 2) let it 16 bytes aligned after call - sub $0x20,%r8 - and -0x10,%r8w # do not assume 16 bytes aligned - - mov %r8,%rsp - mov %rcx,%r10 - mov %rdx,%rcx - callq *%r10 - - # - # no ret as we have a new stack and we jumped to the new location - # - ret - -#SwitchStacks ENDP - - -.set EFI_SUCCESS, 0 -.set EFI_WARN_RETURN_FROM_LONG_JUMP, 5 - -# -#Routine Description: -# -# This routine implements the x64 variant of the SetJump call. Its -# responsibility is to store system state information for a possible -# subsequent LongJump. -# -#Arguments: -# -# Pointer to CPU context save buffer. -# -#Returns: -# -# EFI_SUCCESS -# -# EFI_STATUS -# EFIAPI -# TransferControlLongJump ( -# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This, -# IN EFI_JUMP_BUFFER *Jump -# ); -# -# rcx - *This -# rdx - JumpBuffer -# -ASM_PFX(TransferControlSetJump): - mov %rbx,(%rdx) - mov %rsp,0x8(%rdx) - mov %rbp,0x10(%rdx) - mov %rdi,0x18(%rdx) - mov %rsi,0x20(%rdx) - mov %r10,0x28(%rdx) - mov %r11,0x30(%rdx) - mov %r12,0x38(%rdx) - mov %r13,0x40(%rdx) - mov %r14,0x48(%rdx) - mov %r15,0x50(%rdx) - #; save non-volatile fp registers - stmxcsr 0x60(%rdx) - lea 0x68(%rdx), %rax - movdqu %xmm6, (%rax) - movdqu %xmm7, 0x10(%rax) - movdqu %xmm8, 0x20(%rax) - movdqu %xmm9, 0x30(%rax) - movdqu %xmm10, 0x40(%rax) - movdqu %xmm11, 0x50(%rax) - movdqu %xmm12, 0x60(%rax) - movdqu %xmm13, 0x70(%rax) - movdqu %xmm14, 0x80(%rax) - movdqu %xmm15, 0x90(%rax) - mov (%rsp),%rax - mov %rax,0x58(%rdx) - mov $0x0,%rax - retq - - -# -# EFI_STATUS -# EFIAPI -# TransferControlLongJump ( -# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This, // rcx -# IN EFI_JUMP_BUFFER *Jump // rdx -# ); -# -# -ASM_PFX(TransferControlLongJump): - # set return from SetJump to EFI_WARN_RETURN_FROM_LONG_JUMP - #; load non-volatile fp registers - ldmxcsr 0x60(%rdx) - lea 0x68(%rdx), %rax - movdqu (%rax), %xmm6 - movdqu 0x10(%rax), %xmm7 - movdqu 0x20(%rax), %xmm8 - movdqu 0x30(%rax), %xmm9 - movdqu 0x40(%rax), %xmm10 - movdqu 0x50(%rax), %xmm11 - movdqu 0x60(%rax), %xmm12 - movdqu 0x70(%rax), %xmm13 - movdqu 0x80(%rax), %xmm14 - movdqu 0x90(%rax), %xmm15 - mov $0x5,%rax - mov (%rdx),%rbx - mov 0x8(%rdx),%rsp - mov 0x10(%rdx),%rbp - mov 0x18(%rdx),%rdi - mov 0x20(%rdx),%rsi - mov 0x28(%rdx),%r10 - mov 0x30(%rdx),%r11 - mov 0x38(%rdx),%r12 - mov 0x40(%rdx),%r13 - mov 0x48(%rdx),%r14 - mov 0x50(%rdx),%r15 - add $0x8,%rsp - jmpq *0x58(%rdx) - mov $0x5,%rax - retq - +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2008 - 2010, 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.
+#
+# Module Name:
+# ProcessorAsms.S
+#
+# Abstract:
+# This is separated from processor.c to allow this functions to be built with /O1
+#
+#
+#------------------------------------------------------------------------------
+#include <EfiBind.h>
+
+ .text
+
+.globl ASM_PFX(SwitchStacks)
+.globl ASM_PFX(TransferControlSetJump)
+.globl ASM_PFX(TransferControlLongJump)
+
+#
+# Routine Description:
+# This allows the caller to switch the stack and goes to the new entry point
+#
+# Arguments:
+# EntryPoint - Pointer to the location to enter // rcx
+# Parameter - Parameter to pass in // rdx
+# NewStack - New Location of the stack // r8
+# NewBsp - New BSP // r9 - not used
+#
+# Returns:
+# Nothing. Goes to the Entry Point passing in the new parameters
+#
+ASM_PFX(SwitchStacks):
+
+ # Adjust stack for
+ # 1) leave 4 registers space
+ # 2) let it 16 bytes aligned after call
+ sub $0x20,%r8
+ and -0x10,%r8w # do not assume 16 bytes aligned
+
+ mov %r8,%rsp
+ mov %rcx,%r10
+ mov %rdx,%rcx
+ callq *%r10
+
+ #
+ # no ret as we have a new stack and we jumped to the new location
+ #
+ ret
+
+#SwitchStacks ENDP
+
+
+.set EFI_SUCCESS, 0
+.set EFI_WARN_RETURN_FROM_LONG_JUMP, 5
+
+#
+#Routine Description:
+#
+# This routine implements the x64 variant of the SetJump call. Its
+# responsibility is to store system state information for a possible
+# subsequent LongJump.
+#
+#Arguments:
+#
+# Pointer to CPU context save buffer.
+#
+#Returns:
+#
+# EFI_SUCCESS
+#
+# EFI_STATUS
+# EFIAPI
+# TransferControlLongJump (
+# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This,
+# IN EFI_JUMP_BUFFER *Jump
+# );
+#
+# rcx - *This
+# rdx - JumpBuffer
+#
+ASM_PFX(TransferControlSetJump):
+ mov %rbx,(%rdx)
+ mov %rsp,0x8(%rdx)
+ mov %rbp,0x10(%rdx)
+ mov %rdi,0x18(%rdx)
+ mov %rsi,0x20(%rdx)
+ mov %r10,0x28(%rdx)
+ mov %r11,0x30(%rdx)
+ mov %r12,0x38(%rdx)
+ mov %r13,0x40(%rdx)
+ mov %r14,0x48(%rdx)
+ mov %r15,0x50(%rdx)
+ #; save non-volatile fp registers
+ stmxcsr 0x60(%rdx)
+ lea 0x68(%rdx), %rax
+ movdqu %xmm6, (%rax)
+ movdqu %xmm7, 0x10(%rax)
+ movdqu %xmm8, 0x20(%rax)
+ movdqu %xmm9, 0x30(%rax)
+ movdqu %xmm10, 0x40(%rax)
+ movdqu %xmm11, 0x50(%rax)
+ movdqu %xmm12, 0x60(%rax)
+ movdqu %xmm13, 0x70(%rax)
+ movdqu %xmm14, 0x80(%rax)
+ movdqu %xmm15, 0x90(%rax)
+ mov (%rsp),%rax
+ mov %rax,0x58(%rdx)
+ mov $0x0,%rax
+ retq
+
+
+#
+# EFI_STATUS
+# EFIAPI
+# TransferControlLongJump (
+# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This, // rcx
+# IN EFI_JUMP_BUFFER *Jump // rdx
+# );
+#
+#
+ASM_PFX(TransferControlLongJump):
+ # set return from SetJump to EFI_WARN_RETURN_FROM_LONG_JUMP
+ #; load non-volatile fp registers
+ ldmxcsr 0x60(%rdx)
+ lea 0x68(%rdx), %rax
+ movdqu (%rax), %xmm6
+ movdqu 0x10(%rax), %xmm7
+ movdqu 0x20(%rax), %xmm8
+ movdqu 0x30(%rax), %xmm9
+ movdqu 0x40(%rax), %xmm10
+ movdqu 0x50(%rax), %xmm11
+ movdqu 0x60(%rax), %xmm12
+ movdqu 0x70(%rax), %xmm13
+ movdqu 0x80(%rax), %xmm14
+ movdqu 0x90(%rax), %xmm15
+ mov $0x5,%rax
+ mov (%rdx),%rbx
+ mov 0x8(%rdx),%rsp
+ mov 0x10(%rdx),%rbp
+ mov 0x18(%rdx),%rdi
+ mov 0x20(%rdx),%rsi
+ mov 0x28(%rdx),%r10
+ mov 0x30(%rdx),%r11
+ mov 0x38(%rdx),%r12
+ mov 0x40(%rdx),%r13
+ mov 0x48(%rdx),%r14
+ mov 0x50(%rdx),%r15
+ add $0x8,%rsp
+ jmpq *0x58(%rdx)
+ mov $0x5,%rax
+ retq
+
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