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| author | Michael Kinney <michael.d.kinney@intel.com> | 2017-05-17 12:19:16 -0700 |
|---|---|---|
| committer | Michael Kinney <michael.d.kinney@intel.com> | 2017-05-22 19:43:46 -0700 |
| commit | 3b2928b46987693caaaeefbb7b799d1e1de803c0 (patch) | |
| tree | 1e24b1eccb7a50e737e8c7969dcebcaa35f28cad /UefiCpuPkg/Library/MpInitLib/X64 | |
| parent | ac63e9392e7aa3791a4ea00e43c0658e6b20e2ee (diff) | |
| download | edk2-3b2928b46987693caaaeefbb7b799d1e1de803c0.tar.gz edk2-3b2928b46987693caaaeefbb7b799d1e1de803c0.tar.bz2 edk2-3b2928b46987693caaaeefbb7b799d1e1de803c0.zip | |
UefiCpuPkg/MpInitLib: Fix X64 XCODE5/NASM compatibility issues
https://bugzilla.tianocore.org/show_bug.cgi?id=565
Fix NASM compatibility issues with XCODE5 tool chain.
The XCODE5 tool chain for X64 builds using PIE (Position
Independent Executable). For most assembly sources using
PIE mode does not cause any issues.
However, if assembly code is copied to a different address
(such as AP startup code in the MpInitLib), then the
X64 assembly source must be implemented to be compatible
with PIE mode that uses RIP relative addressing.
The specific changes in this patch are:
* Use LEA instruction instead of MOV instruction to lookup
the addresses of functions.
* The assembly function RendezvousFunnelProc() is copied
below 1MB so it can be executed as part of the MpInitLib
AP startup sequence. RendezvousFunnelProc() calls the
external function InitializeFloatingPointUnits(). The
absolute address of InitializeFloatingPointUnits() is
added to the MP_CPU_EXCHANGE_INFO structure that is passed
to RendezvousFunnelProc().
Cc: Andrew Fish <afish@apple.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Andrew Fish <afish@apple.com>
Diffstat (limited to 'UefiCpuPkg/Library/MpInitLib/X64')
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/X64/MpEqu.inc | 3 | ||||
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm | 8 |
2 files changed, 6 insertions, 5 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/X64/MpEqu.inc b/UefiCpuPkg/Library/MpInitLib/X64/MpEqu.inc index a63cd23a40..5b2529b5cb 100644 --- a/UefiCpuPkg/Library/MpInitLib/X64/MpEqu.inc +++ b/UefiCpuPkg/Library/MpInitLib/X64/MpEqu.inc @@ -1,5 +1,5 @@ ;------------------------------------------------------------------------------ ;
-; Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
+; Copyright (c) 2015 - 2017, 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
@@ -40,4 +40,5 @@ EnableExecuteDisableLocation equ LockLocation + 5Ch Cr3Location equ LockLocation + 64h
InitFlagLocation equ LockLocation + 6Ch
CpuInfoLocation equ LockLocation + 74h
+InitializeFloatingPointUnitsAddress equ LockLocation + 84h
diff --git a/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm b/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm index fa54d01542..0b14a53466 100644 --- a/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm +++ b/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm @@ -1,5 +1,5 @@ ;------------------------------------------------------------------------------ ;
-; Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
+; Copyright (c) 2015 - 2017, 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
@@ -201,7 +201,7 @@ CProcedureInvoke: push rbp
mov rbp, rsp
- mov rax, ASM_PFX(InitializeFloatingPointUnits)
+ mov rax, qword [esi + InitializeFloatingPointUnitsAddress]
sub rsp, 20h
call rax ; Call assembly function to initialize FPU per UEFI spec
add rsp, 20h
@@ -282,11 +282,11 @@ AsmRelocateApLoopEnd: ;-------------------------------------------------------------------------------------
global ASM_PFX(AsmGetAddressMap)
ASM_PFX(AsmGetAddressMap):
- mov rax, ASM_PFX(RendezvousFunnelProc)
+ lea rax, [ASM_PFX(RendezvousFunnelProc)]
mov qword [rcx], rax
mov qword [rcx + 8h], LongModeStart - RendezvousFunnelProcStart
mov qword [rcx + 10h], RendezvousFunnelProcEnd - RendezvousFunnelProcStart
- mov rax, ASM_PFX(AsmRelocateApLoop)
+ lea rax, [ASM_PFX(AsmRelocateApLoop)]
mov qword [rcx + 18h], rax
mov qword [rcx + 20h], AsmRelocateApLoopEnd - AsmRelocateApLoopStart
ret
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