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From: Liming Gao <liming.gao@intel.com>
To: edk2-devel@lists.01.org
Cc: Andrew Fish <afish@apple.com>, Jiewen Yao <jiewen.yao@intel.com>,
	Eric Dong <eric.dong@intel.com>, Laszlo Ersek <lersek@redhat.com>,
	Michael Kinney <michael.d.kinney@intel.com>
Subject: [Patch 4/7] UefiCpuPkg: Update CpuExceptionHandlerLib pass XCODE5 tool chain
Date: Wed, 10 Jan 2018 23:24:29 +0800	[thread overview]
Message-ID: <20180110152432.15964-5-liming.gao@intel.com> (raw)
In-Reply-To: <20180110152432.15964-1-liming.gao@intel.com>

Use the dummy address as jmp destination, and add the logic to fix up
the address to the absolute address at boot time.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
Cc: Andrew Fish <afish@apple.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
---
 .../X64/ExceptionHandlerAsm.nasm                   | 29 ++++++++++++++++------
 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.nasm b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.nasm
index ba8993d84b..a5fde0a875 100644
--- a/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.nasm
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.nasm
@@ -1,5 +1,5 @@
 ;------------------------------------------------------------------------------ ;
-; Copyright (c) 2012 - 2014, Intel Corporation. All rights reserved.<BR>
+; Copyright (c) 2012 - 2018, 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
@@ -40,7 +40,8 @@ AsmIdtVectorBegin:
     db      0x6a        ; push  #VectorNum
     db      ($ - AsmIdtVectorBegin) / ((AsmIdtVectorEnd - AsmIdtVectorBegin) / 32) ; VectorNum
     push    rax
-    mov     rax, ASM_PFX(CommonInterruptEntry)
+    db      0x48, 0xB8
+    dq      0 ;     mov     rax, ASM_PFX(CommonInterruptEntry)
     jmp     rax
 %endrep
 AsmIdtVectorEnd:
@@ -50,7 +51,9 @@ HookAfterStubHeaderBegin:
 @VectorNum:
     db      0          ; 0 will be fixed
     push    rax
-    mov     rax, HookAfterStubHeaderEnd
+    db      0x48, 0xB8
+JmpAbsoluteAddress:
+    dq      0 ;     mov     rax, HookAfterStubHeaderEnd
     jmp     rax
 HookAfterStubHeaderEnd:
     mov     rax, rsp
@@ -260,8 +263,7 @@ HasErrorCode:
     ; and make sure RSP is 16-byte aligned
     ;
     sub     rsp, 4 * 8 + 8
-    mov     rax, ASM_PFX(CommonExceptionHandler)
-    call    rax
+    call    ASM_PFX(CommonExceptionHandler)
     add     rsp, 4 * 8 + 8
 
     cli
@@ -369,11 +371,24 @@ DoIret:
 ; comments here for definition of address map
 global ASM_PFX(AsmGetTemplateAddressMap)
 ASM_PFX(AsmGetTemplateAddressMap):
-    mov     rax, AsmIdtVectorBegin
+    lea     rax, [AsmIdtVectorBegin]
     mov     qword [rcx], rax
     mov     qword [rcx + 0x8],  (AsmIdtVectorEnd - AsmIdtVectorBegin) / 32
-    mov     rax, HookAfterStubHeaderBegin
+    lea     rax, [HookAfterStubHeaderBegin]
     mov     qword [rcx + 0x10], rax
+
+; Fix up CommonInterruptEntry address
+    lea    rax, [ASM_PFX(CommonInterruptEntry)]
+    lea    rcx, [AsmIdtVectorBegin]
+%rep  32
+    mov    qword [rcx + (JmpAbsoluteAddress - HookAfterStubHeaderBegin)], rax
+    add    rcx, (AsmIdtVectorEnd - AsmIdtVectorBegin) / 32
+%endrep
+; Fix up HookAfterStubHeaderEnd
+    lea    rax, [HookAfterStubHeaderEnd]
+    lea    rcx, [JmpAbsoluteAddress]
+    mov    qword [rcx], rax
+
     ret
 
 ;-------------------------------------------------------------------------------------
-- 
2.11.0.windows.1



  parent reply	other threads:[~2018-01-10 15:21 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-10 15:24 [Patch 0/7] EDK2: Enable XCODE5 tool chain with NASM source Liming Gao
2018-01-10 15:24 ` [Patch 1/7] BaseTools: Disable -Wno-unused-const-variable in XCODE5 RELEASE target Liming Gao
2018-01-16  8:22   ` Zhu, Yonghong
2018-01-10 15:24 ` [Patch 2/7] BaseTools: Use nasm as the preferred assembly source files for XCODE5 tool Liming Gao
2018-01-16  8:24   ` Zhu, Yonghong
2018-01-10 15:24 ` [Patch 3/7] MdeModulePkg: Update DebugSupportDxe to pass XCODE5 build Liming Gao
2018-01-11  2:31   ` Zeng, Star
2018-01-10 15:24 ` Liming Gao [this message]
2018-01-10 19:21   ` [Patch 4/7] UefiCpuPkg: Update CpuExceptionHandlerLib pass XCODE5 tool chain Kinney, Michael D
2018-01-10 21:57     ` Kinney, Michael D
2018-01-11  2:21       ` Gao, Liming
2018-01-10 15:24 ` [Patch 5/7] UefiCpuPkg: Update SmmCpuFeatureLib " Liming Gao
2018-01-10 15:24 ` [Patch 6/7] UefiCpuPkg: Update PiSmmCpuDxeSmm " Liming Gao
2018-01-10 15:24 ` [Patch 7/7] OvmfPkg: Don't add -mno-mmx -mno-sse option for " Liming Gao
2018-01-10 18:22   ` Laszlo Ersek
2018-01-11  9:54 ` [Patch 0/7] EDK2: Enable XCODE5 tool chain with NASM source Laszlo Ersek
2018-01-11 10:02   ` Laszlo Ersek
2018-01-12  2:15     ` Gao, Liming

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