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audk/UefiCpuPkg/ResetVector/Vtf0/Ia16/ResetVectorVtf0.asm

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Adding files from OvmfPkg to common location. This is so multiple packages can use pre-built reset vector code. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9911 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-02 18:56:00 +01:00
;------------------------------------------------------------------------------
; @file
Fix ResetVectorVtf0.asm comment typo Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Reviewed-by: Jeff Fan <jeff.fan@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15193 6f19259b-4bc3-4df7-8a09-765794883524
2014-01-28 03:30:10 +01:00
; First code executed by processor after resetting.
Adding files from OvmfPkg to common location. This is so multiple packages can use pre-built reset vector code. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9911 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-02 18:56:00 +01:00
;
UefiCpuPkg VTF0 X64: Build page tables in NASM code Previously, we would build the page tables in Tools/FixupForRawSection.py. In order to let NASM build VTF0 from source during the EDK II build process, we need to move this into the VTF0 NASM code. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15822 6f19259b-4bc3-4df7-8a09-765794883524
2014-08-19 01:03:46 +02:00
; Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.<BR>
UefiCpuPkg: Replace BSD License with BSD+Patent License https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Ray Ni <ray.ni@intel.com>
2019-04-04 01:07:22 +02:00
; SPDX-License-Identifier: BSD-2-Clause-Patent
Adding files from OvmfPkg to common location. This is so multiple packages can use pre-built reset vector code. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9911 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-02 18:56:00 +01:00
;
;------------------------------------------------------------------------------
BITS 16
ALIGN 16
UefiCpuPkg VTF0 X64: Build page tables in NASM code Previously, we would build the page tables in Tools/FixupForRawSection.py. In order to let NASM build VTF0 from source during the EDK II build process, we need to move this into the VTF0 NASM code. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15822 6f19259b-4bc3-4df7-8a09-765794883524
2014-08-19 01:03:46 +02:00
;
; Pad the image size to 4k when page tables are in VTF0
;
; If the VTF0 image has page tables built in, then we need to make
; sure the end of VTF0 is 4k above where the page tables end.
;
; This is required so the page tables will be 4k aligned when VTF0 is
; located just below 0x100000000 (4GB) in the firmware device.
;
%ifdef ALIGN_TOP_TO_4K_FOR_PAGING
UefiCpuPkg/ResetVector:Add Option to reserve 4K region at 4GB REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4140 Some implementations may need to keep the initial Reset code to be separated out from rest of the code.This request is to add padding at lower 4K region below 4 GB which will result having only few jmp instructions and data at that region. Reviewed-by: Ray Ni <ray.ni@intel.com> Signed-off-by: Duggapu Chinni B <chinni.b.duggapu@intel.com>
2022-11-07 07:47:31 +01:00
TIMES (0x1000 - ($ - EndOfPageTables)) DB 0
;
; Pad the VTF0 Reset code for Bsp & Ap to 4k aligned block.
; Some implementations may need to keep the initial Reset code
; to be separated out from rest of the code.
; This padding will make sure lower 4K region below 4 GB may
; only contains few jmp instructions and data.
;
TIMES (0x1000 - 0x20) DB 0
UefiCpuPkg VTF0 X64: Build page tables in NASM code Previously, we would build the page tables in Tools/FixupForRawSection.py. In order to let NASM build VTF0 from source during the EDK II build process, we need to move this into the VTF0 NASM code. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15822 6f19259b-4bc3-4df7-8a09-765794883524
2014-08-19 01:03:46 +02:00
%endif
Adding files from OvmfPkg to common location. This is so multiple packages can use pre-built reset vector code. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9911 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-02 18:56:00 +01:00
;
UefiCpuPkg/ResetVector: Remove AP waking vector from ResetVector REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4494 Current reset vector uses 0xffffffe0 as AP waking vector, and expects GenFv generates code aligned on a 4k boundary which will jump to this location. However, some issues are listed below 1. GenFV doesn't generate code as the comment expects, because GenFv assumes no modifications are required to the VTF-0 'Volume Top File'. 2. Even if removing VFT0 signature and let GenFv to modify, Genfv is hard-code using another flash address 0xffffffd0. 3. In the same patch series, AP waking vector code is removed from GenFv, because no such usage anymore. The existing of first two issues also approve the usage is not available for a long time. Therefore, remove AP waking vector related code. Cc: Eric Dong <eric.dong@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Rahul Kumar <rahul1.kumar@intel.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Ray Ni <ray.ni@intel.com> Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
2023-07-10 03:47:50 +02:00
; 0xffffffe0
Adding files from OvmfPkg to common location. This is so multiple packages can use pre-built reset vector code. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9911 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-02 18:56:00 +01:00
;
UefiCpuPkg/ResetVector: Remove AP waking vector from ResetVector REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4494 Current reset vector uses 0xffffffe0 as AP waking vector, and expects GenFv generates code aligned on a 4k boundary which will jump to this location. However, some issues are listed below 1. GenFV doesn't generate code as the comment expects, because GenFv assumes no modifications are required to the VTF-0 'Volume Top File'. 2. Even if removing VFT0 signature and let GenFv to modify, Genfv is hard-code using another flash address 0xffffffd0. 3. In the same patch series, AP waking vector code is removed from GenFv, because no such usage anymore. The existing of first two issues also approve the usage is not available for a long time. Therefore, remove AP waking vector related code. Cc: Eric Dong <eric.dong@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Rahul Kumar <rahul1.kumar@intel.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Ray Ni <ray.ni@intel.com> Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
2023-07-10 03:47:50 +02:00
DD 0, 0, 0
Adding files from OvmfPkg to common location. This is so multiple packages can use pre-built reset vector code. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9911 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-02 18:56:00 +01:00
;
UefiCpuPkg/ResetVector: Remove AP waking vector from ResetVector REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4494 Current reset vector uses 0xffffffe0 as AP waking vector, and expects GenFv generates code aligned on a 4k boundary which will jump to this location. However, some issues are listed below 1. GenFV doesn't generate code as the comment expects, because GenFv assumes no modifications are required to the VTF-0 'Volume Top File'. 2. Even if removing VFT0 signature and let GenFv to modify, Genfv is hard-code using another flash address 0xffffffd0. 3. In the same patch series, AP waking vector code is removed from GenFv, because no such usage anymore. The existing of first two issues also approve the usage is not available for a long time. Therefore, remove AP waking vector related code. Cc: Eric Dong <eric.dong@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Rahul Kumar <rahul1.kumar@intel.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Ray Ni <ray.ni@intel.com> Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
2023-07-10 03:47:50 +02:00
; The VTF signature (0xffffffec)
Adding files from OvmfPkg to common location. This is so multiple packages can use pre-built reset vector code. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9911 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-02 18:56:00 +01:00
;
; VTF-0 means that the VTF (Volume Top File) code does not require
; any fixups.
;
vtfSignature:
DB 'V', 'T', 'F', 0
ALIGN 16
resetVector:
;
; Reset Vector
;
; This is where the processor will begin execution
;
UefiCpuPkg: Replace the un-necessary WBINVD instruction at the reset vector with two NOPs in VTF0. Signed-off-by: rsun3 Reviewed-by: mdkinney git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12085 6f19259b-4bc3-4df7-8a09-765794883524
2011-08-04 05:25:14 +02:00
nop
nop
UefiCpuPkg VTF0 X64: Build page tables in NASM code Previously, we would build the page tables in Tools/FixupForRawSection.py. In order to let NASM build VTF0 from source during the EDK II build process, we need to move this into the VTF0 NASM code. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15822 6f19259b-4bc3-4df7-8a09-765794883524
2014-08-19 01:03:46 +02:00
jmp EarlyBspInitReal16
Adding files from OvmfPkg to common location. This is so multiple packages can use pre-built reset vector code. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9911 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-02 18:56:00 +01:00
ALIGN 16
fourGigabytes: