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audk/UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm

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UefiCpuPkg/ResetVector/Vtf0: Move Page Table/CR3 setting to a new file Now, Transition32FlatTo64Flat calls SetCr3ForPageTables64 which is located in Ia32/PageTables64.asm. This change is required so OVMF can replace the code in Ia32/PageTables64.asm with code that generates page tables in RAM. Note: Since this change does not impact the functionality of the current VTF0 binaries, they are not being updated. The resulting new binaries were tested to verify there is no regression. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jeff Fan <jeff.fan@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14714 6f19259b-4bc3-4df7-8a09-765794883524
2013-09-24 20:23:09 +02:00
;------------------------------------------------------------------------------
; @file
; Sets the CR3 register for 64-bit paging
;
; Copyright (c) 2008 - 2013, 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
UefiCpuPkg/ResetVector/Vtf0: Move Page Table/CR3 setting to a new file Now, Transition32FlatTo64Flat calls SetCr3ForPageTables64 which is located in Ia32/PageTables64.asm. This change is required so OVMF can replace the code in Ia32/PageTables64.asm with code that generates page tables in RAM. Note: Since this change does not impact the functionality of the current VTF0 binaries, they are not being updated. The resulting new binaries were tested to verify there is no regression. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jeff Fan <jeff.fan@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14714 6f19259b-4bc3-4df7-8a09-765794883524
2013-09-24 20:23:09 +02:00
;
;------------------------------------------------------------------------------
BITS 32
;
; Modified: EAX
;
SetCr3ForPageTables64:
;
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
; These pages are built into the ROM image in X64/PageTables.asm
UefiCpuPkg/ResetVector/Vtf0: Move Page Table/CR3 setting to a new file Now, Transition32FlatTo64Flat calls SetCr3ForPageTables64 which is located in Ia32/PageTables64.asm. This change is required so OVMF can replace the code in Ia32/PageTables64.asm with code that generates page tables in RAM. Note: Since this change does not impact the functionality of the current VTF0 binaries, they are not being updated. The resulting new binaries were tested to verify there is no regression. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jeff Fan <jeff.fan@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14714 6f19259b-4bc3-4df7-8a09-765794883524
2013-09-24 20:23:09 +02:00
;
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
mov eax, ADDR_OF(TopLevelPageDirectory)
UefiCpuPkg/ResetVector/Vtf0: Move Page Table/CR3 setting to a new file Now, Transition32FlatTo64Flat calls SetCr3ForPageTables64 which is located in Ia32/PageTables64.asm. This change is required so OVMF can replace the code in Ia32/PageTables64.asm with code that generates page tables in RAM. Note: Since this change does not impact the functionality of the current VTF0 binaries, they are not being updated. The resulting new binaries were tested to verify there is no regression. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jeff Fan <jeff.fan@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14714 6f19259b-4bc3-4df7-8a09-765794883524
2013-09-24 20:23:09 +02:00
mov cr3, eax
OneTimeCallRet SetCr3ForPageTables64