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UefiCpuPkg/ResetVector: Combine PageTables1G.asm and PageTables2M.asm 

Combine PageTables1G.asm and PageTables2M.asm to reuse code.

Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Cc: Debkumar De <debkumar.de@intel.com>
Cc: Catharine West <catharine.west@intel.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
This commit is contained in:
Liu, Zhiguang 2023-05-08 16:15:02 +08:00 committed by mergify[bot]
parent c19e3f578f
commit 0fba57da65
3 changed files with 33 additions and 76 deletions
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8
UefiCpuPkg/ResetVector/Vtf0/Vtf0.nasmb
View File

@ -2,7 +2,7 @@
; @file
; This file includes all other code files to assemble the reset vector code
;
; Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
; Copyright (c) 2008 - 2023, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
;------------------------------------------------------------------------------
@ -38,11 +38,7 @@
%include "PageTables.inc"
%ifdef ARCH_X64
%ifdef PAGE_TABLE_1G
%include "X64/PageTables1G.asm"
%else
%include "X64/PageTables2M.asm"
%endif
%include "X64/PageTables.asm"
%endif
%ifdef DEBUG_PORT80

38
UefiCpuPkg/ResetVector/Vtf0/X64/PageTables1G.asm → UefiCpuPkg/ResetVector/Vtf0/X64/PageTables.asm
View File

@ -1,10 +1,11 @@
;------------------------------------------------------------------------------
; @file
; Emits Page Tables for 1:1 mapping of the addresses 0 - 0x8000000000 (512GB)
; Emits Page Tables for 1:1 mapping.
; If using 1G page table, map addresses 0 - 0x8000000000 (512GB),
; else, map addresses 0 - 0x100000000 (4GB)
;
; Copyright (c) 2021 - 2023, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
; Linear-Address Translation to a 1-GByte Page
;
;------------------------------------------------------------------------------
@ -36,6 +37,7 @@ BITS 64
PAGE_NLE_ATTR)
%define PAGE_PDPTE_1GB(x) ((x << 30) + PAGE_BLE_ATTR)
%define PAGE_PDE_2MB(x) ((x << 21) + PAGE_BLE_ATTR)
ALIGN 16
@ -46,14 +48,36 @@ Pml4:
DQ PAGE_NLE(Pdp)
TIMES 0x1000 - ($ - Pml4) DB 0
%ifdef PAGE_TABLE_1G
Pdp:
;
; Page-directory pointer table (512 * 1GB entries => 512GB)
;
%assign i 0
%rep 512
DQ PAGE_PDPTE_1GB(i)
%assign i i+1
%endrep
%assign i 0
%rep 512
DQ PAGE_PDPTE_1GB(i)
%assign i i+1
%endrep
%else
Pdp:
;
; Page-directory pointer table (4 * 1GB entries => 4GB)
;
DQ PAGE_NLE(Pd)
DQ PAGE_NLE(Pd + 0x1000)
DQ PAGE_NLE(Pd + 0x2000)
DQ PAGE_NLE(Pd + 0x3000)
TIMES 0x1000 - ($ - Pdp) DB 0
Pd:
;
; Page-Directory (2048 * 2MB entries => 4GB)
; Four pages below, each is pointed by one entry in Pdp.
;
%assign i 0
%rep 0x800
DQ PAGE_PDE_2MB(i)
%assign i i+1
%endrep
%endif
EndOfPageTables:

63
UefiCpuPkg/ResetVector/Vtf0/X64/PageTables2M.asm
View File

@ -1,63 +0,0 @@
;------------------------------------------------------------------------------
; @file
; Emits Page Tables for 1:1 mapping of the addresses 0 - 0x100000000 (4GB)
;
; Copyright (c) 2008 - 2023, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
;------------------------------------------------------------------------------
BITS 64
%define ALIGN_TOP_TO_4K_FOR_PAGING
;
; Page table big leaf entry attribute:
; PDPTE 1GB entry or PDE 2MB entry
;
%define PAGE_BLE_ATTR (PAGE_SIZE + \
PAGE_ACCESSED + \
PAGE_DIRTY + \
PAGE_READ_WRITE + \
PAGE_PRESENT)
;
; Page table non-leaf entry attribute
;
%define PAGE_NLE_ATTR (PAGE_ACCESSED + \
PAGE_READ_WRITE + \
PAGE_PRESENT)
%define PAGE_NLE(address) (ADDR_OF(address) + \
PAGE_NLE_ATTR)
%define PAGE_PDE_2MB(x) ((x << 21) + PAGE_BLE_ATTR)
Pml4:
;
; PML4 (1 * 512GB entry)
;
DQ PAGE_NLE(Pdp)
TIMES 0x1000 - ($ - Pml4) DB 0
Pdp:
;
; Page-directory pointer table (4 * 1GB entries => 4GB)
;
DQ PAGE_NLE(Pd)
DQ PAGE_NLE(Pd + 0x1000)
DQ PAGE_NLE(Pd + 0x2000)
DQ PAGE_NLE(Pd + 0x3000)
TIMES 0x1000 - ($ - Pdp) DB 0
Pd:
;
; Page-Directory (2048 * 2MB entries => 4GB)
; Four pages below, each is pointed by one entry in Pdp.
;
%assign i 0
%rep 0x800
DQ PAGE_PDE_2MB(i)
%assign i i+1
%endrep
EndOfPageTables: