diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm')
| -rw-r--r-- | roms/edk2/UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/roms/edk2/UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm b/roms/edk2/UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm new file mode 100644 index 000000000..87a4125d4 --- /dev/null +++ b/roms/edk2/UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm @@ -0,0 +1,24 @@ +;------------------------------------------------------------------------------
+; @file
+; Sets the CR3 register for 64-bit paging
+;
+; Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+;------------------------------------------------------------------------------
+
+BITS 32
+
+;
+; Modified: EAX
+;
+SetCr3ForPageTables64:
+
+ ;
+ ; These pages are built into the ROM image in X64/PageTables.asm
+ ;
+ mov eax, ADDR_OF(TopLevelPageDirectory)
+ mov cr3, eax
+
+ OneTimeCallRet SetCr3ForPageTables64
+
|