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Assign page map routines

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This commit is contained in:
Aiken Harris
2025-08-17 00:29:28 +02:00
parent f77f2bbf92
commit 720d525b95
2 changed files with 14 additions and 0 deletions
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7
xtoskrnl/mm/amd64/init.c
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@@ -4,6 +4,7 @@
* FILE: xtoskrnl/mm/amd64/init.c * FILE: xtoskrnl/mm/amd64/init.c
* DESCRIPTION: Architecture specific Memory Manager initialization routines * DESCRIPTION: Architecture specific Memory Manager initialization routines
* DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org> * DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org>
* Aiken Harris <harraiken91@gmail.com>
*/ */
#include <xtos.h> #include <xtos.h>
@@ -23,6 +24,9 @@ MmInitializePageMapSupport(VOID)
/* Check if XPA is enabled */ /* Check if XPA is enabled */
if(MmpGetExtendedPhysicalAddressingStatus()) if(MmpGetExtendedPhysicalAddressingStatus())
{ {
/* XPA enabled, use LA57 paging (PML5) */
MmpPageMapRoutines = &MmpPml5Routines;
/* Set PML5 page map information */ /* Set PML5 page map information */
MmpPageMapInfo.Xpa = TRUE; MmpPageMapInfo.Xpa = TRUE;
@@ -35,6 +39,9 @@ MmInitializePageMapSupport(VOID)
} }
else else
{ {
/* XPA disabled, use LA48 paging (PML4) */
MmpPageMapRoutines = &MmpPml4Routines;
/* Set PML4 page map information */ /* Set PML4 page map information */
MmpPageMapInfo.Xpa = FALSE; MmpPageMapInfo.Xpa = FALSE;

7
xtoskrnl/mm/i686/init.c
View File

@@ -4,6 +4,7 @@
* FILE: xtoskrnl/mm/i686/init.c * FILE: xtoskrnl/mm/i686/init.c
* DESCRIPTION: Architecture specific Memory Manager initialization routines * DESCRIPTION: Architecture specific Memory Manager initialization routines
* DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org> * DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org>
* Aiken Harris <harraiken91@gmail.com>
*/ */
#include <xtos.h> #include <xtos.h>
@@ -23,6 +24,9 @@ MmInitializePageMapSupport(VOID)
/* Check if XPA is enabled */ /* Check if XPA is enabled */
if(MmpGetExtendedPhysicalAddressingStatus()) if(MmpGetExtendedPhysicalAddressingStatus())
{ {
/* XPA enabled, use modern PAE paging (PML3) */
MmpPageMapRoutines = &MmpPml3Routines;
/* Set PML3 page map information */ /* Set PML3 page map information */
MmpPageMapInfo.Xpa = TRUE; MmpPageMapInfo.Xpa = TRUE;
@@ -36,6 +40,9 @@ MmInitializePageMapSupport(VOID)
} }
else else
{ {
/* XPA disabled, use legacy i386 paging (PML2) */
MmpPageMapRoutines = &MmpPml2Routines;
/* Set PML2 page map information */ /* Set PML2 page map information */
MmpPageMapInfo.Xpa = FALSE; MmpPageMapInfo.Xpa = FALSE;