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Ring3: Added MakeUserPageTableTemplate() for ARM.

This commit is contained in:
Mikhail Krichanov 2024-12-19 13:24:32 +03:00
parent ebe2f8089c
commit 2f3c4c9dc6
3 changed files with 75 additions and 8 deletions
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6
ArmPkg/Include/Chipset/ArmV7Mmu.h
View File

@ -162,8 +162,7 @@
TT_DESCRIPTOR_SECTION_NG_GLOBAL | \
TT_DESCRIPTOR_SECTION_S_SHARED | \
TT_DESCRIPTOR_SECTION_DOMAIN(0) | \
TT_DESCRIPTOR_SECTION_AP_NO_RW | \
TT_DESCRIPTOR_SECTION_AF)
TT_DESCRIPTOR_SECTION_AP_NO_RW)
#define TT_DESCRIPTOR_SECTION_WRITE_BACK (TT_DESCRIPTOR_SECTION_DEFAULT | \
TT_DESCRIPTOR_SECTION_CACHE_POLICY_WRITE_BACK_ALLOC)
@ -179,8 +178,7 @@
#define TT_DESCRIPTOR_PAGE_DEFAULT (TT_DESCRIPTOR_PAGE_TYPE_PAGE | \
TT_DESCRIPTOR_PAGE_NG_GLOBAL | \
TT_DESCRIPTOR_PAGE_AP_NO_RW | \
TT_DESCRIPTOR_PAGE_AF)
TT_DESCRIPTOR_PAGE_AP_NO_RW)
#define TT_DESCRIPTOR_PAGE_WRITE_BACK (TT_DESCRIPTOR_PAGE_DEFAULT | \
TT_DESCRIPTOR_PAGE_S_SHARED | \

48
ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibCore.c
View File

@ -86,7 +86,8 @@ PopulateLevel2PageTable (
IN UINT32 *SectionEntry,
IN UINT32 PhysicalBase,
IN UINT32 RemainLength,
IN ARM_MEMORY_REGION_ATTRIBUTES Attributes
IN ARM_MEMORY_REGION_ATTRIBUTES Attributes,
IN BOOLEAN UserTable
)
{
UINT32 *PageEntry;
@ -132,6 +133,10 @@ PopulateLevel2PageTable (
PageAttributes &= ~TT_DESCRIPTOR_PAGE_S_SHARED;
}
if (!UserTable) {
PageAttributes |= TT_DESCRIPTOR_PAGE_AF;
}
// Check if the Section Entry has already been populated. Otherwise attach a
// Level 2 Translation Table to it
if (*SectionEntry != 0) {
@ -220,7 +225,8 @@ STATIC
VOID
FillTranslationTable (
IN UINT32 *TranslationTable,
IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryRegion
IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryRegion,
IN BOOLEAN UserTable
)
{
UINT32 *SectionEntry;
@ -272,6 +278,10 @@ FillTranslationTable (
Attributes &= ~TT_DESCRIPTOR_SECTION_S_SHARED;
}
if (!UserTable) {
Attributes |= TT_DESCRIPTOR_SECTION_AF;
}
// Get the first section entry for this mapping
SectionEntry = TRANSLATION_TABLE_ENTRY_FOR_VIRTUAL_ADDRESS (TranslationTable, MemoryRegion->VirtualBase);
@ -307,7 +317,8 @@ FillTranslationTable (
SectionEntry,
PhysicalBase,
PageMapLength,
MemoryRegion->Attributes
MemoryRegion->Attributes,
UserTable
);
//
@ -364,7 +375,7 @@ ArmConfigureMmu (
ZeroMem (TranslationTable, TRANSLATION_TABLE_SECTION_SIZE);
while (MemoryTable->Length != 0) {
FillTranslationTable (TranslationTable, MemoryTable);
FillTranslationTable (TranslationTable, MemoryTable, FALSE);
MemoryTable++;
}
@ -424,3 +435,32 @@ ArmConfigureMmu (
ArmEnableMmu ();
return RETURN_SUCCESS;
}
EFI_STATUS
EFIAPI
ArmMakeUserPageTableTemplate (
IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable,
OUT UINTN *TranslationTableBase,
OUT UINTN *TranslationTableSize
)
{
VOID *TranslationTable;
TranslationTable = AllocateAlignedPages (
EFI_SIZE_TO_PAGES (TRANSLATION_TABLE_SECTION_SIZE),
TRANSLATION_TABLE_SECTION_ALIGNMENT
);
if (TranslationTable == NULL) {
return EFI_OUT_OF_RESOURCES;
}
ZeroMem (TranslationTable, TRANSLATION_TABLE_SECTION_SIZE);
FillTranslationTable (TranslationTable, MemoryTable, TRUE);
*TranslationTableBase = (UINTN)TranslationTable;
*TranslationTableSize = TRANSLATION_TABLE_SECTION_SIZE;
return EFI_SUCCESS;
}

29
MdeModulePkg/Core/Dxe/SysCall/ARM/InitializeARM.c
View File

@ -6,6 +6,7 @@
**/
#include <Library/ArmLib.h>
#include <Library/ArmMmuLib.h>
#include <Library/DefaultExceptionHandlerLib.h>
#include "DxeMain.h"
@ -97,6 +98,34 @@ SysCallBootService (
return Status;
}
VOID
EFIAPI
MakeUserPageTableTemplate (
OUT UINTN *UserPageTableTemplate,
OUT UINTN *UserPageTableTemplateSize
)
{
ARM_MEMORY_REGION_DESCRIPTOR Descriptor;
VOID *MemorySizeHob;
MemorySizeHob = GetFirstGuidHob (&gArmVirtSystemMemorySizeGuid);
ASSERT (MemorySizeHob != NULL);
if (MemorySizeHob == NULL) {
return;
}
Descriptor.PhysicalBase = PcdGet64 (PcdSystemMemoryBase);
Descriptor.VirtualBase = Descriptor.PhysicalBase;
Descriptor.Length = *(UINT64 *)GET_GUID_HOB_DATA (MemorySizeHob);
Descriptor.Attributes = ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK;
ArmMakeUserPageTableTemplate (
&Descriptor,
UserPageTableTemplate,
UserPageTableTemplateSize
);
}
VOID
EFIAPI
InitializeMsr (