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- implement MmInitGlobalKernelPageDirectory, MmInitializeHandBuiltProcess
- fix MmUpdatePageDir

svn path=/branches/ros-amd64-bringup/; revision=44025
This commit is contained in:
Timo Kreuzer
2009-11-08 03:49:08 +00:00
parent a1908d10b4
commit a97697982b
2 changed files with 59 additions and 12 deletions
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reactos/ntoskrnl/include/internal/amd64/mm.h
+2 -1
View File
@@ -17,7 +17,8 @@ MmGetPageDirectory(VOID)
#define PAGE_MASK(x) ((x)&(~0xfff))
#define PAE_PAGE_MASK(x) ((x)&(~0xfffLL))
#define HYPER_SPACE 0xFFFFF70000000000ULL
#define MI_HYPER_SPACE_START 0xFFFFF70000000000ULL
#define MI_HYPER_SPACE_END 0xFFFFF77FFFFFFFFFULL
/* Base addresses of PTE and PDE */
//#define PAGETABLE_MAP PTE_BASE
reactos/ntoskrnl/mm/amd64/page.c
+57 -11
View File
@@ -18,10 +18,12 @@
#pragma alloc_text(INIT, MiInitPageDirectoryMap)
#endif
extern MMPTE HyperTemplatePte;
/* GLOBALS *****************************************************************/
ULONG64 MmGlobalKernelPageDirectory[512];
ULONG Ke386GlobalPagesEnabled = 0;
/* PRIVATE FUNCTIONS *******************************************************/
@@ -437,7 +439,7 @@ NTAPI
MmUpdatePageDir(PEPROCESS Process, PVOID Address, ULONG Size)
{
ULONG StartIndex, EndIndex, Index;
PULONG64 Pde;
PMMPTE Pte;
/* Sanity check */
if (Address < MmSystemRangeStart)
@@ -446,27 +448,32 @@ MmUpdatePageDir(PEPROCESS Process, PVOID Address, ULONG Size)
}
/* Get pointer to the page directory to update */
if (Process != NULL && Process != PsGetCurrentProcess())
if (Process && Process != PsGetCurrentProcess())
{
// Pde = MmCreateHyperspaceMapping(PTE_TO_PFN(Process->Pcb.DirectoryTableBase[0]));
// Pte = MmCreateHyperspaceMapping(PTE_TO_PFN(Process->Pcb.DirectoryTableBase[0]));
}
else
{
Pde = (PULONG64)PXE_BASE;
Pte = (PMMPTE)PXE_BASE;
}
/* Update PML4 entries */
StartIndex = VAtoPXI(Address);
EndIndex = VAtoPXI((ULONG64)Address + Size);
EndIndex = VAtoPXI((ULONG64)Address + Size - 1);
for (Index = StartIndex; Index <= EndIndex; Index++)
{
if (Index != VAtoPXI(PXE_BASE))
{
(void)InterlockedCompareExchangePointer((PVOID*)&Pde[Index],
(PVOID)MmGlobalKernelPageDirectory[Index],
0);
InterlockedCompareExchange64(&Pte[Index].u.Long,
MmGlobalKernelPageDirectory[Index],
0);
if (!MiIsHyperspaceAddress(Pte))
__invlpg((PVOID)((ULONG64)Index * PAGE_SIZE));
}
}
if (MiIsHyperspaceAddress(Pte))
MmDeleteHyperspaceMapping((PVOID)PAGE_ROUND_DOWN(Pte));
}
VOID
@@ -474,7 +481,35 @@ INIT_FUNCTION
NTAPI
MmInitGlobalKernelPageDirectory(VOID)
{
UNIMPLEMENTED;
PULONG64 CurrentPageDirectory = (PULONG64)PXE_BASE;
MMPTE Pte;
ULONG i;
/* Setup template pte */
HyperTemplatePte.u.Long = 0;
HyperTemplatePte.u.Hard.Valid = 1;
HyperTemplatePte.u.Hard.Write = 1;
HyperTemplatePte.u.Hard.Dirty = 1;
HyperTemplatePte.u.Hard.Accessed = 1;
if (Ke386GlobalPagesEnabled)
HyperTemplatePte.u.Hard.Global = 1;
for (i = VAtoPXI(MmSystemRangeStart); i < 512; i++)
{
if ((i < VAtoPXI(PTE_BASE) || i > VAtoPXI(PTE_TOP)) &&
(i < VAtoPXI(MI_HYPER_SPACE_START) || i > VAtoPXI(MI_HYPER_SPACE_END)) &&
MmGlobalKernelPageDirectory[i] == 0 &&
CurrentPageDirectory[i] != 0)
{
Pte.u.Long = CurrentPageDirectory[i];
if (Ke386GlobalPagesEnabled)
{
Pte.u.Hard.Global = 1;
CurrentPageDirectory[i] = Pte.u.Hard.Global;
}
MmGlobalKernelPageDirectory[i] = Pte.u.Hard.Global;
}
}
}
NTSTATUS
@@ -482,8 +517,19 @@ NTAPI
MmInitializeHandBuiltProcess(IN PEPROCESS Process,
IN PULONG_PTR DirectoryTableBase)
{
UNIMPLEMENTED;
return STATUS_UNSUCCESSFUL;
/* Share the directory base with the idle process */
DirectoryTableBase[0] = PsGetCurrentProcess()->Pcb.DirectoryTableBase[0];
DirectoryTableBase[1] = PsGetCurrentProcess()->Pcb.DirectoryTableBase[1];
/* Initialize the Addresss Space */
KeInitializeGuardedMutex(&Process->AddressCreationLock);
Process->Vm.WorkingSetExpansionLinks.Flink = NULL;
ASSERT(Process->VadRoot.NumberGenericTableElements == 0);
Process->VadRoot.BalancedRoot.u1.Parent = &Process->VadRoot.BalancedRoot;
/* The process now has an address space */
Process->HasAddressSpace = TRUE;
return STATUS_SUCCESS;
}
BOOLEAN