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hopefully pool scan page faults

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This commit is contained in:
lhodges1 2023-08-30 23:38:12 +10:00
parent 3f2302f9a7
commit 02fb35f419
1 changed files with 12 additions and 7 deletions
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19
driver/pool.c
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@ -294,6 +294,9 @@ VOID WalkKernelPageTables(PVOID AddressBuffer)
for ( INT pml4_index = 0; pml4_index < PML4_ENTRY_COUNT; pml4_index++ )
{
if ( !MmIsAddressValid( pml4_base.BitAddress + pml4_index * sizeof( UINT64 ) ) )
continue;
pml4_entry.BitAddress = *(UINT64*)( pml4_base.BitAddress + pml4_index * sizeof( UINT64 ) );
if ( pml4_entry.Bits.Present == NULL )
@ -308,6 +311,9 @@ VOID WalkKernelPageTables(PVOID AddressBuffer)
for ( INT pdpt_index = 0; pdpt_index < PDPT_ENTRY_COUNT; pdpt_index++ )
{
if ( !MmIsAddressValid( pdpt_base + pdpt_index * sizeof( UINT64 ) ) )
continue;
pdpt_entry.BitAddress = *( UINT64* )( pdpt_base + pdpt_index * sizeof( UINT64 ) );
if ( pdpt_entry.Bits.Present == NULL )
@ -329,6 +335,9 @@ VOID WalkKernelPageTables(PVOID AddressBuffer)
for ( INT pd_index = 0; pd_index < PD_ENTRY_COUNT; pd_index++ )
{
if ( !MmIsAddressValid( pd_base + pd_index * sizeof( UINT64 ) ) )
continue;
pd_entry.BitAddress = *( UINT64* )( pd_base + pd_index * sizeof( UINT64 ) );
if ( pd_entry.Bits.Present == NULL )
@ -341,13 +350,6 @@ VOID WalkKernelPageTables(PVOID AddressBuffer)
continue;
}
/*
* There always seems to be a page fault every so often when using
* MmGetVirtualForPhysical on the pd_entry physical address...
*/
if ( !MmIsAddressValid( pd_entry.BitAddress ) )
continue;
physical.QuadPart = pd_entry.Bits.PhysicalAddress << PAGE_4KB_SHIFT;
pt_base = MmGetVirtualForPhysical( physical );
@ -357,6 +359,9 @@ VOID WalkKernelPageTables(PVOID AddressBuffer)
for ( INT pt_index = 0; pt_index < PT_ENTRY_COUNT; pt_index++ )
{
if ( !MmIsAddressValid( pt_base + pt_index * sizeof( UINT64 ) ) )
continue;
pt_entry.BitAddress = *( UINT64* )( pt_base + pt_index * sizeof( UINT64 ) );
if ( pt_entry.Bits.Present == NULL )