RtlpHpSegMgrVaCtxInsert

INT64 __fastcall RtlpHpSegMgrVaCtxInsert(INT64 a1, INT64 rdx0){
  __int128 v2; 
  unsigned __int16 *v4; 
  INT64 v5; 
  unsigned __int64 v6; 
  UINT8 v7; 
  unsigned __int64 v8; 
  INT64 result; 
  _ETHREAD *CurrentThread; 
  unsigned int SessionId; 
  char v12; 
  int v13; 
  bool v14; 
  __int64 v15; 
  unsigned __int64 v16; 
  __int64 v17; 
  __int128 a2; 
  int v19; 
  unsigned __int16 *a3; 
  v2 = *(_OWORD *)(a1 + 40);
  a3 = 0i64;
  a2 = v2;
  RtlpHpQueryVA(rdx0, &a2, &a3, 0i64);
  v4 = a3;
  if( (*a3 & 0x8000u) != 0 )
  {
    *a3 ^= (*a3 ^ (*a3 + 1)) & 0x7FF;
    _InterlockedExchangeAdd64((volatile signed __int64 *)(*(__int16 *)(a1 + 20) + a1), 1ui64);
    v4 = a3;
  }
  v5 = a1 + 112;
  v6 = (unsigned __int64)*v4 >> 15;
  v7 = RtlpHpAcquireLockExclusive((INT64 *)(a1 + 112), *(_DWORD *)(a1 + 40) & 1);
  *((_QWORD *)v4 + 1) = *(_QWORD *)(a1 + 8 * v6 + 120);
  *(_QWORD *)(a1 + 8 * v6 + 120) = v4 + 4;
  v8 = v7;
  if( (*(_DWORD *)(a1 + 40) & 1) != 0 )
  {
    ExReleaseSpinLockExclusiveFromDpcLevel((INT64 *)(a1 + 112));
    result = (unsigned int)KiIrqlFlags;
    __writecr8(v8);
  }
  else
  {
    if( (_InterlockedExchangeAdd64((volatile signed __int64 *)v5, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
      ExfTryToWakePushLock((volatile INT64 *)v5);
    v19 = 0;
    CurrentThread = (_ETHREAD *)KeGetCurrentThread();
    if( (unsigned int)MiGetSystemRegionType(v5) == 1 )
      SessionId = MmGetSessionIdEx(*((_QWORD *)CurrentThread + 23));
    else
      SessionId = -1;
    --*((_WORD *)CurrentThread + 243);
    v12 = ++*((_BYTE *)CurrentThread + 794);
    v13 = (*((char *)CurrentThread + 792) | *((char *)CurrentThread + 870)) ^ 0x3F;
    while( 1 )
    {
      v14 = !_BitScanReverse((unsigned int *)&v15, v13);
      if( v14 )
        goto LABEL_12;
      v16 = *((_QWORD *)CurrentThread + 100) + 96 * v15;
      v13 &= ~(1 << v15);
      if( (*(_BYTE *)(v16 + 26) & 1) != 0
        && (*(_DWORD *)(v16 + 32) & 1) == 0
        && (*(_QWORD *)(v16 + 32) & 0x7FFFFFFFFFFFFFFCi64) == (v5 & 0x7FFFFFFFFFFFFFFCi64)
        && *(_DWORD *)(v16 + 40) == SessionId )
      {
        *(_BYTE *)(v16 + 26) &= ~1u;
        if( *(_QWORD *)(v16 + 32) )
          break;
      }
    }
    if( !v16 )
    {
LABEL_12:
      if( (*((_DWORD *)CurrentThread + 30) & 0x10000) == 0 )
        KeBugCheckEx(0x162u, (ULONG_PTR)CurrentThread, v5, SessionId, 0i64);
      goto LABEL_24;
    }
    *(_BYTE *)(v16 + 32) |= 2u;
    if( *(__int64 *)(v16 + 32) < 0 )
      KiAbEntryRemoveFromTree(v16);
    v19 = *(_DWORD *)(v16 + 88) & 0x1FFFF;
    *(_DWORD *)(v16 + 88) &= 0xFFFE0000;
    *(_BYTE *)(v16 + 25) &= ~1u;
    *(_QWORD *)(v16 + 32) = 0i64;
    v17 = (__int64)(v16 - *((_QWORD *)CurrentThread + 100)) / 96;
    if( v12 == 1 )
      *((_BYTE *)CurrentThread + 792) |= 1 << v17;
    else
      _InterlockedOr8((volatile signed __int8 *)CurrentThread + 870, 1 << v17);
LABEL_24:
    --*((_BYTE *)CurrentThread + 794);
    KiAbThreadRemoveBoosts((ULONG_PTR)CurrentThread, v5, (unsigned int *)&v19);
    v14 = (*((_WORD *)CurrentThread + 243))++ == 0xFFFF;
    if( v14 && *((_ETHREAD **)CurrentThread + 19) != (_ETHREAD *)((char *)CurrentThread + 152) )
      KiCheckForKernelApcDelivery();
    return KiLeaveGuardedRegionUnsafe((__int64)KeGetCurrentThread());
  }
  return result;
}

Referenced by: