drivers/bus/pcix/pcivrify.c

   1 /*
   2  * PROJECT:         ReactOS PCI Bus Driver
   3  * LICENSE:         BSD - See COPYING.ARM in the top level directory
   4  * FILE:            drivers/bus/pci/pcivrify.c
   5  * PURPOSE:         PCI Driver Verifier Support
   6  * PROGRAMMERS:     ReactOS Portable Systems Group
   7  */
   8
   9 /* INCLUDES *******************************************************************/
  10
  11 #include <pci.h>
  12
  13 #define NDEBUG
  14 #include <debug.h>
  15
  16 /* GLOBALS ********************************************************************/
  17
  18 BOOLEAN PciVerifierRegistered;
  19 PVOID PciVerifierNotificationHandle;
  20
  21 PCI_VERIFIER_DATA PciVerifierFailureTable[PCI_VERIFIER_CODES] =
  22 {
  23     {
  24         1,
  25         VFFAILURE_FAIL_LOGO,
  26         0,
  27         "The BIOS has reprogrammed the bus numbers of an active PCI device "
  28         "(!devstack %DevObj) during a dock or undock!"
  29     },
  30     {
  31         2,
  32         VFFAILURE_FAIL_LOGO,
  33         0,
  34         "A device in the system did not update it's PMCSR register in the spec "
  35         "mandated time (!devstack %DevObj, Power state D%Ulong)"
  36     },
  37     {
  38         3,
  39         VFFAILURE_FAIL_LOGO,
  40         0,
  41         "A driver controlling a PCI device has tried to access OS controlled "
  42         "configuration space registers (!devstack %DevObj, Offset 0x%Ulong1, "
  43         "Length 0x%Ulong2)"
  44     },
  45     {
  46         4,
  47         VFFAILURE_FAIL_UNDER_DEBUGGER,
  48         0,
  49         "A driver controlling a PCI device has tried to read or write from an "
  50         "invalid space using IRP_MN_READ/WRITE_CONFIG or via BUS_INTERFACE_STANDARD."
  51         "  NB: These functions take WhichSpace parameters of the form PCI_WHICHSPACE_*"
  52         " and not a BUS_DATA_TYPE (!devstack %DevObj, WhichSpace 0x%Ulong1)"
  53     },
  54 };
  55
  56 /* FUNCTIONS ******************************************************************/
  57
  58 PPCI_VERIFIER_DATA
  59 NTAPI
  60 PciVerifierRetrieveFailureData(IN ULONG FailureCode)
  61 {
  62     PPCI_VERIFIER_DATA VerifierData;
  63
  64     /* Scan the verifier failure table for this code */
  65     VerifierData = PciVerifierFailureTable;
  66     while (VerifierData->FailureCode != FailureCode)
  67     {
  68         /* Keep searching */
  69         ++VerifierData;
  70         ASSERT(VerifierData < &PciVerifierFailureTable[PCI_VERIFIER_CODES]);
  71     }
  72
  73     /* Return the entry for this code */
  74     return VerifierData;
  75 }
  76
  77 DRIVER_NOTIFICATION_CALLBACK_ROUTINE PciVerifierProfileChangeCallback;
  78
  79 NTSTATUS
  80 NTAPI
  81 PciVerifierProfileChangeCallback(IN PVOID NotificationStructure,
  82                                  IN PVOID Context)
  83 {
  84     UNREFERENCED_PARAMETER(NotificationStructure);
  85     UNREFERENCED_PARAMETER(Context);
  86
  87     /* This function is not yet implemented */
  88     UNIMPLEMENTED_DBGBREAK();
  89     return STATUS_SUCCESS;
  90 }
  91
  92 VOID
  93 NTAPI
  94 PciVerifierInit(IN PDRIVER_OBJECT DriverObject)
  95 {
  96     NTSTATUS Status;
  97
  98     /* Check if the kernel driver verifier is enabled */
  99     if (VfIsVerificationEnabled(VFOBJTYPE_SYSTEM_BIOS, NULL))
 100     {
 101         /* Register a notification for changes, to keep track of the PCI tree */
 102         Status = IoRegisterPlugPlayNotification(EventCategoryHardwareProfileChange,
 103                                                 0,
 104                                                 NULL,
 105                                                 DriverObject,
 106                                                 PciVerifierProfileChangeCallback,
 107                                                 NULL,
 108                                                 &PciVerifierNotificationHandle);
 109         if (NT_SUCCESS(Status)) PciVerifierRegistered = TRUE;
 110     }
 111 }
 112
 113 /* EOF */