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