Changeset 69100 in vbox for trunk/src/VBox/VMM

Timestamp:

Oct 17, 2017 9:22:36 AM (7 years ago)

Author:

vboxsync

Message:

PDM/PGM: Return 0xff to devices.

Location:

trunk/src/VBox/VMM

Files:

• VMMAll/PGMAllPhys.cpp (modified) (1 diff)
• VMMR0/PDMR0Device.cpp (modified) (1 diff)
• VMMR3/PDMDevHlp.cpp (modified) (1 diff)
• VMMRC/PDMRCDevice.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/PGMAllPhys.cpp

@@ -2524 +2524 @@
                     else
                     {
+                        if (enmOrigin == PGMACCESSORIGIN_DEVICE)    /* Questionable paranoia, should be removed. */
+                            memset(pvBuf, 0xff, cb);
                         pgmUnlock(pVM);
                         return rcStrict2;

trunk/src/VBox/VMM/VMMR0/PDMR0Device.cpp

@@ -87 +87 @@
         Log(("pdmRCDevHlp_PCIPhysRead: caller=%p/%d: returns %Rrc - Not bus master! GCPhys=%RGp cbRead=%#zx\n",
              pDevIns, pDevIns->iInstance, VERR_PDM_NOT_PCI_BUS_MASTER, GCPhys, cbRead));
+        memset(pvBuf, 0xff, cbRead);
         return VERR_PDM_NOT_PCI_BUS_MASTER;
     }

trunk/src/VBox/VMM/VMMR3/PDMDevHlp.cpp

@@ -1706 +1706 @@
         Log(("pdmR3DevHlp_PCIPhysRead: caller='%s'/%d: returns %Rrc - Not bus master! GCPhys=%RGp cbRead=%#zx\n",
              pDevIns->pReg->szName, pDevIns->iInstance, VERR_PDM_NOT_PCI_BUS_MASTER, GCPhys, cbRead));
+        memset(pvBuf, 0xff, cbRead);
         return VERR_PDM_NOT_PCI_BUS_MASTER;
     }

trunk/src/VBox/VMM/VMMRC/PDMRCDevice.cpp

@@ -84 +84 @@
         Log(("pdmRCDevHlp_PCIPhysRead: caller=%p/%d: returns %Rrc - Not bus master! GCPhys=%RGp cbRead=%#zx\n",
              pDevIns, pDevIns->iInstance, VERR_PDM_NOT_PCI_BUS_MASTER, GCPhys, cbRead));
+        memset(pvBuf, 0xff, cbRead);
         return VERR_PDM_NOT_PCI_BUS_MASTER;
     }