Changeset 36329 in vbox for trunk/src/VBox/HostDrivers

Timestamp:

Mar 21, 2011 4:47:48 PM (14 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

70660

Message:

PCI: per-VM initialization (for IOMMU domains)

Location:

trunk/src/VBox/HostDrivers/VBoxPci

Files:

• VBoxPci.c (modified) (5 diffs)
• VBoxPciInternal.h (modified) (3 diffs)

trunk/src/VBox/HostDrivers/VBoxPci/VBoxPci.c

@@ -201 +201 @@
     PVBOXRAWPCIINS pThis = DEVPORT_2_VBOXRAWPCIINS(pPort);
     int rc;
-    
+
     rc = vboxPciOsDevDestroy(pThis);
     if (rc == VINF_SUCCESS)
@@ -210 +210 @@
             pThis->hFastMtx = NIL_RTSEMFASTMUTEX;
         }
-        
+
         if (pThis->hSpinlock)
         {
@@ -216 +216 @@
             pThis->hSpinlock = NIL_RTSPINLOCK;
         }
-        
+
         vboxPciGlobalsLock(pThis->pGlobals);
         vboxPciUnlinkInstanceLocked(pThis->pGlobals, pThis);
@@ -486 +486 @@
 }
 
+/**
+ * @copydoc RAWPCIFACTORY::pfnInitVm
+ */
+static DECLCALLBACK(int)  vboxPciFactoryInitVm(PRAWPCIFACTORY       pFactory,
+                                               PVM                  pVM,
+                                               PRAWPCIVM            pPciData)
+{
+    PVBOXRAWPCIVM pThis = (PVBOXRAWPCIVM)RTMemAllocZ(sizeof(VBOXRAWPCIVM));
+    int rc;
+
+    if (!pThis)
+         return VERR_NO_MEMORY;
+
+    rc = RTSemFastMutexCreate(&pThis->hFastMtx);
+    if (RT_SUCCESS(rc))
+    {
+        rc = vboxPciOsInitVm(pThis, pVM);
+
+        if (RT_SUCCESS(rc))
+        {
+            pPciData->pDriverData = pThis;
+            return VINF_SUCCESS;
+        }
+
+        RTSemFastMutexDestroy(pThis->hFastMtx);
+        pThis->hFastMtx = NIL_RTSEMFASTMUTEX;
+        RTMemFree(pThis);
+    }
+
+    return rc;
+}
+
+/**
+ * @copydoc RAWPCIFACTORY::pfnDeinitVm
+ */
+static DECLCALLBACK(void)  vboxPciFactoryDeinitVm(PRAWPCIFACTORY       pFactory,
+                                                  PVM                  pVM,
+                                                  PRAWPCIVM            pPciData)
+{
+    if (pPciData->pDriverData)
+    {
+        PVBOXRAWPCIVM pThis = pPciData->pDriverData;
+
+        vboxPciOsDeinitVm(pThis, pVM);
+
+        if (pThis->hFastMtx)
+        {
+            RTSemFastMutexDestroy(pThis->hFastMtx);
+            pThis->hFastMtx = NIL_RTSEMFASTMUTEX;
+        }
+
+        RTMemFree(pThis);
+        pPciData->pDriverData = NULL;
+    }
+}
+
+
 static DECLHIDDEN(bool) vboxPciCanUnload(PVBOXRAWPCIGLOBALS pGlobals)
 {
@@ -579 +636 @@
         pGlobals->RawPciFactory.pfnRelease = vboxPciFactoryRelease;
         pGlobals->RawPciFactory.pfnCreateAndConnect = vboxPciFactoryCreateAndConnect;
+        pGlobals->RawPciFactory.pfnInitVm = vboxPciFactoryInitVm;
+        pGlobals->RawPciFactory.pfnDeinitVm = vboxPciFactoryDeinitVm;
         memcpy(pGlobals->SupDrvFactory.szName, "VBoxRawPci", sizeof("VBoxRawPci"));
         pGlobals->SupDrvFactory.pfnQueryFactoryInterface = vboxPciQueryFactoryInterface;

trunk/src/VBox/HostDrivers/VBoxPci/VBoxPciInternal.h

@@ -42 +42 @@
 /* Forward declaration. */
 typedef struct VBOXRAWPCIGLOBALS *PVBOXRAWPCIGLOBALS;
+typedef struct VBOXRAWPCIVM      *PVBOXRAWPCIVM;
 typedef struct VBOXRAWPCIINS     *PVBOXRAWPCIINS;
 
@@ -87 +88 @@
 
 /**
+ * Per-VM data of the VBox PCI driver. Pointed to by pVM->rawpci.s.pOsData.
+ *
+ */
+typedef struct VBOXRAWPCIVM
+{
+    /** Mutex protecting state changes. */
+    RTSEMFASTMUTEX hFastMtx;
+
+#ifdef RT_OS_LINUX
+# ifdef VBOX_WITH_IOMMU
+    struct iommu_domain* iommu_domain;
+# endif
+#endif
+} VBOXRAWPCIVM;
+
+/**
  * The global data of the VBox PCI driver.
  *
@@ -114 +131 @@
     struct module    * pciStubModule;
 #endif
-
 } VBOXRAWPCIGLOBALS;
 
 DECLHIDDEN(int)  vboxPciInit(PVBOXRAWPCIGLOBALS pGlobals);
 DECLHIDDEN(void) vboxPciShutdown(PVBOXRAWPCIGLOBALS pGlobals);
+
+DECLHIDDEN(int)  vboxPciOsInitVm(PVBOXRAWPCIVM pThis,   PVM pVM);
+DECLHIDDEN(void) vboxPciOsDeinitVm(PVBOXRAWPCIVM pThis, PVM pVM);
 
 DECLHIDDEN(int)  vboxPciOsDevInit  (PVBOXRAWPCIINS pIns, uint32_t fFlags);