Changeset 89284 in vbox for trunk/include

Timestamp:

May 26, 2021 6:52:15 AM (4 years ago)

Author:

vboxsync

Message:

Intel IOMMU: bugref:9967 Address translation, WIP. Scaffolding for PASID (if and when we implement PASID in future).

File:

• trunk/include/VBox/pci.h (modified) (1 diff)

trunk/include/VBox/pci.h

@@ -660 +660 @@
                                                 VBOX_PCI_DEVFN_MAKE(VBOX_PCI_DEV_SB_IOAPIC, VBOX_PCI_FN_SB_IOAPIC))
 
+/**
+ * A PCI PASID (Process Address Space ID).
+ *
+ * A PASID is 20 bits wide. We use bit 31 to indicate the PASID is invalid or not
+ * present.
+ */
+typedef uint32_t PCIPASID;
+/** PCIPASID: Invalid or not present. */
+#define PCIPASID_F_INVALID          RT_BIT(31)
+/** Nil PCIPASID value. */
+#define NIL_PCIPASID                PCIPASID_F_INVALID
+
+
 #if defined(__cplusplus) && defined(IN_RING3)
 /* For RTStrPrintf(). */