Changeset 82073 in vbox for trunk/include/VBox

Timestamp:

Nov 21, 2019 10:57:54 AM (5 years ago)

Author:

vboxsync

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

134879

Message:

DevPCI: Added a special return code to FNPCIIOREGIONMAP for telling the bus that the callback did the mapping and it should not use the registered handle to do so again. Needed for VGA (alternative was to reorder the callout order). bugref:9218

Location:

trunk/include/VBox

Files:

• err.h (modified) (2 diffs)
• vmm/pdmpcidev.h (modified) (1 diff)

trunk/include/VBox/err.h

@@ -2367 +2367 @@
 
 
-/** @name PCI Passtrhough Status Codes
+/** @name PCI Bus & Passthrough Status Codes
  * @{
  */
@@ -2379 +2379 @@
  * PCI passthrough currently works only if nested paging is active. */
 #define VERR_PCI_PASSTHROUGH_NO_NESTED_PAGING       (-5102)
+
+/** Special return code from a PCI I/O region mapping handler that tells the BUS
+ * that it has done the mapping already. */
+#define VINF_PCI_MAPPING_DONE                       5150
 /** @} */
 

trunk/include/VBox/vmm/pdmpcidev.h

@@ -100 +100 @@
  *
  * @returns VBox status code.
+ * @retval  VINF_PCI_MAPPING_DONE if the caller already did the mapping and the
+ *          PCI bus should not use the handle it got to do the registration
+ *          again.  (Only allowed when @a GCPhysAddress is not NIL_RTGCPHYS.)
+ *
  * @param   pDevIns         Pointer to the device instance the PCI device
  *                          belongs to.