Changeset 96925 in vbox for trunk/include/VBox/vmm

Timestamp:

Sep 28, 2022 8:39:43 PM (3 years ago)

Author:

vboxsync

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

153836

Message:

VMM,RuntimeR0: Flush the log buffer directly to the parent VMM if that's the only destination, and honor the unbuffered setting when that's the case. Setting VBOX_LOG_DEST='nofile vmm' & excluding 'buffered' from VBOX_LOG_FLAGS for the inner VBox instance will result in the logging to be intermixed w/o any buffering delays and no need to try correlate events between outer and inner vbox instances. bugref:10092

File:

• trunk/include/VBox/vmm/vmm.h (modified) (2 diffs)

trunk/include/VBox/vmm/vmm.h

@@ -454 +454 @@
  * Request package for VMMR0_DO_VMMR0_UPDATE_LOGGERS.
  *
- * In addition the u64Arg selects the logger sets: @c false for debug, @c true
- * for release.
+ * In addition the u64Arg is selects the logger and indicates whether we're only
+ * outputting to the parent VMM. See VMMR0UPDATELOGGER_F_XXX.
  */
 typedef struct VMMR0UPDATELOGGERSREQ
@@ -473 +473 @@
 /** Pointer to a VMMR0_DO_VMMR0_UPDATE_LOGGERS request. */
 typedef VMMR0UPDATELOGGERSREQ *PVMMR0UPDATELOGGERSREQ;
+
+/** @name VMMR0UPDATELOGGER_F_XXX - u64Arg definitions for VMMR0_DO_VMMR0_UPDATE_LOGGERS.
+ * @{ */
+/** Logger index mask. */
+#define VMMR0UPDATELOGGER_F_LOGGER_MASK         UINT64_C(0x0001)
+/** Only flush to the parent VMM's debug log, don't return to ring-3. */
+#define VMMR0UPDATELOGGER_F_TO_PARENT_VMM_DBG   UINT64_C(0x0002)
+/** Only flush to the parent VMM's debug log, don't return to ring-3. */
+#define VMMR0UPDATELOGGER_F_TO_PARENT_VMM_REL   UINT64_C(0x0004)
+/** Valid flag mask. */
+#define VMMR0UPDATELOGGER_F_VALID_MASK          UINT64_C(0x0007)
+/** @} */
 
 #if defined(IN_RING0) || defined(DOXYGEN_RUNNING)