Changeset 26066 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Jan 27, 2010 12:59:32 PM (15 years ago)

Author:

vboxsync

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

56991

Message:

Guest SMP: force all VCPUs to go back to ring 3 when a pgm pool flush is pending. Not doing so might cause trouble on a loaded host.

File:

• trunk/src/VBox/VMM/VMMAll/PGMAllPool.cpp (modified) (1 diff)

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

@@ -2564 +2564 @@
         LogFlow(("SyncCR3: PGM_SYNC_CLEAR_PGM_POOL is set -> VINF_PGM_SYNC_CR3\n"));
         VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3); /** @todo no need to do global sync, right? */
+
+        /* Make sure all other VCPUs return to ring 3. */
+        if (pVM->cCpus > 1)
+        {
+            VM_FF_SET(pVM, VM_FF_PGM_POOL_FLUSH_PENDING);
+            PGM_INVL_ALL_VCPU_TLBS(pVM);
+        }
         return VINF_PGM_SYNC_CR3;
     }