Changeset 74204 in vbox

Timestamp:

Sep 12, 2018 5:18:25 AM (7 years ago)

Author:

vboxsync

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

124981

Message:

VMM/EM: Added EMMonitorWaitClear to clear address-range monitoring for MONITOR/MWAIT, for upcoming use with nested VMX.

Location:

trunk

Files:

• include/VBox/vmm/em.h (modified) (1 diff)
• src/VBox/VMM/VMMAll/EMAll.cpp (modified) (1 diff)

trunk/include/VBox/vmm/em.h ¶

@@ -183 +183 @@
 VMM_INT_DECL(bool)              EMMonitorWaitShouldContinue(PVMCPU pVCpu, PCPUMCTX pCtx);
 VMM_INT_DECL(int)               EMMonitorWaitPrepare(PVMCPU pVCpu, uint64_t rax, uint64_t rcx, uint64_t rdx, RTGCPHYS GCPhys);
+VMM_INT_DECL(void)              EMMonitorWaitClear(PVMCPU pVCpu);
 VMM_INT_DECL(bool)              EMMonitorIsArmed(PVMCPU pVCpu);
 VMM_INT_DECL(int)               EMMonitorWaitPerform(PVMCPU pVCpu, uint64_t rax, uint64_t rcx);

trunk/src/VBox/VMM/VMMAll/EMAll.cpp ¶

@@ -189 +189 @@
 }
 
+
+/**
+ * Clears any address-range monitoring that is active.
+ *
+ * @param   pVCpu   The cross context virtual CPU structure of the calling EMT.
+ */
+VMM_INT_DECL(void) EMMonitorWaitClear(PVMCPU pVCpu)
+{
+    LogFlowFunc(("Clearing MWAIT\n"));
+    pVCpu->em.s.MWait.fWait &= ~(EMMWAIT_FLAG_ACTIVE | EMMWAIT_FLAG_BREAKIRQIF0);
+}