Changeset 75646 in vbox for trunk/include/VBox/vmm

Timestamp:

Nov 21, 2018 3:38:10 PM (6 years ago)

Author:

vboxsync

Message:

VMM: HLT/MWAIT optimizations for busy guests: don't go back to ring-3 just to call GVMMR0SchedHalt(), do the first call in ring-0. This saves a reduces interrupt latency for some workloads. bugref:9172

Location:

trunk/include/VBox/vmm

Files:

• cpum.h (modified) (1 diff)
• em.h (modified) (2 diffs)
• gvmm.h (modified) (1 diff)
• vm.h (modified) (2 diffs)
• vm.mac (modified) (1 diff)
• vmm.h (modified) (1 diff)

trunk/include/VBox/vmm/cpum.h

@@ -2129 +2129 @@
 VMMDECL(bool)           CPUMIsPatMsrValid(uint64_t uValue);
 
+/** Guest CPU interruptibility level, see CPUMGetGuestInterruptibility(). */
+typedef enum CPUMINTERRUPTIBILITY
+{
+    CPUMINTERRUPTIBILITY_INVALID = 0,
+    CPUMINTERRUPTIBILITY_UNRESTRAINED,
+    CPUMINTERRUPTIBILITY_INT_INHIBITED,
+    CPUMINTERRUPTIBILITY_INT_DISABLED,
+    CPUMINTERRUPTIBILITY_NMI_INHIBIT,
+    CPUMINTERRUPTIBILITY_GLOBAL_INHIBIT,
+    CPUMINTERRUPTIBILITY_END,
+    CPUMINTERRUPTIBILITY_32BIT_HACK = 0x7fffffff
+} CPUMINTERRUPTIBILITY;
+
+/**
+ * Calculates the interruptiblity of the guest.
+ *
+ * @returns Interruptibility level.
+ * @param   pVCpu               The cross context virtual CPU structure.
+ */
+VMM_INT_DECL(CPUMINTERRUPTIBILITY) CPUMGetGuestInterruptibility(PVMCPU pVCpu);
+
+
 /** @name Typical scalable bus frequency values.
  * @{ */

trunk/include/VBox/vmm/em.h

@@ -178 +178 @@
 VMMDECL(void)                   EMSetInhibitInterruptsPC(PVMCPU pVCpu, RTGCUINTPTR PC);
 VMMDECL(RTGCUINTPTR)            EMGetInhibitInterruptsPC(PVMCPU pVCpu);
+VMMDECL(bool)                   EMIsInhibitInterruptsActive(PVMCPU pVCpu);
 VMMDECL(void)                   EMSetHypercallInstructionsEnabled(PVMCPU pVCpu, bool fEnabled);
 VMMDECL(bool)                   EMAreHypercallInstructionsEnabled(PVMCPU pVCpu);
@@ -185 +186 @@
 VMM_INT_DECL(void)              EMMonitorWaitClear(PVMCPU pVCpu);
 VMM_INT_DECL(bool)              EMMonitorIsArmed(PVMCPU pVCpu);
+VMM_INT_DECL(unsigned)          EMMonitorWaitIsActive(PVMCPU pVCpu);
 VMM_INT_DECL(int)               EMMonitorWaitPerform(PVMCPU pVCpu, uint64_t rax, uint64_t rcx);
 VMM_INT_DECL(int)               EMUnhaltAndWakeUp(PVM pVM, PVMCPU pVCpuDst);

trunk/include/VBox/vmm/gvmm.h

@@ -172 +172 @@
 GVMMR0DECL(PVM)     GVMMR0GetVMByEMT(RTNATIVETHREAD hEMT);
 GVMMR0DECL(PGVMCPU) GVMMR0GetGVCpuByEMT(RTNATIVETHREAD hEMT);
-GVMMR0DECL(int)     GVMMR0SchedHalt(PGVM pGVM, PVM pVM, VMCPUID idCpu, uint64_t u64ExpireGipTime);
+GVMMR0DECL(int)     GVMMR0SchedHalt(PGVM pGVM, PVM pVM, PGVMCPU pCurGVCpu, uint64_t u64ExpireGipTime);
+GVMMR0DECL(int)     GVMMR0SchedHaltReq(PGVM pGVM, PVM pVM, VMCPUID idCpu, uint64_t u64ExpireGipTime);
 GVMMR0DECL(int)     GVMMR0SchedWakeUp(PGVM pGVM, PVM pVM, VMCPUID idCpu);
 GVMMR0DECL(int)     GVMMR0SchedWakeUpEx(PGVM pGVM, PVM pVM, VMCPUID idCpu, bool fTakeUsedLock);

trunk/include/VBox/vmm/vm.h

@@ -211 +211 @@
         struct VMMCPU       s;
 #endif
-        uint8_t             padding[768];       /* multiple of 64 */
+        uint8_t             padding[896];       /* multiple of 64 */
     } vmm;
 
@@ -273 +273 @@
 
     /** Align the following members on page boundary. */
-    uint8_t                 abAlignment2[2808];
+    uint8_t                 abAlignment2[2680];
 
     /** PGM part. */

trunk/include/VBox/vmm/vm.mac

@@ -65 +65 @@
     .trpm                   resb 128
     .tm                     resb 384
-    .vmm                    resb 768
+    .vmm                    resb 896
     .pdm                    resb 256
     .iom                    resb 512

trunk/include/VBox/vmm/vmm.h

@@ -578 +578 @@
 /** @} */
 VMMR3_INT_DECL(int)     VMMR3EmtRendezvousFF(PVM pVM, PVMCPU pVCpu);
+VMMR3_INT_DECL(void)    VMMR3SetMayHaltInRing0(PVMCPU pVCpu, bool fMayHaltInRing0, uint32_t cNsSpinBlockThreshold);
 VMMR3_INT_DECL(int)     VMMR3ReadR0Stack(PVM pVM, VMCPUID idCpu, RTHCUINTPTR R0Addr, void *pvBuf, size_t cbRead);
 VMMR3_INT_DECL(void)    VMMR3InitR0StackUnwindState(PUVM pUVM, VMCPUID idCpu, PRTDBGUNWINDSTATE pState);