Changeset 78712 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

May 24, 2019 8:34:13 AM (6 years ago)

Author:

vboxsync

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

130790

Message:

VMM/EM: Nested VMX: bugref:9180 Removed unused code, EMInterpret[Monitor|Mwait].

File:

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

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

@@ -1377 +1377 @@
 
 
-/**
- * MWAIT Emulation.
- */
-VMM_INT_DECL(VBOXSTRICTRC) EMInterpretMWait(PVM pVM, PVMCPU pVCpu, PCPUMCTXCORE pRegFrame)
-{
-    Assert(pRegFrame == CPUMGetGuestCtxCore(pVCpu));
-    uint32_t u32Dummy, u32ExtFeatures, cpl, u32MWaitFeatures;
-    NOREF(pVM);
-
-    /* Get the current privilege level. */
-    cpl = CPUMGetGuestCPL(pVCpu);
-    if (cpl != 0)
-        return VERR_EM_INTERPRETER; /* supervisor only */
-
-    CPUMGetGuestCpuId(pVCpu, 1, 0, &u32Dummy, &u32Dummy, &u32ExtFeatures, &u32Dummy);
-    if (!(u32ExtFeatures & X86_CPUID_FEATURE_ECX_MONITOR))
-        return VERR_EM_INTERPRETER; /* not supported */
-
-    /*
-     * CPUID.05H.ECX[0] defines support for power management extensions (eax)
-     * CPUID.05H.ECX[1] defines support for interrupts as break events for mwait even when IF=0
-     */
-    CPUMGetGuestCpuId(pVCpu, 5, 0, &u32Dummy, &u32Dummy, &u32MWaitFeatures, &u32Dummy);
-    if (pRegFrame->ecx > 1)
-    {
-        Log(("EMInterpretMWait: unexpected ecx value %x -> recompiler\n", pRegFrame->ecx));
-        return VERR_EM_INTERPRETER; /* illegal value. */
-    }
-
-    if (pRegFrame->ecx && !(u32MWaitFeatures & X86_CPUID_MWAIT_ECX_BREAKIRQIF0))
-    {
-        Log(("EMInterpretMWait: unsupported X86_CPUID_MWAIT_ECX_BREAKIRQIF0 -> recompiler\n"));
-        return VERR_EM_INTERPRETER; /* illegal value. */
-    }
-
-    return EMMonitorWaitPerform(pVCpu, pRegFrame->rax, pRegFrame->rcx);
-}
-
-
-/**
- * MONITOR Emulation.
- */
-VMM_INT_DECL(int) EMInterpretMonitor(PVM pVM, PVMCPU pVCpu, PCPUMCTXCORE pRegFrame)
-{
-    uint32_t u32Dummy, u32ExtFeatures, cpl;
-    Assert(pRegFrame == CPUMGetGuestCtxCore(pVCpu));
-    NOREF(pVM);
-
-    if (pRegFrame->ecx != 0)
-    {
-        Log(("emInterpretMonitor: unexpected ecx=%x -> recompiler!!\n", pRegFrame->ecx));
-        return VERR_EM_INTERPRETER; /* illegal value. */
-    }
-
-    /* Get the current privilege level. */
-    cpl = CPUMGetGuestCPL(pVCpu);
-    if (cpl != 0)
-        return VERR_EM_INTERPRETER; /* supervisor only */
-
-    CPUMGetGuestCpuId(pVCpu, 1, 0, &u32Dummy, &u32Dummy, &u32ExtFeatures, &u32Dummy);
-    if (!(u32ExtFeatures & X86_CPUID_FEATURE_ECX_MONITOR))
-        return VERR_EM_INTERPRETER; /* not supported */
-
-    EMMonitorWaitPrepare(pVCpu, pRegFrame->rax, pRegFrame->rcx, pRegFrame->rdx, NIL_RTGCPHYS);
-    return VINF_SUCCESS;
-}
-
-
 /* VT-x only: */