Changeset 51367 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

May 23, 2014 7:45:35 AM (11 years ago)

Author:

vboxsync

Message:

VMM/GIM: Hyper-V provider, work-in-progress.

Location:

trunk/src/VBox/VMM/VMMAll

Files:

• GIMAll.cpp (modified) (2 diffs)
• GIMAllHv.cpp (modified) (3 diffs)

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

@@ -81 +81 @@
 VMM_INT_DECL(int) GIMReadMsr(PVMCPU pVCpu, uint32_t idMsr, PCCPUMMSRRANGE pRange, uint64_t *puValue)
 {
+    Assert(pVCpu);
     PVM pVM = pVCpu->CTX_SUFF(pVM);
     Assert(GIMIsEnabled(pVM));
@@ -109 +110 @@
 VMM_INT_DECL(int) GIMWriteMsr(PVMCPU pVCpu, uint32_t idMsr, PCCPUMMSRRANGE pRange, uint64_t uValue, uint64_t uRawValue)
 {
+    Assert(pVCpu);
     PVM pVM = pVCpu->CTX_SUFF(pVM);
     Assert(GIMIsEnabled(pVM));

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

@@ -23 +23 @@
 #include "GIMHvInternal.h"
 
-#include <iprt/err.h>
+#include <VBox/err.h>
+#include <VBox/vmm/tm.h>
+#include <VBox/vmm/vm.h>
 
 DECLEXPORT(int) GIMHvHypercall(PVMCPU pVCpu, PCPUMCTX pCtx)
@@ -33 +35 @@
 DECLEXPORT(int) GIMHvReadMsr(PVMCPU pVCpu, uint32_t idMsr, PCCPUMMSRRANGE pRange, uint64_t *puValue)
 {
-    return VINF_SUCCESS;
+    NOREF(pRange);
+    switch (idMsr)
+    {
+        case MSR_GIM_HV_TIME_REF_COUNT:
+        {
+            /* Hyper-V reports the time in 100ns units. */
+            uint64_t u64Tsc      = TMCpuTickGet(pVCpu);
+            uint64_t u64TscHz    = TMCpuTicksPerSecond(pVCpu->CTX_SUFF(pVM));
+            uint64_t u64Tsc100Ns = u64TscHz / UINT64_C(10000000); /* 100 ns */
+            *puValue = (u64Tsc / u64Tsc100Ns);
+            return VINF_SUCCESS;
+        }
+
+        case MSR_GIM_HV_VP_INDEX:
+            *puValue = pVCpu->idCpu;
+            return VINF_SUCCESS;
+
+        default:
+            break;
+    }
+
+    LogRel(("GIMHvReadMsr: Unknown/invalid RdMsr %#RX32 -> #GP(0)\n", idMsr));
+    return VERR_CPUM_RAISE_GP_0;
 }
 
@@ -39 +63 @@
 DECLEXPORT(int) GIMHvWriteMsr(PVMCPU pVCpu, uint32_t idMsr, PCCPUMMSRRANGE pRange, uint64_t uValue, uint64_t uRawValue)
 {
-    return VINF_SUCCESS;
+    LogRel(("GIMHvWriteMsr: Unknown/invalid WrMsr %#RX32 -> #GP(0)\n", idMsr));
+    return VERR_CPUM_RAISE_GP_0;
 }