Changeset 23758 in vbox

Timestamp:

Oct 14, 2009 12:21:21 PM (15 years ago)

Author:

vboxsync

Message:

Skeleton code for synthetic cpu handling.

Location:

trunk/src/VBox/VMM

Files:

• CPUM.cpp (modified) (2 diffs)
• CPUMInternal.h (modified) (1 diff)
• CPUMInternal.mac (modified) (1 diff)

trunk/src/VBox/VMM/CPUM.cpp

@@ -297 +297 @@
                  &pCPUM->aGuestCpuIdCentaur[i].eax, &pCPUM->aGuestCpuIdCentaur[i].ebx,
                  &pCPUM->aGuestCpuIdCentaur[i].ecx, &pCPUM->aGuestCpuIdCentaur[i].edx);
-
 
     /*
@@ -397 +396 @@
                                        //| X86_CPUID_AMD_FEATURE_ECX_WDT
                                        | 0;
+
+    CFGMR3QueryBoolDef(CFGMR3GetChild(CFGMR3GetRoot(pVM), "CPUM"), "SyntheticCpu", &pCPUM->fSyntheticCpu, false);
+    if (pCPUM->fSyntheticCpu)
+    {
+        /* AMD only; shared feature bits are set dynamically. */
+        pCPUM->aGuestCpuIdExt[1].edx = 0;
+        pCPUM->aGuestCpuIdExt[1].ecx = 0;
+
+        /** @todo fill in the rest of the cpu leaves. */
+    }
 
     /*

trunk/src/VBox/VMM/CPUMInternal.h

@@ -298 +298 @@
     /** Have we entered rawmode? */
     bool                    fRawEntered;
-    uint8_t                 abPadding[3 + (HC_ARCH_BITS == 64) * 4];
+    /** Synthetic CPU type? */
+    bool                    fSyntheticCpu;
+    uint8_t                 abPadding[2 + (HC_ARCH_BITS == 64) * 4];
 
     /** The standard set of CpuId leafs. */

trunk/src/VBox/VMM/CPUMInternal.mac

@@ -71 +71 @@
     ; entered rawmode?
     .fRawEntered          resb    1
+    .fSyntheticCpu        resb    1
 %if RTHCPTR_CB == 8
-    .abPadding            resb    7
+    .abPadding            resb    6
 %else
-    .abPadding            resb    3
+    .abPadding            resb    2
 %endif