Changeset 50162 in vbox

Timestamp:

Jan 22, 2014 4:14:15 PM (11 years ago)

Author:

vboxsync

Message:

CPUM.cpp: Added /CPUM/SSE4.1 and /CPUM/SSE4.2 configuration overrides for enabling SSE 4.1 and 4.2 when supported by the host CPU. This will later be made default.

File:

• trunk/src/VBox/VMM/VMMR3/CPUM.cpp (modified) (3 diffs)

trunk/src/VBox/VMM/VMMR3/CPUM.cpp

@@ -1104 +1104 @@
     AssertLogRelRCReturn(rc, rc);
 
+    /** @cfgm{/CPUM/SSE4.1, boolean, false}
+     * Expose SSE4.1 to the guest if available.
+     */
+    bool fSse41;
+    rc = CFGMR3QueryBoolDef(pCpumCfg, "SSE4.1", &fSse41, false);
+    AssertLogRelRCReturn(rc, rc);
+
+    /** @cfgm{/CPUM/SSE4.2, boolean, false}
+     * Expose SSE4.2 to the guest if available.
+     */
+    bool fSse42;
+    rc = CFGMR3QueryBoolDef(pCpumCfg, "SSE4.2", &fSse42, false);
+    AssertLogRelRCReturn(rc, rc);
+
     /** @cfgm{/CPUM/NT4LeafLimit, boolean, false}
      * Limit the number of standard CPUID leaves to 0..3 to prevent NT4 from
@@ -1222 +1236 @@
                                   /* ECX Bit 14 - xTPR Update Control. Processor supports changing IA32_MISC_ENABLES[bit 23]. */
                                   //| X86_CPUID_FEATURE_ECX_TPRUPDATE
+                                  | (fSse41 ? X86_CPUID_FEATURE_ECX_SSE4_1 : 0)
+                                  | (fSse42 ? X86_CPUID_FEATURE_ECX_SSE4_2 : 0)
                                   /* ECX Bit 21 - x2APIC support - not yet. */
                                   // | X86_CPUID_FEATURE_ECX_X2APIC
@@ -1232 +1248 @@
         PORTABLE_DISABLE_FEATURE_BIT(1, pStdFeatureLeaf->uEcx, SSSE3, X86_CPUID_FEATURE_ECX_SSSE3);
         PORTABLE_DISABLE_FEATURE_BIT(1, pStdFeatureLeaf->uEcx, SSE3,  X86_CPUID_FEATURE_ECX_SSE3);
+        PORTABLE_DISABLE_FEATURE_BIT(1, pStdFeatureLeaf->uEcx, SSE4_1, X86_CPUID_FEATURE_ECX_SSE4_1);
+        PORTABLE_DISABLE_FEATURE_BIT(1, pStdFeatureLeaf->uEcx, SSE4_2, X86_CPUID_FEATURE_ECX_SSE4_2);
         PORTABLE_DISABLE_FEATURE_BIT(1, pStdFeatureLeaf->uEcx, CX16,  X86_CPUID_FEATURE_ECX_CX16);
         PORTABLE_DISABLE_FEATURE_BIT(2, pStdFeatureLeaf->uEdx, SSE2,  X86_CPUID_FEATURE_EDX_SSE2);