Changeset 54999 in vbox

Timestamp:

Mar 29, 2015 3:04:02 PM (10 years ago)

Author:

vboxsync

Message:

Moved the XState to the end of the CPUMCTX structure, reducing the size of the three VMM modules by ~8KB in a win.amd6/debug build.

Location:

trunk

Files:

trunk/include/VBox/vmm/cpum.mac

-              r54898
+              r54999
 struc CPUMCTX
-    .XState             resb    XSTATE_SIZE
     .eax                resq    1
     .ecx                resq    1
 …
     .msrApicBase        resb    8
     .au32SizePadding    resb    24
+    .XState             resb    XSTATE_SIZE
 endstruc

-              r54898
+              r54999
 typedef struct CPUMCTX
+{
-    /** FPU state. (16-byte alignment)
-     * @todo This doesn't have to be in X86FXSTATE on CPUs without fxsr - we need a type for the
-     *       actual format or convert it (waste of time).  */
-    X86XSAVEAREA        XState;
     /** CPUMCTXCORE Part.
      * @{ */
 …
     /** Size padding. */
     uint32_t        au32SizePadding[6];
+    /** FPU state. (16-byte alignment)
+     * @todo This doesn't have to be in X86FXSTATE on CPUs without fxsr - we need a type for the
+     *       actual format or convert it (waste of time).  */
+    X86XSAVEAREA        XState;
 } CPUMCTX;
 #pragma pack()

-              r54898
+              r54999
     ; (Identical to the .Hyper chunk below.)
+    ;
-    alignb 64
-    .Guest.XState             resb    XSTATE_SIZE
     .Guest.eax                resq    1
     .Guest.ecx                resq    1
 …
     .Guest.msrKERNELGSBASE    resb    8
     .Guest.msrApicBase        resb    8
+    alignb 64
+    .Guest.XState             resb    XSTATE_SIZE
     alignb 64
 …
+    ;
     alignb 64
-    .Hyper.XState             resb    XSTATE_SIZE
     .Hyper.eax                resq    1
     .Hyper.ecx                resq    1
 …
     .Hyper.msrApicBase        resb    8
     alignb 64
+    .Hyper.XState             resb    XSTATE_SIZE
 %ifdef VBOX_WITH_CRASHDUMP_MAGIC

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