Changeset 14244 in vbox for trunk/include

Timestamp:

Nov 17, 2008 10:31:26 AM (16 years ago)

Author:

vboxsync

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

39385

Message:

PGMR0DynMap: flushing macbook air code.

File:

• trunk/include/VBox/vm.h (modified) (7 diffs)

trunk/include/VBox/vm.h

@@ -98 +98 @@
     RTNATIVETHREAD          hNativeThread;
 
-    /** Align the next bit on a 64-byte boundary. */
+    /** Align the next bit on a 64-byte boundary.
+     *
+     * @remarks The aligments of the members that are larger than 48 bytes should be
+     *          64-byte for cache line reasons. structs containing small amounts of
+     *          data could be lumped together at the end with a < 64 byte padding
+     *          following it (to grow into and align the struct size).
+     *   */
     uint32_t                au32Alignment[HC_ARCH_BITS == 32 ? 9 : 6];
 
@@ -107 +113 @@
         struct CPUMCPU      s;
 #endif
-        char                padding[2048];      /* multiple of 32 */
+        char                padding[2048];      /* multiple of 64 */
     } cpum;
     /** VMM part. */
@@ -115 +121 @@
         struct VMMCPU       s;
 #endif
-        char                padding[32];        /* multiple of 32 */
+        char                padding[64];        /* multiple of 64 */
     } vmm;
 
@@ -124 +130 @@
         struct PGMCPU       s;
 #endif
-        char                padding[32];        /* multiple of 32 */
+        char                padding[192];        /* multiple of 64 */
     } pgm;
 
@@ -133 +139 @@
         struct HWACCMCPU    s;
 #endif
-        char                padding[1024];        /* multiple of 32 */
+        char                padding[1024];      /* multiple of 64 */
     } hwaccm;
 
@@ -142 +148 @@
         struct EMCPU        s;
 #endif
-        char                padding[32];        /* multiple of 32 */
+        char                padding[64];        /* multiple of 64 */
     } em;
 
@@ -151 +157 @@
         struct TMCPU        s;
 #endif
-        char                padding[32];        /* multiple of 32 */
+        char                padding[64];        /* multiple of 64 */
     } tm;
 } VMCPU;