Changeset 1252 in vbox

Timestamp:

Mar 6, 2007 9:13:53 AM (18 years ago)

Author:

vboxsync

Message:

Setup cr0 and cr4

File:

• trunk/src/VBox/VMM/VMM.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMM.cpp

@@ -2978 +2978 @@
         SYNC_SEL(pHyperCtx, tr);
 
+        pHyperCtx->cr0 = X86_CR0_PE | X86_CR0_WP | X86_CR0_PG | X86_CR0_TS | X86_CR0_ET | X86_CR0_NE | X86_CR0_MP;
+        pHyperCtx->cr4 = X86_CR4_PGE | X86_CR4_OSFSXR | X86_CR4_OSXMMEEXCPT;
+
+        PGMMODE enmShadowMode = PGMGetShadowMode(pVM);
+        switch(enmShadowMode)
+        {
+        case PGMMODE_REAL:
+        case PGMMODE_PROTECTED:     /* Protected mode, no paging. */
+        case PGMMODE_AMD64:         /* 64-bit AMD paging (long mode). */
+        case PGMMODE_AMD64_NX:      /* 64-bit AMD paging (long mode) with NX enabled. */
+        default:                   /* shut up gcc */
+            AssertFailed();
+            return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
+
+        case PGMMODE_32_BIT:        /* 32-bit paging. */
+            break;
+
+        case PGMMODE_PAE:           /* PAE paging. */
+        case PGMMODE_PAE_NX:        /* PAE paging with NX enabled. */
+            pHyperCtx->cr4 |= X86_CR4_PAE;
+            break;
+        }
+
+
         /*
          * Profile switching.