Changeset 61393 in vbox for trunk/src/VBox/ValidationKit/bootsectors

Timestamp:

Jun 2, 2016 12:48:41 AM (9 years ago)

Author:

vboxsync

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

107707

Message:

bs3kit: raw-mode.

Location:

trunk/src/VBox/ValidationKit/bootsectors/bs3kit

Files:

• bs3-cmn-PagingInitRootForPAE.c (modified) (1 diff)
• bs3-cmn-PagingInitRootForPP.c (modified) (1 diff)

trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PagingInitRootForPAE.c

@@ -73 +73 @@
             pPdPtr->a[3].u = pPdPtr->a[2].u + _4K;
 
+            /* Free up 8 consequtive entries for raw-mode hypervisor code. */
+            if (1) /** @todo detect raw-mode and only do this then. */
+                for (i = 0; i < 8; i++)
+                    paPgDirs->a[i + (UINT32_C(0xc0000000) >> X86_PD_PAE_SHIFT)].b.u1Present = 0;
+
             /* Set the global root pointer and we're done. */
             BS3_XPTR_SET(X86PDPT, XPtrPdPtr, pPdPtr);

trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PagingInitRootForPP.c

@@ -97 +97 @@
                 pPgDir->a[i].u |= X86_PDE4M_P | X86_PDE4M_RW | X86_PDE4M_US | X86_PDE4M_PS | X86_PDE4M_A | X86_PDE4M_D;
             }
+
+            /* Free up 4 consequtive entries for raw-mode hypervisor code. */
+            if (1) /** @todo detect raw-mode and only do this then. */
+                for (i = 0; i < 4; i++)
+                    pPgDir->a[i + (UINT32_C(0xc0000000) >> X86_PD_SHIFT)].b.u1Present = 0;
         }
         else