Changeset 70866 in vbox for trunk/src

Timestamp:

Feb 5, 2018 1:44:39 PM (7 years ago)

Author:

vboxsync

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

120692

Message:

DevPcArch: Reserving the last 64K below 1M upsets OS X (EFI) guests. Normally the BIOS is there anyway.

File:

• trunk/src/VBox/Devices/PC/DevPcArch.cpp (modified) (2 diffs)

trunk/src/VBox/Devices/PC/DevPcArch.cpp

@@ -212 +212 @@
 /**
  * @interface_method_impl{PDMDEVREG,pfnInitComplete,
- *      Turn RAM pages between 0xa0000 and 0xfffff into reserved memory.}
+ *      Turn RAM pages between 0xa0000 and 0xeffff into reserved memory.}
+ * NB: At least some OS X versions (El Capitan, Sierra) get upset and panic
+ * early in the boot when we make memory between 0x0f0000-0x100000 reserved
+ * and non-writable.
  */
 static DECLCALLBACK(int) pcarchInitComplete(PPDMDEVINS pDevIns)
@@ -218 +221 @@
     PVM             pVM       = PDMDevHlpGetVM(pDevIns);
     int             iRegion   = 0;
-    RTGCPHYS const  GCPhysEnd = 0x100000;
+    RTGCPHYS const  GCPhysEnd = 0x0f0000;
     RTGCPHYS        GCPhysCur = 0x0a0000;
     do