Changeset 65843 in vbox for trunk/src/VBox/Main/src-client

Timestamp:

Feb 22, 2017 7:23:56 PM (8 years ago)

Author:

vboxsync

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

113612

Message:

Main/ACPI: default size for the 64-bit prefetch root bus resource is 64GB and it's only enabled either for 64-bit guests or PAE is enabled

File:

• trunk/src/VBox/Main/src-client/ConsoleImpl2.cpp (modified) (1 diff)

trunk/src/VBox/Main/src-client/ConsoleImpl2.cpp

@@ -3228 +3228 @@
                 InsertConfigInteger(pCfg,  "McfgBase",   uMcfgBase);
                 InsertConfigInteger(pCfg,  "McfgLength", cbMcfgLength);
-                InsertConfigInteger(pCfg,  "PciPref64Enabled", 1);
+                /* 64-bit prefetch window root resource:
+                 * Only for ICH9 and if PAE or Long Mode is enabled */
+                if (fEnablePAE || fIsGuest64Bit)
+                    InsertConfigInteger(pCfg,  "PciPref64Enabled", 1);
             }
             InsertConfigInteger(pCfg,  "HostBusPciAddress", uHbcPCIAddress);