biosint.h

Timestamp:

Oct 14, 2011 1:48:03 PM (13 years ago)

Author:

vboxsync

Message:

DMA recompiler bug workaround for floppy, too.

File:

trunk/src/VBox/Devices/PC/BIOS-new/biosint.h

-              r38833
+              r38997
 #define BX_PANIC(...)   bios_printf(BIOS_PRINTF_DEBHALT, __VA_ARGS__)
+/* Because we don't tell the recompiler when guest physical memory
+ * is written, it can incorrectly cache guest code overwritten by
+ * DMA (bus master or not). We just re-write the memory block to flush
+ * any of its caches. This is not exactly efficient, but works!
+ */
+#define DMA_WORKAROUND      1
 /* Random hardware-related definitions. */

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