Changeset 37427 in vbox for trunk/src/VBox/Devices/PC/BIOS/scsi.c

Timestamp:

Jun 13, 2011 5:45:37 PM (14 years ago)

Author:

vboxsync

Message:

BIOS/AHCI: Updates for the driver, grub can boot from a SATA disk now

File:

• trunk/src/VBox/Devices/PC/BIOS/scsi.c (modified) (1 diff)

trunk/src/VBox/Devices/PC/BIOS/scsi.c

@@ -443 +443 @@
                 write_byte(ebda_seg, &EbdaData->ata.hdcount, hdcount);
 
+                /* Update hdcount in the BDA. */
+                hdcount = read_byte(0x40, 0x75);
+                hdcount++;
+                write_byte(0x40, 0x75, hdcount);
+
                 hdcount_scsi++;
                 write_byte(ebda_seg, &EbdaData->scsi.hdcount, hdcount_scsi);