Version 2:
pcbiosConstruct has now code updating the _DMI_ structure, but this also
needs updating the _SM_ structure.
_DMI_ checksum is only for the entry itself.
Index: VBox/Devices/PC/DevPcBios.cpp
===================================================================
--- VBox/Devices/PC/DevPcBios.cpp (revision 40732)
+++ VBox/Devices/PC/DevPcBios.cpp (working copy)
@@ -1272,12 +1272,24 @@
{
*(uint16_t*)&pThis->pu8PcBios[VBOX_DMI_TABLE_OFFSET + 0x06] =
cbDmiTables;
uint8_t u8Sum = 0;
- for (unsigned i = 0; i < pThis->cbPcBios; i++)
- if (i != VBOX_DMI_TABLE_OFFSET + 0x05)
- u8Sum += pThis->pu8PcBios[i];
+ for (unsigned i = 0; i < 0x0f; i++)
+ if (i != 0x05)
+ u8Sum += pThis->pu8PcBios[VBOX_DMI_TABLE_OFFSET + i];
pThis->pu8PcBios[VBOX_DMI_TABLE_OFFSET + 0x05] = -u8Sum;
}
+ if ( pThis->pu8PcBios[VBOX_DMI_TABLE_OFFSET - 0x10 + 0x00] == '_'
+ && pThis->pu8PcBios[VBOX_DMI_TABLE_OFFSET - 0x10 + 0x01] == 'S'
+ && pThis->pu8PcBios[VBOX_DMI_TABLE_OFFSET - 0x10 + 0x02] == 'M'
+ && pThis->pu8PcBios[VBOX_DMI_TABLE_OFFSET - 0x10 + 0x03] == '_')
+ {
+ uint8_t u8Sum = 0;
+ for (unsigned i = 0; i < 0x1f; i++)
+ if (i != 0x04)
+ u8Sum += pThis->pu8PcBios[VBOX_DMI_TABLE_OFFSET - 0x10 + i];
+ pThis->pu8PcBios[VBOX_DMI_TABLE_OFFSET - 0x10 + 0x04] = -u8Sum;
+ }
+
if (pThis->u8IOAPIC)
FwCommonPlantMpsTable(pDevIns, pThis->au8DMIPage + VBOX_DMI_TABLE_SIZE,
_4K - VBOX_DMI_TABLE_SIZE, pThis->cCpus);
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