[coreboot] Patch merged into coreboot/master: a074023 Fix address of IDT in real-mode entry

gerrit at coreboot.org gerrit at coreboot.org
Fri Mar 16 19:34:44 CET 2012

the following patch was just integrated into master:
commit a07402308b2c0060a15b4d97cdcbe0370ef3af41
Author: Kyösti Mälkki <kyosti.malkki at gmail.com>
Date:   Mon Mar 5 09:25:12 2012 +0200

    Fix address of IDT in real-mode entry
    In a case of CS & 0x0fff != 0x0, lidt memory operand does not point
    to nullidt, this can raise an exception and shutdown the CPU.
    When an AP CPU receives 8-bit Start-Up IPI vector yzH, it starts
    execute at physical address 000yz000H. Seems this translates to
    either yz00:0000 or y000:z000 (CS:IP), depending of the CPU model.
    With the change entry16.inc is relocatable as the commentary suggests
    and can be used as ap_sipi_vector on SMP systems.
    Change-Id: I885a2888179700ba6e2b11d4f2d6a64ddea4c2dc
    Signed-off-by: Kyösti Mälkki <kyosti.malkki at gmail.com>

Reviewed-By: Patrick Georgi <patrick at georgi-clan.de> at Fri Mar 16 19:32:41 2012, giving +2
See http://review.coreboot.org/707 for details.


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