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/*
* Implementation of stub functions for calls to the TCG BIOS
* extension in 32bit memory area.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Copyright (C) IBM Corporation, 2006
*
* Author: Stefan Berger <stefanb@us.ibm.com>
*/
/*******************************************************************
Support for TCPA ACPI logging
******************************************************************/
ASM_START
MACRO POST_MEASURE
push word #0x000f
push #?2
push word #0x000f
push #?1
call _tcpa_measure_post
add sp, #8
MEND
ASM_END
void
tcpa_do_measure_POSTs()
{
ASM_START
POST_MEASURE(post, nmi)
POST_MEASURE(floppy_drive_post, hard_drive_post)
POST_MEASURE(hard_drive_post, ebda_post)
POST_MEASURE(ebda_post, eoi_jmp_post)
POST_MEASURE(eoi_jmp_post, timer_tick_post)
POST_MEASURE(timer_tick_post, int76_handler)
ret
ASM_END
}
/*
* C-dispatcher for the TCG BIOS functions
*/
#define TCG_MAGIC 0x41504354L
void
int1a_function32(regs, ES, DS, FLAGS)
pushad_regs_t regs;
Bit16u ES, DS, FLAGS;
{
Bit16u rc;
BX_DEBUG_INT1A("int1a_32: AX=%04x\n", regs.u.r16.ax);
switch (regs.u.r8.ah) {
case 0xbb:
/*
* all functions except for TCG_StatusCheck need to have the
* TCG_MAGIC in 'ebx'.
*/
if (regs.u.r8.al != 0 &&
regs.u.r32.ebx != TCG_MAGIC) {
SET_CF();
return;
}
switch(regs.u.r8.al) {
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0x06:
case 0x07:
TCGInterruptHandler(((Bit32u)get_SS() << 4) + (Bit32u)®s,
ES, DS,
((Bit32u)get_SS() << 4) + (Bit32u)&FLAGS);
break;
default:
SET_CF();
}
break;
default:
SET_CF();
break;
}
BX_DEBUG_INT1A("int1a_32: FLAGS=%04x\n", FLAGS);
}
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