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/* $OpenBSD: machdep.c,v 1.1 2019/05/10 21:20:42 mlarkin Exp $ */
/*
* Copyright (c) 2004 Tom Cosgrove
* Copyright (c) 1997-1999 Michael Shalayeff
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "libsa.h"
#include "biosdev.h"
#include <machine/apmvar.h>
#include <machine/biosvar.h>
#include <machine/specialreg.h>
#include <machine/vmmvar.h>
#include "efiboot.h"
volatile struct BIOS_regs BIOS_regs;
#if defined(DEBUG)
#define CKPT(c) (*(u_int16_t*)0xb8148 = 0x4700 + (c))
#else
#define CKPT(c) /* c */
#endif
const char *vmm_hv_signature = VMM_HV_SIGNATURE;
void
machdep(void)
{
int i, j, vmm = 0;
struct i386_boot_probes *pr;
uint32_t dummy, ebx, ecx, edx;
dev_t dev;
/*
* The list of probe routines is now in conf.c.
*/
for (i = 0; i < nibprobes; i++) {
pr = &probe_list[i];
if (pr != NULL) {
printf("%s:", pr->name);
for (j = 0; j < pr->count; j++) {
(*(pr->probes)[j])();
}
printf("\n");
}
}
CPUID(0x1, dummy, dummy, ecx, dummy);
if (ecx & CPUIDECX_HV) {
CPUID(0x40000000, dummy, ebx, ecx, edx);
if (memcmp(&ebx, &vmm_hv_signature[0], sizeof(uint32_t)) == 0 &&
memcmp(&ecx, &vmm_hv_signature[4], sizeof(uint32_t)) == 0 &&
memcmp(&edx, &vmm_hv_signature[8], sizeof(uint32_t)) == 0)
vmm = 1;
}
/* Set console to com0/115200 by default in vmm */
if (vmm) {
dev = ttydev("com0");
cnspeed(dev, 115200);
cnset(dev);
}
}
int
check_skip_conf(void)
{
/* Return non-zero (skip boot.conf) if Control "shift" key down */
return (efi_cons_getshifts(0) & 0x04);
}
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