diff options
Diffstat (limited to 'sys/arch/amd64/stand/efiboot/machdep.c')
| -rw-r--r-- | sys/arch/amd64/stand/efiboot/machdep.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/sys/arch/amd64/stand/efiboot/machdep.c b/sys/arch/amd64/stand/efiboot/machdep.c new file mode 100644 index 00000000000..d994a0f4d74 --- /dev/null +++ b/sys/arch/amd64/stand/efiboot/machdep.c @@ -0,0 +1,95 @@ +/* $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); +} |