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- Port x86emu to FreeBSD.

Browse Source 
- Connect x86emu to build.

Tested with:	make universe
Submitted by:	swell.k at gmail com
This commit is contained in:
Xin LI 2009-09-09 05:53:26 +00:00
parent f66de33a6a
commit efba048eb5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=197019
9 changed files with 64 additions and 24 deletions
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3
sys/conf/NOTES
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@ -2756,3 +2756,6 @@ options AAC_DEBUG # Debugging levels:
##options BKTR_ALLOC_PAGES=(217*4+1)
options BROOKTREE_ALLOC_PAGES=(217*4+1)
options MAXFILES=999
# x86 real mode emulator
options X86EMU

2
sys/conf/files
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@ -2826,4 +2826,6 @@ dev/xen/netfront/netfront.c optional xen | xenhvm
dev/xen/xenpci/xenpci.c optional xenpci
dev/xen/xenpci/evtchn.c optional xenpci
dev/xen/xenpci/machine_reboot.c optional xenpci
contrib/x86emu/x86emu.c optional x86emu
contrib/x86emu/x86emu_util.c optional x86emu

2
sys/conf/options
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@ -836,3 +836,5 @@ SND_FEEDER_FULL_MULTIFORMAT opt_snd.h
SND_FEEDER_RATE_HP opt_snd.h
SND_PCM_64 opt_snd.h
SND_OLDSTEREO opt_snd.h
X86EMU

49
sys/contrib/x86emu/x86emu.c
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@ -1,5 +1,6 @@
/* $OpenBSD: x86emu.c,v 1.4 2009/06/18 14:19:21 pirofti Exp $ */
/* $NetBSD: x86emu.c,v 1.7 2009/02/03 19:26:29 joerg Exp $ */
/* $FreeBSD$ */
/*
*
@ -32,8 +33,12 @@
*
*/
#include <dev/x86emu/x86emu.h>
#include <dev/x86emu/x86emu_regs.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <contrib/x86emu/x86emu.h>
#include <contrib/x86emu/x86emu_regs.h>
static void x86emu_intr_raise (struct x86emu *, uint8_t type);
@ -45,7 +50,7 @@ static uint8_t fetch_byte_imm (struct x86emu *);
static uint16_t fetch_word_imm (struct x86emu *);
static uint32_t fetch_long_imm (struct x86emu *);
static uint8_t fetch_data_byte (struct x86emu *, uint32_t offset);
static uint8_t fetch_byte (struct x86emu *, uint segment, uint32_t offset);
static uint8_t fetch_byte (struct x86emu *, u_int segment, uint32_t offset);
static uint16_t fetch_data_word (struct x86emu *, uint32_t offset);
static uint16_t fetch_word (struct x86emu *, uint32_t segment, uint32_t offset);
static uint32_t fetch_data_long (struct x86emu *, uint32_t offset);
@ -227,13 +232,8 @@ x86emu_exec(struct x86emu *emu)
{
emu->x86.intr = 0;
#ifdef _KERNEL
if (setjmp(&emu->exec_state))
return;
#else
if (setjmp(emu->exec_state))
return;
#endif
for (;;) {
if (emu->x86.intr) {
@ -282,11 +282,7 @@ x86emu_exec_intr(struct x86emu *emu, uint8_t intr)
void
x86emu_halt_sys(struct x86emu *emu)
{
#ifdef _KERNEL
longjmp(&emu->exec_state);
#else
longjmp(emu->exec_state, 1);
#endif
}
/*
@ -8339,3 +8335,32 @@ pop_long(struct x86emu *emu)
emu->x86.R_SP += 4;
return res;
}
static int
x86emu_modevent(module_t mod __unused, int type, void *data __unused)
{
int err = 0;
switch (type) {
case MOD_LOAD:
break;
case MOD_UNLOAD:
break;
default:
err = ENOTSUP;
break;
}
return (err);
}
static moduledata_t x86emu_mod = {
"x86emu",
x86emu_modevent,
NULL,
};
DECLARE_MODULE(x86emu, x86emu_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
MODULE_VERSION(x86emu, 1);

8
sys/contrib/x86emu/x86emu.h
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@ -1,5 +1,6 @@
/* $NetBSD: x86emu.h,v 1.1 2007/12/01 20:14:10 joerg Exp $ */
/* $OpenBSD: x86emu.h,v 1.3 2009/06/06 03:45:05 matthieu Exp $ */
/* $FreeBSD$ */
/****************************************************************************
*
@ -40,6 +41,7 @@
#ifdef _KERNEL
#include <sys/systm.h>
#include <machine/setjmp.h>
#else
#include <setjmp.h>
#endif
@ -140,11 +142,7 @@ struct x86emu {
void *sys_private;
struct x86emu_regs x86;
#ifdef _KERNEL
label_t exec_state;
#else
jmp_buf exec_state;
#endif
uint64_t cur_cycles;
@ -179,7 +177,7 @@ void x86emu_init_default(struct x86emu *);
void x86emu_exec(struct x86emu *);
void x86emu_exec_call(struct x86emu *, uint16_t, uint16_t);
void x86emu_exec_intr(struct x86emu *, uint8_t);
void x86emu_halt_sys(struct x86emu *) __dead;
void x86emu_halt_sys(struct x86emu *) __dead2;
__END_DECLS

13
sys/contrib/x86emu/x86emu_util.c
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@ -1,5 +1,6 @@
/* $OpenBSD: x86emu_util.c,v 1.5 2009/06/18 14:19:21 pirofti Exp $ */
/* $NetBSD: x86emu_util.c,v 1.2 2007/12/04 17:32:22 joerg Exp $ */
/* $FreeBSD$ */
/*
*
@ -35,8 +36,8 @@
#include <sys/param.h>
#include <sys/endian.h>
#include <dev/x86emu/x86emu.h>
#include <dev/x86emu/x86emu_regs.h>
#include <contrib/x86emu/x86emu.h>
#include <contrib/x86emu/x86emu_regs.h>
@ -82,9 +83,9 @@ rdw(struct x86emu *emu, uint32_t addr)
((*(a + 1) << 8) & 0xff00);
return r;
} else
return letoh32(*(u_int32_t *)(emu->mem_base + addr));
return le32toh(*(u_int32_t *)(emu->mem_base + addr));
#else
return letoh16(*(u_int16_t *)(emu->mem_base + addr));
return le16toh(*(u_int16_t *)(emu->mem_base + addr));
#endif
}
@ -113,9 +114,9 @@ rdl(struct x86emu *emu, uint32_t addr)
((*(a + 3) << 24) & 0xff000000);
return r;
} else
return letoh32(*(u_int32_t *)(emu->mem_base + addr));
return le32toh(*(u_int32_t *)(emu->mem_base + addr));
#else
return letoh32(*(u_int32_t *)(emu->mem_base + addr));
return le32toh(*(u_int32_t *)(emu->mem_base + addr));
#endif
}

1
sys/modules/Makefile
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@ -298,6 +298,7 @@ SUBDIR= ${_3dfx} \
wlan_xauth \
${_wpi} \
${_wpifw} \
x86emu \
${_xe} \
xfs \
xl \

8
sys/modules/x86emu/Makefile Normal file
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@ -0,0 +1,8 @@
# $FreeBSD$
.PATH: ${.CURDIR}/../../contrib/x86emu
KMOD= x86emu
SRCS= x86emu.c x86emu_util.c
.include <bsd.kmod.mk>

2
sys/sys/param.h
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@ -58,7 +58,7 @@
* in the range 5 to 9.
*/
#undef __FreeBSD_version
#define __FreeBSD_version 900000 /* Master, propagated to newvers */
#define __FreeBSD_version 900001 /* Master, propagated to newvers */
#ifndef LOCORE
#include <sys/types.h>