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-rw-r--r--sys/conf/NOTES2
-rw-r--r--sys/conf/files6
-rw-r--r--sys/conf/options2
-rw-r--r--sys/contrib/x86emu/x86emu.c33
-rw-r--r--sys/dev/dpms/dpms.c101
-rw-r--r--sys/dev/fb/vesa.c415
-rw-r--r--sys/dev/x86bios/x86bios.c218
-rw-r--r--sys/dev/x86bios/x86bios.h138
-rw-r--r--sys/dev/x86bios/x86bios_alloc.c81
-rw-r--r--sys/modules/Makefile2
-rw-r--r--sys/modules/x86bios/Makefile10
-rw-r--r--sys/modules/x86emu/Makefile8
12 files changed, 659 insertions, 357 deletions
diff --git a/sys/conf/NOTES b/sys/conf/NOTES
index 69a80a5..eb027ea 100644
--- a/sys/conf/NOTES
+++ b/sys/conf/NOTES
@@ -2758,4 +2758,4 @@ options BROOKTREE_ALLOC_PAGES=(217*4+1)
options MAXFILES=999
# x86 real mode emulator
-options X86EMU
+options X86BIOS
diff --git a/sys/conf/files b/sys/conf/files
index 2b99879..bdd1854 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -2828,6 +2828,8 @@ 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 | dpms | vesa
-contrib/x86emu/x86emu_util.c optional x86emu | dpms | vesa
+dev/x86bios/x86bios.c optional x86bios | dpms | vesa
+dev/x86bios/x86bios_alloc.c optional x86bios | dpms | vesa
+contrib/x86emu/x86emu.c optional x86bios | dpms | vesa
+contrib/x86emu/x86emu_util.c optional x86bios | dpms | vesa
diff --git a/sys/conf/options b/sys/conf/options
index 4752fb8..1df09d7 100644
--- a/sys/conf/options
+++ b/sys/conf/options
@@ -838,4 +838,4 @@ SND_FEEDER_RATE_HP opt_snd.h
SND_PCM_64 opt_snd.h
SND_OLDSTEREO opt_snd.h
-X86EMU
+X86BIOS
diff --git a/sys/contrib/x86emu/x86emu.c b/sys/contrib/x86emu/x86emu.c
index a26044a..e59ac33 100644
--- a/sys/contrib/x86emu/x86emu.c
+++ b/sys/contrib/x86emu/x86emu.c
@@ -33,10 +33,6 @@
*
*/
-#include <sys/param.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-
#include <contrib/x86emu/x86emu.h>
#include <contrib/x86emu/x86emu_regs.h>
@@ -8335,32 +8331,3 @@ 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);
diff --git a/sys/dev/dpms/dpms.c b/sys/dev/dpms/dpms.c
index ac729f9..d21839b 100644
--- a/sys/dev/dpms/dpms.c
+++ b/sys/dev/dpms/dpms.c
@@ -67,11 +67,7 @@ __FBSDID("$FreeBSD$");
#include <sys/libkern.h>
#include <sys/module.h>
-#include <vm/vm.h>
-#include <vm/pmap.h>
-
-#include <contrib/x86emu/x86emu.h>
-#include <contrib/x86emu/x86emu_regs.h>
+#include <dev/x86bios/x86bios.h>
/*
* VESA DPMS States
@@ -94,9 +90,6 @@ struct dpms_softc {
int dpms_initial_state;
};
-static struct x86emu vesa_emu;
-static unsigned char *emumem = NULL;
-
static int dpms_attach(device_t);
static int dpms_detach(device_t);
static int dpms_get_supported_states(int *);
@@ -126,59 +119,7 @@ static driver_t dpms_driver = {
static devclass_t dpms_devclass;
DRIVER_MODULE(dpms, vgapci, dpms_driver, dpms_devclass, NULL, NULL);
-MODULE_DEPEND(dpms, x86emu, 1, 1, 1);
-
-static uint8_t
-vm86_emu_inb(struct x86emu *emu, uint16_t port)
-{
- if (port == 0xb2) /* APM scratch register */
- return 0;
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return 0;
- return inb(port);
-}
-
-static uint16_t
-vm86_emu_inw(struct x86emu *emu, uint16_t port)
-{
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return 0;
- return inw(port);
-}
-
-static uint32_t
-vm86_emu_inl(struct x86emu *emu, uint16_t port)
-{
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return 0;
- return inl(port);
-}
-
-static void
-vm86_emu_outb(struct x86emu *emu, uint16_t port, uint8_t val)
-{
- if (port == 0xb2) /* APM scratch register */
- return;
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return;
- outb(port, val);
-}
-
-static void
-vm86_emu_outw(struct x86emu *emu, uint16_t port, uint16_t val)
-{
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return;
- outw(port, val);
-}
-
-static void
-vm86_emu_outl(struct x86emu *emu, uint16_t port, uint32_t val)
-{
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return;
- outl(port, val);
-}
+MODULE_DEPEND(dpms, x86bios, 1, 1, 1);
static void
dpms_identify(driver_t *driver, device_t parent)
@@ -192,7 +133,6 @@ dpms_identify(driver_t *driver, device_t parent)
*/
if (devclass_get_device(dpms_devclass, 0) == NULL)
device_add_child(parent, "dpms", 0);
-
}
static int
@@ -200,21 +140,6 @@ dpms_probe(device_t dev)
{
int error, states;
- emumem = pmap_mapbios(0x0, 0xc00000);
-
- memset(&vesa_emu, 0, sizeof(vesa_emu));
- x86emu_init_default(&vesa_emu);
-
- vesa_emu.emu_inb = vm86_emu_inb;
- vesa_emu.emu_inw = vm86_emu_inw;
- vesa_emu.emu_inl = vm86_emu_inl;
- vesa_emu.emu_outb = vm86_emu_outb;
- vesa_emu.emu_outw = vm86_emu_outw;
- vesa_emu.emu_outl = vm86_emu_outl;
-
- vesa_emu.mem_base = (char *)emumem;
- vesa_emu.mem_size = 1024 * 1024;
-
error = dpms_get_supported_states(&states);
if (error)
return (error);
@@ -240,8 +165,6 @@ dpms_attach(device_t dev)
static int
dpms_detach(device_t dev)
{
- if (emumem)
- pmap_unmapdev((vm_offset_t)emumem, 0xc00000);
return (0);
}
@@ -267,17 +190,19 @@ dpms_resume(device_t dev)
static int
dpms_call_bios(int subfunction, int *bh)
{
- vesa_emu.x86.R_AX = VBE_DPMS_FUNCTION;
- vesa_emu.x86.R_BL = subfunction;
- vesa_emu.x86.R_BH = *bh;
- vesa_emu.x86.R_ES = 0;
- vesa_emu.x86.R_DI = 0;
- x86emu_exec_intr(&vesa_emu, 0x10);
-
- if ((vesa_emu.x86.R_EAX & 0xffff) != 0x004f)
+ x86regs_t regs;
+
+ regs.R_AX = VBE_DPMS_FUNCTION;
+ regs.R_BL = subfunction;
+ regs.R_BH = *bh;
+ regs.R_ES = 0;
+ regs.R_DI = 0;
+ x86biosCall(&regs, 0x10);
+
+ if ((regs.R_EAX & 0xffff) != 0x004f)
return (ENXIO);
- *bh = vesa_emu.x86.R_BH;
+ *bh = regs.R_BH;
return (0);
}
diff --git a/sys/dev/fb/vesa.c b/sys/dev/fb/vesa.c
index afd4601..469229c 100644
--- a/sys/dev/fb/vesa.c
+++ b/sys/dev/fb/vesa.c
@@ -45,16 +45,15 @@ __FBSDID("$FreeBSD$");
#include <vm/vm_param.h>
#include <vm/pmap.h>
+#include <machine/pc/bios.h>
#include <dev/fb/vesa.h>
#include <dev/fb/fbreg.h>
#include <dev/fb/vgareg.h>
#include <isa/isareg.h>
-#include <machine/cpufunc.h>
-#include <contrib/x86emu/x86emu.h>
-#include <contrib/x86emu/x86emu_regs.h>
+#include <dev/x86bios/x86bios.h>
#define VESA_VIA_CLE266 "VIA CLE266\r\n"
@@ -73,7 +72,7 @@ typedef struct adp_state adp_state_t;
/* VESA video adapter */
static video_adapter_t *vesa_adp = NULL;
static int vesa_state_buf_size = 0;
-#define VESA_X86EMU_BUFSIZE (3 * PAGE_SIZE)
+#define VESA_BIOS_BUFSIZE (3 * PAGE_SIZE)
/* VESA functions */
#if 0
@@ -106,8 +105,6 @@ static vi_bitblt_t vesa_bitblt;
static vi_diag_t vesa_diag;
static int vesa_bios_info(int level);
-static struct x86emu vesa_emu;
-
static video_switch_t vesavidsw = {
vesa_probe,
vesa_init,
@@ -206,77 +203,6 @@ static void vesa_unmap_buffer(vm_offset_t vaddr, size_t size);
static int vesa_get_origin(video_adapter_t *adp, off_t *offset);
#endif
-#define SEG_ADDR(x) (((x) >> 4) & 0x00F000)
-#define SEG_OFF(x) ((x) & 0x0FFFF)
-
-#if _BYTE_ORDER == _LITTLE_ENDIAN
-#define B_O16(x) (x)
-#define B_O32(x) (x)
-#else
-#define B_O16(x) ((((x) & 0xff) << 8) | (((x) & 0xff) >> 8))
-#define B_O32(x) ((((x) & 0xff) << 24) | (((x) & 0xff00) << 8) \
- | (((x) & 0xff0000) >> 8) | (((x) & 0xff000000) >> 24))
-#endif
-
-#define L_ADD(x) (B_O32(x) & 0xffff) + ((B_O32(x) >> 12) & 0xffff00)
-#define FARP(p) (((unsigned)(p & 0xffff0000) >> 12) | (p & 0xffff))
-
-#define REALOFF(x) (x*4096)
-
-static unsigned char *emumem = NULL;
-
-static uint8_t
-vm86_emu_inb(struct x86emu *emu, uint16_t port)
-{
- if (port == 0xb2) /* APM scratch register */
- return 0;
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return 0;
- return inb(port);
-}
-
-static uint16_t
-vm86_emu_inw(struct x86emu *emu, uint16_t port)
-{
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return 0;
- return inw(port);
-}
-
-static uint32_t
-vm86_emu_inl(struct x86emu *emu, uint16_t port)
-{
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return 0;
- return inl(port);
-}
-
-static void
-vm86_emu_outb(struct x86emu *emu, uint16_t port, uint8_t val)
-{
- if (port == 0xb2) /* APM scratch register */
- return;
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return;
- outb(port, val);
-}
-
-static void
-vm86_emu_outw(struct x86emu *emu, uint16_t port, uint16_t val)
-{
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return;
- outw(port, val);
-}
-
-static void
-vm86_emu_outl(struct x86emu *emu, uint16_t port, uint32_t val)
-{
- if (port >= 0x80 && port < 0x88) /* POST status register */
- return;
- outl(port, val);
-}
-
static void
dump_buffer(u_char *buf, size_t len)
{
@@ -293,8 +219,11 @@ dump_buffer(u_char *buf, size_t len)
static int
int10_set_mode(int mode)
{
- vesa_emu.x86.R_EAX = 0x0000 | mode;
- x86emu_exec_intr(&vesa_emu, 0x10);
+ x86regs_t regs;
+
+ regs.R_EAX = 0x0000 | mode;
+
+ x86biosCall(&regs, 0x10);
return 0;
}
@@ -303,21 +232,28 @@ int10_set_mode(int mode)
static int
vesa_bios_get_mode(int mode, struct vesa_mode *vmode)
{
+ x86regs_t regs;
+ int offs;
u_char *buf;
- vesa_emu.x86.R_EAX = 0x4f01;
- vesa_emu.x86.R_ECX = mode;
+ regs.R_EAX = 0x4f01;
+ regs.R_ECX = mode;
+
+ buf = (u_char *)x86biosAlloc(1, &offs);
- buf = (emumem + REALOFF(3));
- vesa_emu.x86.R_ES = SEG_ADDR(REALOFF(3));
- vesa_emu.x86.R_DI = SEG_OFF(REALOFF(3));
+ regs.R_ES = SEG_ADDR(offs);
+ regs.R_DI = SEG_OFF(offs);
- x86emu_exec_intr(&vesa_emu, 0x10);
+ x86biosCall(&regs, 0x10);
- if ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ if ((regs.R_AX & 0xff) != 0x4f)
+ {
+ x86biosFree(buf, 1);
return 1;
+ }
bcopy(buf, vmode, sizeof(*vmode));
+ x86biosFree(buf, 1);
return 0;
}
@@ -325,62 +261,73 @@ vesa_bios_get_mode(int mode, struct vesa_mode *vmode)
static int
vesa_bios_set_mode(int mode)
{
- vesa_emu.x86.R_EAX = 0x4f02;
- vesa_emu.x86.R_EBX = mode;
+ x86regs_t regs;
+
+ regs.R_EAX = 0x4f02;
+ regs.R_EBX = mode;
- x86emu_exec_intr(&vesa_emu, 0x10);
+ x86biosCall(&regs, 0x10);
- return ((vesa_emu.x86.R_AX & 0xff) != 0x4f);
+ return ((regs.R_AX & 0xff) != 0x4f);
}
static int
vesa_bios_get_dac(void)
{
- vesa_emu.x86.R_EAX = 0x4f08;
- vesa_emu.x86.R_EBX = 1;
+ x86regs_t regs;
- x86emu_exec_intr(&vesa_emu, 0x10);
+ regs.R_EAX = 0x4f08;
+ regs.R_EBX = 1;
- if ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ x86biosCall(&regs, 0x10);
+
+ if ((regs.R_AX & 0xff) != 0x4f)
return 6;
- return ((vesa_emu.x86.R_EBX >> 8) & 0x00ff);
+ return ((regs.R_EBX >> 8) & 0x00ff);
}
static int
vesa_bios_set_dac(int bits)
{
- vesa_emu.x86.R_EAX = 0x4f08;
- vesa_emu.x86.R_EBX = (bits << 8);
+ x86regs_t regs;
+
+ regs.R_EAX = 0x4f08;
+ regs.R_EBX = (bits << 8);
- x86emu_exec_intr(&vesa_emu, 0x10);
+ x86biosCall(&regs, 0x10);
- if ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ if ((regs.R_AX & 0xff) != 0x4f)
return 6;
- return ((vesa_emu.x86.R_EBX >> 8) & 0x00ff);
+ return ((regs.R_EBX >> 8) & 0x00ff);
}
static int
vesa_bios_save_palette(int start, int colors, u_char *palette, int bits)
{
+ x86regs_t regs;
+ int offs;
u_char *p;
int i;
- vesa_emu.x86.R_EAX = 0x4f09;
- vesa_emu.x86.R_EBX = 1;
- vesa_emu.x86.R_ECX = colors;
- vesa_emu.x86.R_EDX = start;
+ regs.R_EAX = 0x4f09;
+ regs.R_EBX = 1;
+ regs.R_ECX = colors;
+ regs.R_EDX = start;
- vesa_emu.x86.R_ES = SEG_ADDR(REALOFF(2));
- vesa_emu.x86.R_DI = SEG_OFF(REALOFF(2));
+ p = (u_char *)x86biosAlloc(1, &offs);
- p = emumem + REALOFF(2);
+ regs.R_ES = SEG_ADDR(offs);
+ regs.R_DI = SEG_OFF(offs);
- x86emu_exec_intr(&vesa_emu, 0x10);
+ x86biosCall(&regs, 0x10);
- if ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ if ((regs.R_AX & 0xff) != 0x4f)
+ {
+ x86biosFree(p, 1);
return 1;
+ }
bits = 8 - bits;
for (i = 0; i < colors; ++i) {
@@ -388,6 +335,8 @@ vesa_bios_save_palette(int start, int colors, u_char *palette, int bits)
palette[i*3 + 1] = p[i*4 + 1] << bits;
palette[i*3 + 2] = p[i*4] << bits;
}
+
+ x86biosFree(p, 1);
return 0;
}
@@ -395,23 +344,28 @@ static int
vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
int bits)
{
+ x86regs_t regs;
+ int offs;
u_char *p;
int i;
- vesa_emu.x86.R_EAX = 0x4f09;
- vesa_emu.x86.R_EBX = 1;
- vesa_emu.x86.R_ECX = colors;
- vesa_emu.x86.R_EDX = start;
+ regs.R_EAX = 0x4f09;
+ regs.R_EBX = 1;
+ regs.R_ECX = colors;
+ regs.R_EDX = start;
- vesa_emu.x86.R_ES = SEG_ADDR(REALOFF(2));
- vesa_emu.x86.R_DI = SEG_OFF(REALOFF(2));
+ p = (u_char *)x86biosAlloc(1, &offs);
- p = emumem + REALOFF(2);
+ regs.R_ES = SEG_ADDR(offs);
+ regs.R_DI = SEG_OFF(offs);
- x86emu_exec_intr(&vesa_emu, 0x10);
+ x86biosCall(&regs, 0x10);
- if ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ if ((regs.R_AX & 0xff) != 0x4f)
+ {
+ x86biosFree(p, 1);
return 1;
+ }
bits = 8 - bits;
for (i = 0; i < colors; ++i) {
@@ -419,16 +373,20 @@ vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
g[i] = p[i*4 + 1] << bits;
b[i] = p[i*4] << bits;
}
+
+ x86biosFree(p, 1);
return 0;
}
static int
vesa_bios_load_palette(int start, int colors, u_char *palette, int bits)
{
+ x86regs_t regs;
+ int offs;
u_char *p;
int i;
- p = (emumem + REALOFF(2));
+ p = (u_char *)x86biosAlloc(1, &offs);
bits = 8 - bits;
for (i = 0; i < colors; ++i) {
@@ -438,17 +396,19 @@ vesa_bios_load_palette(int start, int colors, u_char *palette, int bits)
p[i*4 + 3] = 0;
}
- vesa_emu.x86.R_EAX = 0x4f09;
- vesa_emu.x86.R_EBX = 0;
- vesa_emu.x86.R_ECX = colors;
- vesa_emu.x86.R_EDX = start;
+ regs.R_EAX = 0x4f09;
+ regs.R_EBX = 0;
+ regs.R_ECX = colors;
+ regs.R_EDX = start;
- vesa_emu.x86.R_ES = SEG_ADDR(REALOFF(2));
- vesa_emu.x86.R_DI = SEG_OFF(REALOFF(2));
+ regs.R_ES = SEG_ADDR(offs);
+ regs.R_DI = SEG_OFF(offs);
- x86emu_exec_intr(&vesa_emu, 0x10);
+ x86biosCall(&regs, 0x10);
- return ((vesa_emu.x86.R_AX & 0xff) != 0x4f);
+ x86biosFree(p, 1);
+
+ return ((regs.R_AX & 0xff) != 0x4f);
}
#ifdef notyet
@@ -456,10 +416,12 @@ static int
vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
int bits)
{
+ x86regs_t regs;
+ int offs;
u_char *p;
int i;
- p = (emumem + REALOFF(2));
+ p = (u_char *)x86biosAlloc(1, &offs);
bits = 8 - bits;
for (i = 0; i < colors; ++i) {
@@ -469,93 +431,106 @@ vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
p[i*4 + 3] = 0;
}
- vesa_emu.x86.R_EAX = 0x4f09;
- vesa_emu.x86.R_EBX = 0;
- vesa_emu.x86.R_ECX = colors;
- vesa_emu.x86.R_EDX = start;
+ regs.R_EAX = 0x4f09;
+ regs.R_EBX = 0;
+ regs.R_ECX = colors;
+ regs.R_EDX = start;
+
+ regs.R_ES = SEG_ADDR(offs);
+ regs.R_DI = SEG_OFF(offs);
- vesa_emu.x86.R_ES = SEG_ADDR(REALOFF(2));
- vesa_emu.x86.R_DI = SEG_OFF(REALOFF(2));
+ x86biosCall(&regs, 0x10);
- x86emu_exec_intr(&vesa_emu, 0x10);
+ x86biosFree(p, 1);
- return ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ return ((regs.R_AX & 0xff) != 0x4f);
}
#endif
static int
vesa_bios_state_buf_size(void)
{
- vesa_emu.x86.R_EAX = 0x4f04;
- vesa_emu.x86.R_ECX = STATE_ALL;
- vesa_emu.x86.R_EDX = STATE_SIZE;
+ x86regs_t regs;
- x86emu_exec_intr(&vesa_emu, 0x10);
+ regs.R_EAX = 0x4f04;
+ regs.R_ECX = STATE_ALL;
+ regs.R_EDX = STATE_SIZE;
- if ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ x86biosCall(&regs, 0x10);
+
+ if ((regs.R_AX & 0xff) != 0x4f)
return 0;
- return vesa_emu.x86.R_BX*64;
+ return regs.R_BX*64;
}
static int
vesa_bios_save_restore(int code, void *p, size_t size)
{
+ x86regs_t regs;
+ int offs;
u_char *buf;
- if (size > VESA_X86EMU_BUFSIZE)
+ if (size > VESA_BIOS_BUFSIZE)
return (1);
- vesa_emu.x86.R_EAX = 0x4f04;
- vesa_emu.x86.R_ECX = STATE_ALL;
- vesa_emu.x86.R_EDX = code;
+ regs.R_EAX = 0x4f04;
+ regs.R_ECX = STATE_ALL;
+ regs.R_EDX = code;
- buf = emumem + REALOFF(2);
+ buf = (u_char *)x86biosAlloc(1, &offs);
- vesa_emu.x86.R_ES = SEG_ADDR(REALOFF(2));
- vesa_emu.x86.R_DI = SEG_OFF(REALOFF(2));
+ regs.R_ES = SEG_ADDR(offs);
+ regs.R_DI = SEG_OFF(offs);
bcopy(p, buf, size);
- x86emu_exec_intr(&vesa_emu, 0x10);
+ x86biosCall(&regs, 0x10);
bcopy(buf, p, size);
- return ((vesa_emu.x86.R_AX & 0xff) != 0x4f);
+ x86biosFree(p, 1);
+
+ return ((regs.R_AX & 0xff) != 0x4f);
}
static int
vesa_bios_get_line_length(void)
{
- vesa_emu.x86.R_EAX = 0x4f06;
- vesa_emu.x86.R_EBX = 1;
+ x86regs_t regs;
- x86emu_exec_intr(&vesa_emu, 0x10);
+ regs.R_EAX = 0x4f06;
+ regs.R_EBX = 1;
- if ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ x86biosCall(&regs, 0x10);
+
+ if ((regs.R_AX & 0xff) != 0x4f)
return -1;
- return vesa_emu.x86.R_BX;
+
+ return regs.R_BX;
}
static int
vesa_bios_set_line_length(int pixel, int *bytes, int *lines)
{
- vesa_emu.x86.R_EAX = 0x4f06;
- vesa_emu.x86.R_EBX = 0;
- vesa_emu.x86.R_ECX = pixel;
+ x86regs_t regs;
- x86emu_exec_intr(&vesa_emu, 0x10);
+ regs.R_EAX = 0x4f06;
+ regs.R_EBX = 0;
+ regs.R_ECX = pixel;
+
+ x86biosCall(&regs, 0x10);
#if VESA_DEBUG > 1
- printf("bx:%d, cx:%d, dx:%d\n", vesa_emu.x86.R_BX, vesa_emu.x86.R_CX, vesa_emu.x86.R_DX);
+ printf("bx:%d, cx:%d, dx:%d\n", regs.R_BX, regs.R_CX, regs.R_DX);
#endif
- if ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ if ((regs.R_AX & 0xff) != 0x4f)
return -1;
if (bytes)
- *bytes = vesa_emu.x86.R_BX;
+ *bytes = regs.R_BX;
if (lines)
- *lines = vesa_emu.x86.R_DX;
+ *lines = regs.R_DX;
return 0;
}
@@ -564,16 +539,18 @@ vesa_bios_set_line_length(int pixel, int *bytes, int *lines)
static int
vesa_bios_get_start(int *x, int *y)
{
- vesa_emu.x86.R_EAX = 0x4f07;
- vesa_emu.x86.R_EBX = 1;
+ x86regs_t regs;
+
+ regs.R_EAX = 0x4f07;
+ regs.R_EBX = 1;
- x86emu_exec_intr(&vesa_emu, 0x10);
+ x86biosCall(&regs, 0x10);
- if ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ if ((regs.R_AX & 0xff) != 0x4f)
return -1;
- *x = vesa_emu.x86.R_CX;
- *y = vesa_emu.x86.R_DX;
+ *x = regs.R_CX;
+ *y = regs.R_DX;
return 0;
}
@@ -582,14 +559,16 @@ vesa_bios_get_start(int *x, int *y)
static int
vesa_bios_set_start(int x, int y)
{
- vesa_emu.x86.R_EAX = 0x4f07;
- vesa_emu.x86.R_EBX = 0x80;
- vesa_emu.x86.R_EDX = y;
- vesa_emu.x86.R_ECX = x;
+ x86regs_t regs;
- x86emu_exec_intr(&vesa_emu, 0x10);
+ regs.R_EAX = 0x4f07;
+ regs.R_EBX = 0x80;
+ regs.R_EDX = y;
+ regs.R_ECX = x;
- return ((vesa_emu.x86.R_AX & 0xff) != 0x4f);
+ x86biosCall(&regs, 0x10);
+
+ return ((regs.R_AX & 0xff) != 0x4f);
}
/* map a generic video mode to a known mode */
@@ -665,6 +644,8 @@ vesa_bios_init(void)
static struct vesa_info buf;
struct vesa_mode vmode;
video_info_t *p;
+ x86regs_t regs;
+ int offs;
u_char *vmbuf;
int is_via_cle266;
int modes;
@@ -678,16 +659,16 @@ vesa_bios_init(void)
vesa_vmode_max = 0;
vesa_vmode[0].vi_mode = EOT;
- vmbuf = (emumem + REALOFF(2));
+ vmbuf = (u_char *)x86biosAlloc(1, &offs);
bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */
- vesa_emu.x86.R_EAX = 0x4f00;
- vesa_emu.x86.R_ES = SEG_ADDR(REALOFF(2));
- vesa_emu.x86.R_DI = SEG_OFF(REALOFF(2));
+ regs.R_EAX = 0x4f00;
+ regs.R_ES = SEG_ADDR(offs);
+ regs.R_DI = SEG_OFF(offs);
- x86emu_exec_intr(&vesa_emu, 0x10);
+ x86biosCall(&regs, 0x10);
- if (((vesa_emu.x86.R_AX & 0xff) != 0x4f) || bcmp("VESA", vmbuf, 4))
+ if (((regs.R_AX & 0xff) != 0x4f) || bcmp("VESA", vmbuf, 4))
return 1;
bcopy(vmbuf, &buf, sizeof(buf));
@@ -707,17 +688,17 @@ vesa_bios_init(void)
return 1;
}
- vesa_oemstr = (char *)(emumem + L_ADD(vesa_adp_info->v_oemstr));
+ vesa_oemstr = (char *)x86biosOffs(FARP(vesa_adp_info->v_oemstr));
is_via_cle266 = strcmp(vesa_oemstr, VESA_VIA_CLE266) == 0;
if (vesa_adp_info->v_version >= 0x0200) {
- vesa_venderstr = (char *)(emumem+L_ADD(vesa_adp_info->v_venderstr));
- vesa_prodstr = (char *)(emumem+L_ADD(vesa_adp_info->v_prodstr));
- vesa_revstr = (char *)(emumem+L_ADD(vesa_adp_info->v_revstr));
+ vesa_venderstr = (char *)x86biosOffs(FARP(vesa_adp_info->v_venderstr));
+ vesa_prodstr = (char *)x86biosOffs(FARP(vesa_adp_info->v_prodstr));
+ vesa_revstr = (char *)x86biosOffs(FARP(vesa_adp_info->v_revstr));
}
- vesa_vmodetab = (u_int16_t *)(emumem+L_ADD(vesa_adp_info->v_modetable));
+ vesa_vmodetab = (u_int16_t *)x86biosOffs(FARP(vesa_adp_info->v_modetable));
if (vesa_vmodetab == NULL)
return 1;
@@ -802,7 +783,7 @@ vesa_bios_init(void)
- vmode.v_lfb;
else
vesa_vmode[modes].vi_buffer_size
- = vmode.v_offscreen + vmode.v_offscreensize*1024
+ = vmode.v_offscreen + vmode.v_offscreensize*1024;
#endif
vesa_vmode[modes].vi_mem_model
= vesa_translate_mmodel(vmode.v_memmodel);
@@ -843,6 +824,9 @@ vesa_bios_init(void)
++modes;
}
vesa_vmode[modes].vi_mode = EOT;
+
+ x86biosFree(vmbuf, 1);
+
if (bootverbose)
printf("VESA: %d mode(s) found\n", modes);
@@ -1127,7 +1111,7 @@ vesa_set_mode(video_adapter_t *adp, int mode)
} else {
vesa_adp->va_buffer = 0;
vesa_adp->va_buffer_size = info.vi_buffer_size;
- vesa_adp->va_window = (vm_offset_t)(emumem+L_ADD(info.vi_window));
+ vesa_adp->va_window = BIOS_PADDRTOVADDR(info.vi_window);
vesa_adp->va_window_size = info.vi_window_size;
vesa_adp->va_window_gran = info.vi_window_gran;
}
@@ -1276,14 +1260,16 @@ vesa_load_state(video_adapter_t *adp, void *p)
static int
vesa_get_origin(video_adapter_t *adp, off_t *offset)
{
- vesa_emu.x86.R_EAX = 0x4f05;
- vesa_emu.x86.R_EBX = 0x10;
+ x86regs_t regs;
- x86emu_exec_intr(&vesa_emu, 0x10);
+ regs.R_EAX = 0x4f05;
+ regs.R_EBX = 0x10;
- if ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ x86biosCall(&regs, 0x10);
+
+ if ((regs.R_AX & 0xff) != 0x4f)
return 1;
- *offset = vesa_emu.x86.DX*adp->va_window_gran;
+ *offset = regs.DX*adp->va_window_gran;
return 0;
}
@@ -1292,6 +1278,8 @@ vesa_get_origin(video_adapter_t *adp, off_t *offset)
static int
vesa_set_origin(video_adapter_t *adp, off_t offset)
{
+ x86regs_t regs;
+
/*
* This function should return as quickly as possible to
* maintain good performance of the system. For this reason,
@@ -1308,18 +1296,18 @@ vesa_set_origin(video_adapter_t *adp, off_t offset)
if (adp->va_window_gran == 0)
return 1;
- vesa_emu.x86.R_EAX = 0x4f05;
- vesa_emu.x86.R_EBX = 0;
- vesa_emu.x86.R_EDX = offset/adp->va_window_gran;
- x86emu_exec_intr(&vesa_emu, 0x10);
+ regs.R_EAX = 0x4f05;
+ regs.R_EBX = 0;
+ regs.R_EDX = offset/adp->va_window_gran;
+ x86biosCall(&regs, 0x10);
- if ((vesa_emu.x86.R_AX & 0xff) != 0x4f)
+ if ((regs.R_AX & 0xff) != 0x4f)
return 1;
- vesa_emu.x86.R_EAX = 0x4f05;
- vesa_emu.x86.R_EBX = 1;
- vesa_emu.x86.R_EDX = offset/adp->va_window_gran;
- x86emu_exec_intr(&vesa_emu, 0x10);
+ regs.R_EAX = 0x4f05;
+ regs.R_EBX = 1;
+ regs.R_EDX = offset/adp->va_window_gran;
+ x86biosCall(&regs, 0x10);
adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran;
return 0; /* XXX */
@@ -1654,22 +1642,6 @@ vesa_load(void)
if (vesa_init_done)
return 0;
- /* Can `emumem' be NULL here? */
- emumem = pmap_mapbios(0x0, 0xc00000);
-
- memset(&vesa_emu, 0, sizeof(vesa_emu));
- x86emu_init_default(&vesa_emu);
-
- vesa_emu.emu_inb = vm86_emu_inb;
- vesa_emu.emu_inw = vm86_emu_inw;
- vesa_emu.emu_inl = vm86_emu_inl;
- vesa_emu.emu_outb = vm86_emu_outb;
- vesa_emu.emu_outw = vm86_emu_outw;
- vesa_emu.emu_outl = vm86_emu_outl;
-
- vesa_emu.mem_base = (char *)emumem;
- vesa_emu.mem_size = 1024 * 1024;
-
/* locate a VGA adapter */
s = spltty();
vesa_adp = NULL;
@@ -1717,9 +1689,6 @@ vesa_unload(void)
}
splx(s);
- if (emumem)
- pmap_unmapdev((vm_offset_t)emumem, 0xc00000);
-
return error;
}
@@ -1744,6 +1713,6 @@ static moduledata_t vesa_mod = {
};
DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
-MODULE_DEPEND(vesa, x86emu, 1, 1, 1);
+MODULE_DEPEND(vesa, x86bios, 1, 1, 1);
#endif /* VGA_NO_MODE_CHANGE */
diff --git a/sys/dev/x86bios/x86bios.c b/sys/dev/x86bios/x86bios.c
new file mode 100644
index 0000000..f531f1a
--- /dev/null
+++ b/sys/dev/x86bios/x86bios.c
@@ -0,0 +1,218 @@
+/*-
+ * Written by paradox <ddkprog@yahoo.com>
+ * Public domain.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_x86bios.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+
+#include <vm/vm.h>
+#include <vm/vm_extern.h>
+#include <vm/vm_kern.h>
+#include <vm/vm_param.h>
+#include <vm/pmap.h>
+
+#include <machine/cpufunc.h>
+
+#include <contrib/x86emu/x86emu.h>
+#include <contrib/x86emu/x86emu_regs.h>
+#include <dev/x86bios/x86bios.h>
+
+unsigned char *pbiosMem = NULL;
+static unsigned char *pbiosStack = NULL;
+
+int busySegMap[5];
+
+static struct x86emu xbios86emu;
+
+static struct mtx x86bios_lock;
+
+static uint8_t
+vm86_emu_inb(struct x86emu *emu, uint16_t port)
+{
+ if (port == 0xb2) /* APM scratch register */
+ return 0;
+ if (port >= 0x80 && port < 0x88) /* POST status register */
+ return 0;
+ return inb(port);
+}
+
+static uint16_t
+vm86_emu_inw(struct x86emu *emu, uint16_t port)
+{
+ if (port >= 0x80 && port < 0x88) /* POST status register */
+ return 0;
+ return inw(port);
+}
+
+static uint32_t
+vm86_emu_inl(struct x86emu *emu, uint16_t port)
+{
+ if (port >= 0x80 && port < 0x88) /* POST status register */
+ return 0;
+ return inl(port);
+}
+
+static void
+vm86_emu_outb(struct x86emu *emu, uint16_t port, uint8_t val)
+{
+ if (port == 0xb2) /* APM scratch register */
+ return;
+ if (port >= 0x80 && port < 0x88) /* POST status register */
+ return;
+ outb(port, val);
+}
+
+static void
+vm86_emu_outw(struct x86emu *emu, uint16_t port, uint16_t val)
+{
+ if (port >= 0x80 && port < 0x88) /* POST status register */
+ return;
+ outw(port, val);
+}
+
+static void
+vm86_emu_outl(struct x86emu *emu, uint16_t port, uint32_t val)
+{
+ if (port >= 0x80 && port < 0x88) /* POST status register */
+ return;
+ outl(port, val);
+}
+
+void
+x86biosCall(struct x86regs *regs, int intno)
+{
+ if (intno < 0 || intno > 255)
+ return;
+
+ mtx_lock(&x86bios_lock);
+ critical_enter();
+
+ xbios86emu.x86.R_EAX = regs->R_EAX;
+ xbios86emu.x86.R_EBX = regs->R_EBX;
+ xbios86emu.x86.R_ECX = regs->R_ECX;
+ xbios86emu.x86.R_EDX = regs->R_EDX;
+
+ xbios86emu.x86.R_ESP = regs->R_ESP;
+ xbios86emu.x86.R_EBP = regs->R_EBP;
+ xbios86emu.x86.R_ESI = regs->R_ESI;
+ xbios86emu.x86.R_EDI = regs->R_EDI;
+ xbios86emu.x86.R_EIP = regs->R_EIP;
+ xbios86emu.x86.R_EFLG = regs->R_EFLG;
+
+ xbios86emu.x86.R_CS = regs->R_CS;
+ xbios86emu.x86.R_DS = regs->R_DS;
+ xbios86emu.x86.R_SS = regs->R_SS;
+ xbios86emu.x86.R_ES = regs->R_ES;
+ xbios86emu.x86.R_FS = regs->R_FS;
+ xbios86emu.x86.R_GS = regs->R_GS;
+
+ x86emu_exec_intr(&xbios86emu, intno);
+
+ regs->R_EAX = xbios86emu.x86.R_EAX;
+ regs->R_EBX = xbios86emu.x86.R_EBX;
+ regs->R_ECX = xbios86emu.x86.R_ECX;
+ regs->R_EDX = xbios86emu.x86.R_EDX;
+
+ regs->R_ESP = xbios86emu.x86.R_ESP;
+ regs->R_EBP = xbios86emu.x86.R_EBP;
+ regs->R_ESI = xbios86emu.x86.R_ESI;
+ regs->R_EDI = xbios86emu.x86.R_EDI;
+ regs->R_EIP = xbios86emu.x86.R_EIP;
+ regs->R_EFLG = xbios86emu.x86.R_EFLG;
+
+ regs->R_CS = xbios86emu.x86.R_CS;
+ regs->R_DS = xbios86emu.x86.R_DS;
+ regs->R_SS = xbios86emu.x86.R_SS;
+ regs->R_ES = xbios86emu.x86.R_ES;
+ regs->R_FS = xbios86emu.x86.R_FS;
+ regs->R_GS = xbios86emu.x86.R_GS;
+
+ critical_exit();
+ mtx_unlock(&x86bios_lock);
+}
+
+void *
+x86biosOffs(uint32_t offs)
+{
+ return (pbiosMem + offs);
+}
+
+static void
+x86bios_init(void *arg __unused)
+{
+ int offs;
+
+ mtx_init(&x86bios_lock, "x86bios lock", NULL, MTX_DEF);
+
+ /* Can pbiosMem be NULL here? */
+ pbiosMem = pmap_mapbios(0x0, MAPPED_MEMORY_SIZE);
+
+ memset(&xbios86emu, 0, sizeof(xbios86emu));
+ x86emu_init_default(&xbios86emu);
+
+ xbios86emu.emu_inb = vm86_emu_inb;
+ xbios86emu.emu_inw = vm86_emu_inw;
+ xbios86emu.emu_inl = vm86_emu_inl;
+ xbios86emu.emu_outb = vm86_emu_outb;
+ xbios86emu.emu_outw = vm86_emu_outw;
+ xbios86emu.emu_outl = vm86_emu_outl;
+
+ xbios86emu.mem_base = (char *)pbiosMem;
+ xbios86emu.mem_size = 1024 * 1024;
+
+ memset(busySegMap, 0, sizeof(busySegMap));
+
+ pbiosStack = x86biosAlloc(1, &offs);
+}
+
+static void
+x86bios_uninit(void *arg __unused)
+{
+ x86biosFree(pbiosStack, 1);
+
+ if (pbiosMem)
+ pmap_unmapdev((vm_offset_t)pbiosMem,
+ MAPPED_MEMORY_SIZE);
+
+ mtx_destroy(&x86bios_lock);
+}
+
+static int
+x86bios_modevent(module_t mod __unused, int type, void *data __unused)
+{
+ int err = 0;
+
+ switch (type) {
+ case MOD_LOAD:
+ x86bios_init(NULL);
+ break;
+ case MOD_UNLOAD:
+ x86bios_uninit(NULL);
+ break;
+ default:
+ err = ENOTSUP;
+ break;
+ }
+
+ return (err);
+}
+
+static moduledata_t x86bios_mod = {
+ "x86bios",
+ x86bios_modevent,
+ NULL,
+};
+
+DECLARE_MODULE(x86bios, x86bios_mod, SI_SUB_KLD, SI_ORDER_ANY);
+MODULE_VERSION(x86bios, 1);
+
diff --git a/sys/dev/x86bios/x86bios.h b/sys/dev/x86bios/x86bios.h
new file mode 100644
index 0000000..3785f3c
--- /dev/null
+++ b/sys/dev/x86bios/x86bios.h
@@ -0,0 +1,138 @@
+/*-
+ * Written by paradox <ddkprog@yahoo.com>
+ * Public domain.
+ *
+ * x86 registers were borrowed from x86emu.h x86emu_regs.h
+ * for compatability.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _X86BIOS_H_
+#define _X86BIOS_H_
+
+#include <sys/types.h>
+#include <sys/endian.h>
+#include <sys/systm.h>
+
+#ifdef __BIG_ENDIAN__
+
+struct x86_register32 {
+ uint32_t e_reg;
+};
+
+struct x86_register16 {
+ uint16_t filler0;
+ uint16_t x_reg;
+};
+
+struct x86_register8 {
+ uint8_t filler0, filler1;
+ uint8_t h_reg, l_reg;
+};
+
+#else /* !__BIG_ENDIAN__ */
+
+struct x86_register32 {
+ uint32_t e_reg;
+};
+
+struct x86_register16 {
+ uint16_t x_reg;
+};
+
+struct x86_register8 {
+ uint8_t l_reg, h_reg;
+};
+
+#endif /* __BIG_ENDIAN__ */
+
+union x86_register {
+ struct x86_register32 I32_reg;
+ struct x86_register16 I16_reg;
+ struct x86_register8 I8_reg;
+};
+
+struct x86regs {
+ uint16_t register_cs;
+ uint16_t register_ds;
+ uint16_t register_es;
+ uint16_t register_fs;
+ uint16_t register_gs;
+ uint16_t register_ss;
+ uint32_t register_flags;
+ union x86_register register_a;
+ union x86_register register_b;
+ union x86_register register_c;
+ union x86_register register_d;
+
+ union x86_register register_sp;
+ union x86_register register_bp;
+ union x86_register register_si;
+ union x86_register register_di;
+ union x86_register register_ip;
+};
+
+typedef struct x86regs x86regs_t;
+
+/* 8 bit registers */
+#define R_AH register_a.I8_reg.h_reg
+#define R_AL register_a.I8_reg.l_reg
+#define R_BH register_b.I8_reg.h_reg
+#define R_BL register_b.I8_reg.l_reg
+#define R_CH register_c.I8_reg.h_reg
+#define R_CL register_c.I8_reg.l_reg
+#define R_DH register_d.I8_reg.h_reg
+#define R_DL register_d.I8_reg.l_reg
+
+/* 16 bit registers */
+#define R_AX register_a.I16_reg.x_reg
+#define R_BX register_b.I16_reg.x_reg
+#define R_CX register_c.I16_reg.x_reg
+#define R_DX register_d.I16_reg.x_reg
+
+/* 32 bit extended registers */
+#define R_EAX register_a.I32_reg.e_reg
+#define R_EBX register_b.I32_reg.e_reg
+#define R_ECX register_c.I32_reg.e_reg
+#define R_EDX register_d.I32_reg.e_reg
+
+/* special registers */
+#define R_SP register_sp.I16_reg.x_reg
+#define R_BP register_bp.I16_reg.x_reg
+#define R_SI register_si.I16_reg.x_reg
+#define R_DI register_di.I16_reg.x_reg
+#define R_IP register_ip.I16_reg.x_reg
+#define R_FLG register_flags
+
+/* special registers */
+#define R_ESP register_sp.I32_reg.e_reg
+#define R_EBP register_bp.I32_reg.e_reg
+#define R_ESI register_si.I32_reg.e_reg
+#define R_EDI register_di.I32_reg.e_reg
+#define R_EIP register_ip.I32_reg.e_reg
+#define R_EFLG register_flags
+
+/* segment registers */
+#define R_CS register_cs
+#define R_DS register_ds
+#define R_SS register_ss
+#define R_ES register_es
+#define R_FS register_fs
+#define R_GS register_gs
+
+#define SEG_ADDR(x) (((x) >> 4) & 0x00F000)
+#define SEG_OFF(x) ((x) & 0x0FFFF)
+#define FARP(x) ((le32toh(x) & 0xffff) + ((le32toh(x) >> 12) & 0xffff00))
+
+#define MAPPED_MEMORY_SIZE 0xc00000
+#define PAGE_RESERV (4096*5)
+
+__BEGIN_DECLS
+void x86biosCall(struct x86regs *regs, int intno);
+void *x86biosAlloc(int count, int *segs);
+void x86biosFree(void *pbuf, int count);
+void *x86biosOffs(uint32_t offs);
+__END_DECLS
+
+#endif /* !_X86BIOS_H_ */
diff --git a/sys/dev/x86bios/x86bios_alloc.c b/sys/dev/x86bios/x86bios_alloc.c
new file mode 100644
index 0000000..e790e9d
--- /dev/null
+++ b/sys/dev/x86bios/x86bios_alloc.c
@@ -0,0 +1,81 @@
+/*-
+ * Copyright (C) 1999 Egbert Eich
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and that
+ * both that copyright notice and this permission notice appear in
+ * supporting documentation, and that the name of the authors not be used
+ * in advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. The authors makes no
+ * representations about the suitability of this software for any purpose.
+ * It is provided "as is" without express or implied warranty.
+ *
+ * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ *
+ * xserver/hw/xfree86/int10/generic.c
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+
+#include <dev/x86bios/x86bios.h>
+
+extern unsigned char *pbiosMem;
+extern int busySegMap[5];
+
+void *
+x86biosAlloc(int count, int *segs)
+{
+ int i;
+ int j;
+
+ /* find the free segblock of page */
+ for (i = 0; i < (PAGE_RESERV - count); i++)
+ {
+ if (busySegMap[i] == 0)
+ {
+ /* find the capacity of segblock */
+ for (j = i; j < (i + count); j++)
+ {
+ if (busySegMap[j] == 1)
+ break;
+ }
+
+ if (j == (i + count))
+ break;
+ i += count;
+ }
+ }
+
+ if (i == (PAGE_RESERV - count))
+ return NULL;
+
+ /* make the segblock is used */
+ for (j = i; j < (i + count); j++)
+ busySegMap[i] = 1;
+
+ *segs = i * 4096;
+
+ return (pbiosMem + *segs);
+}
+
+void
+x86biosFree(void *pbuf, int count)
+{
+ int i;
+ int busySeg;
+
+ busySeg = ((unsigned char *)pbuf - (unsigned char *)pbiosMem)/4096;
+
+ for (i = busySeg; i < (busySeg + count); i++)
+ busySegMap[i] = 0;
+}
diff --git a/sys/modules/Makefile b/sys/modules/Makefile
index c07dea8..b54314e 100644
--- a/sys/modules/Makefile
+++ b/sys/modules/Makefile
@@ -298,7 +298,7 @@ SUBDIR= ${_3dfx} \
wlan_xauth \
${_wpi} \
${_wpifw} \
- x86emu \
+ x86bios \
${_xe} \
xfs \
xl \
diff --git a/sys/modules/x86bios/Makefile b/sys/modules/x86bios/Makefile
new file mode 100644
index 0000000..5dc3811
--- /dev/null
+++ b/sys/modules/x86bios/Makefile
@@ -0,0 +1,10 @@
+# $FreeBSD$
+
+KMOD= x86bios
+SRCS= opt_x86bios.h
+
+.PATH: ${.CURDIR}/../../contrib/x86emu
+.PATH: ${.CURDIR}/../../dev/x86bios
+SRCS+= x86bios.c x86bios_alloc.c x86emu.c x86emu_util.c
+
+.include <bsd.kmod.mk>
diff --git a/sys/modules/x86emu/Makefile b/sys/modules/x86emu/Makefile
deleted file mode 100644
index 3991d6c..0000000
--- a/sys/modules/x86emu/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-# $FreeBSD$
-
-.PATH: ${.CURDIR}/../../contrib/x86emu
-
-KMOD= x86emu
-SRCS= x86emu.c x86emu_util.c
-
-.include <bsd.kmod.mk>
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