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-rw-r--r--i386/i386at/conf.c9
-rw-r--r--i386/i386at/iopl.c290
2 files changed, 0 insertions, 299 deletions
diff --git a/i386/i386at/conf.c b/i386/i386at/conf.c
index c3049ef..eee218a 100644
--- a/i386/i386at/conf.c
+++ b/i386/i386at/conf.c
@@ -58,10 +58,6 @@ extern int kbdgetstat(), kbdsetstat();
extern int mouseopen(), mouseclose(), mouseread(), mousegetstat();
#define mousename "mouse"
-extern int ioplopen(), ioplclose();
-extern vm_offset_t ioplmmap();
-#define ioplname "iopl"
-
extern int kmsgopen(), kmsgclose(), kmsgread(), kmsggetstat();
#define kmsgname "kmsg"
@@ -117,11 +113,6 @@ struct dev_ops dev_name_list[] =
nodev, nulldev, nulldev, 0,
nodev },
- { ioplname, ioplopen, ioplclose, nodev,
- nodev, nodev, nodev, ioplmmap,
- nodev, nulldev, nulldev, 0,
- nodev },
-
#ifdef MACH_KMSG
{ kmsgname, kmsgopen, kmsgclose, kmsgread,
nodev, kmsggetstat, nodev, nomap,
diff --git a/i386/i386at/iopl.c b/i386/i386at/iopl.c
deleted file mode 100644
index 8080911..0000000
--- a/i386/i386at/iopl.c
+++ /dev/null
@@ -1,290 +0,0 @@
-/*
- * Mach Operating System
- * Copyright (c) 1991,1990,1989 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
-
-#include <mach/vm_prot.h>
-#include <mach/machine/vm_types.h>
-#include <mach/machine/vm_param.h>
-#include <mach/machine/eflags.h>
-
-#include <ipc/ipc_port.h>
-
-#include <device/io_req.h>
-
-#include <i386/io_port.h>
-#include <i386/pit.h>
-#include <i386/pio.h>
-
-/*
- * IOPL device.
- */
-ipc_port_t iopl_device_port = IP_NULL;
-mach_device_t iopl_device = 0;
-
-/*
- * Ports that we allow access to.
- */
-io_reg_t iopl_port_list[] = {
- /* timer 2 */
- 0x42,
- /* speaker output */
- 0x61,
- /* ATI - savage */
- 0x1ce, 0x1cf,
- /* game port */
- 0x201,
- /* sound board */
- 0x220, 0x221, 0x222, 0x223, 0x224, 0x225, 0x226, 0x227,
- 0x228, 0x229, 0x22a, 0x22b, 0x22c, 0x22d, 0x22e, 0x22f,
- /* printer */
- 0x278, 0x279, 0x27a,
- 0x378, 0x379, 0x37a,
- /* ega/vga */
- 0x3b0, 0x3b1, 0x3b2, 0x3b3, 0x3b4, 0x3b5, 0x3b6, 0x3b7,
- 0x3b8, 0x3b9, 0x3ba, 0x3bb, 0x3bc, 0x3bd, 0x3be, 0x3bf,
- 0x3c0, 0x3c1, 0x3c2, 0x3c3, 0x3c4, 0x3c5, 0x3c6, 0x3c7,
- 0x3c8, 0x3c9, 0x3ca, 0x3cb, 0x3cc, 0x3cd, 0x3ce, 0x3cf,
- 0x3d0, 0x3d1, 0x3d2, 0x3d3, 0x3d4, 0x3d5, 0x3d6, 0x3d7,
- 0x3d8, 0x3d9, 0x3da, 0x3db, 0x3dc, 0x3dd, 0x3de, 0x3df,
- /* end of list */
- IO_REG_NULL,
- /* patch space */
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-int
-ioplopen(dev, flag, ior)
- int dev;
- int flag;
- io_req_t ior;
-{
- iopl_device_port = ior->io_device->port;
- iopl_device = ior->io_device;
-
- io_port_create(iopl_device, iopl_port_list);
- return (0);
-}
-
-
-/*ARGSUSED*/
-int
-ioplclose(dev, flags)
- int dev;
- int flags;
-{
- io_port_destroy(iopl_device);
- iopl_device_port = IP_NULL;
- iopl_device = 0;
- return 0;
-}
-
-/*ARGSUSED*/
-int iopl_all = 1;
-int
-ioplmmap(dev, off, prot)
-int dev;
-vm_offset_t off;
-vm_prot_t prot;
-{
- extern vm_offset_t phys_last_addr;
-
- if (iopl_all) {
- if (off == 0)
- return 0;
- else if (off < 0xa0000)
- return -1;
- else if (off >= 0x100000 && off <= phys_last_addr)
- return -1;
- else
- return i386_btop(off);
-
- }
- if (off > 0x60000)
- return(-1);
-
- /* Get page frame number for the page to be mapped. */
-
- return(i386_btop(0xa0000 + off));
-}
-
-/*
- * For DOS compatibility, it's easier to list the ports we don't
- * allow access to.
- */
-#define IOPL_PORTS_USED_MAX 256
-io_reg_t iopl_ports_used[IOPL_PORTS_USED_MAX] = {
- IO_REG_NULL
-};
-
-boolean_t
-iopl_port_forbidden(io_port)
- int io_port;
-{
- int i;
-
-#if 0 /* we only read from these... it should be OK */
-
- if (io_port <= 0xff)
- return TRUE; /* system ports. 42,61,70,71 allowed above */
-
- if (io_port >= 0x130 && io_port <= 0x137)
- return TRUE; /* AHA disk */
-
- if (io_port >= 0x170 && io_port <= 0x177)
- return TRUE; /* HD disk */
-
- if (io_port >= 0x1f0 && io_port <= 0x1f7)
- return TRUE; /* HD disk */
-
- if (io_port >= 0x230 && io_port <= 0x237)
- return TRUE; /* AHA disk */
-
- if (io_port >= 0x280 && io_port <= 0x2df)
- return TRUE; /* 8390 network */
-
- if (io_port >= 0x300 && io_port <= 0x31f)
- return TRUE; /* 8390 network */
-
- if (io_port >= 0x330 && io_port <= 0x337)
- return TRUE; /* AHA disk */
-
- if (io_port >= 0x370 && io_port <= 0x377)
- return TRUE; /* FD disk */
-
- if (io_port >= 0x3f0 && io_port <= 0x3f7)
- return TRUE; /* FD disk */
-
-#endif
-
- /*
- * Must be OK, as far as we know...
- * Record the port in the list, for
- * curiosity seekers.
- */
- for (i = 0; i < IOPL_PORTS_USED_MAX; i++) {
- if (iopl_ports_used[i] == io_port)
- break; /* in list */
- if (iopl_ports_used[i] == IO_REG_NULL) {
- iopl_ports_used[i] = io_port;
- iopl_ports_used[i+1] = IO_REG_NULL;
- break;
- }
- }
-
- return FALSE;
-}
-
-/*
- * Emulate certain IO instructions for the AT bus.
- *
- * We emulate writes to the timer control port, 43.
- * Only writes to timer 2 are allowed.
- *
- * Temporarily, we allow reads of any IO port,
- * but ONLY if the thread has the IOPL device mapped
- * and is not in V86 mode.
- *
- * This is a HACK and MUST go away when the DOS emulator
- * emulates these IO ports, or when we decide that
- * the DOS world can get access to all uncommitted IO
- * ports. In that case, config() should remove the IO
- * ports for devices it exists from the allowable list.
- */
-boolean_t
-iopl_emulate(regs, opcode, io_port)
- struct i386_saved_state *regs;
- int opcode;
- int io_port;
-{
- iopb_tss_t iopb;
-
- iopb = current_thread()->pcb->ims.io_tss;
- if (iopb == 0)
- return FALSE; /* no IO mapped */
-
- /*
- * Handle outb to the timer control port,
- * for timer 2 only.
- */
- if (io_port == PITCTL_PORT) {
-
- int io_byte = regs->eax & 0xff;
-
- if (((iopb->bitmap[PITCTR2_PORT >> 3] & (1 << (PITCTR2_PORT & 0x7)))
- == 0) /* allowed */
- && (opcode == 0xe6 || opcode == 0xee) /* outb */
- && (io_byte & 0xc0) == 0x80) /* timer 2 */
- {
- outb(io_port, io_byte);
- return TRUE;
- }
- return FALSE; /* invalid IO to port 42 */
- }
-
- /*
- * If the thread has the IOPL device mapped, and
- * the io port is not on the 'forbidden' list, allow
- * reads from it. Reject writes.
- *
- * Don`t do this for V86 mode threads
- * (hack for DOS emulator XXX!)
- */
- if (!(regs->efl & EFL_VM) &&
- iopb_check_mapping(current_thread(), iopl_device) &&
- !iopl_port_forbidden(io_port))
- {
- /*
- * handle inb, inw, inl
- */
- switch (opcode) {
- case 0xE4: /* inb imm */
- case 0xEC: /* inb dx */
- regs->eax = (regs->eax & 0xffffff00)
- | inb(io_port);
- return TRUE;
-
- case 0x66E5: /* inw imm */
- case 0x66ED: /* inw dx */
- regs->eax = (regs->eax & 0xffff0000)
- | inw(io_port);
- return TRUE;
-
- case 0xE5: /* inl imm */
- case 0xED: /* inl dx */
- regs->eax = inl(io_port);
- return TRUE;
-
- default:
- return FALSE; /* OUT not allowed */
- }
- }
-
- /*
- * Not OK.
- */
- return FALSE;
-}
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 22:04:17 +0000