diff options
Diffstat (limited to 'edd')
| -rw-r--r-- | edd/COPYING | 483 | ||||
| -rw-r--r-- | edd/Makefile | 35 | ||||
| -rw-r--r-- | edd/edd.c | 223 | ||||
| -rw-r--r-- | edd/edd.h | 66 | ||||
| -rw-r--r-- | edd/lrmi.c | 911 | ||||
| -rw-r--r-- | edd/lrmi.h | 85 | ||||
| -rw-r--r-- | edd/pyedd.c | 71 |
7 files changed, 0 insertions, 1874 deletions
diff --git a/edd/COPYING b/edd/COPYING deleted file mode 100644 index 0b643ac83..000000000 --- a/edd/COPYING +++ /dev/null @@ -1,483 +0,0 @@ - - GNU LIBRARY GENERAL PUBLIC LICENSE - Version 2, June 1991 - - Copyright (C) 1991 Free Software Foundation, Inc. - 675 Mass Ave, Cambridge, MA 02139, USA - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - -[This is the first released version of the library GPL. It is - numbered 2 because it goes with version 2 of the ordinary GPL.] - - Preamble - - The licenses for most software are designed to take away your -freedom to share and change it. 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if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#include <sys/io.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "lrmi.h" -#include "edd.h" - -static int edd_lrmi_initialized = 0; - -static int -edd_lrmi_init (void) { - if (edd_lrmi_initialized) - return EDD_SUCCESS; - - if (iopl(3)) { - fprintf (stderr, "ERROR: failed to set iopl permissions\n"); - return EDD_ERROR; - } - - if (ioperm(0, 0x400, 1)) { - fprintf (stderr, "ERROR: failed to set ioperm permissions\n"); - return EDD_ERROR; - } - - /* Initialize LRMI. */ - if(LRMI_init() == 1) { - edd_lrmi_initialized = 1; - return EDD_SUCCESS; - } - - fprintf (stderr, "ERROR: failed to initialize lrmi library\n"); - return EDD_ERROR; -} - -EDDParameters * -edd_get_parameters (EDDCapability *ec) -{ - struct LRMI_regs regs; - EDDParameters *ep, *ret; - - return NULL; - - if (edd_lrmi_init() == EDD_ERROR) { - return NULL; - } - - (unsigned char *) ep = LRMI_alloc_real(sizeof(EDDParameters)); - if (ep == NULL) { - return NULL; - } - - memset(ep, 0, sizeof(EDDParameters)); - memset(®s, 0, sizeof(regs)); - - if (ec->version.major == 3) - ep->buffer_size = 0x42; - else if (ec->version.major == 2) - ep->buffer_size = 0x1e; - else - ep->buffer_size = 0x1a; - - regs.eax = 0x4800; - regs.edx = ec->drive & 0x00ff; - regs.es = ((u_int32_t) ep) >> 4; - regs.edi = ((u_int32_t) ep) & 0x0f; - - printf ("%p -> 0x%x 0x%x\n", ep, regs.es, regs.edi); - - if(LRMI_int(0x13, ®s) == 0) { - LRMI_free_real((unsigned char *) ep); - return NULL; - } - - /* XXX check return */ - printf ("0x%x\n", regs.eax); - printf ("0x%x\n", regs.flags); - - ret = malloc (sizeof (EDDParameters)); - if (ret == NULL) { - fprintf (stderr, "out of memory\n"); - abort(); - } - memcpy (ret, ep, sizeof (EDDParameters)); - LRMI_free_real((unsigned char *) ep); - - return ret; -} - -EDDCapability * -edd_supported(int drive) -{ - struct LRMI_regs regs; - - FILE *f = fopen("/proc/cmdline", "r"); - if (f) { - char buf[100]; - fgets(buf, sizeof(buf) - 1, f); - fclose(f); - if (strstr(buf, "lba32")) { - EDDCapability *ec = malloc (sizeof (EDDCapability)); - ec->edd = 1; - return ec; - } - - } - - if (edd_lrmi_init() == EDD_ERROR) { - return NULL; - } - - memset(®s, 0, sizeof(regs)); - regs.eax = 0x4100; - regs.ebx = 0x55aa; - regs.edx = drive & 0xff; - - /* Do it. */ - if (LRMI_int (0x13, ®s) == 0) { - return NULL; - } - - /* Check for successful return. */ - if(regs.ebx == 0xaa55) { - /* Supported, report capabilities */ - EDDCapability *ec = malloc (sizeof (EDDCapability)); - memset (ec, 0, sizeof (EDDCapability)); - - if (ec == NULL) { - fprintf (stderr, "out of memory\n"); - abort(); - } - - if ((regs.eax & 0xff00) == 0x0100) { - ec->version.major = 1; - ec->version.minor = 0; - } else if ((regs.eax & 0xff00) == 0x2000) { - ec->version.major = 2; - ec->version.minor = 0; - } else if ((regs.eax & 0xff00) == 0x2100) { - ec->version.major = 2; - ec->version.minor = 1; - } else if ((regs.eax & 0xff00) == 0x3000) { - ec->version.major = 3; - ec->version.minor = 0; - } else { -/* fprintf (stderr, "WARNING: Unknown EDD version 0x%x supported\n", */ -/* regs.eax & 0xff00); */ - /* XXX hack, get rid of stderr output */ - ec->version.major = 1; - ec->version.minor = 0; - } - if (regs.ecx & EDD_CAPABILITY_EDA) - ec->eda = 1; - - if (regs.ecx & EDD_CAPABILITY_REMOVABLE) - ec->removable = 1; - - if (regs.ecx & EDD_CAPABILITY_EDD) - ec->edd = 1; - - ec->drive = drive; - - return ec; - } else { - /* Not supported. */ - return NULL; - } -} - -#ifdef TESTING -int -main (void) -{ - int i; - EDDCapability *ec; - EDDParameters *ep; - - for (i = 0x80; i < 0x90; i++) { - if ((ec = edd_supported(i))) { - printf ("edd version %d.%d supported on 0x%x\n", ec->version.major, - ec->version.minor, i); - printf (" extended disk access %s\n", - ec->eda ? "supported" : "not supported"); - printf (" removable media functions %s\n", - ec->removable ? "supported" : "not supported"); - printf (" edd functions %s\n", - ec->edd ? "supported" : "not supported"); - ep = edd_get_parameters (ec); - if (ep) { - printf ("heads: %d cyl: %d sec/track: %d\n", - ep->heads, ep->cyls, ep->sectors); - free (ep); - } else - printf ("get_parameters call failed\n"); - free (ec); - } else - printf ("edd not supported on 0x%x\n", i); - } - - return 0; -} -#endif - - - - diff --git a/edd/edd.h b/edd/edd.h deleted file mode 100644 index 2a21ab2f1..000000000 --- a/edd/edd.h +++ /dev/null @@ -1,66 +0,0 @@ -/* - * edd.h - real mode bios library for discovering EDD capabilities of - * BIOS drives - * - * Matt Wilson <msw@redhat.com> - * - * Copyright 2000 Red Hat, Inc. - * - * This software may be freely redistributed under the terms of the GNU - * library public license. - * - * You should have received a copy of the GNU Library Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#ifndef __EDD_H__ -#define __EDD_H__ - -#include <sys/types.h> - -#define EDD_ERROR 1 -#define EDD_SUCCESS 0 - -#define EDD_CAPABILITY_EDA 1 << 0 -#define EDD_CAPABILITY_REMOVABLE 1 << 1 -#define EDD_CAPABILITY_EDD 1 << 2 - -typedef struct EDDParameters_t { - u_int16_t buffer_size; - u_int16_t info_flags; - u_int32_t cyls; - u_int32_t heads; - u_int32_t sectors; - u_int64_t total_sectors; - u_int16_t bytes_per_sector; - /* -- 2.0+ -- */ - u_int32_t parameters; - /* -- 3.0 -- */ - u_int16_t path_signature; - unsigned char path_length; - unsigned char path_reserved[3]; - unsigned char path_bus[3]; - unsigned char path_interface[8]; - unsigned char path_interface_path[8]; - unsigned char path_device_path[8]; - unsigned char tail_reserved; - unsigned char checksum; -} EDDParameters; - -typedef struct EDDCapability_t { - int drive; - struct { - int major, minor; - } version; - int eda : 1; - int removable : 1; - int edd : 1; -} EDDCapability; - -EDDCapability * edd_supported(int drive); -EDDParameters * edd_get_parameters (EDDCapability *ec); - - -#endif /* __EDD_H__ */ diff --git a/edd/lrmi.c b/edd/lrmi.c deleted file mode 100644 index ca8af0a1e..000000000 --- a/edd/lrmi.c +++ /dev/null @@ -1,911 +0,0 @@ -/* -Linux Real Mode Interface - A library of DPMI-like functions for Linux. - -Copyright (C) 1998 by Josh Vanderhoof - -You are free to distribute and modify this file, as long as you -do not remove this copyright notice and clearly label modified -versions as being modified. - -This software has NO WARRANTY. Use it at your own risk. -*/ - -#include <stdio.h> -#include <string.h> -#include <sys/io.h> -#include <asm/vm86.h> - -#ifdef USE_LIBC_VM86 -#include <sys/vm86.h> -#endif - -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/mman.h> -#include <unistd.h> -#include <fcntl.h> - -#include "lrmi.h" - -#define REAL_MEM_BASE ((void *)0x10000) -#define REAL_MEM_SIZE 0x10000 -#define REAL_MEM_BLOCKS 0x100 - -struct mem_block - { - unsigned int size : 20; - unsigned int free : 1; - }; - -static struct - { - int ready; - int count; - struct mem_block blocks[REAL_MEM_BLOCKS]; - } mem_info = { 0 }; - -static int -real_mem_init(void) - { - void *m; - int fd_zero; - - if (mem_info.ready) - return 1; - - fd_zero = open("/dev/zero", O_RDONLY); - if (fd_zero == -1) - { - perror("open /dev/zero"); - return 0; - } - - m = mmap((void *)REAL_MEM_BASE, REAL_MEM_SIZE, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_FIXED | MAP_PRIVATE, fd_zero, 0); - - if (m == (void *)-1) - { - perror("mmap /dev/zero"); - close(fd_zero); - return 0; - } - - mem_info.ready = 1; - mem_info.count = 1; - mem_info.blocks[0].size = REAL_MEM_SIZE; - mem_info.blocks[0].free = 1; - - return 1; - } - - -static void -insert_block(int i) - { - memmove( - mem_info.blocks + i + 1, - mem_info.blocks + i, - (mem_info.count - i) * sizeof(struct mem_block)); - - mem_info.count++; - } - -static void -delete_block(int i) - { - mem_info.count--; - - memmove( - mem_info.blocks + i, - mem_info.blocks + i + 1, - (mem_info.count - i) * sizeof(struct mem_block)); - } - -void * -LRMI_alloc_real(int size) - { - int i; - char *r = (char *)REAL_MEM_BASE; - - if (!mem_info.ready) - return NULL; - - if (mem_info.count == REAL_MEM_BLOCKS) - return NULL; - - size = (size + 15) & ~15; - - for (i = 0; i < mem_info.count; i++) - { - if (mem_info.blocks[i].free && size < mem_info.blocks[i].size) - { - insert_block(i); - - mem_info.blocks[i].size = size; - mem_info.blocks[i].free = 0; - mem_info.blocks[i + 1].size -= size; - - return (void *)r; - } - - r += mem_info.blocks[i].size; - } - - return NULL; - } - - -void -LRMI_free_real(void *m) - { - int i; - char *r = (char *)REAL_MEM_BASE; - - if (!mem_info.ready) - return; - - i = 0; - while (m != (void *)r) - { - r += mem_info.blocks[i].size; - i++; - if (i == mem_info.count) - return; - } - - mem_info.blocks[i].free = 1; - - if (i + 1 < mem_info.count && mem_info.blocks[i + 1].free) - { - mem_info.blocks[i].size += mem_info.blocks[i + 1].size; - delete_block(i + 1); - } - - if (i - 1 >= 0 && mem_info.blocks[i - 1].free) - { - mem_info.blocks[i - 1].size += mem_info.blocks[i].size; - delete_block(i); - } - } - - -#define DEFAULT_VM86_FLAGS (IF_MASK | IOPL_MASK) -#define DEFAULT_STACK_SIZE 0x1000 -#define RETURN_TO_32_INT 255 - -static struct - { - int ready; - unsigned short ret_seg, ret_off; - unsigned short stack_seg, stack_off; - struct vm86_struct vm; - } context = { 0 }; - - -static inline void -set_bit(unsigned int bit, void *array) - { - unsigned char *a = array; - - a[bit / 8] |= (1 << (bit % 8)); - } - - -static inline unsigned int -get_int_seg(int i) - { - return *(unsigned short *)(i * 4 + 2); - } - - -static inline unsigned int -get_int_off(int i) - { - return *(unsigned short *)(i * 4); - } - - -static inline void -pushw(unsigned short i) - { - struct vm86_regs *r = &context.vm.regs; - r->esp -= 2; - *(unsigned short *)(((unsigned int)r->ss << 4) + r->esp) = i; - } - - -int -LRMI_init(void) - { - void *m; - int fd_mem; - - if (context.ready) - return 1; - - if (!real_mem_init()) - return 0; - - /* - Map the Interrupt Vectors (0x0 - 0x400) + BIOS data (0x400 - 0x502) - and the ROM (0xa0000 - 0x100000) - */ - fd_mem = open("/dev/mem", O_RDWR); - - if (fd_mem == -1) - { - perror("open /dev/mem"); - return 0; - } - - m = mmap((void *)0, 0x502, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_FIXED | MAP_PRIVATE, fd_mem, 0); - - if (m == (void *)-1) - { - perror("mmap /dev/mem"); - return 0; - } - - m = mmap((void *)0xa0000, 0x100000 - 0xa0000, - PROT_READ | PROT_WRITE, - MAP_FIXED | MAP_SHARED, fd_mem, 0xa0000); - - if (m == (void *)-1) - { - perror("mmap /dev/mem"); - return 0; - } - - - /* - Allocate a stack - */ - m = LRMI_alloc_real(DEFAULT_STACK_SIZE); - - context.stack_seg = (unsigned int)m >> 4; - context.stack_off = DEFAULT_STACK_SIZE; - - /* - Allocate the return to 32 bit routine - */ - m = LRMI_alloc_real(2); - - context.ret_seg = (unsigned int)m >> 4; - context.ret_off = (unsigned int)m & 0xf; - - ((unsigned char *)m)[0] = 0xcd; /* int opcode */ - ((unsigned char *)m)[1] = RETURN_TO_32_INT; - - memset(&context.vm, 0, sizeof(context.vm)); - - /* - Enable kernel emulation of all ints except RETURN_TO_32_INT - */ - memset(&context.vm.int_revectored, 0, sizeof(context.vm.int_revectored)); - set_bit(RETURN_TO_32_INT, &context.vm.int_revectored); - - context.ready = 1; - - return 1; - } - - -static void -set_regs(struct LRMI_regs *r) - { - context.vm.regs.edi = r->edi; - context.vm.regs.esi = r->esi; - context.vm.regs.ebp = r->ebp; - context.vm.regs.ebx = r->ebx; - context.vm.regs.edx = r->edx; - context.vm.regs.ecx = r->ecx; - context.vm.regs.eax = r->eax; - context.vm.regs.eflags = DEFAULT_VM86_FLAGS; - context.vm.regs.es = r->es; - context.vm.regs.ds = r->ds; - context.vm.regs.fs = r->fs; - context.vm.regs.gs = r->gs; - } - - -static void -get_regs(struct LRMI_regs *r) - { - r->edi = context.vm.regs.edi; - r->esi = context.vm.regs.esi; - r->ebp = context.vm.regs.ebp; - r->ebx = context.vm.regs.ebx; - r->edx = context.vm.regs.edx; - r->ecx = context.vm.regs.ecx; - r->eax = context.vm.regs.eax; - r->flags = context.vm.regs.eflags; - r->es = context.vm.regs.es; - r->ds = context.vm.regs.ds; - r->fs = context.vm.regs.fs; - r->gs = context.vm.regs.gs; - } - -#define DIRECTION_FLAG (1 << 10) - -static void -em_ins(int size) - { - unsigned int edx, edi; - - edx = context.vm.regs.edx & 0xffff; - edi = context.vm.regs.edi & 0xffff; - edi += (unsigned int)context.vm.regs.ds << 4; - - if (context.vm.regs.eflags & DIRECTION_FLAG) - { - if (size == 4) - asm volatile ("std; insl; cld" - : "=D" (edi) : "d" (edx), "0" (edi)); - else if (size == 2) - asm volatile ("std; insw; cld" - : "=D" (edi) : "d" (edx), "0" (edi)); - else - asm volatile ("std; insb; cld" - : "=D" (edi) : "d" (edx), "0" (edi)); - } - else - { - if (size == 4) - asm volatile ("cld; insl" - : "=D" (edi) : "d" (edx), "0" (edi)); - else if (size == 2) - asm volatile ("cld; insw" - : "=D" (edi) : "d" (edx), "0" (edi)); - else - asm volatile ("cld; insb" - : "=D" (edi) : "d" (edx), "0" (edi)); - } - - edi -= (unsigned int)context.vm.regs.ds << 4; - - context.vm.regs.edi &= 0xffff0000; - context.vm.regs.edi |= edi & 0xffff; - } - -static void -em_rep_ins(int size) - { - unsigned int ecx, edx, edi; - - ecx = context.vm.regs.ecx & 0xffff; - edx = context.vm.regs.edx & 0xffff; - edi = context.vm.regs.edi & 0xffff; - edi += (unsigned int)context.vm.regs.ds << 4; - - if (context.vm.regs.eflags & DIRECTION_FLAG) - { - if (size == 4) - asm volatile ("std; rep; insl; cld" - : "=D" (edi), "=c" (ecx) - : "d" (edx), "0" (edi), "1" (ecx)); - else if (size == 2) - asm volatile ("std; rep; insw; cld" - : "=D" (edi), "=c" (ecx) - : "d" (edx), "0" (edi), "1" (ecx)); - else - asm volatile ("std; rep; insb; cld" - : "=D" (edi), "=c" (ecx) - : "d" (edx), "0" (edi), "1" (ecx)); - } - else - { - if (size == 4) - asm volatile ("cld; rep; insl" - : "=D" (edi), "=c" (ecx) - : "d" (edx), "0" (edi), "1" (ecx)); - else if (size == 2) - asm volatile ("cld; rep; insw" - : "=D" (edi), "=c" (ecx) - : "d" (edx), "0" (edi), "1" (ecx)); - else - asm volatile ("cld; rep; insb" - : "=D" (edi), "=c" (ecx) - : "d" (edx), "0" (edi), "1" (ecx)); - } - - edi -= (unsigned int)context.vm.regs.ds << 4; - - context.vm.regs.edi &= 0xffff0000; - context.vm.regs.edi |= edi & 0xffff; - - context.vm.regs.ecx &= 0xffff0000; - context.vm.regs.ecx |= ecx & 0xffff; - } - -static void -em_outs(int size) - { - unsigned int edx, esi; - - edx = context.vm.regs.edx & 0xffff; - esi = context.vm.regs.esi & 0xffff; - esi += (unsigned int)context.vm.regs.ds << 4; - - if (context.vm.regs.eflags & DIRECTION_FLAG) - { - if (size == 4) - asm volatile ("std; outsl; cld" - : "=S" (esi) : "d" (edx), "0" (esi)); - else if (size == 2) - asm volatile ("std; outsw; cld" - : "=S" (esi) : "d" (edx), "0" (esi)); - else - asm volatile ("std; outsb; cld" - : "=S" (esi) : "d" (edx), "0" (esi)); - } - else - { - if (size == 4) - asm volatile ("cld; outsl" - : "=S" (esi) : "d" (edx), "0" (esi)); - else if (size == 2) - asm volatile ("cld; outsw" - : "=S" (esi) : "d" (edx), "0" (esi)); - else - asm volatile ("cld; outsb" - : "=S" (esi) : "d" (edx), "0" (esi)); - } - - esi -= (unsigned int)context.vm.regs.ds << 4; - - context.vm.regs.esi &= 0xffff0000; - context.vm.regs.esi |= esi & 0xffff; - } - -static void -em_rep_outs(int size) - { - unsigned int ecx, edx, esi; - - ecx = context.vm.regs.ecx & 0xffff; - edx = context.vm.regs.edx & 0xffff; - esi = context.vm.regs.esi & 0xffff; - esi += (unsigned int)context.vm.regs.ds << 4; - - if (context.vm.regs.eflags & DIRECTION_FLAG) - { - if (size == 4) - asm volatile ("std; rep; outsl; cld" - : "=S" (esi), "=c" (ecx) - : "d" (edx), "0" (esi), "1" (ecx)); - else if (size == 2) - asm volatile ("std; rep; outsw; cld" - : "=S" (esi), "=c" (ecx) - : "d" (edx), "0" (esi), "1" (ecx)); - else - asm volatile ("std; rep; outsb; cld" - : "=S" (esi), "=c" (ecx) - : "d" (edx), "0" (esi), "1" (ecx)); - } - else - { - if (size == 4) - asm volatile ("cld; rep; outsl" - : "=S" (esi), "=c" (ecx) - : "d" (edx), "0" (esi), "1" (ecx)); - else if (size == 2) - asm volatile ("cld; rep; outsw" - : "=S" (esi), "=c" (ecx) - : "d" (edx), "0" (esi), "1" (ecx)); - else - asm volatile ("cld; rep; outsb" - : "=S" (esi), "=c" (ecx) - : "d" (edx), "0" (esi), "1" (ecx)); - } - - esi -= (unsigned int)context.vm.regs.ds << 4; - - context.vm.regs.esi &= 0xffff0000; - context.vm.regs.esi |= esi & 0xffff; - - context.vm.regs.ecx &= 0xffff0000; - context.vm.regs.ecx |= ecx & 0xffff; - } - -static void -em_inbl(unsigned char literal) - { - context.vm.regs.eax = inb(literal) & 0xff; - } - -static void -em_inb(void) - { - asm volatile ("inb (%w1), %b0" - : "=a" (context.vm.regs.eax) - : "d" (context.vm.regs.edx), "0" (context.vm.regs.eax)); - } - -static void -em_inw(void) - { - asm volatile ("inw (%w1), %w0" - : "=a" (context.vm.regs.eax) - : "d" (context.vm.regs.edx), "0" (context.vm.regs.eax)); - } - -static void -em_inl(void) - { - asm volatile ("inl (%w1), %0" - : "=a" (context.vm.regs.eax) - : "d" (context.vm.regs.edx)); - } - -static void -em_outbl(unsigned char literal) - { - outb(context.vm.regs.eax & 0xff, literal); - } - -static void -em_outb(void) - { - asm volatile ("outb %b0, (%w1)" - : : "a" (context.vm.regs.eax), - "d" (context.vm.regs.edx)); - } - -static void -em_outw(void) - { - asm volatile ("outw %w0, (%w1)" - : : "a" (context.vm.regs.eax), - "d" (context.vm.regs.edx)); - } - -static void -em_outl(void) - { - asm volatile ("outl %0, (%w1)" - : : "a" (context.vm.regs.eax), - "d" (context.vm.regs.edx)); - } - -static int -emulate(void) - { - unsigned char *insn; - struct - { - unsigned int size : 1; - unsigned int rep : 1; - } prefix = { 0, 0 }; - int i = 0; - - insn = (unsigned char *)((unsigned int)context.vm.regs.cs << 4); - insn += context.vm.regs.eip; - - while (1) - { - if (insn[i] == 0x66) - { - prefix.size = 1 - prefix.size; - i++; - } - else if (insn[i] == 0xf3) - { - prefix.rep = 1; - i++; - } - else if (insn[i] == 0xf0 || insn[i] == 0xf2 - || insn[i] == 0x26 || insn[i] == 0x2e - || insn[i] == 0x36 || insn[i] == 0x3e - || insn[i] == 0x64 || insn[i] == 0x65 - || insn[i] == 0x67) - { - /* these prefixes are just ignored */ - i++; - } - else if (insn[i] == 0x6c) - { - if (prefix.rep) - em_rep_ins(1); - else - em_ins(1); - i++; - break; - } - else if (insn[i] == 0x6d) - { - if (prefix.rep) - { - if (prefix.size) - em_rep_ins(4); - else - em_rep_ins(2); - } - else - { - if (prefix.size) - em_ins(4); - else - em_ins(2); - } - i++; - break; - } - else if (insn[i] == 0x6e) - { - if (prefix.rep) - em_rep_outs(1); - else - em_outs(1); - i++; - break; - } - else if (insn[i] == 0x6f) - { - if (prefix.rep) - { - if (prefix.size) - em_rep_outs(4); - else - em_rep_outs(2); - } - else - { - if (prefix.size) - em_outs(4); - else - em_outs(2); - } - i++; - break; - } - else if (insn[i] == 0xe4) - { - em_inbl(insn[i + 1]); - i += 2; - break; - } - else if (insn[i] == 0xe6) - { - em_outbl(insn[i + 1]); - i += 2; - break; - } - else if (insn[i] == 0xec) - { - em_inb(); - i++; - break; - } - else if (insn[i] == 0xed) - { - if (prefix.size) - em_inl(); - else - em_inw(); - i++; - break; - } - else if (insn[i] == 0xee) - { - em_outb(); - i++; - break; - } - else if (insn[i] == 0xef) - { - if (prefix.size) - em_outl(); - else - em_outw(); - - i++; - break; - } - else - return 0; - } - - context.vm.regs.eip += i; - return 1; - } - - -/* - I don't know how to make sure I get the right vm86() from libc. - The one I want is syscall # 113 (vm86old() in libc 5, vm86() in glibc) - which should be declared as "int vm86(struct vm86_struct *);" in - <sys/vm86.h>. - - This just does syscall 113 with inline asm, which should work - for both libc's (I hope). -*/ -#if !defined(USE_LIBC_VM86) -static int -lrmi_vm86(struct vm86_struct *vm) - { - int r; -#ifdef __PIC__ - asm volatile ( - "pushl %%ebx\n\t" - "movl %2, %%ebx\n\t" - "int $0x80\n\t" - "popl %%ebx" - : "=a" (r) - : "0" (113), "r" (vm)); -#else - asm volatile ( - "int $0x80" - : "=a" (r) - : "0" (113), "b" (vm)); -#endif - return r; - } -#else -#define lrmi_vm86 vm86 -#endif - - -static void -debug_info(int vret) - { - int i; - unsigned char *p; - - fputs("vm86() failed\n", stderr); - fprintf(stderr, "return = 0x%x\n", vret); - fprintf(stderr, "eax = 0x%08lx\n", context.vm.regs.eax); - fprintf(stderr, "ebx = 0x%08lx\n", context.vm.regs.ebx); - fprintf(stderr, "ecx = 0x%08lx\n", context.vm.regs.ecx); - fprintf(stderr, "edx = 0x%08lx\n", context.vm.regs.edx); - fprintf(stderr, "esi = 0x%08lx\n", context.vm.regs.esi); - fprintf(stderr, "edi = 0x%08lx\n", context.vm.regs.edi); - fprintf(stderr, "ebp = 0x%08lx\n", context.vm.regs.ebp); - fprintf(stderr, "eip = 0x%08lx\n", context.vm.regs.eip); - fprintf(stderr, "cs = 0x%04x\n", context.vm.regs.cs); - fprintf(stderr, "esp = 0x%08lx\n", context.vm.regs.esp); - fprintf(stderr, "ss = 0x%04x\n", context.vm.regs.ss); - fprintf(stderr, "ds = 0x%04x\n", context.vm.regs.ds); - fprintf(stderr, "es = 0x%04x\n", context.vm.regs.es); - fprintf(stderr, "fs = 0x%04x\n", context.vm.regs.fs); - fprintf(stderr, "gs = 0x%04x\n", context.vm.regs.gs); - fprintf(stderr, "eflags = 0x%08lx\n", context.vm.regs.eflags); - - fputs("cs:ip = [ ", stderr); - - p = (unsigned char *)((context.vm.regs.cs << 4) + (context.vm.regs.eip & 0xffff)); - - for (i = 0; i < 16; ++i) - fprintf(stderr, "%02x ", (unsigned int)p[i]); - - fputs("]\n", stderr); - } - - -static int -run_vm86(void) - { - unsigned int vret; - - while (1) - { - vret = lrmi_vm86(&context.vm); - - if (VM86_TYPE(vret) == VM86_INTx) - { - unsigned int v = VM86_ARG(vret); - - if (v == RETURN_TO_32_INT) - return 1; - - pushw(context.vm.regs.eflags); - pushw(context.vm.regs.cs); - pushw(context.vm.regs.eip); - - context.vm.regs.cs = get_int_seg(v); - context.vm.regs.eip = get_int_off(v); - context.vm.regs.eflags &= ~(VIF_MASK | TF_MASK); - - continue; - } - - if (VM86_TYPE(vret) != VM86_UNKNOWN) - break; - - if (!emulate()) - break; - } - -#ifdef ORIGINAL_LRMI_CODE_THAT_GOT_IFDEFED_OUT - debug_info(vret); -#endif - return 0; - } - - -int -LRMI_call(struct LRMI_regs *r) - { - unsigned int vret; - - memset(&context.vm.regs, 0, sizeof(context.vm.regs)); - - set_regs(r); - - context.vm.regs.cs = r->cs; - context.vm.regs.eip = r->ip; - - if (r->ss == 0 && r->sp == 0) - { - context.vm.regs.ss = context.stack_seg; - context.vm.regs.esp = context.stack_off; - } - else - { - context.vm.regs.ss = r->ss; - context.vm.regs.esp = r->sp; - } - - pushw(context.ret_seg); - pushw(context.ret_off); - - vret = run_vm86(); - - get_regs(r); - - return vret; - } - - -int -LRMI_int(int i, struct LRMI_regs *r) - { - unsigned int vret; - unsigned int seg, off; - - seg = get_int_seg(i); - off = get_int_off(i); - - /* - If the interrupt is in regular memory, it's probably - still pointing at a dos TSR (which is now gone). - */ - if (seg < 0xa000 || (seg << 4) + off >= 0x100000) - { -#ifdef ORIGINAL_LRMI_CODE_THAT_GOT_IFDEFED_OUT - fprintf(stderr, "Int 0x%x is not in rom (%04x:%04x)\n", i, seg, off); -#endif - return 0; - } - - memset(&context.vm.regs, 0, sizeof(context.vm.regs)); - - set_regs(r); - - context.vm.regs.cs = seg; - context.vm.regs.eip = off; - - if (r->ss == 0 && r->sp == 0) - { - context.vm.regs.ss = context.stack_seg; - context.vm.regs.esp = context.stack_off; - } - else - { - context.vm.regs.ss = r->ss; - context.vm.regs.esp = r->sp; - } - - pushw(DEFAULT_VM86_FLAGS); - pushw(context.ret_seg); - pushw(context.ret_off); - - vret = run_vm86(); - - get_regs(r); - - return vret; - } - diff --git a/edd/lrmi.h b/edd/lrmi.h deleted file mode 100644 index c9c186365..000000000 --- a/edd/lrmi.h +++ /dev/null @@ -1,85 +0,0 @@ -/* -Linux Real Mode Interface - A library of DPMI-like functions for Linux. - -Copyright (C) 1998 by Josh Vanderhoof - -You are free to distribute and modify this file, as long as you -do not remove this copyright notice and clearly label modified -versions as being modified. - -This software has NO WARRANTY. Use it at your own risk. -*/ - -#ifndef LRMI_H -#define LRMI_H - -struct LRMI_regs - { - unsigned int edi; - unsigned int esi; - unsigned int ebp; - unsigned int reserved; - unsigned int ebx; - unsigned int edx; - unsigned int ecx; - unsigned int eax; - unsigned short int flags; - unsigned short int es; - unsigned short int ds; - unsigned short int fs; - unsigned short int gs; - unsigned short int ip; - unsigned short int cs; - unsigned short int sp; - unsigned short int ss; - }; - - -#ifndef LRMI_PREFIX -#define LRMI_PREFIX LRMI_ -#endif - -#define LRMI_CONCAT2(a, b) a ## b -#define LRMI_CONCAT(a, b) LRMI_CONCAT2(a, b) -#define LRMI_MAKENAME(a) LRMI_CONCAT(LRMI_PREFIX, a) - -/* - Initialize - returns 1 if sucessful, 0 for failure -*/ -#define LRMI_init LRMI_MAKENAME(init) -int -LRMI_init(void); - -/* - Simulate a 16 bit far call - returns 1 if sucessful, 0 for failure -*/ -#define LRMI_call LRMI_MAKENAME(call) -int -LRMI_call(struct LRMI_regs *r); - -/* - Simulate a 16 bit interrupt - returns 1 if sucessful, 0 for failure -*/ -#define LRMI_int LRMI_MAKENAME(int) -int -LRMI_int(int interrupt, struct LRMI_regs *r); - -/* - Allocate real mode memory - The returned block is paragraph (16 byte) aligned -*/ -#define LRMI_alloc_real LRMI_MAKENAME(alloc_real) -void * -LRMI_alloc_real(int size); - -/* - Free real mode memory -*/ -#define LRMI_free_real LRMI_MAKENAME(free_real) -void -LRMI_free_real(void *m); - -#endif diff --git a/edd/pyedd.c b/edd/pyedd.c deleted file mode 100644 index 75aa98854..000000000 --- a/edd/pyedd.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * pyedd.c - real mode bios library for discovering EDD capabilities of - * BIOS drives - * - * Matt Wilson <msw@redhat.com> - * - * Copyright 2000 Red Hat, Inc. - * - * This software may be freely redistributed under the terms of the GNU - * library public license. - * - * You should have received a copy of the GNU Library Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#include "edd.h" - -#include <sys/wait.h> -#include <sys/resource.h> -#include <unistd.h> - -#include <Python.h> - -static PyObject * edd_py_detect (PyObject * s, PyObject * args); - -static PyMethodDef edd_module_methods[] = { - { "detect", (PyCFunction) edd_py_detect, METH_VARARGS, NULL }, - { NULL } -}; - -static PyObject * -edd_py_detect (PyObject * s, PyObject * args) { - EDDCapability *ec; - int device = 0x80; - pid_t childpid; - int status; - - if (!PyArg_ParseTuple(args, "|i", &device)) - return NULL; - - /* Run this probe as a child as it sometimes segv's in the vm stuff. - The child returns 1 if edd works, and 0 if it doesn't. */ - - if (!(childpid = fork())) { - /* lets not drop core file if we do segv */ - struct rlimit lims; - - lims.rlim_cur = 0; - setrlimit(RLIMIT_CORE, &lims); - - if ((ec = edd_supported(device))) { - free (ec); - _exit(1); - } - - _exit(0); - } - - waitpid(childpid, &status, 0); - - if (WIFEXITED(status) && WEXITSTATUS(status)) - return Py_BuildValue ("i", 1); - - return Py_BuildValue ("i", 0); -} - -void initedd (void) { - Py_InitModule("edd", edd_module_methods); -} |