Date: Thu, 14 Jun 2012 07:49:23 +0000 From: syuu@FreeBSD.org To: svn-soc-all@FreeBSD.org Subject: socsvn commit: r237672 - soc2012/syuu/bhyve-bios/usr.sbin/bhyvebiosload Message-ID: <20120614074923.45FD9106566B@hub.freebsd.org>
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Author: syuu Date: Thu Jun 14 07:49:22 2012 New Revision: 237672 URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=237672 Log: forked bhyveload to bhyvebiosload Added: soc2012/syuu/bhyve-bios/usr.sbin/bhyvebiosload/ soc2012/syuu/bhyve-bios/usr.sbin/bhyvebiosload/Makefile soc2012/syuu/bhyve-bios/usr.sbin/bhyvebiosload/bhyvebiosload.c Added: soc2012/syuu/bhyve-bios/usr.sbin/bhyvebiosload/Makefile ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ soc2012/syuu/bhyve-bios/usr.sbin/bhyvebiosload/Makefile Thu Jun 14 07:49:22 2012 (r237672) @@ -0,0 +1,14 @@ +# $FreeBSD: soc2012/syuu/bhyve-bios/usr.sbin/bhyvebiosload/Makefile 224004 2011-07-06 22:38:09Z neel $ + +PROG= bhyvebiosload +SRCS= bhyvebiosload.c +NO_MAN= + +DPADD+= ${LIBVMMAPI} +LDADD+= -lvmmapi + +WARNS?= 3 + +CFLAGS+=-I${.CURDIR}/../../sys/boot/userboot -g + +.include <bsd.prog.mk> Added: soc2012/syuu/bhyve-bios/usr.sbin/bhyvebiosload/bhyvebiosload.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ soc2012/syuu/bhyve-bios/usr.sbin/bhyvebiosload/bhyvebiosload.c Thu Jun 14 07:49:22 2012 (r237672) @@ -0,0 +1,626 @@ +/*- + * Copyright (c) 2011 NetApp, Inc. + * 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 NETAPP, INC ``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 NETAPP, INC OR CONTRIBUTORS 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 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. + * + * $FreeBSD: soc2012/syuu/bhyve-bios/usr.sbin/bhyveload/bhyveload.c 234984 2012-04-26 07:52:28Z grehan $ + */ + +/*- + * Copyright (c) 2011 Google, Inc. + * 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 AND CONTRIBUTORS ``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 CONTRIBUTORS 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 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. + * + * $FreeBSD: soc2012/syuu/bhyve-bios/usr.sbin/bhyveload/bhyveload.c 234984 2012-04-26 07:52:28Z grehan $ + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD: soc2012/syuu/bhyve-bios/usr.sbin/bhyveload/bhyveload.c 234984 2012-04-26 07:52:28Z grehan $"); + +#include <sys/ioctl.h> +#include <sys/stat.h> + +#include <machine/specialreg.h> +#include <machine/vmm.h> + +#include <dirent.h> +#include <dlfcn.h> +#include <errno.h> +#include <fcntl.h> +#include <getopt.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <termios.h> +#include <unistd.h> + +#include <vmmapi.h> + +#include "userboot.h" + +#define MB (1024 * 1024UL) +#define GB (1024 * 1024 * 1024UL) +#define BSP 0 + +static char *host_base = "/"; +static struct termios term, oldterm; +static int disk_fd = -1; + +static char *vmname, *progname, *membase; +static uint64_t lowmem, highmem; +static struct vmctx *ctx; + +static uint64_t gdtbase, cr3, rsp; + +static void cb_exit(void *arg, int v); + +/* + * Console i/o callbacks + */ + +#if 0 +static void +cb_putc(void *arg, int ch) +{ + char c = ch; + + write(1, &c, 1); +} + +static int +cb_getc(void *arg) +{ + char c; + + if (read(0, &c, 1) == 1) + return (c); + return (-1); +} + +static int +cb_poll(void *arg) +{ + int n; + + if (ioctl(0, FIONREAD, &n) >= 0) + return (n > 0); + return (0); +} +#endif + +/* + * Host filesystem i/o callbacks + */ + +struct cb_file { + int cf_isdir; + size_t cf_size; + struct stat cf_stat; + union { + int fd; + DIR *dir; + } cf_u; +}; + +static int +cb_open(void *arg, const char *filename, void **hp) +{ + struct stat st; + struct cb_file *cf; + char path[PATH_MAX]; + + if (!host_base) + return (ENOENT); + + strlcpy(path, host_base, PATH_MAX); + if (path[strlen(path) - 1] == '/') + path[strlen(path) - 1] = 0; + strlcat(path, filename, PATH_MAX); + cf = malloc(sizeof(struct cb_file)); + if (stat(path, &cf->cf_stat) < 0) { + free(cf); + return (errno); + } + + cf->cf_size = st.st_size; + if (S_ISDIR(cf->cf_stat.st_mode)) { + cf->cf_isdir = 1; + cf->cf_u.dir = opendir(path); + if (!cf->cf_u.dir) + goto out; + *hp = cf; + return (0); + } + if (S_ISREG(cf->cf_stat.st_mode)) { + cf->cf_isdir = 0; + cf->cf_u.fd = open(path, O_RDONLY); + if (cf->cf_u.fd < 0) + goto out; + *hp = cf; + return (0); + } + +out: + free(cf); + return (EINVAL); +} + +static int +cb_close(void *arg, void *h) +{ + struct cb_file *cf = h; + + if (cf->cf_isdir) + closedir(cf->cf_u.dir); + else + close(cf->cf_u.fd); + free(cf); + + return (0); +} + +#if 0 +static int +cb_isdir(void *arg, void *h) +{ + struct cb_file *cf = h; + + return (cf->cf_isdir); +} +#endif + +static int +cb_read(void *arg, void *h, void *buf, size_t size, size_t *resid) +{ + struct cb_file *cf = h; + ssize_t sz; + + if (cf->cf_isdir) + return (EINVAL); + sz = read(cf->cf_u.fd, buf, size); + if (sz < 0) + return (EINVAL); + *resid = size - sz; + return (0); +} + +#if 0 +static int +cb_readdir(void *arg, void *h, uint32_t *fileno_return, uint8_t *type_return, + size_t *namelen_return, char *name) +{ + struct cb_file *cf = h; + struct dirent *dp; + + if (!cf->cf_isdir) + return (EINVAL); + + dp = readdir(cf->cf_u.dir); + if (!dp) + return (ENOENT); + + /* + * Note: d_namlen is in the range 0..255 and therefore less + * than PATH_MAX so we don't need to test before copying. + */ + *fileno_return = dp->d_fileno; + *type_return = dp->d_type; + *namelen_return = dp->d_namlen; + memcpy(name, dp->d_name, dp->d_namlen); + name[dp->d_namlen] = 0; + + return (0); +} + +static int +cb_seek(void *arg, void *h, uint64_t offset, int whence) +{ + struct cb_file *cf = h; + + if (cf->cf_isdir) + return (EINVAL); + if (lseek(cf->cf_u.fd, offset, whence) < 0) + return (errno); + return (0); +} + +static int +cb_stat(void *arg, void *h, int *mode, int *uid, int *gid, uint64_t *size) +{ + struct cb_file *cf = h; + + *mode = cf->cf_stat.st_mode; + *uid = cf->cf_stat.st_uid; + *gid = cf->cf_stat.st_gid; + *size = cf->cf_stat.st_size; + return (0); +} + +/* + * Disk image i/o callbacks + */ + +static int +cb_diskread(void *arg, int unit, uint64_t from, void *to, size_t size, + size_t *resid) +{ + ssize_t n; + + if (unit != 0 || disk_fd == -1) + return (EIO); + n = pread(disk_fd, to, size, from); + if (n < 0) + return (errno); + *resid = size - n; + return (0); +} +#endif + +/* + * Guest virtual machine i/o callbacks + */ +static int +cb_copyin(void *arg, const void *from, uint64_t to, size_t size) +{ + + to &= 0x7fffffff; + if (to > lowmem) + return (EFAULT); + if (to + size > lowmem) + size = lowmem - to; + + memcpy(&membase[to], from, size); + + return (0); +} + +#if 0 +static int +cb_copyout(void *arg, uint64_t from, void *to, size_t size) +{ + + from &= 0x7fffffff; + if (from > lowmem) + return (EFAULT); + if (from + size > lowmem) + size = lowmem - from; + + memcpy(to, &membase[from], size); + + return (0); +} + +static void +cb_setreg(void *arg, int r, uint64_t v) +{ + int error; + enum vm_reg_name vmreg; + + vmreg = VM_REG_LAST; + + switch (r) { + case 4: + vmreg = VM_REG_GUEST_RSP; + rsp = v; + break; + default: + break; + } + + if (vmreg == VM_REG_LAST) { + printf("test_setreg(%d): not implemented\n", r); + cb_exit(NULL, USERBOOT_EXIT_QUIT); + } + + error = vm_set_register(ctx, BSP, vmreg, v); + if (error) { + perror("vm_set_register"); + cb_exit(NULL, USERBOOT_EXIT_QUIT); + } +} + +static void +cb_setmsr(void *arg, int r, uint64_t v) +{ + int error; + enum vm_reg_name vmreg; + + vmreg = VM_REG_LAST; + + switch (r) { + case MSR_EFER: + vmreg = VM_REG_GUEST_EFER; + break; + default: + break; + } + + if (vmreg == VM_REG_LAST) { + printf("test_setmsr(%d): not implemented\n", r); + cb_exit(NULL, USERBOOT_EXIT_QUIT); + } + + error = vm_set_register(ctx, BSP, vmreg, v); + if (error) { + perror("vm_set_msr"); + cb_exit(NULL, USERBOOT_EXIT_QUIT); + } +} + +static void +cb_setcr(void *arg, int r, uint64_t v) +{ + int error; + enum vm_reg_name vmreg; + + vmreg = VM_REG_LAST; + + switch (r) { + case 0: + vmreg = VM_REG_GUEST_CR0; + break; + case 3: + vmreg = VM_REG_GUEST_CR3; + cr3 = v; + break; + case 4: + vmreg = VM_REG_GUEST_CR4; + break; + default: + break; + } + + if (vmreg == VM_REG_LAST) { + printf("test_setcr(%d): not implemented\n", r); + cb_exit(NULL, USERBOOT_EXIT_QUIT); + } + + error = vm_set_register(ctx, BSP, vmreg, v); + if (error) { + perror("vm_set_cr"); + cb_exit(NULL, USERBOOT_EXIT_QUIT); + } +} +#endif + +static void +cb_setgdt(void *arg, uint64_t base, size_t size) +{ + int error; + + error = vm_set_desc(ctx, BSP, VM_REG_GUEST_GDTR, base, size - 1, 0); + if (error != 0) { + perror("vm_set_desc(gdt)"); + cb_exit(NULL, USERBOOT_EXIT_QUIT); + } + + gdtbase = base; +} + +static void +cb_exec(void *arg, uint64_t rip) +{ + int error; + + error = vm_setup_bios_registers(ctx, BSP, rip, cr3, gdtbase, rsp); + if (error) { + perror("vm_setup_freebsd_registers"); + cb_exit(NULL, USERBOOT_EXIT_QUIT); + } + + cb_exit(NULL, 0); +} + +#if 0 +/* + * Misc + */ + +static void +cb_delay(void *arg, int usec) +{ + + usleep(usec); +} +#endif + +static void +cb_exit(void *arg, int v) +{ + + tcsetattr(0, TCSAFLUSH, &oldterm); + exit(v); +} + +#if 0 +static void +cb_getmem(void *arg, uint64_t *ret_lowmem, uint64_t *ret_highmem) +{ + + *ret_lowmem = lowmem; + *ret_highmem = highmem; +} + +static struct loader_callbacks_v1 cb = { + .getc = cb_getc, + .putc = cb_putc, + .poll = cb_poll, + + .open = cb_open, + .close = cb_close, + .isdir = cb_isdir, + .read = cb_read, + .readdir = cb_readdir, + .seek = cb_seek, + .stat = cb_stat, + + .diskread = cb_diskread, + + .copyin = cb_copyin, + .copyout = cb_copyout, + .setreg = cb_setreg, + .setmsr = cb_setmsr, + .setcr = cb_setcr, + .setgdt = cb_setgdt, + .exec = cb_exec, + + .delay = cb_delay, + .exit = cb_exit, + .getmem = cb_getmem, +}; +#endif + +static void +usage(void) +{ + + printf("usage: %s [-d <disk image path>] [-h <host filesystem path>] " + "[-m <lowmem>][-M <highmem>] " + "<vmname>\n", progname); + exit(1); +} + +int +main(int argc, char** argv) +{ + void *h; + int opt, error; + char *disk_image; + struct cb_file *cf; + char *buf; + size_t res; + uint64_t gdtr[3]; + + progname = argv[0]; + + lowmem = 768 * MB; + highmem = 0; + disk_image = NULL; + + while ((opt = getopt(argc, argv, "d:h:m:M:")) != -1) { + switch (opt) { + case 'd': + disk_image = optarg; + break; + + case 'h': + host_base = optarg; + break; + + case 'm': + lowmem = strtoul(optarg, NULL, 0) * MB; + break; + + case 'M': + highmem = strtoul(optarg, NULL, 0) * MB; + break; + + case '?': + usage(); + } + } + + argc -= optind; + argv += optind; + + if (argc != 1) + usage(); + + vmname = argv[0]; + + error = vm_create(vmname); + if (error != 0 && errno != EEXIST) { + perror("vm_create"); + exit(1); + + } + + ctx = vm_open(vmname); + if (ctx == NULL) { + perror("vm_open"); + exit(1); + } + + error = vm_setup_memory(ctx, 0, lowmem, &membase); + if (error) { + perror("vm_setup_memory(lowmem)"); + exit(1); + } + + if (highmem != 0) { + error = vm_setup_memory(ctx, 4 * GB, highmem, NULL); + if (error) { + perror("vm_setup_memory(highmem)"); + exit(1); + } + } + + tcgetattr(0, &term); + oldterm = term; + term.c_lflag &= ~(ICANON|ECHO); + term.c_iflag &= ~ICRNL; + tcsetattr(0, TCSAFLUSH, &term); + + if (disk_image) { + disk_fd = open(disk_image, O_RDONLY); + } + + if (cb_open(NULL, "/pseudobios.bin", &h)) { + perror("cb_open "); + return (1); + } + cf = h; + buf = malloc(6); + if (cb_read(NULL, cf, buf, 3, &res) != 0 || res != 0) { + fprintf(stderr, "cb_read\n"); + return (1); + } + cb_copyin(NULL, buf, 0x0, 3); + cb_close(NULL, cf); + vm_setup_bios_gdt(gdtr); + cb_copyin(NULL, gdtr, 0x5000, sizeof(gdtr)); + cb_setgdt(NULL, 0x5000, sizeof(gdtr)); + cb_exec(NULL, 0x0); + return (0); +}
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