Revision 666daa68 vl.c
| b/vl.c | ||
|---|---|---|
| 140 | 140 |
#include "qemu-char.h" |
| 141 | 141 |
#include "cache-utils.h" |
| 142 | 142 |
#include "block.h" |
| 143 |
#include "block_int.h"
|
|
| 143 |
#include "blockdev.h"
|
|
| 144 | 144 |
#include "block-migration.h" |
| 145 | 145 |
#include "dma.h" |
| 146 | 146 |
#include "audio/audio.h" |
| ... | ... | |
| 172 | 172 |
|
| 173 | 173 |
static const char *data_dir; |
| 174 | 174 |
const char *bios_name = NULL; |
| 175 |
struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives); |
|
| 176 | 175 |
enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB; |
| 177 | 176 |
DisplayType display_type = DT_DEFAULT; |
| 178 | 177 |
const char* keyboard_layout = NULL; |
| ... | ... | |
| 651 | 650 |
#define MTD_ALIAS "if=mtd" |
| 652 | 651 |
#define SD_ALIAS "index=0,if=sd" |
| 653 | 652 |
|
| 654 |
QemuOpts *drive_add(const char *file, const char *fmt, ...) |
|
| 655 |
{
|
|
| 656 |
va_list ap; |
|
| 657 |
char optstr[1024]; |
|
| 658 |
QemuOpts *opts; |
|
| 659 |
|
|
| 660 |
va_start(ap, fmt); |
|
| 661 |
vsnprintf(optstr, sizeof(optstr), fmt, ap); |
|
| 662 |
va_end(ap); |
|
| 663 |
|
|
| 664 |
opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0); |
|
| 665 |
if (!opts) {
|
|
| 666 |
return NULL; |
|
| 667 |
} |
|
| 668 |
if (file) |
|
| 669 |
qemu_opt_set(opts, "file", file); |
|
| 670 |
return opts; |
|
| 671 |
} |
|
| 672 |
|
|
| 673 |
DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit) |
|
| 674 |
{
|
|
| 675 |
DriveInfo *dinfo; |
|
| 676 |
|
|
| 677 |
/* seek interface, bus and unit */ |
|
| 678 |
|
|
| 679 |
QTAILQ_FOREACH(dinfo, &drives, next) {
|
|
| 680 |
if (dinfo->type == type && |
|
| 681 |
dinfo->bus == bus && |
|
| 682 |
dinfo->unit == unit) |
|
| 683 |
return dinfo; |
|
| 684 |
} |
|
| 685 |
|
|
| 686 |
return NULL; |
|
| 687 |
} |
|
| 688 |
|
|
| 689 |
DriveInfo *drive_get_by_id(const char *id) |
|
| 690 |
{
|
|
| 691 |
DriveInfo *dinfo; |
|
| 692 |
|
|
| 693 |
QTAILQ_FOREACH(dinfo, &drives, next) {
|
|
| 694 |
if (strcmp(id, dinfo->id)) |
|
| 695 |
continue; |
|
| 696 |
return dinfo; |
|
| 697 |
} |
|
| 698 |
return NULL; |
|
| 699 |
} |
|
| 700 |
|
|
| 701 |
int drive_get_max_bus(BlockInterfaceType type) |
|
| 702 |
{
|
|
| 703 |
int max_bus; |
|
| 704 |
DriveInfo *dinfo; |
|
| 705 |
|
|
| 706 |
max_bus = -1; |
|
| 707 |
QTAILQ_FOREACH(dinfo, &drives, next) {
|
|
| 708 |
if(dinfo->type == type && |
|
| 709 |
dinfo->bus > max_bus) |
|
| 710 |
max_bus = dinfo->bus; |
|
| 711 |
} |
|
| 712 |
return max_bus; |
|
| 713 |
} |
|
| 714 |
|
|
| 715 |
const char *drive_get_serial(BlockDriverState *bdrv) |
|
| 716 |
{
|
|
| 717 |
DriveInfo *dinfo; |
|
| 718 |
|
|
| 719 |
QTAILQ_FOREACH(dinfo, &drives, next) {
|
|
| 720 |
if (dinfo->bdrv == bdrv) |
|
| 721 |
return dinfo->serial; |
|
| 722 |
} |
|
| 723 |
|
|
| 724 |
return "\0"; |
|
| 725 |
} |
|
| 726 |
|
|
| 727 |
BlockInterfaceErrorAction drive_get_on_error( |
|
| 728 |
BlockDriverState *bdrv, int is_read) |
|
| 729 |
{
|
|
| 730 |
DriveInfo *dinfo; |
|
| 731 |
|
|
| 732 |
QTAILQ_FOREACH(dinfo, &drives, next) {
|
|
| 733 |
if (dinfo->bdrv == bdrv) |
|
| 734 |
return is_read ? dinfo->on_read_error : dinfo->on_write_error; |
|
| 735 |
} |
|
| 736 |
|
|
| 737 |
return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC; |
|
| 738 |
} |
|
| 739 |
|
|
| 740 |
static void bdrv_format_print(void *opaque, const char *name) |
|
| 741 |
{
|
|
| 742 |
fprintf(stderr, " %s", name); |
|
| 743 |
} |
|
| 744 |
|
|
| 745 |
void drive_uninit(DriveInfo *dinfo) |
|
| 746 |
{
|
|
| 747 |
qemu_opts_del(dinfo->opts); |
|
| 748 |
bdrv_delete(dinfo->bdrv); |
|
| 749 |
QTAILQ_REMOVE(&drives, dinfo, next); |
|
| 750 |
qemu_free(dinfo); |
|
| 751 |
} |
|
| 752 |
|
|
| 753 |
static int parse_block_error_action(const char *buf, int is_read) |
|
| 754 |
{
|
|
| 755 |
if (!strcmp(buf, "ignore")) {
|
|
| 756 |
return BLOCK_ERR_IGNORE; |
|
| 757 |
} else if (!is_read && !strcmp(buf, "enospc")) {
|
|
| 758 |
return BLOCK_ERR_STOP_ENOSPC; |
|
| 759 |
} else if (!strcmp(buf, "stop")) {
|
|
| 760 |
return BLOCK_ERR_STOP_ANY; |
|
| 761 |
} else if (!strcmp(buf, "report")) {
|
|
| 762 |
return BLOCK_ERR_REPORT; |
|
| 763 |
} else {
|
|
| 764 |
fprintf(stderr, "qemu: '%s' invalid %s error action\n", |
|
| 765 |
buf, is_read ? "read" : "write"); |
|
| 766 |
return -1; |
|
| 767 |
} |
|
| 768 |
} |
|
| 769 |
|
|
| 770 |
DriveInfo *drive_init(QemuOpts *opts, int default_to_scsi, int *fatal_error) |
|
| 771 |
{
|
|
| 772 |
const char *buf; |
|
| 773 |
const char *file = NULL; |
|
| 774 |
char devname[128]; |
|
| 775 |
const char *serial; |
|
| 776 |
const char *mediastr = ""; |
|
| 777 |
BlockInterfaceType type; |
|
| 778 |
enum { MEDIA_DISK, MEDIA_CDROM } media;
|
|
| 779 |
int bus_id, unit_id; |
|
| 780 |
int cyls, heads, secs, translation; |
|
| 781 |
BlockDriver *drv = NULL; |
|
| 782 |
int max_devs; |
|
| 783 |
int index; |
|
| 784 |
int ro = 0; |
|
| 785 |
int bdrv_flags = 0; |
|
| 786 |
int on_read_error, on_write_error; |
|
| 787 |
const char *devaddr; |
|
| 788 |
DriveInfo *dinfo; |
|
| 789 |
int snapshot = 0; |
|
| 790 |
int ret; |
|
| 791 |
|
|
| 792 |
*fatal_error = 1; |
|
| 793 |
|
|
| 794 |
translation = BIOS_ATA_TRANSLATION_AUTO; |
|
| 795 |
|
|
| 796 |
if (default_to_scsi) {
|
|
| 797 |
type = IF_SCSI; |
|
| 798 |
max_devs = MAX_SCSI_DEVS; |
|
| 799 |
pstrcpy(devname, sizeof(devname), "scsi"); |
|
| 800 |
} else {
|
|
| 801 |
type = IF_IDE; |
|
| 802 |
max_devs = MAX_IDE_DEVS; |
|
| 803 |
pstrcpy(devname, sizeof(devname), "ide"); |
|
| 804 |
} |
|
| 805 |
media = MEDIA_DISK; |
|
| 806 |
|
|
| 807 |
/* extract parameters */ |
|
| 808 |
bus_id = qemu_opt_get_number(opts, "bus", 0); |
|
| 809 |
unit_id = qemu_opt_get_number(opts, "unit", -1); |
|
| 810 |
index = qemu_opt_get_number(opts, "index", -1); |
|
| 811 |
|
|
| 812 |
cyls = qemu_opt_get_number(opts, "cyls", 0); |
|
| 813 |
heads = qemu_opt_get_number(opts, "heads", 0); |
|
| 814 |
secs = qemu_opt_get_number(opts, "secs", 0); |
|
| 815 |
|
|
| 816 |
snapshot = qemu_opt_get_bool(opts, "snapshot", 0); |
|
| 817 |
ro = qemu_opt_get_bool(opts, "readonly", 0); |
|
| 818 |
|
|
| 819 |
file = qemu_opt_get(opts, "file"); |
|
| 820 |
serial = qemu_opt_get(opts, "serial"); |
|
| 821 |
|
|
| 822 |
if ((buf = qemu_opt_get(opts, "if")) != NULL) {
|
|
| 823 |
pstrcpy(devname, sizeof(devname), buf); |
|
| 824 |
if (!strcmp(buf, "ide")) {
|
|
| 825 |
type = IF_IDE; |
|
| 826 |
max_devs = MAX_IDE_DEVS; |
|
| 827 |
} else if (!strcmp(buf, "scsi")) {
|
|
| 828 |
type = IF_SCSI; |
|
| 829 |
max_devs = MAX_SCSI_DEVS; |
|
| 830 |
} else if (!strcmp(buf, "floppy")) {
|
|
| 831 |
type = IF_FLOPPY; |
|
| 832 |
max_devs = 0; |
|
| 833 |
} else if (!strcmp(buf, "pflash")) {
|
|
| 834 |
type = IF_PFLASH; |
|
| 835 |
max_devs = 0; |
|
| 836 |
} else if (!strcmp(buf, "mtd")) {
|
|
| 837 |
type = IF_MTD; |
|
| 838 |
max_devs = 0; |
|
| 839 |
} else if (!strcmp(buf, "sd")) {
|
|
| 840 |
type = IF_SD; |
|
| 841 |
max_devs = 0; |
|
| 842 |
} else if (!strcmp(buf, "virtio")) {
|
|
| 843 |
type = IF_VIRTIO; |
|
| 844 |
max_devs = 0; |
|
| 845 |
} else if (!strcmp(buf, "xen")) {
|
|
| 846 |
type = IF_XEN; |
|
| 847 |
max_devs = 0; |
|
| 848 |
} else if (!strcmp(buf, "none")) {
|
|
| 849 |
type = IF_NONE; |
|
| 850 |
max_devs = 0; |
|
| 851 |
} else {
|
|
| 852 |
fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf); |
|
| 853 |
return NULL; |
|
| 854 |
} |
|
| 855 |
} |
|
| 856 |
|
|
| 857 |
if (cyls || heads || secs) {
|
|
| 858 |
if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
|
|
| 859 |
fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf); |
|
| 860 |
return NULL; |
|
| 861 |
} |
|
| 862 |
if (heads < 1 || (type == IF_IDE && heads > 16)) {
|
|
| 863 |
fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf); |
|
| 864 |
return NULL; |
|
| 865 |
} |
|
| 866 |
if (secs < 1 || (type == IF_IDE && secs > 63)) {
|
|
| 867 |
fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf); |
|
| 868 |
return NULL; |
|
| 869 |
} |
|
| 870 |
} |
|
| 871 |
|
|
| 872 |
if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
|
|
| 873 |
if (!cyls) {
|
|
| 874 |
fprintf(stderr, |
|
| 875 |
"qemu: '%s' trans must be used with cyls,heads and secs\n", |
|
| 876 |
buf); |
|
| 877 |
return NULL; |
|
| 878 |
} |
|
| 879 |
if (!strcmp(buf, "none")) |
|
| 880 |
translation = BIOS_ATA_TRANSLATION_NONE; |
|
| 881 |
else if (!strcmp(buf, "lba")) |
|
| 882 |
translation = BIOS_ATA_TRANSLATION_LBA; |
|
| 883 |
else if (!strcmp(buf, "auto")) |
|
| 884 |
translation = BIOS_ATA_TRANSLATION_AUTO; |
|
| 885 |
else {
|
|
| 886 |
fprintf(stderr, "qemu: '%s' invalid translation type\n", buf); |
|
| 887 |
return NULL; |
|
| 888 |
} |
|
| 889 |
} |
|
| 890 |
|
|
| 891 |
if ((buf = qemu_opt_get(opts, "media")) != NULL) {
|
|
| 892 |
if (!strcmp(buf, "disk")) {
|
|
| 893 |
media = MEDIA_DISK; |
|
| 894 |
} else if (!strcmp(buf, "cdrom")) {
|
|
| 895 |
if (cyls || secs || heads) {
|
|
| 896 |
fprintf(stderr, |
|
| 897 |
"qemu: '%s' invalid physical CHS format\n", buf); |
|
| 898 |
return NULL; |
|
| 899 |
} |
|
| 900 |
media = MEDIA_CDROM; |
|
| 901 |
} else {
|
|
| 902 |
fprintf(stderr, "qemu: '%s' invalid media\n", buf); |
|
| 903 |
return NULL; |
|
| 904 |
} |
|
| 905 |
} |
|
| 906 |
|
|
| 907 |
if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
|
|
| 908 |
if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
|
|
| 909 |
bdrv_flags |= BDRV_O_NOCACHE; |
|
| 910 |
} else if (!strcmp(buf, "writeback")) {
|
|
| 911 |
bdrv_flags |= BDRV_O_CACHE_WB; |
|
| 912 |
} else if (!strcmp(buf, "unsafe")) {
|
|
| 913 |
bdrv_flags |= BDRV_O_CACHE_WB; |
|
| 914 |
bdrv_flags |= BDRV_O_NO_FLUSH; |
|
| 915 |
} else if (!strcmp(buf, "writethrough")) {
|
|
| 916 |
/* this is the default */ |
|
| 917 |
} else {
|
|
| 918 |
fprintf(stderr, "qemu: invalid cache option\n"); |
|
| 919 |
return NULL; |
|
| 920 |
} |
|
| 921 |
} |
|
| 922 |
|
|
| 923 |
#ifdef CONFIG_LINUX_AIO |
|
| 924 |
if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
|
|
| 925 |
if (!strcmp(buf, "native")) {
|
|
| 926 |
bdrv_flags |= BDRV_O_NATIVE_AIO; |
|
| 927 |
} else if (!strcmp(buf, "threads")) {
|
|
| 928 |
/* this is the default */ |
|
| 929 |
} else {
|
|
| 930 |
fprintf(stderr, "qemu: invalid aio option\n"); |
|
| 931 |
return NULL; |
|
| 932 |
} |
|
| 933 |
} |
|
| 934 |
#endif |
|
| 935 |
|
|
| 936 |
if ((buf = qemu_opt_get(opts, "format")) != NULL) {
|
|
| 937 |
if (strcmp(buf, "?") == 0) {
|
|
| 938 |
fprintf(stderr, "qemu: Supported formats:"); |
|
| 939 |
bdrv_iterate_format(bdrv_format_print, NULL); |
|
| 940 |
fprintf(stderr, "\n"); |
|
| 941 |
return NULL; |
|
| 942 |
} |
|
| 943 |
drv = bdrv_find_whitelisted_format(buf); |
|
| 944 |
if (!drv) {
|
|
| 945 |
fprintf(stderr, "qemu: '%s' invalid format\n", buf); |
|
| 946 |
return NULL; |
|
| 947 |
} |
|
| 948 |
} |
|
| 949 |
|
|
| 950 |
on_write_error = BLOCK_ERR_STOP_ENOSPC; |
|
| 951 |
if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
|
|
| 952 |
if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
|
|
| 953 |
fprintf(stderr, "werror is no supported by this format\n"); |
|
| 954 |
return NULL; |
|
| 955 |
} |
|
| 956 |
|
|
| 957 |
on_write_error = parse_block_error_action(buf, 0); |
|
| 958 |
if (on_write_error < 0) {
|
|
| 959 |
return NULL; |
|
| 960 |
} |
|
| 961 |
} |
|
| 962 |
|
|
| 963 |
on_read_error = BLOCK_ERR_REPORT; |
|
| 964 |
if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
|
|
| 965 |
if (type != IF_IDE && type != IF_VIRTIO && type != IF_NONE) {
|
|
| 966 |
fprintf(stderr, "rerror is no supported by this format\n"); |
|
| 967 |
return NULL; |
|
| 968 |
} |
|
| 969 |
|
|
| 970 |
on_read_error = parse_block_error_action(buf, 1); |
|
| 971 |
if (on_read_error < 0) {
|
|
| 972 |
return NULL; |
|
| 973 |
} |
|
| 974 |
} |
|
| 975 |
|
|
| 976 |
if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
|
|
| 977 |
if (type != IF_VIRTIO) {
|
|
| 978 |
fprintf(stderr, "addr is not supported\n"); |
|
| 979 |
return NULL; |
|
| 980 |
} |
|
| 981 |
} |
|
| 982 |
|
|
| 983 |
/* compute bus and unit according index */ |
|
| 984 |
|
|
| 985 |
if (index != -1) {
|
|
| 986 |
if (bus_id != 0 || unit_id != -1) {
|
|
| 987 |
fprintf(stderr, |
|
| 988 |
"qemu: index cannot be used with bus and unit\n"); |
|
| 989 |
return NULL; |
|
| 990 |
} |
|
| 991 |
if (max_devs == 0) |
|
| 992 |
{
|
|
| 993 |
unit_id = index; |
|
| 994 |
bus_id = 0; |
|
| 995 |
} else {
|
|
| 996 |
unit_id = index % max_devs; |
|
| 997 |
bus_id = index / max_devs; |
|
| 998 |
} |
|
| 999 |
} |
|
| 1000 |
|
|
| 1001 |
/* if user doesn't specify a unit_id, |
|
| 1002 |
* try to find the first free |
|
| 1003 |
*/ |
|
| 1004 |
|
|
| 1005 |
if (unit_id == -1) {
|
|
| 1006 |
unit_id = 0; |
|
| 1007 |
while (drive_get(type, bus_id, unit_id) != NULL) {
|
|
| 1008 |
unit_id++; |
|
| 1009 |
if (max_devs && unit_id >= max_devs) {
|
|
| 1010 |
unit_id -= max_devs; |
|
| 1011 |
bus_id++; |
|
| 1012 |
} |
|
| 1013 |
} |
|
| 1014 |
} |
|
| 1015 |
|
|
| 1016 |
/* check unit id */ |
|
| 1017 |
|
|
| 1018 |
if (max_devs && unit_id >= max_devs) {
|
|
| 1019 |
fprintf(stderr, "qemu: unit %d too big (max is %d)\n", |
|
| 1020 |
unit_id, max_devs - 1); |
|
| 1021 |
return NULL; |
|
| 1022 |
} |
|
| 1023 |
|
|
| 1024 |
/* |
|
| 1025 |
* ignore multiple definitions |
|
| 1026 |
*/ |
|
| 1027 |
|
|
| 1028 |
if (drive_get(type, bus_id, unit_id) != NULL) {
|
|
| 1029 |
*fatal_error = 0; |
|
| 1030 |
return NULL; |
|
| 1031 |
} |
|
| 1032 |
|
|
| 1033 |
/* init */ |
|
| 1034 |
|
|
| 1035 |
dinfo = qemu_mallocz(sizeof(*dinfo)); |
|
| 1036 |
if ((buf = qemu_opts_id(opts)) != NULL) {
|
|
| 1037 |
dinfo->id = qemu_strdup(buf); |
|
| 1038 |
} else {
|
|
| 1039 |
/* no id supplied -> create one */ |
|
| 1040 |
dinfo->id = qemu_mallocz(32); |
|
| 1041 |
if (type == IF_IDE || type == IF_SCSI) |
|
| 1042 |
mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd"; |
|
| 1043 |
if (max_devs) |
|
| 1044 |
snprintf(dinfo->id, 32, "%s%i%s%i", |
|
| 1045 |
devname, bus_id, mediastr, unit_id); |
|
| 1046 |
else |
|
| 1047 |
snprintf(dinfo->id, 32, "%s%s%i", |
|
| 1048 |
devname, mediastr, unit_id); |
|
| 1049 |
} |
|
| 1050 |
dinfo->bdrv = bdrv_new(dinfo->id); |
|
| 1051 |
dinfo->devaddr = devaddr; |
|
| 1052 |
dinfo->type = type; |
|
| 1053 |
dinfo->bus = bus_id; |
|
| 1054 |
dinfo->unit = unit_id; |
|
| 1055 |
dinfo->on_read_error = on_read_error; |
|
| 1056 |
dinfo->on_write_error = on_write_error; |
|
| 1057 |
dinfo->opts = opts; |
|
| 1058 |
if (serial) |
|
| 1059 |
strncpy(dinfo->serial, serial, sizeof(serial)); |
|
| 1060 |
QTAILQ_INSERT_TAIL(&drives, dinfo, next); |
|
| 1061 |
|
|
| 1062 |
switch(type) {
|
|
| 1063 |
case IF_IDE: |
|
| 1064 |
case IF_SCSI: |
|
| 1065 |
case IF_XEN: |
|
| 1066 |
case IF_NONE: |
|
| 1067 |
switch(media) {
|
|
| 1068 |
case MEDIA_DISK: |
|
| 1069 |
if (cyls != 0) {
|
|
| 1070 |
bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs); |
|
| 1071 |
bdrv_set_translation_hint(dinfo->bdrv, translation); |
|
| 1072 |
} |
|
| 1073 |
break; |
|
| 1074 |
case MEDIA_CDROM: |
|
| 1075 |
bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM); |
|
| 1076 |
break; |
|
| 1077 |
} |
|
| 1078 |
break; |
|
| 1079 |
case IF_SD: |
|
| 1080 |
/* FIXME: This isn't really a floppy, but it's a reasonable |
|
| 1081 |
approximation. */ |
|
| 1082 |
case IF_FLOPPY: |
|
| 1083 |
bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY); |
|
| 1084 |
break; |
|
| 1085 |
case IF_PFLASH: |
|
| 1086 |
case IF_MTD: |
|
| 1087 |
break; |
|
| 1088 |
case IF_VIRTIO: |
|
| 1089 |
/* add virtio block device */ |
|
| 1090 |
opts = qemu_opts_create(&qemu_device_opts, NULL, 0); |
|
| 1091 |
qemu_opt_set(opts, "driver", "virtio-blk-pci"); |
|
| 1092 |
qemu_opt_set(opts, "drive", dinfo->id); |
|
| 1093 |
if (devaddr) |
|
| 1094 |
qemu_opt_set(opts, "addr", devaddr); |
|
| 1095 |
break; |
|
| 1096 |
case IF_COUNT: |
|
| 1097 |
abort(); |
|
| 1098 |
} |
|
| 1099 |
if (!file) {
|
|
| 1100 |
*fatal_error = 0; |
|
| 1101 |
return NULL; |
|
| 1102 |
} |
|
| 1103 |
if (snapshot) {
|
|
| 1104 |
/* always use cache=unsafe with snapshot */ |
|
| 1105 |
bdrv_flags &= ~BDRV_O_CACHE_MASK; |
|
| 1106 |
bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH); |
|
| 1107 |
} |
|
| 1108 |
|
|
| 1109 |
if (media == MEDIA_CDROM) {
|
|
| 1110 |
/* CDROM is fine for any interface, don't check. */ |
|
| 1111 |
ro = 1; |
|
| 1112 |
} else if (ro == 1) {
|
|
| 1113 |
if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {
|
|
| 1114 |
fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n"); |
|
| 1115 |
return NULL; |
|
| 1116 |
} |
|
| 1117 |
} |
|
| 1118 |
|
|
| 1119 |
bdrv_flags |= ro ? 0 : BDRV_O_RDWR; |
|
| 1120 |
|
|
| 1121 |
ret = bdrv_open(dinfo->bdrv, file, bdrv_flags, drv); |
|
| 1122 |
if (ret < 0) {
|
|
| 1123 |
fprintf(stderr, "qemu: could not open disk image %s: %s\n", |
|
| 1124 |
file, strerror(-ret)); |
|
| 1125 |
return NULL; |
|
| 1126 |
} |
|
| 1127 |
|
|
| 1128 |
if (bdrv_key_required(dinfo->bdrv)) |
|
| 1129 |
autostart = 0; |
|
| 1130 |
*fatal_error = 0; |
|
| 1131 |
return dinfo; |
|
| 1132 |
} |
|
| 1133 |
|
|
| 1134 | 653 |
static int drive_init_func(QemuOpts *opts, void *opaque) |
| 1135 | 654 |
{
|
| 1136 | 655 |
int *use_scsi = opaque; |
Also available in: Unified diff