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911525db MA |
1 | /* |
2 | * Common code for block device models | |
3 | * | |
4 | * Copyright (C) 2012 Red Hat, Inc. | |
5 | * | |
6 | * This work is licensed under the terms of the GNU GPL, version 2 or | |
7 | * later. See the COPYING file in the top-level directory. | |
8 | */ | |
9 | ||
9c17d615 | 10 | #include "sysemu/blockdev.h" |
4be74634 | 11 | #include "sysemu/block-backend.h" |
0d09e41a | 12 | #include "hw/block/block.h" |
1de7afc9 | 13 | #include "qemu/error-report.h" |
911525db MA |
14 | |
15 | void blkconf_serial(BlockConf *conf, char **serial) | |
16 | { | |
17 | DriveInfo *dinfo; | |
18 | ||
19 | if (!*serial) { | |
20 | /* try to fall back to value set with legacy -drive serial=... */ | |
4be74634 | 21 | dinfo = blk_legacy_dinfo(conf->blk); |
c64f50d1 | 22 | *serial = g_strdup(dinfo->serial); |
911525db MA |
23 | } |
24 | } | |
b7eb0c9f | 25 | |
5ff5efb4 FZ |
26 | void blkconf_geometry(BlockConf *conf, int *ptrans, |
27 | unsigned cyls_max, unsigned heads_max, unsigned secs_max, | |
28 | Error **errp) | |
b7eb0c9f MA |
29 | { |
30 | DriveInfo *dinfo; | |
31 | ||
32 | if (!conf->cyls && !conf->heads && !conf->secs) { | |
33 | /* try to fall back to value set with legacy -drive cyls=... */ | |
4be74634 | 34 | dinfo = blk_legacy_dinfo(conf->blk); |
b7eb0c9f MA |
35 | conf->cyls = dinfo->cyls; |
36 | conf->heads = dinfo->heads; | |
37 | conf->secs = dinfo->secs; | |
38 | if (ptrans) { | |
39 | *ptrans = dinfo->trans; | |
40 | } | |
41 | } | |
42 | if (!conf->cyls && !conf->heads && !conf->secs) { | |
4be74634 | 43 | hd_geometry_guess(conf->blk, |
b7eb0c9f MA |
44 | &conf->cyls, &conf->heads, &conf->secs, |
45 | ptrans); | |
46 | } else if (ptrans && *ptrans == BIOS_ATA_TRANSLATION_AUTO) { | |
47 | *ptrans = hd_bios_chs_auto_trans(conf->cyls, conf->heads, conf->secs); | |
48 | } | |
49 | if (conf->cyls || conf->heads || conf->secs) { | |
50 | if (conf->cyls < 1 || conf->cyls > cyls_max) { | |
5ff5efb4 FZ |
51 | error_setg(errp, "cyls must be between 1 and %u", cyls_max); |
52 | return; | |
b7eb0c9f MA |
53 | } |
54 | if (conf->heads < 1 || conf->heads > heads_max) { | |
5ff5efb4 FZ |
55 | error_setg(errp, "heads must be between 1 and %u", heads_max); |
56 | return; | |
b7eb0c9f MA |
57 | } |
58 | if (conf->secs < 1 || conf->secs > secs_max) { | |
5ff5efb4 FZ |
59 | error_setg(errp, "secs must be between 1 and %u", secs_max); |
60 | return; | |
b7eb0c9f MA |
61 | } |
62 | } | |
b7eb0c9f | 63 | } |