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 10 #include "sysemu/blockdev.h" 11 #include "hw/block/block.h" 12 #include "qemu/error-report.h" 13 14 void blkconf_serial(BlockConf *conf, char **serial) 15 { 16 DriveInfo *dinfo; 17 18 if (!*serial) { 19 /* try to fall back to value set with legacy -drive serial=... */ 20 dinfo = drive_get_by_blockdev(conf->bs); 21 *serial = g_strdup(dinfo->serial); 22 } 23 } 24 25 void blkconf_geometry(BlockConf *conf, int *ptrans, 26 unsigned cyls_max, unsigned heads_max, unsigned secs_max, 27 Error **errp) 28 { 29 DriveInfo *dinfo; 30 31 if (!conf->cyls && !conf->heads && !conf->secs) { 32 /* try to fall back to value set with legacy -drive cyls=... */ 33 dinfo = drive_get_by_blockdev(conf->bs); 34 conf->cyls = dinfo->cyls; 35 conf->heads = dinfo->heads; 36 conf->secs = dinfo->secs; 37 if (ptrans) { 38 *ptrans = dinfo->trans; 39 } 40 } 41 if (!conf->cyls && !conf->heads && !conf->secs) { 42 hd_geometry_guess(conf->bs, 43 &conf->cyls, &conf->heads, &conf->secs, 44 ptrans); 45 } else if (ptrans && *ptrans == BIOS_ATA_TRANSLATION_AUTO) { 46 *ptrans = hd_bios_chs_auto_trans(conf->cyls, conf->heads, conf->secs); 47 } 48 if (conf->cyls || conf->heads || conf->secs) { 49 if (conf->cyls < 1 || conf->cyls > cyls_max) { 50 error_setg(errp, "cyls must be between 1 and %u", cyls_max); 51 return; 52 } 53 if (conf->heads < 1 || conf->heads > heads_max) { 54 error_setg(errp, "heads must be between 1 and %u", heads_max); 55 return; 56 } 57 if (conf->secs < 1 || conf->secs > secs_max) { 58 error_setg(errp, "secs must be between 1 and %u", secs_max); 59 return; 60 } 61 } 62 } 63