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 int blkconf_geometry(BlockConf *conf, int *ptrans, 26 unsigned cyls_max, unsigned heads_max, unsigned secs_max) 27 { 28 DriveInfo *dinfo; 29 30 if (!conf->cyls && !conf->heads && !conf->secs) { 31 /* try to fall back to value set with legacy -drive cyls=... */ 32 dinfo = drive_get_by_blockdev(conf->bs); 33 conf->cyls = dinfo->cyls; 34 conf->heads = dinfo->heads; 35 conf->secs = dinfo->secs; 36 if (ptrans) { 37 *ptrans = dinfo->trans; 38 } 39 } 40 if (!conf->cyls && !conf->heads && !conf->secs) { 41 hd_geometry_guess(conf->bs, 42 &conf->cyls, &conf->heads, &conf->secs, 43 ptrans); 44 } else if (ptrans && *ptrans == BIOS_ATA_TRANSLATION_AUTO) { 45 *ptrans = hd_bios_chs_auto_trans(conf->cyls, conf->heads, conf->secs); 46 } 47 if (conf->cyls || conf->heads || conf->secs) { 48 if (conf->cyls < 1 || conf->cyls > cyls_max) { 49 error_report("cyls must be between 1 and %u", cyls_max); 50 return -1; 51 } 52 if (conf->heads < 1 || conf->heads > heads_max) { 53 error_report("heads must be between 1 and %u", heads_max); 54 return -1; 55 } 56 if (conf->secs < 1 || conf->secs > secs_max) { 57 error_report("secs must be between 1 and %u", secs_max); 58 return -1; 59 } 60 } 61 return 0; 62 } 63