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 "sysemu/block-backend.h" 12 #include "hw/block/block.h" 13 #include "qemu/error-report.h" 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=... */ 21 dinfo = blk_legacy_dinfo(conf->blk); 22 if (dinfo) { 23 *serial = g_strdup(dinfo->serial); 24 } 25 } 26 } 27 28 void blkconf_geometry(BlockConf *conf, int *ptrans, 29 unsigned cyls_max, unsigned heads_max, unsigned secs_max, 30 Error **errp) 31 { 32 DriveInfo *dinfo; 33 34 if (!conf->cyls && !conf->heads && !conf->secs) { 35 /* try to fall back to value set with legacy -drive cyls=... */ 36 dinfo = blk_legacy_dinfo(conf->blk); 37 if (dinfo) { 38 conf->cyls = dinfo->cyls; 39 conf->heads = dinfo->heads; 40 conf->secs = dinfo->secs; 41 if (ptrans) { 42 *ptrans = dinfo->trans; 43 } 44 } 45 } 46 if (!conf->cyls && !conf->heads && !conf->secs) { 47 hd_geometry_guess(conf->blk, 48 &conf->cyls, &conf->heads, &conf->secs, 49 ptrans); 50 } else if (ptrans && *ptrans == BIOS_ATA_TRANSLATION_AUTO) { 51 *ptrans = hd_bios_chs_auto_trans(conf->cyls, conf->heads, conf->secs); 52 } 53 if (conf->cyls || conf->heads || conf->secs) { 54 if (conf->cyls < 1 || conf->cyls > cyls_max) { 55 error_setg(errp, "cyls must be between 1 and %u", cyls_max); 56 return; 57 } 58 if (conf->heads < 1 || conf->heads > heads_max) { 59 error_setg(errp, "heads must be between 1 and %u", heads_max); 60 return; 61 } 62 if (conf->secs < 1 || conf->secs > secs_max) { 63 error_setg(errp, "secs must be between 1 and %u", secs_max); 64 return; 65 } 66 } 67 } 68