From patchwork Mon Dec 6 13:54:47 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gleb Natapov X-Patchwork-Id: 378272 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id oB6DtDix005911 for ; Mon, 6 Dec 2010 13:55:13 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752904Ab0LFNzB (ORCPT ); Mon, 6 Dec 2010 08:55:01 -0500 Received: from mx1.redhat.com ([209.132.183.28]:39714 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752512Ab0LFNy4 (ORCPT ); Mon, 6 Dec 2010 08:54:56 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id oB6Dspvp026492 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 6 Dec 2010 08:54:51 -0500 Received: from dhcp-1-237.tlv.redhat.com (dhcp-1-237.tlv.redhat.com [10.35.1.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id oB6Dsnws001338; Mon, 6 Dec 2010 08:54:51 -0500 Received: by dhcp-1-237.tlv.redhat.com (Postfix, from userid 13519) id 67AFC18D3AD; Mon, 6 Dec 2010 15:54:48 +0200 (IST) From: Gleb Natapov To: qemu-devel@nongnu.org Cc: kvm@vger.kernel.org, blauwirbel@gmail.com, anthony@codemonkey.ws, kevin@koconnor.net Subject: [PATCHv7 16/16] Pass boot device list to firmware. Date: Mon, 6 Dec 2010 15:54:47 +0200 Message-Id: <1291643687-32232-17-git-send-email-gleb@redhat.com> In-Reply-To: <1291643687-32232-1-git-send-email-gleb@redhat.com> References: <1291643687-32232-1-git-send-email-gleb@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Mon, 06 Dec 2010 13:55:13 +0000 (UTC) diff --git a/hw/fw_cfg.c b/hw/fw_cfg.c index 7b9434f..20a816f 100644 --- a/hw/fw_cfg.c +++ b/hw/fw_cfg.c @@ -53,6 +53,7 @@ struct FWCfgState { FWCfgFiles *files; uint16_t cur_entry; uint32_t cur_offset; + Notifier machine_ready; }; static void fw_cfg_write(FWCfgState *s, uint8_t value) @@ -315,6 +316,15 @@ int fw_cfg_add_file(FWCfgState *s, const char *filename, uint8_t *data, return 1; } +static void fw_cfg_machine_ready(struct Notifier* n) +{ + uint32_t len; + FWCfgState *s = container_of(n, FWCfgState, machine_ready); + char *bootindex = get_boot_devices_list(&len); + + fw_cfg_add_file(s, "bootorder", (uint8_t*)bootindex, len); +} + FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port, target_phys_addr_t ctl_addr, target_phys_addr_t data_addr) { @@ -343,6 +353,10 @@ FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port, fw_cfg_add_i16(s, FW_CFG_MAX_CPUS, (uint16_t)max_cpus); fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)boot_menu); + + s->machine_ready.notify = fw_cfg_machine_ready; + qemu_add_machine_init_done_notifier(&s->machine_ready); + return s; } diff --git a/sysemu.h b/sysemu.h index c42f33a..38a20a3 100644 --- a/sysemu.h +++ b/sysemu.h @@ -196,4 +196,5 @@ void register_devices(void); void add_boot_device_path(int32_t bootindex, DeviceState *dev, const char *suffix); +char *get_boot_devices_list(uint32_t *size); #endif diff --git a/vl.c b/vl.c index 0d20d26..c4d3fc0 100644 --- a/vl.c +++ b/vl.c @@ -736,6 +736,54 @@ void add_boot_device_path(int32_t bootindex, DeviceState *dev, QTAILQ_INSERT_TAIL(&fw_boot_order, node, link); } +/* + * This function returns null terminated string that consist of new line + * separated device pathes. + * + * memory pointed by "size" is assigned total length of the array in bytes + * + */ +char *get_boot_devices_list(uint32_t *size) +{ + FWBootEntry *i; + uint32_t total = 0; + char *list = NULL; + + QTAILQ_FOREACH(i, &fw_boot_order, link) { + char *devpath = NULL, *bootpath; + int len; + + if (i->dev) { + devpath = qdev_get_fw_dev_path(i->dev); + assert(devpath); + } + + if (i->suffix && devpath) { + bootpath = qemu_malloc(strlen(devpath) + strlen(i->suffix) + 1); + sprintf(bootpath, "%s%s", devpath, i->suffix); + qemu_free(devpath); + } else if (devpath) { + bootpath = devpath; + } else { + bootpath = strdup(i->suffix); + assert(bootpath); + } + + if (total) { + list[total-1] = '\n'; + } + len = strlen(bootpath) + 1; + list = qemu_realloc(list, total + len); + memcpy(&list[total], bootpath, len); + total += len; + qemu_free(bootpath); + } + + *size = total; + + return list; +} + static void numa_add(const char *optarg) { char option[128];