From patchwork Wed Dec 8 11:35:09 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gleb Natapov X-Patchwork-Id: 74682 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 64369B6EF1 for ; Wed, 8 Dec 2010 22:41:56 +1100 (EST) Received: from localhost ([127.0.0.1]:53551 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PQIPB-0007yL-CN for incoming@patchwork.ozlabs.org; Wed, 08 Dec 2010 06:41:53 -0500 Received: from [140.186.70.92] (port=55872 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PQIIp-0005Y2-Pw for qemu-devel@nongnu.org; Wed, 08 Dec 2010 06:35:27 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PQIIn-0007NO-Lb for qemu-devel@nongnu.org; Wed, 08 Dec 2010 06:35:19 -0500 Received: from mx1.redhat.com ([209.132.183.28]:4095) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PQIIn-0007Mq-EP for qemu-devel@nongnu.org; Wed, 08 Dec 2010 06:35:17 -0500 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id oB8BZChB003535 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 8 Dec 2010 06:35:13 -0500 Received: from dhcp-1-237.tlv.redhat.com (dhcp-1-237.tlv.redhat.com [10.35.1.237]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id oB8BZB9A025615; Wed, 8 Dec 2010 06:35:12 -0500 Received: by dhcp-1-237.tlv.redhat.com (Postfix, from userid 13519) id 24EFC137AAD; Wed, 8 Dec 2010 13:35:10 +0200 (IST) From: Gleb Natapov To: qemu-devel@nongnu.org Date: Wed, 8 Dec 2010 13:35:09 +0200 Message-Id: <1291808109-22563-17-git-send-email-gleb@redhat.com> In-Reply-To: <1291808109-22563-1-git-send-email-gleb@redhat.com> References: <1291808109-22563-1-git-send-email-gleb@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.11 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. Cc: blauwirbel@gmail.com, kevin@koconnor.net, kvm@vger.kernel.org Subject: [Qemu-devel] [PATCHv8 16/16] Pass boot device list to firmware. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Signed-off-by: Gleb Natapov --- hw/fw_cfg.c | 14 ++++++++++++++ sysemu.h | 1 + vl.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 63 insertions(+), 0 deletions(-) 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];