2014-10-07 16:00:05 +08:00
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/*
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* QEMU Boot Device Implement
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*
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2015-03-26 20:57:43 +08:00
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* Copyright (c) 2014 HUAWEI TECHNOLOGIES CO., LTD.
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2014-10-07 16:00:05 +08:00
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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2016-01-30 01:50:05 +08:00
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#include "qemu/osdep.h"
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2014-10-07 16:00:05 +08:00
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#include "sysemu/sysemu.h"
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2014-10-07 16:00:11 +08:00
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#include "qapi/visitor.h"
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2014-10-07 16:00:38 +08:00
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#include "qemu/error-report.h"
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2014-12-04 00:49:46 +08:00
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#include "hw/hw.h"
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2014-10-07 16:00:05 +08:00
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typedef struct FWBootEntry FWBootEntry;
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struct FWBootEntry {
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QTAILQ_ENTRY(FWBootEntry) link;
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int32_t bootindex;
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DeviceState *dev;
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char *suffix;
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};
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static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
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QTAILQ_HEAD_INITIALIZER(fw_boot_order);
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2014-12-04 00:49:46 +08:00
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static QEMUBootSetHandler *boot_set_handler;
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static void *boot_set_opaque;
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void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
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{
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boot_set_handler = func;
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boot_set_opaque = opaque;
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}
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2014-12-04 02:20:58 +08:00
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void qemu_boot_set(const char *boot_order, Error **errp)
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2014-12-04 00:49:46 +08:00
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{
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2014-12-04 02:25:46 +08:00
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Error *local_err = NULL;
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2014-12-04 00:49:46 +08:00
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if (!boot_set_handler) {
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2014-12-04 02:20:58 +08:00
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error_setg(errp, "no function defined to set boot device list for"
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" this architecture");
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return;
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}
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2014-12-04 02:25:46 +08:00
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validate_bootdevices(boot_order, &local_err);
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if (local_err) {
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error_propagate(errp, local_err);
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return;
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}
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2014-12-04 03:04:02 +08:00
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boot_set_handler(boot_set_opaque, boot_order, errp);
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2014-12-04 00:49:46 +08:00
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}
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2014-12-04 01:11:39 +08:00
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void validate_bootdevices(const char *devices, Error **errp)
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2014-12-04 00:49:46 +08:00
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{
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/* We just do some generic consistency checks */
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const char *p;
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int bitmap = 0;
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for (p = devices; *p != '\0'; p++) {
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/* Allowed boot devices are:
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* a-b: floppy disk drives
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* c-f: IDE disk drives
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* g-m: machine implementation dependent drives
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* n-p: network devices
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* It's up to each machine implementation to check if the given boot
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* devices match the actual hardware implementation and firmware
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* features.
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*/
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if (*p < 'a' || *p > 'p') {
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2014-12-04 01:11:39 +08:00
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error_setg(errp, "Invalid boot device '%c'", *p);
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return;
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2014-12-04 00:49:46 +08:00
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}
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if (bitmap & (1 << (*p - 'a'))) {
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2014-12-04 01:11:39 +08:00
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error_setg(errp, "Boot device '%c' was given twice", *p);
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return;
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2014-12-04 00:49:46 +08:00
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}
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bitmap |= 1 << (*p - 'a');
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}
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}
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void restore_boot_order(void *opaque)
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{
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char *normal_boot_order = opaque;
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static int first = 1;
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/* Restore boot order and remove ourselves after the first boot */
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if (first) {
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first = 0;
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return;
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}
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2015-01-29 21:13:47 +08:00
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if (boot_set_handler) {
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qemu_boot_set(normal_boot_order, &error_abort);
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}
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2014-12-04 00:49:46 +08:00
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qemu_unregister_reset(restore_boot_order, normal_boot_order);
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g_free(normal_boot_order);
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}
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2014-10-07 16:00:05 +08:00
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2014-10-07 16:00:06 +08:00
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void check_boot_index(int32_t bootindex, Error **errp)
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{
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FWBootEntry *i;
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if (bootindex >= 0) {
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QTAILQ_FOREACH(i, &fw_boot_order, link) {
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if (i->bootindex == bootindex) {
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error_setg(errp, "The bootindex %d has already been used",
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bootindex);
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return;
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}
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}
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}
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}
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2014-10-07 16:00:07 +08:00
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void del_boot_device_path(DeviceState *dev, const char *suffix)
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{
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FWBootEntry *i;
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if (dev == NULL) {
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return;
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}
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QTAILQ_FOREACH(i, &fw_boot_order, link) {
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if ((!suffix || !g_strcmp0(i->suffix, suffix)) &&
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i->dev == dev) {
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QTAILQ_REMOVE(&fw_boot_order, i, link);
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g_free(i->suffix);
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g_free(i);
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break;
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}
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}
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}
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2014-10-07 16:00:05 +08:00
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void add_boot_device_path(int32_t bootindex, DeviceState *dev,
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const char *suffix)
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{
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FWBootEntry *node, *i;
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if (bootindex < 0) {
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2014-10-07 16:00:10 +08:00
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del_boot_device_path(dev, suffix);
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2014-10-07 16:00:05 +08:00
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return;
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}
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assert(dev != NULL || suffix != NULL);
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2014-10-07 16:00:09 +08:00
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del_boot_device_path(dev, suffix);
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2014-10-07 16:00:05 +08:00
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node = g_malloc0(sizeof(FWBootEntry));
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node->bootindex = bootindex;
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node->suffix = g_strdup(suffix);
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node->dev = dev;
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QTAILQ_FOREACH(i, &fw_boot_order, link) {
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if (i->bootindex == bootindex) {
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2014-10-07 16:00:38 +08:00
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error_report("Two devices with same boot index %d", bootindex);
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2014-10-07 16:00:05 +08:00
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exit(1);
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} else if (i->bootindex < bootindex) {
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continue;
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}
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QTAILQ_INSERT_BEFORE(i, node, link);
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return;
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}
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QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
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}
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DeviceState *get_boot_device(uint32_t position)
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{
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uint32_t counter = 0;
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FWBootEntry *i = NULL;
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DeviceState *res = NULL;
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if (!QTAILQ_EMPTY(&fw_boot_order)) {
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QTAILQ_FOREACH(i, &fw_boot_order, link) {
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if (counter == position) {
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res = i->dev;
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break;
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}
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counter++;
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}
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}
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return res;
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}
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/*
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* This function returns null terminated string that consist of new line
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* separated device paths.
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*
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* memory pointed by "size" is assigned total length of the array in bytes
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*
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*/
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char *get_boot_devices_list(size_t *size, bool ignore_suffixes)
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{
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FWBootEntry *i;
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size_t total = 0;
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char *list = NULL;
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QTAILQ_FOREACH(i, &fw_boot_order, link) {
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2015-01-29 15:08:51 +08:00
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char *devpath = NULL, *suffix = NULL;
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char *bootpath;
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char *d;
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2014-10-07 16:00:05 +08:00
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size_t len;
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if (i->dev) {
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devpath = qdev_get_fw_dev_path(i->dev);
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assert(devpath);
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}
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2015-01-29 15:08:51 +08:00
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if (!ignore_suffixes) {
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2015-02-27 09:49:44 +08:00
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if (i->dev) {
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d = qdev_get_own_fw_dev_path_from_handler(i->dev->parent_bus,
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i->dev);
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if (d) {
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assert(!i->suffix);
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suffix = d;
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} else {
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suffix = g_strdup(i->suffix);
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}
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2015-01-29 15:08:51 +08:00
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} else {
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suffix = g_strdup(i->suffix);
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}
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2014-10-07 16:00:05 +08:00
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}
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2015-01-29 15:08:51 +08:00
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bootpath = g_strdup_printf("%s%s",
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devpath ? devpath : "",
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suffix ? suffix : "");
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g_free(devpath);
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g_free(suffix);
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2014-10-07 16:00:05 +08:00
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if (total) {
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list[total-1] = '\n';
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}
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len = strlen(bootpath) + 1;
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list = g_realloc(list, total + len);
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memcpy(&list[total], bootpath, len);
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total += len;
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g_free(bootpath);
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}
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*size = total;
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if (boot_strict && *size > 0) {
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list[total-1] = '\n';
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list = g_realloc(list, total + 5);
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memcpy(&list[total], "HALT", 5);
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*size = total + 5;
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}
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return list;
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}
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2014-10-07 16:00:11 +08:00
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typedef struct {
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int32_t *bootindex;
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const char *suffix;
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DeviceState *dev;
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} BootIndexProperty;
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qom: Swap 'name' next to visitor in ObjectPropertyAccessor
Similar to the previous patch, it's nice to have all functions
in the tree that involve a visitor and a name for conversion to
or from QAPI to consistently stick the 'name' parameter next
to the Visitor parameter.
Done by manually changing include/qom/object.h and qom/object.c,
then running this Coccinelle script and touching up the fallout
(Coccinelle insisted on adding some trailing whitespace).
@ rule1 @
identifier fn;
typedef Object, Visitor, Error;
identifier obj, v, opaque, name, errp;
@@
void fn
- (Object *obj, Visitor *v, void *opaque, const char *name,
+ (Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp) { ... }
@@
identifier rule1.fn;
expression obj, v, opaque, name, errp;
@@
fn(obj, v,
- opaque, name,
+ name, opaque,
errp)
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1454075341-13658-20-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-01-29 21:48:55 +08:00
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static void device_get_bootindex(Object *obj, Visitor *v, const char *name,
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void *opaque, Error **errp)
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2014-10-07 16:00:11 +08:00
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{
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BootIndexProperty *prop = opaque;
|
qapi: Swap visit_* arguments for consistent 'name' placement
JSON uses "name":value, but many of our visitor interfaces were
called with visit_type_FOO(v, &value, name, errp). This can be
a bit confusing to have to mentally swap the parameter order to
match JSON order. It's particularly bad for visit_start_struct(),
where the 'name' parameter is smack in the middle of the
otherwise-related group of 'obj, kind, size' parameters! It's
time to do a global swap of the parameter ordering, so that the
'name' parameter is always immediately after the Visitor argument.
Additional reason in favor of the swap: the existing include/qjson.h
prefers listing 'name' first in json_prop_*(), and I have plans to
unify that file with the qapi visitors; listing 'name' first in
qapi will minimize churn to the (admittedly few) qjson.h clients.
Later patches will then fix docs, object.h, visitor-impl.h, and
those clients to match.
Done by first patching scripts/qapi*.py by hand to make generated
files do what I want, then by running the following Coccinelle
script to affect the rest of the code base:
$ spatch --sp-file script `git grep -l '\bvisit_' -- '**/*.[ch]'`
I then had to apply some touchups (Coccinelle insisted on TAB
indentation in visitor.h, and botched the signature of
visit_type_enum() by rewriting 'const char *const strings[]' to
the syntactically invalid 'const char*const[] strings'). The
movement of parameters is sufficient to provoke compiler errors
if any callers were missed.
// Part 1: Swap declaration order
@@
type TV, TErr, TObj, T1, T2;
identifier OBJ, ARG1, ARG2;
@@
void visit_start_struct
-(TV v, TObj OBJ, T1 ARG1, const char *name, T2 ARG2, TErr errp)
+(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp)
{ ... }
@@
type bool, TV, T1;
identifier ARG1;
@@
bool visit_optional
-(TV v, T1 ARG1, const char *name)
+(TV v, const char *name, T1 ARG1)
{ ... }
@@
type TV, TErr, TObj, T1;
identifier OBJ, ARG1;
@@
void visit_get_next_type
-(TV v, TObj OBJ, T1 ARG1, const char *name, TErr errp)
+(TV v, const char *name, TObj OBJ, T1 ARG1, TErr errp)
{ ... }
@@
type TV, TErr, TObj, T1, T2;
identifier OBJ, ARG1, ARG2;
@@
void visit_type_enum
-(TV v, TObj OBJ, T1 ARG1, T2 ARG2, const char *name, TErr errp)
+(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp)
{ ... }
@@
type TV, TErr, TObj;
identifier OBJ;
identifier VISIT_TYPE =~ "^visit_type_";
@@
void VISIT_TYPE
-(TV v, TObj OBJ, const char *name, TErr errp)
+(TV v, const char *name, TObj OBJ, TErr errp)
{ ... }
// Part 2: swap caller order
@@
expression V, NAME, OBJ, ARG1, ARG2, ERR;
identifier VISIT_TYPE =~ "^visit_type_";
@@
(
-visit_start_struct(V, OBJ, ARG1, NAME, ARG2, ERR)
+visit_start_struct(V, NAME, OBJ, ARG1, ARG2, ERR)
|
-visit_optional(V, ARG1, NAME)
+visit_optional(V, NAME, ARG1)
|
-visit_get_next_type(V, OBJ, ARG1, NAME, ERR)
+visit_get_next_type(V, NAME, OBJ, ARG1, ERR)
|
-visit_type_enum(V, OBJ, ARG1, ARG2, NAME, ERR)
+visit_type_enum(V, NAME, OBJ, ARG1, ARG2, ERR)
|
-VISIT_TYPE(V, OBJ, NAME, ERR)
+VISIT_TYPE(V, NAME, OBJ, ERR)
)
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1454075341-13658-19-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-01-29 21:48:54 +08:00
|
|
|
visit_type_int32(v, name, prop->bootindex, errp);
|
2014-10-07 16:00:11 +08:00
|
|
|
}
|
|
|
|
|
qom: Swap 'name' next to visitor in ObjectPropertyAccessor
Similar to the previous patch, it's nice to have all functions
in the tree that involve a visitor and a name for conversion to
or from QAPI to consistently stick the 'name' parameter next
to the Visitor parameter.
Done by manually changing include/qom/object.h and qom/object.c,
then running this Coccinelle script and touching up the fallout
(Coccinelle insisted on adding some trailing whitespace).
@ rule1 @
identifier fn;
typedef Object, Visitor, Error;
identifier obj, v, opaque, name, errp;
@@
void fn
- (Object *obj, Visitor *v, void *opaque, const char *name,
+ (Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp) { ... }
@@
identifier rule1.fn;
expression obj, v, opaque, name, errp;
@@
fn(obj, v,
- opaque, name,
+ name, opaque,
errp)
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1454075341-13658-20-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-01-29 21:48:55 +08:00
|
|
|
static void device_set_bootindex(Object *obj, Visitor *v, const char *name,
|
|
|
|
void *opaque, Error **errp)
|
2014-10-07 16:00:11 +08:00
|
|
|
{
|
|
|
|
BootIndexProperty *prop = opaque;
|
|
|
|
int32_t boot_index;
|
|
|
|
Error *local_err = NULL;
|
|
|
|
|
qapi: Swap visit_* arguments for consistent 'name' placement
JSON uses "name":value, but many of our visitor interfaces were
called with visit_type_FOO(v, &value, name, errp). This can be
a bit confusing to have to mentally swap the parameter order to
match JSON order. It's particularly bad for visit_start_struct(),
where the 'name' parameter is smack in the middle of the
otherwise-related group of 'obj, kind, size' parameters! It's
time to do a global swap of the parameter ordering, so that the
'name' parameter is always immediately after the Visitor argument.
Additional reason in favor of the swap: the existing include/qjson.h
prefers listing 'name' first in json_prop_*(), and I have plans to
unify that file with the qapi visitors; listing 'name' first in
qapi will minimize churn to the (admittedly few) qjson.h clients.
Later patches will then fix docs, object.h, visitor-impl.h, and
those clients to match.
Done by first patching scripts/qapi*.py by hand to make generated
files do what I want, then by running the following Coccinelle
script to affect the rest of the code base:
$ spatch --sp-file script `git grep -l '\bvisit_' -- '**/*.[ch]'`
I then had to apply some touchups (Coccinelle insisted on TAB
indentation in visitor.h, and botched the signature of
visit_type_enum() by rewriting 'const char *const strings[]' to
the syntactically invalid 'const char*const[] strings'). The
movement of parameters is sufficient to provoke compiler errors
if any callers were missed.
// Part 1: Swap declaration order
@@
type TV, TErr, TObj, T1, T2;
identifier OBJ, ARG1, ARG2;
@@
void visit_start_struct
-(TV v, TObj OBJ, T1 ARG1, const char *name, T2 ARG2, TErr errp)
+(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp)
{ ... }
@@
type bool, TV, T1;
identifier ARG1;
@@
bool visit_optional
-(TV v, T1 ARG1, const char *name)
+(TV v, const char *name, T1 ARG1)
{ ... }
@@
type TV, TErr, TObj, T1;
identifier OBJ, ARG1;
@@
void visit_get_next_type
-(TV v, TObj OBJ, T1 ARG1, const char *name, TErr errp)
+(TV v, const char *name, TObj OBJ, T1 ARG1, TErr errp)
{ ... }
@@
type TV, TErr, TObj, T1, T2;
identifier OBJ, ARG1, ARG2;
@@
void visit_type_enum
-(TV v, TObj OBJ, T1 ARG1, T2 ARG2, const char *name, TErr errp)
+(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp)
{ ... }
@@
type TV, TErr, TObj;
identifier OBJ;
identifier VISIT_TYPE =~ "^visit_type_";
@@
void VISIT_TYPE
-(TV v, TObj OBJ, const char *name, TErr errp)
+(TV v, const char *name, TObj OBJ, TErr errp)
{ ... }
// Part 2: swap caller order
@@
expression V, NAME, OBJ, ARG1, ARG2, ERR;
identifier VISIT_TYPE =~ "^visit_type_";
@@
(
-visit_start_struct(V, OBJ, ARG1, NAME, ARG2, ERR)
+visit_start_struct(V, NAME, OBJ, ARG1, ARG2, ERR)
|
-visit_optional(V, ARG1, NAME)
+visit_optional(V, NAME, ARG1)
|
-visit_get_next_type(V, OBJ, ARG1, NAME, ERR)
+visit_get_next_type(V, NAME, OBJ, ARG1, ERR)
|
-visit_type_enum(V, OBJ, ARG1, ARG2, NAME, ERR)
+visit_type_enum(V, NAME, OBJ, ARG1, ARG2, ERR)
|
-VISIT_TYPE(V, OBJ, NAME, ERR)
+VISIT_TYPE(V, NAME, OBJ, ERR)
)
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1454075341-13658-19-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-01-29 21:48:54 +08:00
|
|
|
visit_type_int32(v, name, &boot_index, &local_err);
|
2014-10-07 16:00:11 +08:00
|
|
|
if (local_err) {
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
/* check whether bootindex is present in fw_boot_order list */
|
|
|
|
check_boot_index(boot_index, &local_err);
|
|
|
|
if (local_err) {
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
/* change bootindex to a new one */
|
|
|
|
*prop->bootindex = boot_index;
|
|
|
|
|
2014-10-07 16:00:36 +08:00
|
|
|
add_boot_device_path(*prop->bootindex, prop->dev, prop->suffix);
|
|
|
|
|
2014-10-07 16:00:11 +08:00
|
|
|
out:
|
|
|
|
if (local_err) {
|
|
|
|
error_propagate(errp, local_err);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void property_release_bootindex(Object *obj, const char *name,
|
|
|
|
void *opaque)
|
|
|
|
|
|
|
|
{
|
|
|
|
BootIndexProperty *prop = opaque;
|
2014-10-07 16:00:37 +08:00
|
|
|
|
|
|
|
del_boot_device_path(prop->dev, prop->suffix);
|
2014-10-07 16:00:11 +08:00
|
|
|
g_free(prop);
|
|
|
|
}
|
|
|
|
|
|
|
|
void device_add_bootindex_property(Object *obj, int32_t *bootindex,
|
|
|
|
const char *name, const char *suffix,
|
|
|
|
DeviceState *dev, Error **errp)
|
|
|
|
{
|
|
|
|
Error *local_err = NULL;
|
|
|
|
BootIndexProperty *prop = g_malloc0(sizeof(*prop));
|
|
|
|
|
|
|
|
prop->bootindex = bootindex;
|
|
|
|
prop->suffix = suffix;
|
|
|
|
prop->dev = dev;
|
|
|
|
|
|
|
|
object_property_add(obj, name, "int32",
|
|
|
|
device_get_bootindex,
|
|
|
|
device_set_bootindex,
|
|
|
|
property_release_bootindex,
|
|
|
|
prop, &local_err);
|
|
|
|
|
|
|
|
if (local_err) {
|
|
|
|
error_propagate(errp, local_err);
|
|
|
|
g_free(prop);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/* initialize devices' bootindex property to -1 */
|
|
|
|
object_property_set_int(obj, -1, name, NULL);
|
|
|
|
}
|