#!/usr/bin/env python
#
# Copyright 2014 Huawei Technologies Co. Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""query switch."""
import optparse
import Queue
import threading
import time
from compass.apiclient.restful import Client
class AddSwitch(object):
"""A utility class.
Handles adding a switch and retrieving corresponding machines
associated with the switch.
"""
def __init__(self, server_url):
print server_url,.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long *//*
* QEMU memory mapping
*
* Copyright Fujitsu, Corp. 2011, 2012
*
* Authors:
* Wen Congyang <wency@cn.fujitsu.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include <glib.h>
#include "qemu-common.h"
#include "cpu.h"
#include "sysemu/memory_mapping.h"
#include "exec/memory.h"
#include "exec/address-spaces.h"
//#define DEBUG_GUEST_PHYS_REGION_ADD
static void memory_mapping_list_add_mapping_sorted(MemoryMappingList *list,
MemoryMapping *mapping)
{
MemoryMapping *p;
QTAILQ_FOREACH(p, &list->head, next) {
if (p->phys_addr >= mapping->phys_addr) {
QTAILQ_INSERT_BEFORE(p, mapping, next);
return;
}
}
QTAILQ_INSERT_TAIL(&list->head, mapping, next);
}
static void create_new_memory_mapping(MemoryMappingList *list,
hwaddr phys_addr,
hwaddr virt_addr,
ram_addr_t length)
{
MemoryMapping *memory_mapping;
memory_mapping = g_malloc(sizeof(MemoryMapping));
memory_mapping->phys_addr = phys_addr;
memory_mapping->virt_addr = virt_addr;
memory_mapping->length = length;
list->last_mapping = memory_mapping;
list->num++;
memory_mapping_list_add_mapping_sorted(list, memory_mapping);
}
static inline bool mapping_contiguous(MemoryMapping *map,
hwaddr phys_addr,
hwaddr virt_addr)
{
return phys_addr == map->phys_addr + map->length &&
virt_addr == map->virt_addr + map->length;
}
/*
* [map->phys_addr, map->phys_addr + map->length) and
* [phys_addr, phys_addr + length) have intersection?
*/
static inline bool mapping_have_same_region(MemoryMapping *map,
hwaddr phys_addr,
ram_addr_t length)
{
return !(phys_addr + length < map->phys_addr ||
phys_addr >= map->phys_addr + map->length);
}
/*
* [map->phys_addr, map->phys_addr + map->length) and
* [phys_addr, phys_addr + length) have intersection. The virtual address in the
* intersection are the same?
*/
static inline bool mapping_conflict(MemoryMapping *map,
hwaddr phys_addr,
hwaddr virt_addr)
{
return virt_addr - map->virt_addr != phys_addr - map->phys_addr;
}
/*
* [map->virt_addr, map->virt_addr + map->length) and
* [virt_addr, virt_addr + length) have intersection. And the physical address
* in the intersection are the same.
*/
static inline void mapping_merge(MemoryMapping *map,
hwaddr virt_addr,
ram_addr_t length)
{
if (virt_addr < map->virt_addr) {
map->length += map->virt_addr - virt_addr;
map->virt_addr = virt_addr;
}
if ((virt_addr + length) >
(map->virt_addr + map->length)) {
map->length = virt_addr + length - map->virt_addr;
}
}
void memory_mapping_list_add_merge_sorted(MemoryMappingList *list,
hwaddr phys_addr,
hwaddr virt_addr,
ram_addr_t length)
{
MemoryMapping *memory_mapping, *last_mapping;
if (QTAILQ_EMPTY(&list->head)) {
create_new_memory_mapping(list, phys_addr, virt_addr, length);
return;
}
last_mapping = list->last_mapping;
if (last_mapping) {
if (mapping_contiguous(last_mapping, phys_addr, virt_addr)) {
last_mapping->length += length;
return;
}
}
QTAILQ_FOREACH(memory_mapping, &list->head, next) {
if (mapping_contiguous(memory_mapping, phys_addr, virt_addr)) {
memory_mapping->length += length;
list->last_mapping = memory_mapping;
return;
}
if (phys_addr + length < memory_mapping->phys_addr) {
/* create a new region before memory_mapping */
break;
}
if (mapping_have_same_region(memory_mapping, phys_addr, length)) {
if (mapping_conflict(memory_mapping, phys_addr, virt_addr)) {
continue;
}
/* merge this region into memory_mapping */
mapping_merge(memory_mapping, virt_addr, length);
list->last_mapping = memory_mapping;
return;
}
}
/* this region can not be merged into any existed memory mapping. */
create_new_memory_mapping(list, phys_addr, virt_addr, length);
}
void memory_mapping_list_free(MemoryMappingList *list)
{
MemoryMapping *p, *q;
QTAILQ_FOREACH_SAFE(p, &list->head, next, q) {
QTAILQ_REMOVE(&list->head, p, next);
g_free(p);
}
list->num = 0;
list->last_mapping = NULL;
}
void memory_mapping_list_init(MemoryMappingList *list)
{
list->num = 0;
list->last_mapping = NULL;
QTAILQ_INIT(&list->head);
}
void guest_phys_blocks_free(GuestPhysBlockList *list)
{
GuestPhysBlock *p, *q;
QTAILQ_FOREACH_SAFE(p, &list->head, next, q) {
QTAILQ_REMOVE(&list->head, p, next);
memory_region_unref(p->mr);
g_free(p);
}
list->num = 0;
}
void guest_phys_blocks_init(GuestPhysBlockList *list)
{
list->num = 0;
QTAILQ_INIT(&list->head);
}
typedef struct GuestPhysListener {
GuestPhysBlockList *list;
MemoryListener listener;
} GuestPhysListener;
static void guest_phys_blocks_region_add(MemoryListener *listener,
MemoryRegionSection *section)
{
GuestPhysListener *g;
uint64_t section_size;
hwaddr target_start, target_end;
uint8_t *host_addr;
GuestPhysBlock *predecessor;
/* we only care about RAM */
if (!memory_region_is_ram(section->mr) ||
memory_region_is_skip_dump(section->mr)) {
return;
}
g = container_of(listener, GuestPhysListener, listener);
section_size = int128_get64(section->size);
target_start = section->offset_within_address_space;
target_end = target_start + section_size;
host_addr = memory_region_get_ram_ptr(section->mr) +
section->offset_within_region;
predecessor = NULL;
/* find continuity in guest physical address space */
if (!QTAILQ_EMPTY(&g->list->head)) {
hwaddr predecessor_size;
predecessor = QTAILQ_LAST(&g->list->head, GuestPhysBlockHead);
predecessor_size = predecessor->target_end - predecessor->target_start;
/* the memory API guarantees monotonically increasing traversal */
g_assert(predecessor->target_end <= target_start);
/* we want continuity in both guest-physical and host-virtual memory */
if (predecessor->target_end < target_start ||
predecessor->host_addr + predecessor_size != host_addr) {
predecessor = NULL;
}
}
if (predecessor == NULL) {
/* isolated mapping, allocate it and add it to the list */
GuestPhysBlock *block = g_malloc0(sizeof *block);
block->target_start = target_start;
block->target_end = target_end;
block->host_addr = host_addr;
block->mr = section->mr;
memory_region_ref(section->mr);
QTAILQ_INSERT_TAIL(&g->list->head, block, next);
++g->list->num;
} else {
/* expand predecessor until @target_end; predecessor's start doesn't
* change
*/
predecessor->target_end = target_end;
}
#ifdef DEBUG_GUEST_PHYS_REGION_ADD
fprintf(stderr, "%s: target_start=" TARGET_FMT_plx " target_end="
TARGET_FMT_plx ": %s (count: %u)\n", __FUNCTION__, target_start,
target_end, predecessor ? "joined" : "added", g->list->num);
#endif
}
void guest_phys_blocks_append(GuestPhysBlockList *list)
{
GuestPhysListener g = { 0 };
g.list = list;
g.listener.region_add = &guest_phys_blocks_region_add;
memory_listener_register(&g.listener, &address_space_memory);
memory_listener_unregister(&g.listener);
}
static CPUState *find_paging_enabled_cpu(CPUState *start_cpu)
{
CPUState *cpu;
CPU_FOREACH(cpu) {
if (cpu_paging_enabled(cpu)) {
return cpu;
}
}
return NULL;
}
void qemu_get_guest_memory_mapping(MemoryMappingList *list,
const GuestPhysBlockList *guest_phys_blocks,
Error **errp)
{
CPUState *cpu, *first_paging_enabled_cpu;
GuestPhysBlock *block;
ram_addr_t offset, length;
first_paging_enabled_cpu = find_paging_enabled_cpu(first_cpu);
if (first_paging_enabled_cpu) {
for (cpu = first_paging_enabled_cpu; cpu != NULL;
cpu = CPU_NEXT(cpu)) {
Error *err = NULL;
cpu_get_memory_mapping(cpu, list, &err);
if (err) {
error_propagate(errp, err);
return;
}
}
return;
}
/*
* If the guest doesn't use paging, the virtual address is equal to physical
* address.
*/
QTAILQ_FOREACH(block, &guest_phys_blocks->head, next) {
offset = block->target_start;
length = block->target_end - block->target_start;
create_new_memory_mapping(list, offset, offset, length);
}
}
void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list,
const GuestPhysBlockList *guest_phys_blocks)
{
GuestPhysBlock *block;
QTAILQ_FOREACH(block, &guest_phys_blocks->head, next) {
create_new_memory_mapping(list, block->target_start, 0,
block->target_end - block->target_start);
}
}
void memory_mapping_filter(MemoryMappingList *list, int64_t begin,
int64_t length)
{
MemoryMapping *cur, *next;
QTAILQ_FOREACH_SAFE(cur, &list->head, next, next) {
if (cur->phys_addr >= begin + length ||
cur->phys_addr + cur->length <= begin) {
QTAILQ_REMOVE(&list->head, cur, next);
list->num--;
continue;
}
if (cur->phys_addr < begin) {
cur->length -= begin - cur->phys_addr;
if (cur->virt_addr) {
cur->virt_addr += begin - cur->phys_addr;
}
cur->phys_addr = begin;
}
if (cur->phys_addr + cur->length > begin + length) {
cur->length -= cur->phys_addr + cur->length - begin - length;
}
}
}
