From: Alan Carew Date: Tue, 25 Nov 2014 16:18:06 +0000 (+0000) Subject: examples/vm_power: cli in guest X-Git-Tag: spdx-start~10074 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=f5e5c3347ae3eab86b4e0bd0cf269ef577bf5f92;p=dpdk.git examples/vm_power: cli in guest Provides a small sample application(guest_vm_power_mgr) to run on a VM. The application is run by providing a core mask(-c) and number of memory channels(-n). The core mask corresponds to the number of lcore channels to attempt to open. A maximum of 64 channels per VM is allowed. The channels must be monitored by the host. After successful initialisation a CPU frequency command can be sent to the host using: set_cpu_freq . Signed-off-by: Alan Carew Signed-off-by: Pablo de Lara --- diff --git a/examples/vm_power_manager/guest_cli/Makefile b/examples/vm_power_manager/guest_cli/Makefile new file mode 100644 index 0000000000..550727081c --- /dev/null +++ b/examples/vm_power_manager/guest_cli/Makefile @@ -0,0 +1,56 @@ +# BSD LICENSE +# +# Copyright(c) 2010-2014 Intel Corporation. All rights reserved. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Intel Corporation nor the names of its +# contributors may be used to endorse or promote products derived +# from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +ifeq ($(RTE_SDK),) +$(error "Please define RTE_SDK environment variable") +endif + +# Default target, can be overridden by command line or environment +RTE_TARGET ?= x86_64-native-linuxapp-gcc + +include $(RTE_SDK)/mk/rte.vars.mk + +# binary name +APP = guest_vm_power_mgr + +# all source are stored in SRCS-y +SRCS-y := main.c vm_power_cli_guest.c + +CFLAGS += -O3 -I$(RTE_SDK)/lib/librte_power/ +CFLAGS += $(WERROR_FLAGS) + +# workaround for a gcc bug with noreturn attribute +# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603 +ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y) +CFLAGS_main.o += -Wno-return-type +endif + +include $(RTE_SDK)/mk/rte.extapp.mk diff --git a/examples/vm_power_manager/guest_cli/main.c b/examples/vm_power_manager/guest_cli/main.c new file mode 100644 index 0000000000..f8e6a7d0a4 --- /dev/null +++ b/examples/vm_power_manager/guest_cli/main.c @@ -0,0 +1,88 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +*/ +#include + +#include +#include +#include +#include + +#include "vm_power_cli_guest.h" +#include "main.h" + +static void +sig_handler(int signo) +{ + printf("Received signal %d, exiting...\n", signo); + unsigned lcore_id; + + RTE_LCORE_FOREACH(lcore_id) { + rte_power_exit(lcore_id); + } + +} + +int +MAIN(int argc, char **argv) +{ + int ret; + unsigned lcore_id; + + ret = rte_eal_init(argc, argv); + if (ret < 0) + rte_panic("Cannot init EAL\n"); + + signal(SIGINT, sig_handler); + signal(SIGTERM, sig_handler); + + rte_power_set_env(PM_ENV_KVM_VM); + RTE_LCORE_FOREACH(lcore_id) { + rte_power_init(lcore_id); + } + run_cli(NULL); + + return 0; +} diff --git a/examples/vm_power_manager/guest_cli/main.h b/examples/vm_power_manager/guest_cli/main.h new file mode 100644 index 0000000000..7b4c3da0bd --- /dev/null +++ b/examples/vm_power_manager/guest_cli/main.h @@ -0,0 +1,52 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _MAIN_H_ +#define _MAIN_H_ + +#ifdef RTE_EXEC_ENV_BAREMETAL +#define MAIN _main +#else +#define MAIN main +#endif + +int MAIN(int argc, char **argv); + +#endif /* _MAIN_H_ */ + +#ifndef MAIN_H_ +#define MAIN_H_ + + + +#endif /* MAIN_H_ */ diff --git a/examples/vm_power_manager/guest_cli/vm_power_cli_guest.c b/examples/vm_power_manager/guest_cli/vm_power_cli_guest.c new file mode 100644 index 0000000000..75e544ae52 --- /dev/null +++ b/examples/vm_power_manager/guest_cli/vm_power_cli_guest.c @@ -0,0 +1,156 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "vm_power_cli_guest.h" + + +#define CHANNEL_PATH "/dev/virtio-ports/virtio.serial.port.poweragent" + + +#define RTE_LOGTYPE_GUEST_CHANNEL RTE_LOGTYPE_USER1 + +struct cmd_quit_result { + cmdline_fixed_string_t quit; +}; + +static void cmd_quit_parsed(__attribute__((unused)) void *parsed_result, + __attribute__((unused)) struct cmdline *cl, + __attribute__((unused)) void *data) +{ + unsigned lcore_id; + + RTE_LCORE_FOREACH(lcore_id) { + rte_power_exit(lcore_id); + } + cmdline_quit(cl); +} + +cmdline_parse_token_string_t cmd_quit_quit = + TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit"); + +cmdline_parse_inst_t cmd_quit = { + .f = cmd_quit_parsed, /* function to call */ + .data = NULL, /* 2nd arg of func */ + .help_str = "close the application", + .tokens = { /* token list, NULL terminated */ + (void *)&cmd_quit_quit, + NULL, + }, +}; + +/* *** VM operations *** */ + +struct cmd_set_cpu_freq_result { + cmdline_fixed_string_t set_cpu_freq; + uint8_t lcore_id; + cmdline_fixed_string_t cmd; +}; + +static void +cmd_set_cpu_freq_parsed(void *parsed_result, struct cmdline *cl, + __attribute__((unused)) void *data) +{ + int ret = -1; + struct cmd_set_cpu_freq_result *res = parsed_result; + + if (!strcmp(res->cmd , "up")) + ret = rte_power_freq_up(res->lcore_id); + else if (!strcmp(res->cmd , "down")) + ret = rte_power_freq_down(res->lcore_id); + else if (!strcmp(res->cmd , "min")) + ret = rte_power_freq_min(res->lcore_id); + else if (!strcmp(res->cmd , "max")) + ret = rte_power_freq_max(res->lcore_id); + if (ret != 1) + cmdline_printf(cl, "Error sending message: %s\n", strerror(ret)); +} + +cmdline_parse_token_string_t cmd_set_cpu_freq = + TOKEN_STRING_INITIALIZER(struct cmd_set_cpu_freq_result, + set_cpu_freq, "set_cpu_freq"); +cmdline_parse_token_string_t cmd_set_cpu_freq_core_num = + TOKEN_NUM_INITIALIZER(struct cmd_set_cpu_freq_result, + lcore_id, UINT8); +cmdline_parse_token_string_t cmd_set_cpu_freq_cmd_cmd = + TOKEN_STRING_INITIALIZER(struct cmd_set_cpu_freq_result, + cmd, "up#down#min#max"); + +cmdline_parse_inst_t cmd_set_cpu_freq_set = { + .f = cmd_set_cpu_freq_parsed, + .data = NULL, + .help_str = "set_cpu_freq , Set the current " + "frequency for the specified core by scaling up/down/min/max", + .tokens = { + (void *)&cmd_set_cpu_freq, + (void *)&cmd_set_cpu_freq_core_num, + (void *)&cmd_set_cpu_freq_cmd_cmd, + NULL, + }, +}; + +cmdline_parse_ctx_t main_ctx[] = { + (cmdline_parse_inst_t *)&cmd_quit, + (cmdline_parse_inst_t *)&cmd_set_cpu_freq_set, + NULL, +}; + +void +run_cli(__attribute__((unused)) void *arg) +{ + struct cmdline *cl; + + cl = cmdline_stdin_new(main_ctx, "vmpower(guest)> "); + if (cl == NULL) + return; + + cmdline_interact(cl); + cmdline_stdin_exit(cl); +} diff --git a/examples/vm_power_manager/guest_cli/vm_power_cli_guest.h b/examples/vm_power_manager/guest_cli/vm_power_cli_guest.h new file mode 100644 index 0000000000..0c4bdd5bb8 --- /dev/null +++ b/examples/vm_power_manager/guest_cli/vm_power_cli_guest.h @@ -0,0 +1,55 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef VM_POWER_CLI_H_ +#define VM_POWER_CLI_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "channel_commands.h" + +int guest_channel_host_connect(unsigned lcore_id); + +int guest_channel_send_msg(struct channel_packet *pkt, unsigned lcore_id); + +void guest_channel_host_disconnect(unsigned lcore_id); + +void run_cli(__attribute__((unused)) void *arg); + +#ifdef __cplusplus +} +#endif + +#endif /* VM_POWER_CLI_H_ */