[Intel-gfx] [PATCH i-g-t v3] Add the new tool for create GVT-g Linux guest based on KVMGT
Petri Latvala
petri.latvala at intel.com
Thu Mar 9 10:58:11 UTC 2017
On Fri, Mar 10, 2017 at 03:34:49AM +0800, Terrence Xu wrote:
> GVT-g (Intel® Graphics Virtualization Technology) is a full GPU
> virtualization solution with mediated pass-through support.
>
> This tool is for create basic Linux guest based on KVMGT with
> VFIO framework, it including create vgpu, create guest, check IP
> address, destroy guest, remove vgpu,check dmesg log, etc functions.
>
> v2: Treat this case as a free-standing tool, with detect & skip
> when it's not running on GVT-g capable platform or running without
> the required tools.
>
> v3: Make some optimizations: like "update the generate mac address
> scripts", "provide more useful information for end user", etc.
>
> Signed-off-by: Terrence Xu <terrence.xu at intel.com>
> Signed-off-by: Benyu Xu <benyux.xu at intel.com>
> ---
> tools/.gitignore | 1 +
> tools/Makefile.sources | 1 +
> tools/intel_gvtg_test.c | 359 ++++++++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 361 insertions(+)
> create mode 100644 tools/intel_gvtg_test.c
>
> diff --git a/tools/.gitignore b/tools/.gitignore
> index 13825a3..f777f2b 100644
> --- a/tools/.gitignore
> +++ b/tools/.gitignore
> @@ -30,5 +30,6 @@ intel_reg_checker
> intel_residency
> intel_stepping
> intel_watermark
> +intel_gvtg_test
> skl_compute_wrpll
> skl_ddb_allocation
Sort alphabetically.
> diff --git a/tools/Makefile.sources b/tools/Makefile.sources
> index e2451ea..5f1e747 100644
> --- a/tools/Makefile.sources
> +++ b/tools/Makefile.sources
> @@ -30,6 +30,7 @@ tools_prog_lists = \
> intel_stepping \
> intel_watermark \
> intel_gem_info \
> + intel_gvtg_test \
> $(NULL)
>
> dist_bin_SCRIPTS = intel_gpu_abrt
> diff --git a/tools/intel_gvtg_test.c b/tools/intel_gvtg_test.c
> new file mode 100644
> index 0000000..ec6dd99
> --- /dev/null
> +++ b/tools/intel_gvtg_test.c
> @@ -0,0 +1,359 @@
> +/*
> + * Copyright 2016 Intel Corporation
> + * Terrence Xu <terrence.xu at intel.com>
> + *
This should be
* Copyright © 2016-2017 Intel Corporation
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the "Software"),
> + * to deal in the Software without restriction, including without limitation
> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
> + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
> + * IN THE SOFTWARE.
> + */
> +
> +/*
> + * This program is intended for testing of validate GVT-g virtual machine
> + * creation of allow for testing of KVMGT / XenGT (the tool should be root
> + * privilege only).
> + *
> + * TODO:
> + * Enable more GVT-g related test cases.
> + */
> +#ifdef HAVE_CONFIG_H
> +#include "config.h"
> +#endif
> +
> +#include "igt.h"
> +#include <errno.h>
> +#include <getopt.h>
> +#include <math.h>
> +#include <stdint.h>
> +#include <stdbool.h>
> +#include <strings.h>
> +#include <unistd.h>
> +#include <termios.h>
> +#include <sys/poll.h>
> +#include <sys/time.h>
> +#include <sys/ioctl.h>
> +#include <sys/types.h>
> +#include <sys/stat.h>
> +#include <string.h>
> +#include <stdlib.h>
> +#include <signal.h>
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <time.h>
> +#include <unistd.h>
> +#include <pwd.h>
> +#include <limits.h>
> +#include <dirent.h>
> +
> +#define RANDOM(x) (rand() % x)
> +
> +
> +static char uuid[40];
> +static char guest_ip[32];
> +
> +static char mac_addr[20] = {0};
> +static char qemu_path[PATH_MAX] = {0};
> +static char hda_path[PATH_MAX] = {0};
> +static char bios_path[PATH_MAX] = {0};
> +
> +static int super_system(const char *cmd, char *retmsg, int msg_len)
> +{
> + FILE *fp;
> + int res = -1;
> + if (cmd == NULL || retmsg == NULL || msg_len < 0) {
> + igt_info("Error: %s system parameter invalid!\n", __func__);
> + return 1;
> + }
> + fp = popen(cmd, "r");
> + if (fp == NULL) {
> + perror("popen");
> + igt_info("Error: %s popen error: %s\n", __func__, strerror(errno));
> + return 2;
> + } else {
> + memset(retmsg, 0, msg_len);
> + while (fgets(retmsg, msg_len, fp)) {
> + ;
> + }
> + res = pclose(fp);
> + if (res == -1) {
> + igt_info("Error:%s close popen file pointer fp error!\n", __func__);
> + return 3;
> + }
> + retmsg[strlen(retmsg) - 1] = '\0';
> + return 0;
> + }
> +}
> +
> +static int check_gvtg_support(void)
> +{
> + DIR *mdevdir = opendir("/sys/bus/pci/devices/0000:00:02.0/"
> + "mdev_supported_types");
> +
> + if (mdevdir == NULL) {
> + return 1;
> + }
> + closedir(mdevdir);
> + return 0;
> +}
> +
> +static int check_tools(void)
> +{
> + if (system("which uuidgen > /dev/null") != 0) {
> + return 1;
> + } else if (system("which arp-scan > /dev/null") != 0) {
> + return 2;
> + } else if (system("which /etc/qemu-ifup > /dev/null") != 0) {
> + return 3;
> + }
> + return 0;
> +}
> +
> +static void create_guest(void)
> +{
> + char create_qcow_cmd[PATH_MAX] = {0};
> + char create_vgpu_cmd[PATH_MAX] = {0};
> + char create_instance_cmd[PATH_MAX] = {0};
> +
> + sprintf(create_qcow_cmd, "qemu-img create -b %s -f qcow2 %s.qcow2",
> + hda_path, hda_path);
> + sprintf(create_vgpu_cmd, "echo \"%s\" > /sys/bus/pci/devices/0000:00:02.0/"
> + "mdev_supported_types/$(ls /sys/bus/pci/devices/0000:00:02.0/"
> + "mdev_supported_types |awk {'print $1'}|tail -1)/create", uuid);
> + sprintf(create_instance_cmd, "%s -m 2048 -smp 2 -M pc -name gvtg_guest"
> + " -hda %s.qcow2 -bios %s -enable-kvm --net nic,macaddr=%s -net"
> + " tap,script=/etc/qemu-ifup -vga cirrus -k en-us"
> + " -serial stdio -vnc :1 -machine kernel_irqchip=on -global"
> + " PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -cpu host"
> + " -usb -usbdevice tablet -device vfio-pci,sysfsdev="
> + "/sys/bus/pci/devices/0000:00:02.0/%s &",
> + qemu_path, hda_path, bios_path, mac_addr, uuid);
> + igt_assert_eq(system(create_qcow_cmd), 0);
> + igt_assert_eq(system(create_vgpu_cmd), 0);
> + igt_assert_eq(system(create_instance_cmd), 0);
> +}
> +
> +static void destroy_all_guest(void)
> +{
> + system("pkill qemu");
> +}
> +
> +static void remove_vgpu(void)
> +{
> + char cmd[128] = {0};
> + sprintf(cmd, "echo 1 > /sys/bus/pci/devices/0000:00:02.0/%s/remove", uuid);
> + igt_assert_eq(system(cmd), 0);
> +}
> +
> +static void gen_mac_addr(void)
> +{
> + srand(getpid());
> + sprintf(mac_addr, "52:54:00:%2X:%02X:%02X", RANDOM(256), RANDOM(256),
> +RANDOM(256));
> +}
> +
> +static void gen_uuid(void)
> +{
> + igt_assert_eq(super_system("uuidgen", uuid, sizeof(uuid)), 0); }
> +
That ending brace slipped to the previous line.
> +static char *fetch_ip_by_mac(char *mac)
> +{
> + char cmd[1024] = {0};
> + sprintf(cmd, "arp-scan -l -I $(ip addr show|grep inet|grep global|"
> + "awk '{print $NF;}')|grep -i %s|awk '{print $1}'", mac);
> + igt_assert_eq(super_system(cmd, guest_ip, sizeof(guest_ip)), 0);
> + return guest_ip;
> +}
> +
> +static int check_guest_ip(void)
> +{
> + int timeout = 0;
> + while (timeout <= 12) {
> + igt_info("Trying to connnect guest, attempt %d.\n", timeout);
Typo fix, connnect -> connect
> + if (timeout == 12) {
> + igt_info("Cannot connect to guest.\n");
> + return 1;
> + break;
> + }
> +
> + fetch_ip_by_mac(mac_addr);
> +
> + if (guest_ip[0] != '\0') {
> + igt_info("Fetched guest ip address: %s.\n", guest_ip);
> + break;
> + }
> + timeout++;
> + sleep(5);
> + }
> + return 0;
> +}
> +
> +static void clear_dmesg(void)
> +{
> + igt_assert_eq(system("dmesg -c > /dev/null"), 0);
> +}
> +
> +static int check_dmesg(void)
> +{
> + char errorlog[PATH_MAX] = {0};
> +
> + igt_assert_eq(super_system("dmesg|grep -E \"GPU HANG|gfx reset|BUG\"",
> + errorlog, sizeof(errorlog)), 0);
> +
> + if (errorlog[0] == '\0') {
> + return 0;
> + } else {
> + return 1;
> + }
> +}
> +
> +static const char optstr[] = "h";
> +
> +static void print_help(void)
> +{
> + igt_info("\n[options]\n"
> + "-h, --help display usage\n"
> + "-q, --qemu the qemu path\n"
> + "-a, --hda the hda raw image / qcow path\n"
> + "-b, --bios the seabios path\n\n"
> + "[example]\n"
> + " ./intel_gvtg_test -q /usr/bin/qemu-system-x86_64 -a "
> + "/home/img/ubuntu-16.04.img -b /usr/bin/bios.bin\n"
> + );
> +}
> +
> +static void arg_mismatch(char *arg)
> +{
> + igt_info("argument mismatch: %s\n", arg);
> +}
> +
> +int main(int argc, char *argv[])
> +{
> + int opt = -1;
> + const char *optstring = "hq:a:b:";
> + static struct option long_options[] = {
> + {"help", 0, NULL, 'h'},
> + {"qemu", 1, NULL, 'q'},
> + {"hda", 1, NULL, 'a'},
> + {"bios", 1, NULL, 'b'},
> + {0, 0, 0, 0}
> + };
> +
> + int ret = 0;
> + int flag_cnt = 0;
> + int h_flag = 0;
> + int q_flag = 0;
> + int a_flag = 0;
> + int b_flag = 0;
> +
> + if (check_gvtg_support() == 1) {
> + igt_skip("GVT-g technology is not supported in your system.\n");
> + }
> +
> + if (check_tools() == 1) {
> + igt_skip("Please install the \"uuid-runtime\" tool.\n");
> + } else if (check_tools() == 2) {
> + igt_skip("Please install the \"arp-scan\" tool.\n");
> + } else if (check_tools() == 3) {
> + igt_skip("Please prepare the \"qemu-ifup\" script.\n");
> + }
> +
The pattern
if (something) {
igt_skip("text");
}
can be written as
igt_skip_on_f(something, "text")
but that's not a huge deal.
Calling check_tools() multiple times is a bit wasteful. Also not a
huge deal.
Otherwise looks good to me.
--
Petri Latvala
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