Adding qemu as a submodule of KVMFORNFV

This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>

1 files changed, 0 insertions, 460 deletions

diff --git a/qemu/tests/rcutorture.c b/qemu/tests/rcutorture.c
deleted file mode 100644
index 244f0f28b..000000000
--- a/qemu/tests/rcutorture.c
+++ /dev/null
@@ -1,460 +0,0 @@
-/*
- * rcutorture.c: simple user-level performance/stress test of RCU.
- *
- * Usage:
- *     ./rcu <nreaders> rperf [ <seconds> ]
- *         Run a read-side performance test with the specified
- *         number of readers for <seconds> seconds.
- *     ./rcu <nupdaters> uperf [ <seconds> ]
- *         Run an update-side performance test with the specified
- *         number of updaters and specified duration.
- *     ./rcu <nreaders> perf [ <seconds> ]
- *         Run a combined read/update performance test with the specified
- *         number of readers and one updater and specified duration.
- *
- * The above tests produce output as follows:
- *
- * n_reads: 46008000  n_updates: 146026  nreaders: 2  nupdaters: 1 duration: 1
- * ns/read: 43.4707  ns/update: 6848.1
- *
- * The first line lists the total number of RCU reads and updates executed
- * during the test, the number of reader threads, the number of updater
- * threads, and the duration of the test in seconds.  The second line
- * lists the average duration of each type of operation in nanoseconds,
- * or "nan" if the corresponding type of operation was not performed.
- *
- *     ./rcu <nreaders> stress [ <seconds> ]
- *         Run a stress test with the specified number of readers and
- *         one updater.
- *
- * This test produces output as follows:
- *
- * n_reads: 114633217  n_updates: 3903415  n_mberror: 0
- * rcu_stress_count: 114618391 14826 0 0 0 0 0 0 0 0 0
- *
- * The first line lists the number of RCU read and update operations
- * executed, followed by the number of memory-ordering violations
- * (which will be zero in a correct RCU implementation).  The second
- * line lists the number of readers observing progressively more stale
- * data.  A correct RCU implementation will have all but the first two
- * numbers non-zero.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (c) 2008 Paul E. McKenney, IBM Corporation.
- */
-
-/*
- * Test variables.
- */
-
-#include "qemu/osdep.h"
-#include <glib.h>
-#include "qemu/atomic.h"
-#include "qemu/rcu.h"
-#include "qemu/thread.h"
-
-long long n_reads = 0LL;
-long n_updates = 0L;
-int nthreadsrunning;
-
-#define GOFLAG_INIT 0
-#define GOFLAG_RUN  1
-#define GOFLAG_STOP 2
-
-static volatile int goflag = GOFLAG_INIT;
-
-#define RCU_READ_RUN 1000
-
-#define NR_THREADS 100
-static QemuMutex counts_mutex;
-static QemuThread threads[NR_THREADS];
-static struct rcu_reader_data *data[NR_THREADS];
-static int n_threads;
-
-static void create_thread(void *(*func)(void *))
-{
-    if (n_threads >= NR_THREADS) {
-        fprintf(stderr, "Thread limit of %d exceeded!\n", NR_THREADS);
-        exit(-1);
-    }
-    qemu_thread_create(&threads[n_threads], "test", func, &data[n_threads],
-                       QEMU_THREAD_JOINABLE);
-    n_threads++;
-}
-
-static void wait_all_threads(void)
-{
-    int i;
-
-    for (i = 0; i < n_threads; i++) {
-        qemu_thread_join(&threads[i]);
-    }
-    n_threads = 0;
-}
-
-/*
- * Performance test.
- */
-
-static void *rcu_read_perf_test(void *arg)
-{
-    int i;
-    long long n_reads_local = 0;
-
-    rcu_register_thread();
-
-    *(struct rcu_reader_data **)arg = &rcu_reader;
-    atomic_inc(&nthreadsrunning);
-    while (goflag == GOFLAG_INIT) {
-        g_usleep(1000);
-    }
-    while (goflag == GOFLAG_RUN) {
-        for (i = 0; i < RCU_READ_RUN; i++) {
-            rcu_read_lock();
-            rcu_read_unlock();
-        }
-        n_reads_local += RCU_READ_RUN;
-    }
-    qemu_mutex_lock(&counts_mutex);
-    n_reads += n_reads_local;
-    qemu_mutex_unlock(&counts_mutex);
-
-    rcu_unregister_thread();
-    return NULL;
-}
-
-static void *rcu_update_perf_test(void *arg)
-{
-    long long n_updates_local = 0;
-
-    rcu_register_thread();
-
-    *(struct rcu_reader_data **)arg = &rcu_reader;
-    atomic_inc(&nthreadsrunning);
-    while (goflag == GOFLAG_INIT) {
-        g_usleep(1000);
-    }
-    while (goflag == GOFLAG_RUN) {
-        synchronize_rcu();
-        n_updates_local++;
-    }
-    qemu_mutex_lock(&counts_mutex);
-    n_updates += n_updates_local;
-    qemu_mutex_unlock(&counts_mutex);
-
-    rcu_unregister_thread();
-    return NULL;
-}
-
-static void perftestinit(void)
-{
-    nthreadsrunning = 0;
-}
-
-static void perftestrun(int nthreads, int duration, int nreaders, int nupdaters)
-{
-    while (atomic_read(&nthreadsrunning) < nthreads) {
-        g_usleep(1000);
-    }
-    goflag = GOFLAG_RUN;
-    g_usleep(duration * G_USEC_PER_SEC);
-    goflag = GOFLAG_STOP;
-    wait_all_threads();
-    printf("n_reads: %lld  n_updates: %ld  nreaders: %d  nupdaters: %d duration: %d\n",
-           n_reads, n_updates, nreaders, nupdaters, duration);
-    printf("ns/read: %g  ns/update: %g\n",
-           ((duration * 1000*1000*1000.*(double)nreaders) /
-        (double)n_reads),
-           ((duration * 1000*1000*1000.*(double)nupdaters) /
-        (double)n_updates));
-    exit(0);
-}
-
-static void perftest(int nreaders, int duration)
-{
-    int i;
-
-    perftestinit();
-    for (i = 0; i < nreaders; i++) {
-        create_thread(rcu_read_perf_test);
-    }
-    create_thread(rcu_update_perf_test);
-    perftestrun(i + 1, duration, nreaders, 1);
-}
-
-static void rperftest(int nreaders, int duration)
-{
-    int i;
-
-    perftestinit();
-    for (i = 0; i < nreaders; i++) {
-        create_thread(rcu_read_perf_test);
-    }
-    perftestrun(i, duration, nreaders, 0);
-}
-
-static void uperftest(int nupdaters, int duration)
-{
-    int i;
-
-    perftestinit();
-    for (i = 0; i < nupdaters; i++) {
-        create_thread(rcu_update_perf_test);
-    }
-    perftestrun(i, duration, 0, nupdaters);
-}
-
-/*
- * Stress test.
- */
-
-#define RCU_STRESS_PIPE_LEN 10
-
-struct rcu_stress {
-    int pipe_count;
-    int mbtest;
-};
-
-struct rcu_stress rcu_stress_array[RCU_STRESS_PIPE_LEN] = { { 0 } };
-struct rcu_stress *rcu_stress_current;
-int rcu_stress_idx;
-
-int n_mberror;
-long long rcu_stress_count[RCU_STRESS_PIPE_LEN + 1];
-
-
-static void *rcu_read_stress_test(void *arg)
-{
-    int i;
-    int itercnt = 0;
-    struct rcu_stress *p;
-    int pc;
-    long long n_reads_local = 0;
-    long long rcu_stress_local[RCU_STRESS_PIPE_LEN + 1] = { 0 };
-    volatile int garbage = 0;
-
-    rcu_register_thread();
-
-    *(struct rcu_reader_data **)arg = &rcu_reader;
-    while (goflag == GOFLAG_INIT) {
-        g_usleep(1000);
-    }
-    while (goflag == GOFLAG_RUN) {
-        rcu_read_lock();
-        p = atomic_rcu_read(&rcu_stress_current);
-        if (p->mbtest == 0) {
-            n_mberror++;
-        }
-        rcu_read_lock();
-        for (i = 0; i < 100; i++) {
-            garbage++;
-        }
-        rcu_read_unlock();
-        pc = p->pipe_count;
-        rcu_read_unlock();
-        if ((pc > RCU_STRESS_PIPE_LEN) || (pc < 0)) {
-            pc = RCU_STRESS_PIPE_LEN;
-        }
-        rcu_stress_local[pc]++;
-        n_reads_local++;
-        if ((++itercnt % 0x1000) == 0) {
-            synchronize_rcu();
-        }
-    }
-    qemu_mutex_lock(&counts_mutex);
-    n_reads += n_reads_local;
-    for (i = 0; i <= RCU_STRESS_PIPE_LEN; i++) {
-        rcu_stress_count[i] += rcu_stress_local[i];
-    }
-    qemu_mutex_unlock(&counts_mutex);
-
-    rcu_unregister_thread();
-    return NULL;
-}
-
-static void *rcu_update_stress_test(void *arg)
-{
-    int i;
-    struct rcu_stress *p;
-
-    rcu_register_thread();
-
-    *(struct rcu_reader_data **)arg = &rcu_reader;
-    while (goflag == GOFLAG_INIT) {
-        g_usleep(1000);
-    }
-    while (goflag == GOFLAG_RUN) {
-        i = rcu_stress_idx + 1;
-        if (i >= RCU_STRESS_PIPE_LEN) {
-            i = 0;
-        }
-        p = &rcu_stress_array[i];
-        p->mbtest = 0;
-        smp_mb();
-        p->pipe_count = 0;
-        p->mbtest = 1;
-        atomic_rcu_set(&rcu_stress_current, p);
-        rcu_stress_idx = i;
-        for (i = 0; i < RCU_STRESS_PIPE_LEN; i++) {
-            if (i != rcu_stress_idx) {
-                rcu_stress_array[i].pipe_count++;
-            }
-        }
-        synchronize_rcu();
-        n_updates++;
-    }
-
-    rcu_unregister_thread();
-    return NULL;
-}
-
-static void *rcu_fake_update_stress_test(void *arg)
-{
-    rcu_register_thread();
-
-    *(struct rcu_reader_data **)arg = &rcu_reader;
-    while (goflag == GOFLAG_INIT) {
-        g_usleep(1000);
-    }
-    while (goflag == GOFLAG_RUN) {
-        synchronize_rcu();
-        g_usleep(1000);
-    }
-
-    rcu_unregister_thread();
-    return NULL;
-}
-
-static void stresstest(int nreaders, int duration)
-{
-    int i;
-
-    rcu_stress_current = &rcu_stress_array[0];
-    rcu_stress_current->pipe_count = 0;
-    rcu_stress_current->mbtest = 1;
-    for (i = 0; i < nreaders; i++) {
-        create_thread(rcu_read_stress_test);
-    }
-    create_thread(rcu_update_stress_test);
-    for (i = 0; i < 5; i++) {
-        create_thread(rcu_fake_update_stress_test);
-    }
-    goflag = GOFLAG_RUN;
-    g_usleep(duration * G_USEC_PER_SEC);
-    goflag = GOFLAG_STOP;
-    wait_all_threads();
-    printf("n_reads: %lld  n_updates: %ld  n_mberror: %d\n",
-           n_reads, n_updates, n_mberror);
-    printf("rcu_stress_count:");
-    for (i = 0; i <= RCU_STRESS_PIPE_LEN; i++) {
-        printf(" %lld", rcu_stress_count[i]);
-    }
-    printf("\n");
-    exit(0);
-}
-
-/* GTest interface */
-
-static void gtest_stress(int nreaders, int duration)
-{
-    int i;
-
-    rcu_stress_current = &rcu_stress_array[0];
-    rcu_stress_current->pipe_count = 0;
-    rcu_stress_current->mbtest = 1;
-    for (i = 0; i < nreaders; i++) {
-        create_thread(rcu_read_stress_test);
-    }
-    create_thread(rcu_update_stress_test);
-    for (i = 0; i < 5; i++) {
-        create_thread(rcu_fake_update_stress_test);
-    }
-    goflag = GOFLAG_RUN;
-    g_usleep(duration * G_USEC_PER_SEC);
-    goflag = GOFLAG_STOP;
-    wait_all_threads();
-    g_assert_cmpint(n_mberror, ==, 0);
-    for (i = 2; i <= RCU_STRESS_PIPE_LEN; i++) {
-        g_assert_cmpint(rcu_stress_count[i], ==, 0);
-    }
-}
-
-static void gtest_stress_1_1(void)
-{
-    gtest_stress(1, 1);
-}
-
-static void gtest_stress_10_1(void)
-{
-    gtest_stress(10, 1);
-}
-
-static void gtest_stress_1_5(void)
-{
-    gtest_stress(1, 5);
-}
-
-static void gtest_stress_10_5(void)
-{
-    gtest_stress(10, 5);
-}
-
-/*
- * Mainprogram.
- */
-
-static void usage(int argc, char *argv[])
-{
-    fprintf(stderr, "Usage: %s [nreaders [ perf | stress ] ]\n", argv[0]);
-    exit(-1);
-}
-
-int main(int argc, char *argv[])
-{
-    int nreaders = 1;
-    int duration = 1;
-
-    qemu_mutex_init(&counts_mutex);
-    if (argc >= 2 && argv[1][0] == '-') {
-        g_test_init(&argc, &argv, NULL);
-        if (g_test_quick()) {
-            g_test_add_func("/rcu/torture/1reader", gtest_stress_1_1);
-            g_test_add_func("/rcu/torture/10readers", gtest_stress_10_1);
-        } else {
-            g_test_add_func("/rcu/torture/1reader", gtest_stress_1_5);
-            g_test_add_func("/rcu/torture/10readers", gtest_stress_10_5);
-        }
-        return g_test_run();
-    }
-
-    if (argc >= 2) {
-        nreaders = strtoul(argv[1], NULL, 0);
-    }
-    if (argc > 3) {
-        duration = strtoul(argv[3], NULL, 0);
-    }
-    if (argc < 3 || strcmp(argv[2], "stress") == 0) {
-        stresstest(nreaders, duration);
-    } else if (strcmp(argv[2], "rperf") == 0) {
-        rperftest(nreaders, duration);
-    } else if (strcmp(argv[2], "uperf") == 0) {
-        uperftest(nreaders, duration);
-    } else if (strcmp(argv[2], "perf") == 0) {
-        perftest(nreaders, duration);
-    }
-    usage(argc, argv);
-    return 0;
-}