From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45103) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eimSj-0004wh-WE for qemu-devel@nongnu.org; Mon, 05 Feb 2018 14:29:59 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eimSh-0005BM-On for qemu-devel@nongnu.org; Mon, 05 Feb 2018 14:29:58 -0500 Received: from mail-wm0-x241.google.com ([2a00:1450:400c:c09::241]:34083) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eimSh-0005B5-EI for qemu-devel@nongnu.org; Mon, 05 Feb 2018 14:29:55 -0500 Received: by mail-wm0-x241.google.com with SMTP id j21-v6so14631243wmh.1 for ; Mon, 05 Feb 2018 11:29:55 -0800 (PST) Sender: Paolo Bonzini From: Paolo Bonzini Date: Mon, 5 Feb 2018 20:28:56 +0100 Message-Id: <1517858941-5538-43-git-send-email-pbonzini@redhat.com> In-Reply-To: <1517858941-5538-1-git-send-email-pbonzini@redhat.com> References: <1517858941-5538-1-git-send-email-pbonzini@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PULL 42/47] tests: use memfd in vhost-user-test List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= From: Marc-André Lureau This will exercise the memfd memory backend and should generally be better for testing than memory-backend-file (thanks to anonymous files and sealing). If memfd is available, it is preferred. However, in order to check that file & memfd backends both work correctly, the read-guest-mem test is checked explicitly for each. Signed-off-by: Marc-André Lureau Message-Id: <20180201132757.23063-8-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini --- tests/vhost-user-test.c | 90 +++++++++++++++++++++++++++++++++++-------------- 1 file changed, 64 insertions(+), 26 deletions(-) diff --git a/tests/vhost-user-test.c b/tests/vhost-user-test.c index a22075f..95eb449 100644 --- a/tests/vhost-user-test.c +++ b/tests/vhost-user-test.c @@ -17,6 +17,7 @@ #include "qemu/range.h" #include "qemu/sockets.h" #include "chardev/char-fe.h" +#include "qemu/memfd.h" #include "sysemu/sysemu.h" #include "libqos/libqos.h" #include "libqos/pci-pc.h" @@ -39,23 +40,14 @@ #define HAVE_MONOTONIC_TIME #endif -#define QEMU_CMD_MEM " -m %d -object memory-backend-file,id=mem,size=%dM,"\ +#define QEMU_CMD_MEM " -m %d -object memory-backend-file,id=mem,size=%dM," \ "mem-path=%s,share=on -numa node,memdev=mem" +#define QEMU_CMD_MEMFD " -m %d -object memory-backend-memfd,id=mem,size=%dM," \ + " -numa node,memdev=mem" #define QEMU_CMD_CHR " -chardev socket,id=%s,path=%s%s" #define QEMU_CMD_NETDEV " -netdev vhost-user,id=net0,chardev=%s,vhostforce" #define QEMU_CMD_NET " -device virtio-net-pci,netdev=net0" -#define QEMU_CMD QEMU_CMD_MEM QEMU_CMD_CHR \ - QEMU_CMD_NETDEV QEMU_CMD_NET - -#define GET_QEMU_CMD(s) \ - g_strdup_printf(QEMU_CMD, 512, 512, (root), (s)->chr_name, \ - (s)->socket_path, "", (s)->chr_name) - -#define GET_QEMU_CMDE(s, mem, chr_opts, extra, ...) \ - g_strdup_printf(QEMU_CMD extra, (mem), (mem), (root), (s)->chr_name, \ - (s)->socket_path, (chr_opts), (s)->chr_name, ##__VA_ARGS__) - #define HUGETLBFS_MAGIC 0x958458f6 /*********** FROM hw/virtio/vhost-user.c *************************************/ @@ -174,6 +166,33 @@ static void test_server_listen(TestServer *server); static const char *tmpfs; static const char *root; +enum test_memfd { + TEST_MEMFD_AUTO, + TEST_MEMFD_YES, + TEST_MEMFD_NO, +}; + +static char *get_qemu_cmd(TestServer *s, + int mem, enum test_memfd memfd, const char *mem_path, + const char *chr_opts, const char *extra) +{ + if (memfd == TEST_MEMFD_AUTO && qemu_memfd_check()) { + memfd = TEST_MEMFD_YES; + } + + if (memfd == TEST_MEMFD_YES) { + return g_strdup_printf(QEMU_CMD_MEMFD QEMU_CMD_CHR + QEMU_CMD_NETDEV QEMU_CMD_NET "%s", mem, mem, + s->chr_name, s->socket_path, + chr_opts, s->chr_name, extra); + } else { + return g_strdup_printf(QEMU_CMD_MEM QEMU_CMD_CHR + QEMU_CMD_NETDEV QEMU_CMD_NET "%s", mem, mem, + mem_path, s->chr_name, s->socket_path, + chr_opts, s->chr_name, extra); + } +} + static void init_virtio_dev(TestServer *s, uint32_t features_mask) { uint32_t features; @@ -639,8 +658,9 @@ GSourceFuncs test_migrate_source_funcs = { .check = test_migrate_source_check, }; -static void test_read_guest_mem(void) +static void test_read_guest_mem(const void *arg) { + enum test_memfd memfd = GPOINTER_TO_INT(arg); TestServer *server = NULL; char *qemu_cmd = NULL; QTestState *s = NULL; @@ -648,7 +668,7 @@ static void test_read_guest_mem(void) server = test_server_new("test"); test_server_listen(server); - qemu_cmd = GET_QEMU_CMD(server); + qemu_cmd = get_qemu_cmd(server, 512, memfd, root, "", ""); s = qtest_start(qemu_cmd); g_free(qemu_cmd); @@ -670,7 +690,7 @@ static void test_migrate(void) char *uri = g_strdup_printf("%s%s", "unix:", dest->mig_path); QTestState *global = global_qtest, *from, *to; GSource *source; - gchar *cmd; + gchar *cmd, *tmp; QDict *rsp; guint8 *log; guint64 size; @@ -678,7 +698,7 @@ static void test_migrate(void) test_server_listen(s); test_server_listen(dest); - cmd = GET_QEMU_CMDE(s, 2, "", ""); + cmd = get_qemu_cmd(s, 2, TEST_MEMFD_AUTO, root, "", ""); from = qtest_start(cmd); g_free(cmd); @@ -687,7 +707,9 @@ static void test_migrate(void) size = get_log_size(s); g_assert_cmpint(size, ==, (2 * 1024 * 1024) / (VHOST_LOG_PAGE * 8)); - cmd = GET_QEMU_CMDE(dest, 2, "", " -incoming %s", uri); + tmp = g_strdup_printf(" -incoming %s", uri); + cmd = get_qemu_cmd(dest, 2, TEST_MEMFD_AUTO, root, "", tmp); + g_free(tmp); to = qtest_init(cmd); g_free(cmd); @@ -800,7 +822,7 @@ static void test_reconnect_subprocess(void) char *cmd; g_thread_new("connect", connect_thread, s); - cmd = GET_QEMU_CMDE(s, 2, ",server", ""); + cmd = get_qemu_cmd(s, 2, TEST_MEMFD_AUTO, root, ",server", ""); qtest_start(cmd); g_free(cmd); @@ -838,7 +860,7 @@ static void test_connect_fail_subprocess(void) s->test_fail = true; g_thread_new("connect", connect_thread, s); - cmd = GET_QEMU_CMDE(s, 2, ",server", ""); + cmd = get_qemu_cmd(s, 2, TEST_MEMFD_AUTO, root, ",server", ""); qtest_start(cmd); g_free(cmd); @@ -868,7 +890,7 @@ static void test_flags_mismatch_subprocess(void) s->test_flags = TEST_FLAGS_DISCONNECT; g_thread_new("connect", connect_thread, s); - cmd = GET_QEMU_CMDE(s, 2, ",server", ""); + cmd = get_qemu_cmd(s, 2, TEST_MEMFD_AUTO, root, ",server", ""); qtest_start(cmd); g_free(cmd); @@ -903,11 +925,21 @@ static void test_multiqueue(void) s->queues = 2; test_server_listen(s); - cmd = g_strdup_printf(QEMU_CMD_MEM QEMU_CMD_CHR QEMU_CMD_NETDEV ",queues=%d " - "-device virtio-net-pci,netdev=net0,mq=on,vectors=%d", - 512, 512, root, s->chr_name, - s->socket_path, "", s->chr_name, - s->queues, s->queues * 2 + 2); + if (qemu_memfd_check()) { + cmd = g_strdup_printf( + QEMU_CMD_MEMFD QEMU_CMD_CHR QEMU_CMD_NETDEV ",queues=%d " + "-device virtio-net-pci,netdev=net0,mq=on,vectors=%d", + 512, 512, s->chr_name, + s->socket_path, "", s->chr_name, + s->queues, s->queues * 2 + 2); + } else { + cmd = g_strdup_printf( + QEMU_CMD_MEM QEMU_CMD_CHR QEMU_CMD_NETDEV ",queues=%d " + "-device virtio-net-pci,netdev=net0,mq=on,vectors=%d", + 512, 512, root, s->chr_name, + s->socket_path, "", s->chr_name, + s->queues, s->queues * 2 + 2); + } qtest_start(cmd); g_free(cmd); @@ -953,7 +985,13 @@ int main(int argc, char **argv) /* run the main loop thread so the chardev may operate */ thread = g_thread_new(NULL, thread_function, loop); - qtest_add_func("/vhost-user/read-guest-mem", test_read_guest_mem); + if (qemu_memfd_check()) { + qtest_add_data_func("/vhost-user/read-guest-mem/memfd", + GINT_TO_POINTER(TEST_MEMFD_YES), + test_read_guest_mem); + } + qtest_add_data_func("/vhost-user/read-guest-mem/memfile", + GINT_TO_POINTER(TEST_MEMFD_NO), test_read_guest_mem); qtest_add_func("/vhost-user/migrate", test_migrate); qtest_add_func("/vhost-user/multiqueue", test_multiqueue); -- 1.8.3.1