From patchwork Thu Jul 23 17:46:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe de Dinechin X-Patchwork-Id: 11681425 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0FDC4722 for ; Thu, 23 Jul 2020 17:49:24 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CA075207BB for ; Thu, 23 Jul 2020 17:49:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ZHSyvRTV" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CA075207BB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:51560 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jyfLP-0001SQ-4N for patchwork-qemu-devel@patchwork.kernel.org; Thu, 23 Jul 2020 13:49:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43636) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jyfJS-0005zX-Jz for qemu-devel@nongnu.org; Thu, 23 Jul 2020 13:47:22 -0400 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:46499 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jyfJQ-0004Em-AN for qemu-devel@nongnu.org; Thu, 23 Jul 2020 13:47:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1595526439; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4s0E4sntKbvJMM+adqRledjO1J+SAgFxPLSD8U8vZXM=; b=ZHSyvRTVmKIHDo1lmOLePToy7M59NaYCch2YUwSi5VYdCEMa6Bsja32O85zB7CFAsVjM4Y TfAqZ6u3329w7ukC8/sHOqbaLusxftDupvRuP7LgsU08gsUGjpXQ17FmSN7nOOAjYzzQab FbfFDFOIoEBy9oxR0p6k6mX+2C/3GDs= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-130-8ZLwz8RLMt6xsq9PwCW5kA-1; Thu, 23 Jul 2020 13:47:15 -0400 X-MC-Unique: 8ZLwz8RLMt6xsq9PwCW5kA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 773B0800688; Thu, 23 Jul 2020 17:47:14 +0000 (UTC) Received: from turbo.com (ovpn-113-141.ams2.redhat.com [10.36.113.141]) by smtp.corp.redhat.com (Postfix) with ESMTP id 10CBB69325; Thu, 23 Jul 2020 17:47:11 +0000 (UTC) From: Christophe de Dinechin To: qemu-devel@nongnu.org, kraxel@redhat.com Subject: [PATCH 7/7] spice: Call qemu spice functions indirectly Date: Thu, 23 Jul 2020 19:46:15 +0200 Message-Id: <20200723174615.2370096-8-dinechin@redhat.com> In-Reply-To: <20200723174615.2370096-1-dinechin@redhat.com> References: <20200723174615.2370096-1-dinechin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.61; envelope-from=dinechin@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/23 02:33:29 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eduardo Habkost , "Michael S. Tsirkin" , "Dr. David Alan Gilbert" , Markus Armbruster , Paolo Bonzini , Cleber Rosa , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Richard Henderson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" In order to be able to move all of spice in a shared library that is loaded dynamically only on demand, this commit puts the functions called by the main binary in a QemuSpiceOps structure, and use static inline stubs to preserve the call sites. With these changes, the following shared libraries are no longer necessary in the top-level qemu binary when building with CONFIG_MDULES: libspice-server.so.1 => /lib64/libspice-server.so.1 (HEX) libopus.so.0 => /lib64/libopus.so.0 (HEX) liblz4.so.1 => /lib64/liblz4.so.1 (HEX) libgstapp-1.0.so.0 => /lib64/libgstapp-1.0.so.0 (HEX) libgstvideo-1.0.so.0 => /lib64/libgstvideo-1.0.so.0 (HEX) libgstbase-1.0.so.0 => /lib64/libgstbase-1.0.so.0 (HEX) libgstreamer-1.0.so.0 => /lib64/libgstreamer-1.0.so.0 (HEX) libssl.so.1.1 => /lib64/libssl.so.1.1 (HEX) liborc-0.4.so.0 => /lib64/liborc-0.4.so.0 (HEX) Signed-off-by: Christophe de Dinechin --- include/ui/qemu-spice.h | 74 +++++++++++++++++++---------------------- monitor/hmp-cmds.c | 13 ++++++++ monitor/misc.c | 2 +- monitor/qmp-cmds.c | 6 ++-- softmmu/vl.c | 28 ++++++++++++++-- ui/spice-core.c | 33 ++++++++++++++++-- 6 files changed, 107 insertions(+), 49 deletions(-) diff --git a/include/ui/qemu-spice.h b/include/ui/qemu-spice.h index d34cea2e0f..9721d8817e 100644 --- a/include/ui/qemu-spice.h +++ b/include/ui/qemu-spice.h @@ -25,21 +25,28 @@ #include #include "qemu/config-file.h" -extern int using_spice; +#define using_spice (qemu_spice.in_use()) -void qemu_spice_init(void); void qemu_spice_input_init(void); void qemu_spice_audio_init(void); -void qemu_spice_display_init(void); -int qemu_spice_display_add_client(int csock, int skipauth, int tls); int qemu_spice_add_interface(SpiceBaseInstance *sin); bool qemu_spice_have_display_interface(QemuConsole *con); int qemu_spice_add_display_interface(QXLInstance *qxlin, QemuConsole *con); + +#if !defined(CONFIG_MODULES) || defined(BUILD_DSO) +bool qemu_is_using_spice(void); +void qemu_start_using_spice(void); +void qemu_spice_init(void); +void qemu_spice_display_init(void); +int qemu_spice_display_add_client(int csock, int skipauth, int tls); int qemu_spice_set_passwd(const char *passwd, bool fail_if_connected, bool disconnect_if_connected); int qemu_spice_set_pw_expire(time_t expires); int qemu_spice_migrate_info(const char *hostname, int port, int tls_port, const char *subject); +struct SpiceInfo *qemu_spice_query(Error **errp); +#endif /* !CONFIG_MODULES || BUILD_DSO */ + #if !defined(SPICE_SERVER_VERSION) || (SPICE_SERVER_VERSION < 0xc06) #define SPICE_NEEDS_SET_MM_TIME 1 @@ -47,46 +54,33 @@ int qemu_spice_migrate_info(const char *hostname, int port, int tls_port, #define SPICE_NEEDS_SET_MM_TIME 0 #endif -#else /* CONFIG_SPICE */ - -#include "qemu/error-report.h" - -#define using_spice 0 -#define spice_displays 0 -static inline int qemu_spice_set_passwd(const char *passwd, - bool fail_if_connected, - bool disconnect_if_connected) -{ - return -1; -} -static inline int qemu_spice_set_pw_expire(time_t expires) -{ - return -1; -} -static inline int qemu_spice_migrate_info(const char *h, int p, int t, - const char *s) -{ - return -1; -} +#else /* !CONFIG_SPICE */ -static inline int qemu_spice_display_add_client(int csock, int skipauth, - int tls) -{ - return -1; -} +#define using_spice 0 -static inline void qemu_spice_display_init(void) -{ - /* This must never be called if CONFIG_SPICE is disabled */ - error_report("spice support is disabled"); - abort(); -} +#endif /* CONFIG_SPICE */ -static inline void qemu_spice_init(void) +/* Module high-level inteface for SPICE */ +struct QemuSpiceOps { -} - -#endif /* CONFIG_SPICE */ + bool (*in_use)(void); + void (*init)(void); + void (*display_init)(void); + int (*display_add_client)(int csock, int skipauth, int tls); + + int (*set_passwd)(const char *passwd, + bool fail_if_connected, + bool disconnect_if_connected); + int (*set_pw_expire)(time_t expires); + int (*migrate_info)(const char *hostname, + int port, int tls_port, + const char *subject); + struct SpiceInfo * (*query)(Error **errp); +}; +typedef struct QemuSpiceOps QemuSpiceOps; +void qemu_spice_ops_register(QemuSpiceOps *ops); + +extern struct QemuSpiceOps qemu_spice; static inline bool qemu_using_spice(Error **errp) { diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c index ae4b6a4246..8e10af188f 100644 --- a/monitor/hmp-cmds.c +++ b/monitor/hmp-cmds.c @@ -57,6 +57,7 @@ #ifdef CONFIG_SPICE #include +#include "ui/qemu-spice.h" #endif void hmp_handle_error(Monitor *mon, Error *err) @@ -573,6 +574,14 @@ void hmp_info_vnc(Monitor *mon, const QDict *qdict) #endif #ifdef CONFIG_SPICE +SpiceInfo *qmp_query_spice(Error **errp) +{ + if (!using_spice) { + return NULL; + } + return qemu_spice.query(errp); +} + void hmp_info_spice(Monitor *mon, const QDict *qdict) { SpiceChannelList *chan; @@ -599,6 +608,10 @@ void hmp_info_spice(Monitor *mon, const QDict *qdict) info = qmp_query_spice(NULL); + if (!info) { + monitor_printf(mon, "Server: not started\n"); + goto out; + } if (!info->enabled) { monitor_printf(mon, "Server: disabled\n"); goto out; diff --git a/monitor/misc.c b/monitor/misc.c index e847b58a8c..88f8915734 100644 --- a/monitor/misc.c +++ b/monitor/misc.c @@ -443,7 +443,7 @@ void qmp_client_migrate_info(const char *protocol, const char *hostname, return; } - if (qemu_spice_migrate_info(hostname, + if (qemu_spice.migrate_info(hostname, has_port ? port : -1, has_tls_port ? tls_port : -1, cert_subject)) { diff --git a/monitor/qmp-cmds.c b/monitor/qmp-cmds.c index 864cbfa32e..9f9822b3f3 100644 --- a/monitor/qmp-cmds.c +++ b/monitor/qmp-cmds.c @@ -196,7 +196,7 @@ void qmp_set_password(const char *protocol, const char *password, if (!qemu_using_spice(errp)) { return; } - rc = qemu_spice_set_passwd(password, fail_if_connected, + rc = qemu_spice.set_passwd(password, fail_if_connected, disconnect_if_connected); if (rc != 0) { error_setg(errp, QERR_SET_PASSWD_FAILED); @@ -242,7 +242,7 @@ void qmp_expire_password(const char *protocol, const char *whenstr, if (!qemu_using_spice(errp)) { return; } - rc = qemu_spice_set_pw_expire(when); + rc = qemu_spice.set_pw_expire(when); if (rc != 0) { error_setg(errp, QERR_SET_PASSWD_FAILED); } @@ -339,7 +339,7 @@ void qmp_add_client(const char *protocol, const char *fdname, } skipauth = has_skipauth ? skipauth : false; tls = has_tls ? tls : false; - if (qemu_spice_display_add_client(fd, skipauth, tls) < 0) { + if (qemu_spice.display_add_client(fd, skipauth, tls) < 0) { error_setg(errp, "spice failed to add client"); close(fd); } diff --git a/softmmu/vl.c b/softmmu/vl.c index bc0dcc4f58..8defda56c9 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -173,6 +173,30 @@ int icount_align_option; QemuUUID qemu_uuid; bool qemu_uuid_set; +static bool qemu_is_not_using_spice(void) +{ + return 0; +} + +static void qemu_spice_init_no_op(void) +{ +} + +/* + * Only two fields are initialized, that can be used even when SPICE + * is not configured or not loaded. Other functions are protected by + * checking if using_spice. + */ +QemuSpiceOps qemu_spice = { + .in_use = qemu_is_not_using_spice, + .init = qemu_spice_init_no_op, +}; + +void qemu_spice_ops_register(QemuSpiceOps *ops) +{ + memcpy(&qemu_spice, ops, sizeof(qemu_spice)); +} + static NotifierList exit_notifiers = NOTIFIER_LIST_INITIALIZER(exit_notifiers); @@ -4128,7 +4152,7 @@ void qemu_init(int argc, char **argv, char **envp) /* spice needs the timers to be initialized by this point */ /* spice must initialize before audio as it changes the default auiodev */ /* spice must initialize before chardevs (for spicevmc and spiceport) */ - qemu_spice_init(); + qemu_spice.init(); qemu_opts_foreach(qemu_find_opts("object"), user_creatable_add_opts_foreach, @@ -4424,7 +4448,7 @@ void qemu_init(int argc, char **argv, char **envp) #endif if (using_spice) { - qemu_spice_display_init(); + qemu_spice.display_init(); } if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) { diff --git a/ui/spice-core.c b/ui/spice-core.c index 37dd68f2ab..9d7ac70d92 100644 --- a/ui/spice-core.c +++ b/ui/spice-core.c @@ -48,7 +48,7 @@ static time_t auth_expires = TIME_MAX; static int spice_migration_completed; static int spice_display_is_running; static int spice_have_target_host; -int using_spice = 0; +static int is_using_spice; static QemuThread me; @@ -503,7 +503,7 @@ static QemuOptsList qemu_spice_opts = { }, }; -SpiceInfo *qmp_query_spice(Error **errp) +SpiceInfo *qemu_spice_query(Error **errp) { QemuOpts *opts = QTAILQ_FIRST(&qemu_spice_opts.head); int port, tls_port; @@ -634,6 +634,16 @@ static void vm_change_state_handler(void *opaque, int running, } } +bool qemu_is_using_spice(void) +{ + return is_using_spice; +} + +void qemu_start_using_spice(void) +{ + is_using_spice = 1; +} + void qemu_spice_init(void) { QemuOpts *opts = QTAILQ_FIRST(&qemu_spice_opts.head); @@ -796,7 +806,7 @@ void qemu_spice_init(void) error_report("failed to initialize spice server"); exit(1); }; - using_spice = 1; + qemu_start_using_spice(); migration_state.notify = migration_state_notifier; add_migration_state_change_notifier(&migration_state); @@ -1000,3 +1010,20 @@ static void spice_register_config(void) qemu_add_opts(&qemu_spice_opts); } opts_init(spice_register_config); + +static QemuSpiceOps qemu_spice_ops = { + .in_use = qemu_is_using_spice, + .init = qemu_spice_init, + .display_init = qemu_spice_display_init, + .display_add_client = qemu_spice_display_add_client, + .set_passwd = qemu_spice_set_passwd, + .set_pw_expire = qemu_spice_set_pw_expire, + .migrate_info = qemu_spice_migrate_info, + .query = qemu_spice_query, +}; + +static void spice_register_ops(void) +{ + qemu_spice_ops_register(&qemu_spice_ops); +} +type_init(spice_register_ops);