From patchwork Fri Sep 3 17:39:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 12474819 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DE3FCC433EF for ; Fri, 3 Sep 2021 17:43:12 +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 4301661100 for ; Fri, 3 Sep 2021 17:43:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4301661100 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:44170 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mMDDb-0004Q2-Fm for qemu-devel@archiver.kernel.org; Fri, 03 Sep 2021 13:43:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50172) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mMDAs-0002Mb-AT for qemu-devel@nongnu.org; Fri, 03 Sep 2021 13:40:22 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:46228) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mMDAp-0004uD-Lq for qemu-devel@nongnu.org; Fri, 03 Sep 2021 13:40:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1630690818; 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=K59TWFNfhgS3efbWdzQjx6xmDgV9ebFReZvuleU1Sck=; b=IT49c8g6oFZKnh4hs79alpi7AWXbxkKYZfawnzMMrvPvkWagdrPut1o7N6/iQBLOfrOES5 GsRT0zF/zzwhyt3tE0ISdb17vjy/pbmOJSkxxw63Z/tK/aJZ2wuq91rt70G7bUJ+8Iz3Qw xyEkAaQucmuHrfLatH0JSphtrfccL/k= Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-200-xqFkkwCIN2K-dw-rhqCtcA-1; Fri, 03 Sep 2021 13:40:17 -0400 X-MC-Unique: xqFkkwCIN2K-dw-rhqCtcA-1 Received: by mail-wm1-f71.google.com with SMTP id x125-20020a1c3183000000b002e73f079eefso64669wmx.0 for ; Fri, 03 Sep 2021 10:40:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=K59TWFNfhgS3efbWdzQjx6xmDgV9ebFReZvuleU1Sck=; b=qszB0ApKkLJ6++Z/hwted0ac5iw0CYPwJELHJLQBLOKm33M+PLCMzYI35ir4rOS7iY Vt7Du7iBUYoH5Q9BAvIUzMIlUXChLxHQ7RALeqgkZ+ezczNtL0KOy+0/hfoZjuCMas7h PPp28w2vyRQnudHW7m0k/lFhnF7+tjLS8c/+2M/rZ8S/tgvvy9dRdZgJ99V7SYwnKGJA jzh9kDlH7WCmP7i/2GV9G/F1iZzLfXaj6rQ+FO714yhbydF4l3wTx1rr8uDMtblnYISr Hl7R0e5MAzIAVYE9U30N+LaOR6tTaBO5SdVaceSbxrHZVixUazfsS+677iA758v3Xc8K Z00g== X-Gm-Message-State: AOAM5320zHEVficdemUALe4EePZVNF/CpG0b88rfOuzr4emGgDGsmKVZ UpuzXuSZf9OEk96Bt9e5oAKiBEiyMokoV1SjbnvlZAGPSYOLLyUy/OyhGtY3+YH2wI1wv5/G4ug lvfd+5qmkQl6/9rQUN+Pb/iWqd2r6KZ8JihagjwMfTlw2b6gsBa9+QAv2xasQpMp0 X-Received: by 2002:a5d:618f:: with SMTP id j15mr279370wru.80.1630690815710; Fri, 03 Sep 2021 10:40:15 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzQ8ltCxCGPrsfZc1qSqxdxCnJ5muEt8bAzrDH8cwMXP+ogfAkDYo822ywwAfB2z4cvfOIDew== X-Received: by 2002:a5d:618f:: with SMTP id j15mr279319wru.80.1630690815396; Fri, 03 Sep 2021 10:40:15 -0700 (PDT) Received: from x1w.. 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[83.52.55.21]) by smtp.gmail.com with ESMTPSA id l15sm46863wms.38.2021.09.03.10.40.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Sep 2021 10:40:14 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH v2 01/30] hw/hyperv/vmbus: Remove unused vmbus_load/save_req() Date: Fri, 3 Sep 2021 19:39:39 +0200 Message-Id: <20210903174008.749126-2-philmd@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210903174008.749126-1-philmd@redhat.com> References: <20210903174008.749126-1-philmd@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.133.124; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.392, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, 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: Fam Zheng , Peter Maydell , "Michael S. Tsirkin" , Jason Wang , Christian Schoenebeck , Gerd Hoffmann , Eric Blake , qemu-block@nongnu.org, John Snow , David Hildenbrand , Markus Armbruster , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Laurent Vivier , Thomas Huth , Eduardo Habkost , Richard Henderson , Alex Williamson , qemu-arm@nongnu.org, =?utf-8?q?Alex_Benn=C3=A9e?= , David Gibson , Kevin Wolf , Vladimir Sementsov-Ogievskiy , "Daniel P . Berrange" , Hanna Reitz , qemu-ppc@nongnu.org, Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" vmbus_save_req() and vmbus_load_req() are not used. Remove them to avoid maintaining dead code. Signed-off-by: Philippe Mathieu-Daudé --- include/hw/hyperv/vmbus.h | 3 -- hw/hyperv/vmbus.c | 59 --------------------------------------- 2 files changed, 62 deletions(-) diff --git a/include/hw/hyperv/vmbus.h b/include/hw/hyperv/vmbus.h index f98bea3888d..8ea660dd8e6 100644 --- a/include/hw/hyperv/vmbus.h +++ b/include/hw/hyperv/vmbus.h @@ -223,7 +223,4 @@ int vmbus_map_sgl(VMBusChanReq *req, DMADirection dir, struct iovec *iov, void vmbus_unmap_sgl(VMBusChanReq *req, DMADirection dir, struct iovec *iov, unsigned iov_cnt, size_t accessed); -void vmbus_save_req(QEMUFile *f, VMBusChanReq *req); -void *vmbus_load_req(QEMUFile *f, VMBusDevice *dev, uint32_t size); - #endif diff --git a/hw/hyperv/vmbus.c b/hw/hyperv/vmbus.c index c9887d5a7bc..18d3c3b9240 100644 --- a/hw/hyperv/vmbus.c +++ b/hw/hyperv/vmbus.c @@ -1311,65 +1311,6 @@ static const VMStateDescription vmstate_vmbus_chan_req = { } }; -void vmbus_save_req(QEMUFile *f, VMBusChanReq *req) -{ - VMBusChanReqSave req_save; - - req_save.chan_idx = req->chan->subchan_idx; - req_save.pkt_type = req->pkt_type; - req_save.msglen = req->msglen; - req_save.msg = req->msg; - req_save.transaction_id = req->transaction_id; - req_save.need_comp = req->need_comp; - req_save.num = req->sgl.nsg; - req_save.sgl = g_memdup(req->sgl.sg, - req_save.num * sizeof(ScatterGatherEntry)); - - vmstate_save_state(f, &vmstate_vmbus_chan_req, &req_save, NULL); - - g_free(req_save.sgl); -} - -void *vmbus_load_req(QEMUFile *f, VMBusDevice *dev, uint32_t size) -{ - VMBusChanReqSave req_save; - VMBusChanReq *req = NULL; - VMBusChannel *chan = NULL; - uint32_t i; - - vmstate_load_state(f, &vmstate_vmbus_chan_req, &req_save, 0); - - if (req_save.chan_idx >= dev->num_channels) { - error_report("%s: %u(chan_idx) > %u(num_channels)", __func__, - req_save.chan_idx, dev->num_channels); - goto out; - } - chan = &dev->channels[req_save.chan_idx]; - - if (vmbus_channel_reserve(chan, 0, req_save.msglen)) { - goto out; - } - - req = vmbus_alloc_req(chan, size, req_save.pkt_type, req_save.msglen, - req_save.transaction_id, req_save.need_comp); - if (req_save.msglen) { - memcpy(req->msg, req_save.msg, req_save.msglen); - } - - for (i = 0; i < req_save.num; i++) { - qemu_sglist_add(&req->sgl, req_save.sgl[i].base, req_save.sgl[i].len); - } - -out: - if (req_save.msglen) { - g_free(req_save.msg); - } - if (req_save.num) { - g_free(req_save.sgl); - } - return req; -} - static void channel_event_cb(EventNotifier *e) { VMBusChannel *chan = container_of(e, VMBusChannel, notifier); From patchwork Fri Sep 3 17:39:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 12474821 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6498C433F5 for ; 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[83.52.55.21]) by smtp.gmail.com with ESMTPSA id s12sm5394375wru.41.2021.09.03.10.40.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Sep 2021 10:40:20 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH v2 02/30] glib-compat: Introduce g_memdup2() wrapper Date: Fri, 3 Sep 2021 19:39:40 +0200 Message-Id: <20210903174008.749126-3-philmd@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210903174008.749126-1-philmd@redhat.com> References: <20210903174008.749126-1-philmd@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.392, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: Fam Zheng , Peter Maydell , "Michael S. Tsirkin" , Jason Wang , Christian Schoenebeck , Gerd Hoffmann , Eric Blake , qemu-block@nongnu.org, John Snow , David Hildenbrand , Markus Armbruster , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Laurent Vivier , Thomas Huth , Eduardo Habkost , Richard Henderson , Alex Williamson , qemu-arm@nongnu.org, =?utf-8?q?Alex_Benn=C3=A9e?= , David Gibson , Kevin Wolf , Vladimir Sementsov-Ogievskiy , "Daniel P . Berrange" , Hanna Reitz , qemu-ppc@nongnu.org, Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" When experimenting raising GLIB_VERSION_MIN_REQUIRED to 2.68 (Fedora 34 provides GLib 2.68.1) we get: hw/virtio/virtio-crypto.c:245:24: error: 'g_memdup' is deprecated: Use 'g_memdup2' instead [-Werror,-Wdeprecated-declarations] ... g_memdup() has been updated by g_memdup2() to fix eventual security issues (size argument is 32-bit and could be truncated / wrapping). GLib recommends to copy their static inline version of g_memdup2(): https://discourse.gnome.org/t/port-your-module-from-g-memdup-to-g-memdup2-now/5538 Our glib-compat.h provides a comment explaining how to deal with these deprecated declarations (see commit e71e8cc0355 "glib: enforce the minimum required version and warn about old APIs"). Following this comment suggestion, implement the g_memdup2_qemu() wrapper to g_memdup2(), and use the safer equivalent inlined when we are using pre-2.68 GLib. Reported-by: Eric Blake Signed-off-by: Philippe Mathieu-Daudé --- include/glib-compat.h | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/include/glib-compat.h b/include/glib-compat.h index 9e95c888f54..915d0156da0 100644 --- a/include/glib-compat.h +++ b/include/glib-compat.h @@ -68,6 +68,43 @@ * without generating warnings. */ +/* + * g_memdup2_qemu: + * @mem: (nullable): the memory to copy. + * @byte_size: the number of bytes to copy. + * + * Allocates @byte_size bytes of memory, and copies @byte_size bytes into it + * from @mem. If @mem is %NULL it returns %NULL. + * + * This replaces g_memdup(), which was prone to integer overflows when + * converting the argument from a #gsize to a #guint. + * + * This static inline version is a backport of the new public API from + * GLib 2.68, kept internal to GLib for backport to older stable releases. + * See https://gitlab.gnome.org/GNOME/glib/-/issues/2319. + * + * Returns: (nullable): a pointer to the newly-allocated copy of the memory, + * or %NULL if @mem is %NULL. + */ +static inline gpointer g_memdup2_qemu(gconstpointer mem, gsize byte_size) +{ +#if GLIB_CHECK_VERSION(2, 68, 0) + return g_memdup2(mem, byte_size); +#else + gpointer new_mem; + + if (mem && byte_size != 0) { + new_mem = g_malloc(byte_size); + memcpy(new_mem, mem, byte_size); + } else { + new_mem = NULL; + } + + return new_mem; +#endif +} +#define g_memdup2(a) g_memdup2_qemu(a) + #if defined(G_OS_UNIX) /* * Note: The fallback implementation is not MT-safe, and it returns a copy of