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[83.51.162.1]) by smtp.gmail.com with ESMTPSA id d201sm13353323wmd.34.2020.06.25.11.48.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Jun 2020 11:48:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1593110933; 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=vQ6c0CyjjoCdHr4XROOCTHk87bmAQz91kRF02NzcbuY=; b=doMsI7QAPkM2ccU+wa5EFLC9b1SA6yDgDkZT9V8sZ1v9cnSc2cGRKJqX0i64AGo/a+uACM B+1qNVGEJlq8t5S0uC614zoGKcm+6wOyX0LXc1qFOW/T0CqpsggzVL+GdaiS3hoMFfLZUb xfKmHb4cqUvFKo+4TEvqnahNrOtdQP0= X-MC-Unique: R91-rndePDWreOKgZe0T6g-1 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=vQ6c0CyjjoCdHr4XROOCTHk87bmAQz91kRF02NzcbuY=; b=pp97AAnfF1qDzvm+bVq1jBPbyHjKguuUq0fjU5rgK6RTAyhWQvL+N4DlV3dIeb9Oxv 70TqWgLaTjPu5WdqF7hbWm7ULOHKG7sSX6Ph3eFRcKU5FZ83fvpIA7On8fKaFzq6dz7B KYNcO2R98oPf2+hmZvdpxwbakpRUQZqXIIZ5HvjALjO6i5B5CHyrhcbKN1sBcfVK/SHM siuSHGjLXDA57xNeWJ7GkbZeuWlb7x7sIFjcLCs45MXB7n89SRexQoFEjLYl5Whl7f7m V55XCuUFUjm5P/JNKrZJ3MdgGIRaQwTEMhPe4gRQfIHl4CWQuvz4C+7s3dvjIHkgathJ p35w== X-Gm-Message-State: AOAM531B0gJKyyJP1fIyLIcr3MhgQnijgNJlpBY/jZaHry/mvk4idpBN obrsffFDdpzn+3NOhncE4AF+gxMDG6hYPc4ZDrmaekyespHtaYDJRyMcQqEtKtiJH7n3x0BnAU/ IZkr2y7/0EN9+cVk= X-Received: by 2002:a5d:4b4f:: with SMTP id w15mr16756720wrs.84.1593110930146; Thu, 25 Jun 2020 11:48:50 -0700 (PDT) X-Google-Smtp-Source: ABdhPJx0SVV+5TXqKTHuoUbKpT5QSyAfugCpdL0rBfSXC1w9+gEwZWxYjC9lHVd6if2zsfwH4LX+wQ== X-Received: by 2002:a5d:4b4f:: with SMTP id w15mr16756704wrs.84.1593110930015; Thu, 25 Jun 2020 11:48:50 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org, Stefan Hajnoczi Subject: [PATCH 02/17] block/nvme: Let nvme_create_queue_pair() fail gracefully Date: Thu, 25 Jun 2020 20:48:23 +0200 Message-Id: <20200625184838.28172-3-philmd@redhat.com> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20200625184838.28172-1-philmd@redhat.com> References: <20200625184838.28172-1-philmd@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8"; text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=207.211.31.81; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/25 02:30:11 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 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_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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 , Kevin Wolf , qemu-block@nongnu.org, Max Reitz , Maxim Levitsky , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) As nvme_create_queue_pair() is allowed to fail, replace the alloc() calls by try_alloc() to avoid aborting QEMU. Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Stefan Hajnoczi --- block/nvme.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/block/nvme.c b/block/nvme.c index 1e5b40f61c..ec0dd21b6e 100644 --- a/block/nvme.c +++ b/block/nvme.c @@ -194,13 +194,21 @@ static NVMeQueuePair *nvme_create_queue_pair(BlockDri= verState *bs, int i, r; BDRVNVMeState *s =3D bs->opaque; Error *local_err =3D NULL; - NVMeQueuePair *q =3D g_new0(NVMeQueuePair, 1); + NVMeQueuePair *q; uint64_t prp_list_iova; =20 + q =3D g_try_new0(NVMeQueuePair, 1); + if (!q) { + return NULL; + } + q->prp_list_pages =3D qemu_try_blockalign0(bs, + s->page_size * NVME_QUEUE_SIZE); + if (!q->prp_list_pages) { + goto fail; + } qemu_mutex_init(&q->lock); q->index =3D idx; qemu_co_queue_init(&q->free_req_queue); - q->prp_list_pages =3D qemu_blockalign0(bs, s->page_size * NVME_QUEUE_S= IZE); r =3D qemu_vfio_dma_map(s->vfio, q->prp_list_pages, s->page_size * NVME_QUEUE_SIZE, false, &prp_list_iova); --=20 2.21.3