From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 682E3C6FA8F for ; Wed, 30 Aug 2023 13:40:46 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qbLQt-0007ES-AF; Wed, 30 Aug 2023 09:40:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qbLQm-00071r-1l for qemu-devel@nongnu.org; Wed, 30 Aug 2023 09:40:25 -0400 Received: from mail-wm1-x32e.google.com ([2a00:1450:4864:20::32e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qbLQi-0007Z6-0b for qemu-devel@nongnu.org; Wed, 30 Aug 2023 09:40:23 -0400 Received: by mail-wm1-x32e.google.com with SMTP id 5b1f17b1804b1-3ff1c397405so54982215e9.3 for ; Wed, 30 Aug 2023 06:40:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1693402817; x=1694007617; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:in-reply-to:date :subject:cc:to:from:user-agent:references:from:to:cc:subject:date :message-id:reply-to; bh=LFrOhKabnRctXDAtnKNqP3QF62HqkwnyAFa2BuN6wNI=; b=NrdTy3DudEC/KkZbhAQ+lkfwOLw3SEVP/v5Ll4tuWPTM5I5vNWnB7fEdhM+tKsQey2 C5qPc8YeUshpAN7KWf/CrgkS4cHhupK1N5ZAPfKm5PeiH0v+IwRNDDj/ZsSTjzhkcTDD KlXAykJNxFxQwHPzCT8mAhFIdTnED9nHUYQl4XozYDE/zZZ0NZhdCBY/x1qIsKzoKmuc xOV7hM04Zml3h7duOz/gn8WykykZTLpVtLOGAZ10njrFPOT7VaAwDrXF+7PCo0eB0VnW R0dXj8GVO21OBAsABrHSSGPAUcgmPkMHN9RJaOvYPQzJ5xlCM9ReJlSn0t/3Oaavj44J jzJA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693402817; x=1694007617; h=content-transfer-encoding:mime-version:message-id:in-reply-to:date :subject:cc:to:from:user-agent:references:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=LFrOhKabnRctXDAtnKNqP3QF62HqkwnyAFa2BuN6wNI=; b=L8mK4lgW/XaG0xr7Y4W0ZmqS/gSsjoJLHwhLxyt/772F+WJTEnqH7ajohxGmrxGhfM oGsFvA95jziBMGChl3jley91UBBj8bnwtgUSd0lvbiM4t4Ck/W1nMnVaW/jEU+CN5lBO lF/SCCocDOWOksGMiRaDagbECplikOfMrpLhNHSyhG+uGiaz3tZPP8y1PoIMcTCEQA3Q 0nDkA+A/oVlVsXBsq6BVvfubl1KSAPokeZu1nV2kFdwn2d1n+EOC9sbq16hNcH9fP/cB ezsasa96HHh0JOXtHkG/5krkkzPcxMi776Xj1bpT/V4SNoajzS6LnGwLIVqWZeU6kvVJ psYg== X-Gm-Message-State: AOJu0YzldnujhDjXIOFKE7REvC2XGz2tRWYn6xJ6dNBcyvivrYOo/TVv Okh0CO7cWefdJ9YVlWJ9bVlJBg== X-Google-Smtp-Source: AGHT+IEBMI1C6viEsovDRGCbcF4z0Lre+LYqTrqRGVA48lKNyu5tKB44xAY9wpHhPz5Z53snaDIJSw== X-Received: by 2002:a05:600c:28b:b0:401:daf2:2737 with SMTP id 11-20020a05600c028b00b00401daf22737mr1948893wmk.30.1693402817314; Wed, 30 Aug 2023 06:40:17 -0700 (PDT) Received: from zen.linaroharston ([85.9.250.243]) by smtp.gmail.com with ESMTPSA id m9-20020a05600c280900b00401df304a7esm2317134wmb.28.2023.08.30.06.40.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Aug 2023 06:40:17 -0700 (PDT) Received: from zen (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 982F01FFBB; Wed, 30 Aug 2023 14:40:16 +0100 (BST) References: <9a85da0dde1ff77021909e05b992bcdc76914eb1.1693252037.git.manos.pitsidianakis@linaro.org> User-agent: mu4e 1.11.16; emacs 29.1.50 From: Alex =?utf-8?Q?Benn=C3=A9e?= To: Emmanouil Pitsidianakis Cc: qemu-devel@nongnu.org, Igor Skalkin , Anton Yakovlev , Paolo Bonzini , Gerd Hoffmann , "Michael S. Tsirkin" , Marcel Apfelbaum , =?utf-8?Q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , =?utf-8?Q?Marc-Andr=C3=A9?= Lureau , Volker =?utf-8?Q?R=C3=BCmelin?= , =?utf-8?B?S8WRdsOh?= =?utf-8?B?Z8OzLCBab2x0w6Fu?= , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= Subject: Re: [PATCH v8 11/12] virtio-sound: implement audio capture (RX) Date: Wed, 30 Aug 2023 14:40:11 +0100 In-reply-to: <9a85da0dde1ff77021909e05b992bcdc76914eb1.1693252037.git.manos.pitsidianakis@linaro.org> Message-ID: <878r9ssl6n.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::32e; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x32e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Emmanouil Pitsidianakis writes: > To perform audio capture we duplicate the TX logic of the previous > commit with the following difference: we receive data from the QEMU > audio backend and write it in the virt queue IO buffers the guest sends > to QEMU. When they are full (i.e. they have `period_bytes` amount of > data) or when recording stops in QEMU's audio backend, the buffer is > returned to the guest by notifying it. > > Signed-off-by: Emmanouil Pitsidianakis > Reviewed-by: Alex Benn=C3=A9e --=20 Alex Benn=C3=A9e Virtualisation Tech Lead @ Linaro