From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0CFCA158A31; Thu, 24 Oct 2024 16:06:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.176.79.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729785989; cv=none; b=oWYxqqJuh0MHZl7Oci1XnExQ0y+L5w334g8fVe1pH00NLD/WIU4F3qxS8N8nX/Cv52QR/S5VeCUSxf8oADZMgN5VSzOGnb9ADn+kaINnijGY0Ix/7N8x0ArGxTAOjDJxDaZa6ARBa8m0fAXh9qNEQsHNtms+2Xgo81x+X3A07hY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729785989; c=relaxed/simple; bh=kaZBkio4UH/+/ON9NRJBBr0xVx14/nXK7f1ZHT8Lb74=; h=From:To:CC:Subject:Date:Message-ID:References:In-Reply-To: Content-Type:MIME-Version; b=sESfTsxf62FPczjK0omJbIqODuH6wV8mAi5hHrvyJHqaxhQNZDQn8RpP2cqialTs34YUgrW0ffom8O70HyMMN4BfzF+9Wm5imqxvIlz7BJFcZJkaEAIPbQMnpHD5bfLna2quc1WGiWd6HmGWwgppJQOcyGtYPwsVlwyvVfFchbk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=185.176.79.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.18.186.231]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4XZ9js1JzXz6K9K7; Fri, 25 Oct 2024 00:05:21 +0800 (CST) Received: from frapeml100007.china.huawei.com (unknown [7.182.85.133]) by mail.maildlp.com (Postfix) with ESMTPS id 6B1191404F5; Fri, 25 Oct 2024 00:06:22 +0800 (CST) Received: from frapeml500008.china.huawei.com (7.182.85.71) by frapeml100007.china.huawei.com (7.182.85.133) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Thu, 24 Oct 2024 18:06:22 +0200 Received: from frapeml500008.china.huawei.com ([7.182.85.71]) by frapeml500008.china.huawei.com ([7.182.85.71]) with mapi id 15.01.2507.039; Thu, 24 Oct 2024 18:06:22 +0200 From: Shameerali Kolothum Thodi To: Jason Gunthorpe CC: liulongfang , "alex.williamson@redhat.com" , Jonathan Cameron , "kvm@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linuxarm@openeuler.org" Subject: RE: [PATCH v10 0/4] debugfs to hisilicon migration driver Thread-Topic: [PATCH v10 0/4] debugfs to hisilicon migration driver Thread-Index: AQHbH2oB0l11SSHpU0u1ubTVKcydHLKV7z/ggAAC9oCAACrmAA== Date: Thu, 24 Oct 2024 16:06:22 +0000 Message-ID: <5d0a9221a3b84ea88d2f77197f913091@huawei.com> References: <20241016012308.14108-1-liulongfang@huawei.com> <3ede2cf97ffd4dd6948aa06084a09d2d@huawei.com> <20241024152749.GB6956@nvidia.com> In-Reply-To: <20241024152749.GB6956@nvidia.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 > -----Original Message----- > From: Jason Gunthorpe > Sent: Thursday, October 24, 2024 4:28 PM > To: Shameerali Kolothum Thodi > Cc: liulongfang ; alex.williamson@redhat.com; > Jonathan Cameron ; > kvm@vger.kernel.org; linux-kernel@vger.kernel.org; > linuxarm@openeuler.org > Subject: Re: [PATCH v10 0/4] debugfs to hisilicon migration driver >=20 > On Thu, Oct 24, 2024 at 01:18:55PM +0000, Shameerali Kolothum Thodi > wrote: > > > Add a debugfs function to the hisilicon migration driver in VFIO to > > > provide intermediate state values and data during device migration. > > > > > > When the execution of live migration fails, the user can view the > > > status and data during the migration process separately from the > > > source and the destination, which is convenient for users to analyze > > > and locate problems. > > > > Could you please take another look at this series as it looks like almo= st > there. >=20 > Why are we so keen to do this? Nobody else needed a complex debugfs for > their live migration? I don't think it is that complex debugfs. Longfang has found this very hel= pful in testing and debug with hardware.=20 And hopefully this can be expanded in future with different hardware revisi= ons. Thanks, Shameer