From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 E78B930D04 for ; Tue, 7 Nov 2023 14:55:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="JHdUPKLA" Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 183ED11C for ; Tue, 7 Nov 2023 06:55:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1699368944; 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: in-reply-to:in-reply-to:references:references; bh=QiSVy1pXRSo5MmppHuXGQ+MP2WzuNcVblg0LwRCEErU=; b=JHdUPKLAc5Ge2OZd8F8jqUgc9GaQ3l/ik2+YD7Eh9AsOldH6pP3VEu5tgXSHWf/rfU2FB4 huDdztQ648c+Dc5uT92fSdjmnos5H2HdwNGfEze6lGIaqI5bieVxdd2wRZRNFq8NRtD1US BibOFh8pVI2NyZAFCUKTT+GWbGENE8A= Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-277-50i4Fx2pMGydqgtQ1ps_Iw-1; Tue, 07 Nov 2023 09:55:32 -0500 X-MC-Unique: 50i4Fx2pMGydqgtQ1ps_Iw-1 Received: by mail-wm1-f71.google.com with SMTP id 5b1f17b1804b1-408597a1ae3so36454735e9.0 for ; Tue, 07 Nov 2023 06:55:32 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699368931; x=1699973731; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=QiSVy1pXRSo5MmppHuXGQ+MP2WzuNcVblg0LwRCEErU=; b=Mq0uqg7nEjT4GHK4rLNdOUXNABGKRsPaSL33Tg6cKJMXlAUlPYkG1FIC/kaOEtviun mp1+nqxFpAI1qpQej7TE+vW1Sb2p3a5R74yOFbxR7nAk6gHSBZaHZr1yl+10uWIRwVh1 AR3qjkl7encXlpFQDgqFpvOwLicJ0kqI9G1aNtvIDZE7OYLHMBh6mA7rp92D1t2Y+o/b zCgjcUM6JLC6ewghVgXEIdt7pX6O/uVH11/IoPz+2xxNVU59h+Hc7hzF+F+c+uZ/fF67 sFhCZzWZjM+vSKBjZpdDMTW7jgDNUFz/6gDfBZvNaubrIDKSdBc/c9nIqiGl0wLwowHf fAVg== X-Gm-Message-State: AOJu0YwsjhLslDk17QN1zoLtKo9Q+SWvQGSC8+t2oJNw/ZE/gxg6VB3q vgnZA0XUHpdRPpL2sUb4x1l9rRZbrokWH0Wc6YZobofmIWROA/i54nvzkwAxe7yJIVbXTBF+t2u vAk0sdsMqcIaxSGkgdALt3QDL X-Received: by 2002:a05:600c:4687:b0:401:bcd9:4871 with SMTP id p7-20020a05600c468700b00401bcd94871mr2498496wmo.21.1699368930994; Tue, 07 Nov 2023 06:55:30 -0800 (PST) X-Google-Smtp-Source: AGHT+IHzbMM8W1j1GgoDZM90c2d8/HJ8vQIG2CKZzYqMIhxHMdsZxgqX9hfyV1Tq0rIL8huNSNR6FA== X-Received: by 2002:a05:600c:4687:b0:401:bcd9:4871 with SMTP id p7-20020a05600c468700b00401bcd94871mr2498480wmo.21.1699368930620; Tue, 07 Nov 2023 06:55:30 -0800 (PST) Received: from redhat.com ([2a02:14f:1f1:373a:140:63a8:a31c:ab2a]) by smtp.gmail.com with ESMTPSA id o5-20020a056000010500b00327bf4f2f14sm2556719wrx.88.2023.11.07.06.55.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Nov 2023 06:55:29 -0800 (PST) Date: Tue, 7 Nov 2023 09:55:26 -0500 From: "Michael S. Tsirkin" To: Jason Gunthorpe Cc: Cindy Lu , jasowang@redhat.com, yi.l.liu@intel.com, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org Subject: Re: [RFC v1 0/8] vhost-vdpa: add support for iommufd Message-ID: <20231107094818-mutt-send-email-mst@kernel.org> References: <20231103171641.1703146-1-lulu@redhat.com> <20231107022847-mutt-send-email-mst@kernel.org> <20231107124902.GJ4488@nvidia.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231107124902.GJ4488@nvidia.com> On Tue, Nov 07, 2023 at 08:49:02AM -0400, Jason Gunthorpe wrote: > IMHO, this patch series needs to spend more time internally to Red Hat > before it is presented to the community. Just to add an example why I think this "internal review" is a bad idea I seem to recall that someone internal to nvidia at some point attempted to implement this already. The only output from that work we have is that "it's tough" - no pointers to what's tough, no code to study even as a bad path to follow. And while Red Hat might be big, the virt team is rather smaller. -- MST