From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6C01A19E99E for ; Fri, 4 Apr 2025 21:48:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.74 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743803314; cv=none; b=iTLB0+5Mv8Zh717b9FOY4H8Aa4DOFSTLttDP1V4/E2hoxRe93VyrKLgi+vr3L/OsbdYgceCSHXArauEJ3lxhwQf8CMkBXk1jsMxORmmk4Q2x54nzgGBQLVN13+8ZNdi0flHkuIPQ9IWxyRCKP+/ir01elGcJrHEReeeWyEAQPgE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743803314; c=relaxed/simple; bh=0dmKkwKNseqfD2qXy02Zh4cyweoIQw5GpiuHXslkeaQ=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=I8gkFQ97KxE7YMfrp/FbqToaPOWi5LsYQnP7bu7PlzdhxtIidqWaynHjb9h0ZlxjQqgJCnq6drDxPKaNzAoVxXT8dG52IXYGOpmV5mhEg3/Xk0wKoFkF9XJ3D/syho32H2SW04dpAieiO/BYvt07nCgtBuGNKxRva2zpXANpyYE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=FBvfhNrM; arc=none smtp.client-ip=209.85.216.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="FBvfhNrM" Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-2ff7f9a0b9bso2364164a91.0 for ; Fri, 04 Apr 2025 14:48:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1743803313; x=1744408113; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=3cf9fSAlA9wA6PdkDcxtivqGkWoshv2pw9Tz3F/yjKA=; b=FBvfhNrMGEji1IVT03oAumisn1NUQow9p8lwSFBadfxEktIHNI2cKgnHpPEW482yNr XV05QTYGS3btx6ffLRRvwD5RTWB3D/GJ8ld1lpbALQJGfXscBQPvb4rGvhdDUVkKE3hL xDTqKThSEHh5Poxq47f0wm44/Rkn+vykwEabhR53qco0JtgI/nN/vdKOxlbCw98+QQlR 8w1TB5FntQ8x0haz5MEBP/MyTDPOkfSpyKldaZegpYPn3XwJyQNzK7baH1UWSzDvLBW3 1DJIU+1VKnDLrByZhi7AEbb2ct98qTJ0wiJgQSCeoHNOFSYp43jxTjvHZOERYKUsRUvy qscw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743803313; x=1744408113; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=3cf9fSAlA9wA6PdkDcxtivqGkWoshv2pw9Tz3F/yjKA=; b=rlg2A/LDMdxv6EOw7rv/c1gR39U5ca7SSBwZ5UUPWympsZc6SkSTRRszGdW06U9QkG D32ta4RL3HowhJHbkv+mOBEPhp9kksUGP6kYzcR1Flv/DzRayHd/UpjXLtpMrQ4y07kj Gy3pwJxyqDwQGqX8uk4ZuxlwQOYxcjfjlXt77DucG4DuCGDMWss59ixyn7Xt+7ETS2uw xkQ+/VT9OdzoL1ec0LA42b+peSUyPcPAzOE+rD2dW5oB7kNB10EDQT6yjC+j8/Ee2aqw UQ3RPLYRPigOm5bZ8bQkB4mKrWyL1yf1+LTzJaqhZFVND/dX+GHJZ4SB/uMbt4jkAPzb /hbw== X-Forwarded-Encrypted: i=1; AJvYcCUC/rZOBVse4oKv8m52WfUoZPelU9WLqWkBZeCEoLcL5Hny+VCAqBnqtF6pBOvWLuiGc8WhjILFTcW2H5EP@vger.kernel.org X-Gm-Message-State: AOJu0YyIk0IAiOcZqVANR32jdTNmHGXFNyAH4Z/1qBVzcNoXnlbwmD9S OfEBu5Jhp+iR8ehNdUKhajmlQhT44FYRnEILOFK0xV8p0dQJDJ5QPbtRUW+injTxb8ZPBapBrrS iZg== X-Google-Smtp-Source: AGHT+IGnpdNYuWzpbuLbwm0d2ujiOyaHHb+qDWV50749XtRBO5rwC9BebHoC4cuO0ouBPGpi5P4M3hT5gBU= X-Received: from pjbsw8.prod.google.com ([2002:a17:90b:2c88:b0:2ff:4be0:c675]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:5150:b0:2fe:afa7:eaf8 with SMTP id 98e67ed59e1d1-306a4860a8amr6236253a91.13.1743803312668; Fri, 04 Apr 2025 14:48:32 -0700 (PDT) Date: Fri, 4 Apr 2025 14:48:31 -0700 In-Reply-To: <894eb67c-a9e4-4ae4-af32-51d8a71ddfc4@redhat.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250328153133.3504118-1-tabba@google.com> <894eb67c-a9e4-4ae4-af32-51d8a71ddfc4@redhat.com> Message-ID: Subject: Re: [PATCH v7 0/7] KVM: Restricted mapping of guest_memfd at the host and arm64 support From: Sean Christopherson To: David Hildenbrand Cc: "Liam R. Howlett" , Fuad Tabba , kvm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-mm@kvack.org, pbonzini@redhat.com, chenhuacai@kernel.org, mpe@ellerman.id.au, anup@brainfault.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, viro@zeniv.linux.org.uk, brauner@kernel.org, willy@infradead.org, akpm@linux-foundation.org, xiaoyao.li@intel.com, yilun.xu@intel.com, chao.p.peng@linux.intel.com, jarkko@kernel.org, amoorthy@google.com, dmatlack@google.com, isaku.yamahata@intel.com, mic@digikod.net, vbabka@suse.cz, vannapurve@google.com, ackerleytng@google.com, mail@maciej.szmigiero.name, michael.roth@amd.com, wei.w.wang@intel.com, liam.merwick@oracle.com, isaku.yamahata@gmail.com, kirill.shutemov@linux.intel.com, suzuki.poulose@arm.com, steven.price@arm.com, quic_eberman@quicinc.com, quic_mnalajal@quicinc.com, quic_tsoni@quicinc.com, quic_svaddagi@quicinc.com, quic_cvanscha@quicinc.com, quic_pderrin@quicinc.com, quic_pheragu@quicinc.com, catalin.marinas@arm.com, james.morse@arm.com, yuzenghui@huawei.com, oliver.upton@linux.dev, maz@kernel.org, will@kernel.org, qperret@google.com, keirf@google.com, roypat@amazon.co.uk, shuah@kernel.org, hch@infradead.org, jgg@nvidia.com, rientjes@google.com, jhubbard@nvidia.com, fvdl@google.com, hughd@google.com, jthoughton@google.com, peterx@redhat.com, pankaj.gupta@amd.com Content-Type: text/plain; charset="us-ascii" On Fri, Apr 04, 2025, David Hildenbrand wrote: > On 04.04.25 20:05, Liam R. Howlett wrote: > > But then again, maybe are are not going through linux-mm for upstream? > > [replying to some bits] > > As all patches and this subject is "KVM:" I would assume this goes through > the kvm tree once ready. Yeah, that's a safe assumption. > > It looks like a small team across companies are collaborating on this, > > and that's awesome. I think you need to change how you are doing things > > and let the rest of us in on the code earlier. > > I think the approach taken to share the different pieces early makes sense, > it just has to be clearer what the dependencies are and what is actually the > first thing that should go in so people can focus review on that. 100% agreed that sharing early makes sense, but I also 100% agree with Liam that having multiple series flying around with multiple dependencies makes them all unreviewable. I simply don't have the bandwidth to track down who's doing what and where. I don't see those two sides as conflicting. Someone "just" needs to take point on collecting, squashing, and posting the various inter-related works as a single cohesive series. As you said, things are getting there, but I recommend prioritizing that above the actual code, otherwise reviewers are going to continue ignoring the individual series. FWIW, if necessary, I would much prefer a single massive series over a bunch of smaller series all pointing at each other, at least for the initial review.