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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 2A3A6CA0EED for ; Fri, 22 Aug 2025 05:34:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=D8XicYgOjiTvvGGkoe6RWU7q2u/gG9EiLOqy/Vb5XKI=; b=OxpxHvVwRGNP7eje3RyVeLwsXg GHChYrUesBY2XJkbhaf0Y/OfmMsWyFaptejpQDw+SwwB7k0SoCK8CloC/dnaSA2sVgquq7wpchLIx uVprhQ4Z1Cq5HyRK3zcPLHM8Jmb4LC402NUJiZcIGdZ6SxTMTmE2v/bCK2IIQRENNnCQ2TB31calx 3NR+BFwzpFjdSQo+5xMmKAXB8d2QZ0G3f4r+0/Z+OTvPV0JKn4qJouiUulEENJMjd4Xw4A/EJ6512 TUqSExKzzWmXKfGLkbeaDpy0qOG6Scm7UHWrd9EsrjBOjY8w/fB3j1CsvO4pGnORz7oBfUq4U1HoJ qKKjURDw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1upKPi-00000001arM-2sWK; Fri, 22 Aug 2025 05:34:11 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1upDww-00000000pGy-0Fxv for linux-arm-kernel@bombadil.infradead.org; Thu, 21 Aug 2025 22:40:02 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=D8XicYgOjiTvvGGkoe6RWU7q2u/gG9EiLOqy/Vb5XKI=; b=g6jD4jnNqT6HW54aCbqN8Aeu5X ICTLuNjpCuzTjFyyN8czG1TYHlGDTfF+wLcA/U1FeZgu0szQNIMWU81BVx94cqQlyaTwiF//hAsBs wt9zxdTm94fG8lBi3/FBqw3em4Bn0j5e6IlnSYCl9IIBdepKSnR9l6WLI5eUyvBGIV9n1aERFddp+ knq9oOMu+6R1vDi691UfNykqv89E1hXD8JexHhHHl2kQ2UFIPfejBg0EZAhREU8yqzOy6yyngHNdW KP81phJd9+hueauUaWM06oK/VyWVJr1RkfbKewWsuTs+nF83M3PPZYOHdPXM3spsi+mK8QzRw4qb3 SEo/chwQ==; Received: from out-188.mta1.migadu.com ([95.215.58.188]) by desiato.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1upDwr-00000000h08-2vXz for linux-arm-kernel@lists.infradead.org; Thu, 21 Aug 2025 22:40:00 +0000 Date: Thu, 21 Aug 2025 15:39:19 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1755815986; 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=D8XicYgOjiTvvGGkoe6RWU7q2u/gG9EiLOqy/Vb5XKI=; b=uf+yKkk0lkGd+LdPilwoJoT6fqhHqMP/fkewlLpiiG2lFzUdETqfLTLzi2b+NE41mz1azY 7Vuef5ZskjXR4AsBJPQaepxaFMN53Pg1JtVAdE28ie1oEpQbgm/e3lDIf6yP1arsITF6y6 831T4jz9a7i4vLtWE2OkvPeS6koNX2Q= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Oliver Upton To: Sean Christopherson Cc: Marc Zyngier , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, James Houghton Subject: Re: [RFC PATCH 00/16] KVM: arm64: Add "struct kvm_page_fault" Message-ID: References: <20250821210042.3451147-1-seanjc@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250821210042.3451147-1-seanjc@google.com> X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250821_233958_507127_5023C1A2 X-CRM114-Status: GOOD ( 10.67 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Aug 21, 2025 at 02:00:26PM -0700, Sean Christopherson wrote: > Add an arm64 version of "struct kvm_page_fault" to (hopefully) tidy up > the abort path, and to pave the way for things like KVM Userfault[*] that > want to consume kvm_page_fault in arch-neutral code. > > This is essentially one giant nop of code shuffling. > > RFC as this is only compile-tested. I didn't want to spend time testing > until I got feedback on whether or not y'all are amenable to the general idea. I appreciate the improved scoping around things like mmap lock, so this seems like a net-win in terms of readability. Just want to clarify the way this gets consumed from arch-neutral code and actually read in detail. Thanks, Oliver