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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5A38CCA0EF7 for ; Fri, 30 Aug 2024 09:05:35 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id AF1636B00DC; Fri, 30 Aug 2024 05:05:34 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id AA0C76B00DD; Fri, 30 Aug 2024 05:05:34 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 969246B00DE; Fri, 30 Aug 2024 05:05:34 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 779386B00DC for ; Fri, 30 Aug 2024 05:05:34 -0400 (EDT) Received: from smtpin15.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 0EA16140D03 for ; Fri, 30 Aug 2024 09:05:34 +0000 (UTC) X-FDA: 82508328588.15.19A43A2 Received: from nyc.source.kernel.org (nyc.source.kernel.org [147.75.193.91]) by imf25.hostedemail.com (Postfix) with ESMTP id 49348A0008 for ; Fri, 30 Aug 2024 09:05:32 +0000 (UTC) Authentication-Results: imf25.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=HChw5GwJ; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf25.hostedemail.com: domain of will@kernel.org designates 147.75.193.91 as permitted sender) smtp.mailfrom=will@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1725008666; a=rsa-sha256; cv=none; b=sLy3U6XJz3DhlteKELoVcr1UmnIiquRhwHxg8lF2cljZgF3OAqCNQQlcy4UfPh9SrML1Uq DcekPciYcEyxAwRhmzJOLURtI3jikKOTs9UECEQ33C8LgtkUN6197GczAk6k63Ydc3TH1e oN8/ksFYveoSmiRuJips9gw0WB34IC0= ARC-Authentication-Results: i=1; imf25.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=HChw5GwJ; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf25.hostedemail.com: domain of will@kernel.org designates 147.75.193.91 as permitted sender) smtp.mailfrom=will@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1725008666; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=qM1M6y52oOLcvTXXkYNi84CBuGT3KCKd7BKG8VvMHZE=; b=OiKErydMn/oGTubMylY5qIwuHI9eRPWAhGuJt8WvRslTCk19zAK+iSN/ZiNht6hLx6St2E 0ex5mr/e2jB7VgxR0Aq14mSMU2lu7cHwcTkcJR/tUO8Z0UqBBYQOnoKWK3H8Vra7l+Ekun iKNoxTy4/tg9VM3w2/Mr9t03hWEmEbo= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 49FDCA4423E; Fri, 30 Aug 2024 09:05:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2380EC4CECB; Fri, 30 Aug 2024 09:05:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725008730; bh=jTLffhohIxJnzY99/Hvodz5uFraK2Vu7f7rbBUb7RL0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=HChw5GwJcaBYA0YWU51Sq8KSuPRh1Qzu2RJlo+RjnG0gnt6HvvXNGLSnEMo6bhu/H 5KrS2WWo3ASz7iPKCdmLMbHD8svscNsJSIlxe7BKaZ4/wxEo9tBOBvXzSkgz0AJYpn iHC4GnKqRIowewoJ+Jl/A96N/ImKtYszoY7j8nx3Xg6o9Kmj8UKSQgscBCyDkI3LH2 P5lw6WAkGEBegKDF3l0Omf7fHJhs7x7k4zNj2od0bzeSzhVPYASLGC6AXSGeMbjI1Q CBpXqgx/gO299Yfg1XbGUPFWO3WG6aNjElKht3dNb51IQpPfhsZ1FGLfLJCkinw1uO g59V4OZV0AImQ== Date: Fri, 30 Aug 2024 10:05:22 +0100 From: Will Deacon To: Marc Zyngier Cc: Joey Gouly , linux-arm-kernel@lists.infradead.org, nd@arm.com, akpm@linux-foundation.org, aneesh.kumar@kernel.org, aneesh.kumar@linux.ibm.com, anshuman.khandual@arm.com, bp@alien8.de, broonie@kernel.org, catalin.marinas@arm.com, christophe.leroy@csgroup.eu, dave.hansen@linux.intel.com, hpa@zytor.com, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, mingo@redhat.com, mpe@ellerman.id.au, naveen.n.rao@linux.ibm.com, npiggin@gmail.com, oliver.upton@linux.dev, shuah@kernel.org, skhan@linuxfoundation.org, szabolcs.nagy@arm.com, tglx@linutronix.de, x86@kernel.org, kvmarm@lists.linux.dev, linux-kselftest@vger.kernel.org Subject: Re: [PATCH v5 08/30] KVM: arm64: make kvm_at() take an OP_AT_* Message-ID: <20240830090522.GA7678@willie-the-truck> References: <20240822151113.1479789-1-joey.gouly@arm.com> <20240822151113.1479789-9-joey.gouly@arm.com> <20240823134811.GG32156@willie-the-truck> <86cylqwib5.wl-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <86cylqwib5.wl-maz@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) X-Rspamd-Queue-Id: 49348A0008 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: czoam6r7ciuhfm9cttyuwpptu3pdcaa3 X-HE-Tag: 1725008732-15263 X-HE-Meta: U2FsdGVkX1+qCmu8FnUQYc+YwbdfUTu80OWVZEaNWm2a+w5s3Dq0tJV3G+KATKOuDKOe0ggrsjvkHGSSzbpGAdT8yiuZeIQLPrDUW/DIQ8DRkf1FyRBr07FsIfFPeVeDLf55fXxpiVcb8DTwvcqNAVswaDI9PjTKwj14Q/s9dTE9nKgR6a5egXv1zmAp0BTkU4FzyEm2LnVQXwJaeJfcGewgKt7nxIjIXUGTQIGvhQ9rCGd6Vaw8xkYtekQdrtE+iM5287Jj6A1ygoYlJs84l0k0ba2E78v1hjbq515wXU24ls64ehnGMqSEgDq44Q+UqNgYtg+5uaa6rF0ZlrLm/we1obVOTE1YgbHetEAHdlkZi0n0X7FylE41a+t5NrBRZQ8YyMRE4MqZAlkvWcx88nA7d9hF1j6DEO5HBwtBS137h2W8558PIOzCuEmYzXzCptQiRgwfO7UbMVDuNQCwJYjtDjFJwo6eBgM2eacOaJ06FUU0lv6jZIrl2BwGqTovcCcFfgGV5PzW4g8KGJbubbtHGwoXp1f2i/oCqqirPtsX8KWcJ66051x091NLxMBULab5tuwX7n648Gyk16YORoCHiYprDhdzRWkTSbaXv7Ysm3a13qI7CbJ5Ztro7/MMV/3mSsEen6TpCl5O0rnhU+3s0tX8zVQpWQmqbDlFe7c34Wcl1qRUnwLNzwcDhpgAsBvggl9PYDBQPjYmXULvh56ut3Iej7dQli0K8GzvE/SfY9z2t2jnoujFFv42hkwzbzkSPTBS4kBEaxx2AoZYVNpcUikmC11jU4nqwXu/npr42WFKJ4kfoCNaNCWkzh3czMwqdKLzs95iR1nnqP0RK7cPhs26n5isJ/J9HSmXMHwgzqETvum2YggC63WSG7KsPYhSQEmDdoTuVJZ7zF2gmk9P6smAqgON72Byay3OFXEgOQXdovt/zK2kh3HWn92O3CQ72I7R7MK32vZ32RY PbkHsTrG mGyu/3xYmFhHwGMnAoglkOk8m55fnXD2Eohh1wlNFFLZtPDY2ejJJnTFCMU+Av2R6pcopXXx2MoWrivOCD451VtOjjHRQLOGJYJNWbjiTAhGmzJ9uU2VK0rx0EM5oEx/x77iiYvv9HUny/osHnOQESqRmvqNO/UhoMAEyMPX6TKvEc2nKQkAds5FZzZuzbdoVw3KNaXxjeIyfw553pLL2Sx9+xt60OHgDGDLL5BzX9kXnG8yLGlcXtHUcxk+DGcppy2bDeH+WAycSZv7kkL8ZiKn3dPkrFjPUbDdB2ffeOL9zz9jwt9Ho7vJ4/nb6AmJ0an0adqO8b/38KgIEdGR7mfBdaV/rWZKBBggG X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hey Marc, On Fri, Aug 30, 2024 at 09:01:18AM +0100, Marc Zyngier wrote: > On Fri, 23 Aug 2024 14:48:11 +0100, > Will Deacon wrote: > > > > On Thu, Aug 22, 2024 at 04:10:51PM +0100, Joey Gouly wrote: > > > To allow using newer instructions that current assemblers don't know about, > > > replace the `at` instruction with the underlying SYS instruction. > > > > > > Signed-off-by: Joey Gouly > > > Cc: Marc Zyngier > > > Cc: Oliver Upton > > > Cc: Catalin Marinas > > > Cc: Will Deacon > > > Reviewed-by: Marc Zyngier > > > --- > > > arch/arm64/include/asm/kvm_asm.h | 3 ++- > > > arch/arm64/kvm/hyp/include/hyp/fault.h | 2 +- > > > 2 files changed, 3 insertions(+), 2 deletions(-) > > > > Marc -- what would you like to do with this patch? I think the POE series > > is really close now, so ideally I'd queue the lot on a branch in arm64 > > and you could pull the first ~10 patches into kvmarm if you need 'em. > > > > Would what work for you, or did you have something else in mind (since > > this one is also included in your series adding nv support for AT). > > Is there any progress on this front? I am quite eager to queue the AT > series, but the dependency on this patch is preventing me to do so. > > I can see there are outstanding questions on the POE series, so I was > wondering if we should consider reversing the dependency: I can create > a stable branch with this single patch, which you can pull as a prefix > of the POE series. That sounds like a good idea. The uaccess discussion seems to have stalled and I don't really want to merge the series without concluding that. So please go ahead with this single patch and I'll pull it in if things start moving again. Will