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 EA7D5CA0EEC for ; Fri, 30 Aug 2024 08:05:13 +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:Content-Type:MIME-Version: References:In-Reply-To:Subject:Cc:To:From:Message-ID: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=3Yzt4XiHB0walWfI3KW5WPqqibYSJH4S78r81brTuuo=; b=ZPzDxMe4sQ55CME+YjZ3U2SDy3 fGZbsEgV3+Gi8moSP2/vhDYrHFKMftUmrDzTmfv6w6+x92dKNEfvs2xiLjCaQFZtJJ2f8uBjH0PuA +HLeZM7D6VYC50WibcYpN/7VgknUF7c3TThS8StafhPWgTcvlzv3QFxxq51r9R0q9GxOLoKB/vVzb Ww1PgboIpY4dXtxgedXxrKHww69YPMncw8mjSwibGoZu+gBEFoX0XpnEXQepmScoPSbN08ZBm9Dol Q/b3ppuTI+LrxDMboHQLnVwxypINhm5H7wRnbhCJcoPL7len2+VLPqzXa+4XHElSDGoBOvIcsyYH2 Y/pneDIQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sjwcs-00000005Eoe-2X1N; Fri, 30 Aug 2024 08:04:58 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sjwZQ-00000005E5Z-134h for linux-arm-kernel@lists.infradead.org; Fri, 30 Aug 2024 08:01:25 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id C967BA44154; Fri, 30 Aug 2024 08:01:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 61A2DC4CEC2; Fri, 30 Aug 2024 08:01:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725004882; bh=VshpswIhHW2c4cRGikfOOFamWjs+IRqvkBaQTQe4Rmk=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=DYMQKP0fbJqGrFkeyABDC3Xc1uAQUJL9WtZMQbpIQKfd3PjpKK5MwFFNDLMkWInXt 2VtN33L1xcTYIfHOwnNhHsnpOUhnAr1aKVo1dJ3SUWGwg4JLXcMubWrjgMYcEzS6lA V5Yk8YclN7qN4SmHipKJONL/bEwHoiXLWBln+Mp8bTflBrerAGu5FcdRuo50zJ0Iiw 2yrR30XICxdZzY612s3+l+nkq211lGa4WJJIg654Vn/KZDLp1KwupaEVk/FHPrAsnP ZjALZAa0jERSuG6ZpXjVo9/AeFgy4X3Fz1SjNY4gK0aVq61secb+UayB1h2PzRzo48 c38nvUpnlAwOQ== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1sjwZL-0089BF-S9; Fri, 30 Aug 2024 09:01:19 +0100 Date: Fri, 30 Aug 2024 09:01:18 +0100 Message-ID: <86cylqwib5.wl-maz@kernel.org> From: Marc Zyngier To: Will Deacon 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_* In-Reply-To: <20240823134811.GG32156@willie-the-truck> References: <20240822151113.1479789-1-joey.gouly@arm.com> <20240822151113.1479789-9-joey.gouly@arm.com> <20240823134811.GG32156@willie-the-truck> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/29.4 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: will@kernel.org, joey.gouly@arm.com, 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 X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240830_010124_509194_F275353A X-CRM114-Status: GOOD ( 23.59 ) 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 Hi Will, 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. Please let me know what you prefer. Thanks, M. -- Without deviation from the norm, progress is not possible.