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 2C765C54798 for ; Tue, 27 Feb 2024 08:49:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=xEBpdU+8A4BoZYvxL22ElIWSkzxCCeVeZUTYeiQyy4M=; b=X2F1ilhJizKHsZ dWNQt51IxNWo1GWRX4KIGraW/2zqHMQP4pMmm1aB8w6lYbSzNiMQeNUBuP1dEovjIm4/d2etHmEWg WjBUcGqLwsxkzuBj2ceY6q+A6XUM3Knms4Nqaq3HIJjHzvOfHUJqN0cL4TAcmRVC1w3td8l7WsL0Y vPDHT8u4j0JQ+/8xR1zpQzy/+ygYkjs9aF2qXroHsWgGtT5MQi5/IhNgq0MGJ7whImKfO6ymFNzjp BtjqeUFvz6rCqmiQsP9OEVNt1PKjlp+5AJyF0sYImtoAtEVEEmMoUM/I8RKWMn+rjp9UKgZh/wgiM tZZQZvYw1Zx9Yhrdjmmw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1ret9a-00000004O5h-3086; Tue, 27 Feb 2024 08:49:34 +0000 Received: from out-187.mta0.migadu.com ([2001:41d0:1004:224b::bb]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1ret9X-00000004O4c-0UDC for linux-arm-kernel@lists.infradead.org; Tue, 27 Feb 2024 08:49:33 +0000 Date: Tue, 27 Feb 2024 08:49:14 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1709023766; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=B88acvmk3x+zIRZR32kMKESL53/0EUlRhoWm47p8/0I=; b=co+35iFFA/D2wKUXn7nYHD6NVdDySS+UuNx5G2ngPxXIyl0msY/tX6gEHpymCPeo+6sFQo WesPXGCplfJLDUVn6T0s2Fbj7Vi/qFridYIFJGgAwfFFvVX5IA3TIXXjnTHJB9qOTOkwB9 OZ6IXWi9a57oPkJFIWNi73/h0BPEt2Y= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Oliver Upton To: Ankit Agrawal Cc: "wangjinchao@xfusion.com" , "shahuang@redhat.com" , "catalin.marinas@arm.com" , "ryan.roberts@arm.com" , "stefanha@redhat.com" , "yi.l.liu@intel.com" , "david@redhat.com" , Jason Gunthorpe , "lpieralisi@kernel.org" , "gshan@redhat.com" , "brauner@kernel.org" , "rananta@google.com" , "alex.williamson@redhat.com" , "suzuki.poulose@arm.com" , "kevin.tian@intel.com" , "surenb@google.com" , "ricarkol@google.com" , "linus.walleij@linaro.org" , "james.morse@arm.com" , "ardb@kernel.org" , "will@kernel.org" , "akpm@linux-foundation.org" , "maz@kernel.org" , "bhe@redhat.com" , "reinette.chatre@intel.com" , "yuzenghui@huawei.com" , "andreyknvl@gmail.com" , "linux-mm@kvack.org" , "mark.rutland@arm.com" , Dan Williams , Andy Currid , Alistair Popple , Matt Ochs , "linux-kernel@vger.kernel.org" , Aniket Agashe , Neo Jia , "kvm@vger.kernel.org" , John Hubbard , "kvmarm@lists.linux.dev" , Zhi Wang , Kirti Wankhede , Vikram Sethi , "linux-arm-kernel@lists.infradead.org" , "Tarun Gupta (SW-GPU)" Subject: Re: [PATCH v9 0/4] KVM: arm64: Allow the VM to select DEVICE_* and NORMAL_NC for IO memory Message-ID: References: <20240224150546.368-1-ankita@nvidia.com> <170899100569.1405597.5047894183843333522.b4-ty@linux.dev> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240227_004931_709764_8BF687A7 X-CRM114-Status: GOOD ( 15.92 ) 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: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Feb 27, 2024 at 08:45:38AM +0000, Ankit Agrawal wrote: > >> > >> Currently, KVM for ARM64 maps at stage 2 memory that is considered dev= ice > >> with DEVICE_nGnRE memory attributes; this setting overrides (per > >> ARM architecture [1]) any device MMIO mapping present at stage 1, > >> resulting in a set-up whereby a guest operating system cannot > >> determine device MMIO mapping memory attributes on its own but > >> it is always overridden by the KVM stage 2 default. > >> > >> [...] > > > > High time to get this cooking in -next. Looks like there aren't any > > conflicts w/ VFIO, but if that changes I've pushed a topic branch to: > > > >=A0 https://git.kernel.org/pub/scm/linux/kernel/git/oupton/linux.git/log= /?h=3Dkvm-arm64/vfio-normal-nc > > > > Applied to kvmarm/next, thanks! > = > Thanks Oliver for your efforts. Pardon my naivety, but what would the > sequence of steps that this series go through next before landing in an > rc branch? Also, what is the earliest branch this is supposed to land > assuming all goes well? We should see this showing up in linux-next imminently. Assuming there are no issues there, your changes will be sent out as part of the kvmarm pull request for 6.9. At least in kvmarm, /next is used for patches that'll land in the next merge window and /fixes is for bugfixes that need to go in the current release cycle. -- = Thanks, Oliver _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel