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 X-Spam-Level: X-Spam-Status: No, score=-5.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E5862C4338F for ; Wed, 4 Aug 2021 16:27:38 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 9D1416056B for ; Wed, 4 Aug 2021 16:27:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 9D1416056B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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=MoIVsKR94BVJZND+I9Y0v77OdpbuF9Q6O7eJn2y37vE=; b=LYI+OgDl14NEXf 0QwMtRawRIAGTzmJrmRvtcJUAZ8U27oMYhLBwdth34xfKzkmEF45kcA/50Jy420BhIqBC4ygUO4oJ 7z/8g4hzIK6mv64vwJTcGr1M+Nf5inCsisu+uP3kq5NANIOCtiYs+UWZ8nraWcYXWtE/3J8DMdQ2P 8UVzNPzfFKsobngnnZLBc1Y4mWgd9sRMoZJyqZgxdEbp+1Y9PvUsUY5iRvByMyRmxVjULmdtxxxJ1 2nB85u5iBW80W8MDObrlmzcrFHNV8xor3pvPuoxcQGwaeTmsywe6bULWAS/20Zje/cpTBBxmYp/eA p42ooaaxOKl7gOLKIGqQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mBJiX-006l6h-6s; Wed, 04 Aug 2021 16:26:05 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mBJiT-006l5s-Pq for linux-arm-kernel@lists.infradead.org; Wed, 04 Aug 2021 16:26:03 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id BF6BC60E78; Wed, 4 Aug 2021 16:25:59 +0000 (UTC) Date: Wed, 4 Aug 2021 17:25:57 +0100 From: Catalin Marinas To: Michael Kelley Cc: will@kernel.org, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-efi@vger.kernel.org, wei.liu@kernel.org, kys@microsoft.com, sthemmin@microsoft.com, ardb@kernel.org Subject: Re: [PATCH v12 0/5] Enable Linux guests on Hyper-V on ARM64 Message-ID: <20210804162555.GD4857@arm.com> References: <1628092359-61351-1-git-send-email-mikelley@microsoft.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1628092359-61351-1-git-send-email-mikelley@microsoft.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210804_092601_897089_0CC197D8 X-CRM114-Status: GOOD ( 23.39 ) 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="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Aug 04, 2021 at 08:52:34AM -0700, Michael Kelley wrote: > This series enables Linux guests running on Hyper-V on ARM64 > hardware. New ARM64-specific code in arch/arm64/hyperv initializes > Hyper-V and its hypercall mechanism. Existing architecture > independent drivers for Hyper-V's VMbus and synthetic devices just > work when built for ARM64. Hyper-V code is built and included in > the image and modules only if CONFIG_HYPERV is enabled. [...] > Hyper-V on ARM64 runs with a 4 Kbyte page size, but allows guests > with 4K/16K/64K page size. Linux guests with this patch series > work with all three supported ARM64 page sizes. > > The Hyper-V vPCI driver at drivers/pci/host/pci-hyperv.c has > x86/x64-specific code and is not being built for ARM64. Enabling > Hyper-V vPCI devices on ARM64 is in progress via a separate set > of patches. > > This patch set is based on the linux-next20210720 code tree. Is it possible to rebase this on top of -rc3? Are there any dependencies or do you plan to upstream this via a different tree? It applies cleanly but it doesn't build for me: In file included from arch/arm64/include/asm/mshyperv.h:52, from arch/arm64/hyperv/hv_core.c:19: include/asm-generic/mshyperv.h: In function 'hv_do_rep_hypercall': include/asm-generic/mshyperv.h:86:3: error: implicit declaration of function 'touch_nmi_watchdog' [-Werror=implicit-function-declaration] 86 | touch_nmi_watchdog(); | ^~~~~~~~~~~~~~~~~~ A quick fix for the above was to include nmi.h in mshyperv.h. However, the below I can't fix since there's no trace of hv_common_init() on top of 5.14-rc3: arch/arm64/hyperv/mshyperv.c: In function 'hyperv_init': arch/arm64/hyperv/mshyperv.c:66:8: error: implicit declaration of function 'hv_common_init' [-Werror=implicit-function-declaration] 66 | ret = hv_common_init(); | ^~~~~~~~~~~~~~ arch/arm64/hyperv/mshyperv.c:71:5: error: 'hv_common_cpu_init' undeclared (first use in this function) 71 | hv_common_cpu_init, hv_common_cpu_die); | ^~~~~~~~~~~~~~~~~~ arch/arm64/hyperv/mshyperv.c:71:5: note: each undeclared identifier is reported only once for each function it appears in arch/arm64/hyperv/mshyperv.c:71:25: error: 'hv_common_cpu_die' undeclared (first use in this function) 71 | hv_common_cpu_init, hv_common_cpu_die); | ^~~~~~~~~~~~~~~~~ arch/arm64/hyperv/mshyperv.c:73:3: error: implicit declaration of function 'hv_common_free' [-Werror=implicit-function-declaration] 73 | hv_common_free(); | ^~~~~~~~~~~~~~ -- Catalin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel