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 smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 7F278C433EF for ; Fri, 10 Jun 2022 09:47:48 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id EC7E0842E3; Fri, 10 Jun 2022 09:47:47 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XiRxqOsPb-NF; Fri, 10 Jun 2022 09:47:47 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp1.osuosl.org (Postfix) with ESMTPS id B53A2842D5; Fri, 10 Jun 2022 09:47:46 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 915B6C0039; Fri, 10 Jun 2022 09:47:46 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [IPv6:2605:bc80:3010::137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 2C3F3C002D for ; Fri, 10 Jun 2022 09:47:45 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 1539F419B1 for ; Fri, 10 Jun 2022 09:47:45 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp4.osuosl.org (amavisd-new); dkim=pass (1024-bit key) header.d=redhat.com Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VXGb5qVtSuCz for ; Fri, 10 Jun 2022 09:47:44 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by smtp4.osuosl.org (Postfix) with ESMTPS id 1BCB541994 for ; Fri, 10 Jun 2022 09:47:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1654854462; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=Iej305ZrS3cI+u8eOot8avD0go/WsD4iT9qMHnSK6K8=; b=dX/MWqZKrD/f+pAA4XrZ45DAUOB469+x9OJkgG140EU8YsUzAjDdYC03InuLwHdSBwmNNW A7Ge3U6ySIhNSOb6qepEJWwr/kqXMrEhEc++uHbT4+FWHoFPPHLuDt6+ied0p0tZ9fK9b3 qx970TCtde4Xr8m0rangs+XSH4Im/YY= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-424-CD6ZHAqePD205X0fXSOnrQ-1; Fri, 10 Jun 2022 05:47:41 -0400 X-MC-Unique: CD6ZHAqePD205X0fXSOnrQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id C9E8D801E67; Fri, 10 Jun 2022 09:47:40 +0000 (UTC) Received: from t480s.redhat.com (unknown [10.39.193.213]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2B05818EA7; Fri, 10 Jun 2022 09:47:38 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Subject: [PATCH v1] drivers/virtio: Clarify CONFIG_VIRTIO_MEM for unsupported architectures Date: Fri, 10 Jun 2022 11:47:37 +0200 Message-Id: <20220610094737.65254-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 Cc: "Michael S. Tsirkin" , virtualization@lists.linux-foundation.org X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" Let's make it clearer that simply unlocking CONFIG_VIRTIO_MEM on an architecture is most probably not sufficient to have it working as expected. Cc: "Michael S. Tsirkin" Cc: Jason Wang Cc: Gavin Shan Signed-off-by: David Hildenbrand --- drivers/virtio/Kconfig | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig index b5adf6abd241..f86b6a988b63 100644 --- a/drivers/virtio/Kconfig +++ b/drivers/virtio/Kconfig @@ -115,9 +115,11 @@ config VIRTIO_MEM This driver provides access to virtio-mem paravirtualized memory devices, allowing to hotplug and hotunplug memory. - This driver was only tested under x86-64 and arm64, but should - theoretically work on all architectures that support memory hotplug - and hotremove. + This driver currently only supports x86-64 and arm64. Although it + should compile on other architectures that implement memory + hot(un)plug, architecture-specific and/or common + code changes may be required for virtio-mem, kdump and kexec to work as + expected. If unsure, say M. -- 2.35.3 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization