From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fout-b5-smtp.messagingengine.com (fout-b5-smtp.messagingengine.com [202.12.124.148]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 32CED1F03E8; Mon, 3 Mar 2025 09:54:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.12.124.148 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740995650; cv=none; b=bcg1yO0pJPRZYmvdk6jpjGEW8oxSZ+lrkyfXK3fnwsybJ9lvHtp+MYTuP2RZhBnGZWPTkfOXclUpW6fXujsc6FZ0pxhxkSG1/z6Nhy/cJNJO13MqS5eDrsrcBHP96Yu2oZkL1q1KEAVoQJsTJfaSOSxSI9BQQC9usSXUEWig8vQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740995650; c=relaxed/simple; bh=FPylrXqr8mexepEWXAgPHj2+DeTVmkWyz6LJZ22uLe4=; h=MIME-Version:Date:From:To:Cc:Message-Id:In-Reply-To:References: Subject:Content-Type; b=BQyQkhRyCdA5w/lZWpfeP9B3+mc259QVQQjVkFi7dOsNHypUmabzak3JBUbYiOU6zmOscDJZYqv5zOeYz3J0pBtk+LwMuCcr4dtIavGy5mmtuq9Dm90uIXm/VEFXV2L36vno5MFu28Z9X5chnGO2DfmLNg0ef2TxvSyplRhycAc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arndb.de; spf=pass smtp.mailfrom=arndb.de; dkim=pass (2048-bit key) header.d=arndb.de header.i=@arndb.de header.b=k5ubPbsx; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b=d7OD48v0; arc=none smtp.client-ip=202.12.124.148 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arndb.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arndb.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=arndb.de header.i=@arndb.de header.b="k5ubPbsx"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="d7OD48v0" Received: from phl-compute-09.internal (phl-compute-09.phl.internal [10.202.2.49]) by mailfout.stl.internal (Postfix) with ESMTP id CA0E1114015F; Mon, 3 Mar 2025 04:54:06 -0500 (EST) Received: from phl-imap-11 ([10.202.2.101]) by phl-compute-09.internal (MEProxy); Mon, 03 Mar 2025 04:54:07 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arndb.de; h=cc :cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to; s=fm3; t=1740995646; x=1741082046; bh=i0sKfI9tTTb1ZD2DRP7zdoUwuzXHxf4k0a/M8kjuyBs=; b= k5ubPbsx6tA/kYMwljhSBfc5Yvqwz/HTODm+iQfpLWPVHROMLQF1cbaGOGMIpYeB LWyMOo5S5eHBiFUNx68UlmhtjM8zgJuSkJOx10goK3BmDmeZuW/nB9GsEp9x931c KRRgXv9Dw9GmSH37cOA6NqUQztwJz0/nxjDCVSNnaY0eGEQRD8g67KxtuZnK1K8z 6HCjEzYmJPphusUyuGkWj5qVgv0beyq0pzGC+jcORyRI7WvB982ByxOkV5PUrTIe jvZrVTNCMfpQkyT0Cs7wllg+cutFmntGhVNlBPjHCmlByLsgldFquvbfe43FUR4C g4L3XErkvwYUOSv/Axz+Rg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t=1740995646; x= 1741082046; bh=i0sKfI9tTTb1ZD2DRP7zdoUwuzXHxf4k0a/M8kjuyBs=; b=d 7OD48v0w9JZvh49zjOhKBIFsiknSxygZ8q7KKlCQ/zfqv3Qy3OhIqkk7ba33of4e WKVvM0t0jce4ZsQw5VBv/c+RB+IgWdyTVOw15z0s/plzN42OjZT7/vAG6b9sD7+h KaNgm7AQwXSprf2q80kKi8s6VX5FXvY2BqZFyx9WDJTw9BVMaX4lnmuI9ndtno4F afnNq9E/nJYUwtqWooWy2A6ZTLR57zretvz8u1KO91hjGR9zGv4D3/9pkrnhNAuG N5f3Cb2rRNZRabjs3ZDzpQywLgc7ANkvAWlNP7EYsc0zNIbQTWBb/kcGQiWG8W4/ f1ZaTa2G294MU2whSLcXg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdelkeekvdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpggftfghnshhusghstghrihgsvgdp uffrtefokffrpgfnqfghnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivg hnthhsucdlqddutddtmdenucfjughrpefoggffhffvvefkjghfufgtgfesthejredtredt tdenucfhrhhomhepfdetrhhnugcuuegvrhhgmhgrnhhnfdcuoegrrhhnugesrghrnhgusg druggvqeenucggtffrrghtthgvrhhnpefhtdfhvddtfeehudekteeggffghfejgeegteef gffgvedugeduveelvdekhfdvieenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmh epmhgrihhlfhhrohhmpegrrhhnugesrghrnhgusgdruggvpdhnsggprhgtphhtthhopedu fedpmhhouggvpehsmhhtphhouhhtpdhrtghpthhtohepsghpsegrlhhivghnkedruggvpd hrtghpthhtohepgiekieeskhgvrhhnvghlrdhorhhgpdhrtghpthhtohepthhglhigsehl ihhnuhhtrhhonhhigidruggvpdhrtghpthhtohepuggrvhgvrdhhrghnshgvnheslhhinh hugidrihhnthgvlhdrtghomhdprhgtphhtthhopeigvghnqdguvghvvghlsehlihhsthhs rdigvghnphhrohhjvggtthdrohhrghdprhgtphhtthhopegsohhrihhsrdhoshhtrhhovh hskhihsehorhgrtghlvgdrtghomhdprhgtphhtthhopehlsghulhifrghhnhesrhgvughh rghtrdgtohhmpdhrtghpthhtoheplhhukhgrshdrsghulhifrghhnhesrhgvughhrghtrd gtohhmpdhrtghpthhtohepmhhinhhgohesrhgvughhrghtrdgtohhm X-ME-Proxy: Feedback-ID: i56a14606:Fastmail Received: by mailuser.phl.internal (Postfix, from userid 501) id D37942220072; Mon, 3 Mar 2025 04:54:04 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Mon, 03 Mar 2025 10:53:43 +0100 From: "Arnd Bergmann" To: "Lukas Bulwahn" , "Juergen Gross" , "Boris Ostrovsky" , "Thomas Gleixner" , "Ingo Molnar" , "Borislav Petkov" , "Dave Hansen" , x86@kernel.org, "H. Peter Anvin" , xen-devel@lists.xenproject.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org, "Lukas Bulwahn" Message-Id: In-Reply-To: <20250303093759.371445-1-lukas.bulwahn@redhat.com> References: <20250303093759.371445-1-lukas.bulwahn@redhat.com> Subject: Re: [PATCH] xen: Kconfig: Drop reference to obsolete configs MCORE2 and MK8 Content-Type: text/plain Content-Transfer-Encoding: 7bit On Mon, Mar 3, 2025, at 10:37, Lukas Bulwahn wrote: > From: Lukas Bulwahn > > Commit f388f60ca904 ("x86/cpu: Drop configuration options for early 64-bit > CPUs") removes the config symbols MCORE2 and MK8. > > With that, the references to those two config symbols in xen's x86 Kconfig > are obsolete. Drop them. > > Signed-off-by: Lukas Bulwahn Good catch! > diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig > index 77e788e928cd..98d8a50d2aed 100644 > --- a/arch/x86/xen/Kconfig > +++ b/arch/x86/xen/Kconfig > @@ -9,7 +9,7 @@ config XEN > select PARAVIRT_CLOCK > select X86_HV_CALLBACK_VECTOR > depends on X86_64 || (X86_32 && X86_PAE) > - depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MCORE2 || MATOM || MK8) > + depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MATOM) > depends on X86_LOCAL_APIC && X86_TSC > help > This is the Linux Xen port. Enabling this will allow the I suspect some or all all of the other three options should be dropped as well, given that 32-bit XEN_PV guests are already unsupported as of commit a13f2ef168cb2a033a284eb841bcc481ffbc90cf Author: Juergen Gross Date: Mon Jun 29 10:35:39 2020 +0200 x86/xen: remove 32-bit Xen PV guest support Xen is requiring 64-bit machines today and since Xen 4.14 it can be built without 32-bit PV guest support. There is no need to carry the burden of 32-bit PV guest support in the kernel any longer, as new guests can be either HVM or PVH, or they can use a 64 bit kernel. Remove the 32-bit Xen PV support from the kernel. and 32-bit Pentium4 and Atom CPUs don't run modern Xen hosts. Most likely this should be depends on X86_64 || (X86_32 && X86_PAE && X86_GENERIC) to say that running 32-bit XEN_PVHVM guests is still supported allowed on 64-bit hosts, but not on pure 32-bit machines. Arnd