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 DE6C3C47088 for ; Sat, 3 Dec 2022 13:34:43 +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=cIRQtukgFKVW9GGS/ItYaorf5t624gMjc2gQUCwXNsA=; b=27euyj2sHoxHH0 rLkCj8x/tBkoTvKwm6tA21q3gPz/FAvEdbYO/9y6BaQxaDDVeyDy2G5lDayzW27GNM6JIkKQNOqg+ Q3hxVVAbBXqbxvjPBUExwjJ8UqXEhqSfPVLE8U4NnF7cu3pmKqqdEVH4BXcaZfvRWeOek5NBgTdsw zi+7mluGycWifPv0GbDyqc9czC0DgQ5CuLIG6BfwIOdlBbC7KtlGhC5ku000/fo68G/zKQqXsvjp0 7ECU6dp7u8toRyPimeXqTvePO0NMDGFTf0fMVY7zghiKRhzzjqqXw8SsbeiajPHyHEEB6na2Af7G6 Yr5IQXz9A7tPEMsbPWQw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p1SdQ-003Zjn-TC; Sat, 03 Dec 2022 13:32:53 +0000 Received: from out5-smtp.messagingengine.com ([66.111.4.29]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p1SdM-003ZiH-6s for linux-arm-kernel@lists.infradead.org; Sat, 03 Dec 2022 13:32:50 +0000 Received: from compute2.internal (compute2.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id 305C25C00CF; Sat, 3 Dec 2022 08:32:42 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute2.internal (MEProxy); Sat, 03 Dec 2022 08:32:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kroah.com; h=cc :cc:content-type:date:date:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to; s=fm1; t=1670074362; x=1670160762; bh=W90uSH1VWI xwxESbT4oTqBt0gbz7nt4AZIDPo7xpVgY=; b=UIy2YTVKmvTb05QB1mJFPWlHxO gbn9cOZlni5o+7bwh1Qyrub7Ub0IjOXV0MeDsLpPlnRN56r/fagDcNByqAECMfSo NYbM4uZ6xz8M1dYaOMnEUoDqsNx9PMJuHROXVQAet/ItCv0C87LHINq79Dl1jwRg secS01ytEKogRKDACpPztWSTw02C7uRCaZpXfrDhL11XT2tULirJ/PWkCnHQ20oi b/3QVBwSkeTQYRZo25Y6ZrYF6D8i1FeWDXZC82zla+jR48cxh5788dr0G4JKEDSO 0QRo5h9ppQVKcZ8u/rCTyKpMs7GeLF1eibIjIAahDxroAyJh3qBhFTCLQOrQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:date:date:feedback-id :feedback-id:from:from:in-reply-to:in-reply-to:message-id :mime-version:references:reply-to:sender:subject:subject:to:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; t=1670074362; x=1670160762; bh=W90uSH1VWIxwxESbT4oTqBt0gbz7 nt4AZIDPo7xpVgY=; b=RhDd5hRMk7i5fw6MgfjTnFIaM4oB0jzkj324WNRzkKt9 DRGH9iWxl6zIG5Tn9QnCMrupuhzM2ckoKJv0ZDJ+2Xkp7U3IPt6/PMrdDouQSZ54 QTj9/1+iG9NnzDZatn61EJwCbzzB4LoHoRd1yRtMVVSyy+enc2etALL/DkNB8CTX RYtA6OHEbXzRC2QWolNnQ73tNKZw5IBy0n+fDYfgcMBdKZsTVIkiSbJ+bXUXz/h1 HhwL08qOzewkWFwkN/6hycKPD6tOZ2IFPpnpUMImqzisjKCj0iQ3PcvQPyG/+eeK pAO6GtRg+JmQcaxggNyy3V6AHpT+0XP0Hzda8s788g== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedruddtgdehgecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpeffhffvvefukfhfgggtuggjsehttdertddttddvnecuhfhrohhmpefirhgvghcu mffjuceoghhrvghgsehkrhhorghhrdgtohhmqeenucggtffrrghtthgvrhhnpeehgedvve dvleejuefgtdduudfhkeeltdeihfevjeekjeeuhfdtueefhffgheekteenucevlhhushht vghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehgrhgvgheskhhrohgrhh drtghomh X-ME-Proxy: Feedback-ID: i787e41f1:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sat, 3 Dec 2022 08:32:41 -0500 (EST) Date: Sat, 3 Dec 2022 14:32:39 +0100 From: Greg KH To: James Morse Cc: stable@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Catalin Marinas Subject: Re: [stable:PATCH v5.4.225 0/2] arm64: errata: Spectre-BHB fixes Message-ID: References: <20221130182819.739068-1-james.morse@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20221130182819.739068-1-james.morse@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221203_053248_886722_C389AA2A X-CRM114-Status: GOOD ( 11.24 ) 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, Nov 30, 2022 at 06:28:17PM +0000, James Morse wrote: > Hello! > > The first patch fixes an issue reported by Sami, where linux panic()s > when bringing secondary CPUs online. The problem was the Spectre > workarounds trying to allocate a new slot for mitigating KVM when > those pages are no longer writeable. > > While debugging that issue, I spotted the Spectre-BHB KVM mitigation was > over-riding the Spectre-v2 KVM Mitigation. It's supposed to happen the > other way round. > > The backports aren't the same as mainline because the spectre mitigation code > was totally rewritten for v5.10, and prior to that the KVM infrastructure > is very different. All now queued up, thanks. greg k-h _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel