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=-6.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 1F4FEC388F9 for ; Tue, 3 Nov 2020 17:15:00 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 75DAC216C4 for ; Tue, 3 Nov 2020 17:14:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="c6PdVPRR" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 75DAC216C4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id BFEEC4B2BB; Tue, 3 Nov 2020 12:14:58 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@kernel.org Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id S57yTSkzh9Om; Tue, 3 Nov 2020 12:14:57 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id BA1B74B31A; Tue, 3 Nov 2020 12:14:57 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 92AFE4B414 for ; Tue, 3 Nov 2020 12:14:56 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ytTH8Pt+Is2L for ; Tue, 3 Nov 2020 12:14:53 -0500 (EST) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id BA6EB4B2B9 for ; Tue, 3 Nov 2020 12:14:53 -0500 (EST) Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4FA8C20E65; Tue, 3 Nov 2020 17:14:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604423692; bh=6+qWLb2RuYMP6Lh4W5V8A6bsv6YMBX9ny8ju+VAAdW0=; h=From:To:Cc:Subject:Date:From; b=c6PdVPRRjCGBWTLYuOFAf1qeWgIZ2ltAw/wGAgbd4g0BbkiOImKrkusWHZw8fFk7a 4LJ9vA+G/dU29gHYkLy0oL/KLttVC9huKkE5mBtOFfpajFY92HGKCnvbRZm2kipzjq vFzRxMgMlwEQJA3PWPB22JZBPxaiACJFr1gFv7AA= Received: from 78.163-31-62.static.virginmediabusiness.co.uk ([62.31.163.78] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94) (envelope-from ) id 1kZztS-007CyW-4V; Tue, 03 Nov 2020 17:14:50 +0000 From: Marc Zyngier To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org Subject: [PATCH 0/3] KVM: arm64: Another set of CSV2-related fixes Date: Tue, 3 Nov 2020 17:14:42 +0000 Message-Id: <20201103171445.271195-1-maz@kernel.org> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, liangpeng10@huawei.com, will@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, kernel-team@android.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Cc: Will Deacon , kernel-team@android.com X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu This small series addresses a couple of Spectre-v2 related issues: - Fix a live migration regression introduced with the setting of CSV2 on systems that are not affected by Spectre-v2, but that don't directly expose it in ID_AA64PFR0_EL1 - Inject an UNDEF exception if the guest tries to access any of SCXTNUM_ELx, as we don't advertise it to guests. Patches on top of 5.10-rc2. Marc Zyngier (3): KVM: arm64: Allow setting of ID_AA64PFR0_EL1.CSV2 from userspace KVM: arm64: Rename access_amu() to undef_access() KVM: arm64: Handle SCXTNUM_ELx traps arch/arm64/include/asm/kvm_host.h | 2 + arch/arm64/include/asm/sysreg.h | 4 ++ arch/arm64/kvm/arm.c | 16 +++++++ arch/arm64/kvm/sys_regs.c | 70 +++++++++++++++++++++++-------- 4 files changed, 74 insertions(+), 18 deletions(-) -- 2.28.0 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm