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=-16.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_PULL_REQUEST,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 6A728C43465 for ; Fri, 18 Sep 2020 17:17:31 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id DEA7721D42 for ; Fri, 18 Sep 2020 17:17:30 +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="sScf8brv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DEA7721D42 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 92A014B1FA; Fri, 18 Sep 2020 13:17:30 -0400 (EDT) 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 JJWvKEWnU2Sq; Fri, 18 Sep 2020 13:17:27 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 0171C4B202; Fri, 18 Sep 2020 13:17:27 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id BE62E4B1FE for ; Fri, 18 Sep 2020 13:17:25 -0400 (EDT) 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 TaAHbMcutgm2 for ; Fri, 18 Sep 2020 13:17:24 -0400 (EDT) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id C7B654B1B6 for ; Fri, 18 Sep 2020 13:17:24 -0400 (EDT) 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 A805421707; Fri, 18 Sep 2020 17:17:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600449443; bh=dT/SIIBfk6PdNJR5wifdnUhvj/zHp9ljO8pxvLb8ouI=; h=From:To:Cc:Subject:Date:From; b=sScf8brvcJJZ1OIxlPXSE1vyOhRAJ5bWUdN6HZa64ks2ni7AZwUMHOnkWSDlqXw4e xtXYTKivF9Gu6fe7f3g/dWxh721wKq0KoLRgqv36d8C5Tyt/J9fwZajTktVbkzsjGR POg34ttD0fKp8lZK5OLvELOcV3sNsBevkCMuyI44= 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:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kJK0f-00D4ZN-PC; Fri, 18 Sep 2020 18:17:21 +0100 From: Marc Zyngier To: Paolo Bonzini Subject: [GIT PULL] KVM/arm64 fixes for 5.9, take #2 Date: Fri, 18 Sep 2020 18:16:49 +0100 Message-Id: <20200918171651.1340445-1-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: pbonzini@redhat.com, will@kernel.org, kernel-team@android.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Cc: kvm@vger.kernel.org, Will Deacon , kernel-team@android.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org 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 Hi Paolo, Here's the latest set of fixes for 5.9. The first patch is pretty nasty, as a guest hitting this bug will have its vcpu stuck on a fault, without any hope of it being resolved. Embarrassing, and definitely a stable candidate. The second patch is only a cleanup after the first one. Please pull, M. The following changes since commit 7b75cd5128421c673153efb1236705696a1a9812: KVM: arm64: Update page shift if stage 2 block mapping not supported (2020-09-04 10:53:48 +0100) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.9-2 for you to fetch changes up to 620cf45f7a516bf5fe9e5dce675a652e935c8bde: KVM: arm64: Remove S1PTW check from kvm_vcpu_dabt_iswrite() (2020-09-18 18:01:48 +0100) ---------------------------------------------------------------- KVM/arm64 fixes for 5.9, take #2 - Fix handling of S1 Page Table Walk permission fault at S2 on instruction fetch - Cleanup kvm_vcpu_dabt_iswrite() ---------------------------------------------------------------- Marc Zyngier (2): KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch KVM: arm64: Remove S1PTW check from kvm_vcpu_dabt_iswrite() arch/arm64/include/asm/kvm_emulate.h | 14 +++++++++++--- arch/arm64/kvm/hyp/include/hyp/switch.h | 2 +- arch/arm64/kvm/mmu.c | 4 ++-- 3 files changed, 14 insertions(+), 6 deletions(-) _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm 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=-20.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_PULL_REQUEST,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 E826FC43464 for ; 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Fri, 18 Sep 2020 17:17:25 +0000 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 A805421707; Fri, 18 Sep 2020 17:17:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600449443; bh=dT/SIIBfk6PdNJR5wifdnUhvj/zHp9ljO8pxvLb8ouI=; h=From:To:Cc:Subject:Date:From; b=sScf8brvcJJZ1OIxlPXSE1vyOhRAJ5bWUdN6HZa64ks2ni7AZwUMHOnkWSDlqXw4e xtXYTKivF9Gu6fe7f3g/dWxh721wKq0KoLRgqv36d8C5Tyt/J9fwZajTktVbkzsjGR POg34ttD0fKp8lZK5OLvELOcV3sNsBevkCMuyI44= 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:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kJK0f-00D4ZN-PC; Fri, 18 Sep 2020 18:17:21 +0100 From: Marc Zyngier To: Paolo Bonzini Subject: [GIT PULL] KVM/arm64 fixes for 5.9, take #2 Date: Fri, 18 Sep 2020 18:16:49 +0100 Message-Id: <20200918171651.1340445-1-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: pbonzini@redhat.com, will@kernel.org, kernel-team@android.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200918_131725_016675_DCFB30CD X-CRM114-Status: GOOD ( 13.05 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kvm@vger.kernel.org, Suzuki K Poulose , Will Deacon , James Morse , Julien Thierry , kernel-team@android.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org 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 Hi Paolo, Here's the latest set of fixes for 5.9. The first patch is pretty nasty, as a guest hitting this bug will have its vcpu stuck on a fault, without any hope of it being resolved. Embarrassing, and definitely a stable candidate. The second patch is only a cleanup after the first one. Please pull, M. The following changes since commit 7b75cd5128421c673153efb1236705696a1a9812: KVM: arm64: Update page shift if stage 2 block mapping not supported (2020-09-04 10:53:48 +0100) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.9-2 for you to fetch changes up to 620cf45f7a516bf5fe9e5dce675a652e935c8bde: KVM: arm64: Remove S1PTW check from kvm_vcpu_dabt_iswrite() (2020-09-18 18:01:48 +0100) ---------------------------------------------------------------- KVM/arm64 fixes for 5.9, take #2 - Fix handling of S1 Page Table Walk permission fault at S2 on instruction fetch - Cleanup kvm_vcpu_dabt_iswrite() ---------------------------------------------------------------- Marc Zyngier (2): KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch KVM: arm64: Remove S1PTW check from kvm_vcpu_dabt_iswrite() arch/arm64/include/asm/kvm_emulate.h | 14 +++++++++++--- arch/arm64/kvm/hyp/include/hyp/switch.h | 2 +- arch/arm64/kvm/mmu.c | 4 ++-- 3 files changed, 14 insertions(+), 6 deletions(-) _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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=-20.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PULL_REQUEST,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 BEA8EC43464 for ; Fri, 18 Sep 2020 17:17:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 822C822208 for ; Fri, 18 Sep 2020 17:17:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600449445; bh=dT/SIIBfk6PdNJR5wifdnUhvj/zHp9ljO8pxvLb8ouI=; h=From:To:Cc:Subject:Date:List-ID:From; b=yxilRB3fXBzvKVTI4p/Kj6hGaZp0e0GrFtMC/J5jX5nqOquv+6go6Y/44FBZ7RiRl wBioYQiWsC1oUg+QsSqybAedFea0y26+SYu6EnMx4f9aTCRUyCRg44fXHi4KDYrB5T yUAcicmQUsEcRuDxKkDPwbQO212h1G5JEhzS+zFE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726252AbgIRRRY (ORCPT ); Fri, 18 Sep 2020 13:17:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:34796 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726139AbgIRRRY (ORCPT ); Fri, 18 Sep 2020 13:17:24 -0400 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 A805421707; Fri, 18 Sep 2020 17:17:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600449443; bh=dT/SIIBfk6PdNJR5wifdnUhvj/zHp9ljO8pxvLb8ouI=; h=From:To:Cc:Subject:Date:From; b=sScf8brvcJJZ1OIxlPXSE1vyOhRAJ5bWUdN6HZa64ks2ni7AZwUMHOnkWSDlqXw4e xtXYTKivF9Gu6fe7f3g/dWxh721wKq0KoLRgqv36d8C5Tyt/J9fwZajTktVbkzsjGR POg34ttD0fKp8lZK5OLvELOcV3sNsBevkCMuyI44= 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:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kJK0f-00D4ZN-PC; Fri, 18 Sep 2020 18:17:21 +0100 From: Marc Zyngier To: Paolo Bonzini Cc: Will Deacon , kernel-team@android.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, James Morse , Julien Thierry , Suzuki K Poulose Subject: [GIT PULL] KVM/arm64 fixes for 5.9, take #2 Date: Fri, 18 Sep 2020 18:16:49 +0100 Message-Id: <20200918171651.1340445-1-maz@kernel.org> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: pbonzini@redhat.com, will@kernel.org, kernel-team@android.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hi Paolo, Here's the latest set of fixes for 5.9. The first patch is pretty nasty, as a guest hitting this bug will have its vcpu stuck on a fault, without any hope of it being resolved. Embarrassing, and definitely a stable candidate. The second patch is only a cleanup after the first one. Please pull, M. The following changes since commit 7b75cd5128421c673153efb1236705696a1a9812: KVM: arm64: Update page shift if stage 2 block mapping not supported (2020-09-04 10:53:48 +0100) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.9-2 for you to fetch changes up to 620cf45f7a516bf5fe9e5dce675a652e935c8bde: KVM: arm64: Remove S1PTW check from kvm_vcpu_dabt_iswrite() (2020-09-18 18:01:48 +0100) ---------------------------------------------------------------- KVM/arm64 fixes for 5.9, take #2 - Fix handling of S1 Page Table Walk permission fault at S2 on instruction fetch - Cleanup kvm_vcpu_dabt_iswrite() ---------------------------------------------------------------- Marc Zyngier (2): KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch KVM: arm64: Remove S1PTW check from kvm_vcpu_dabt_iswrite() arch/arm64/include/asm/kvm_emulate.h | 14 +++++++++++--- arch/arm64/kvm/hyp/include/hyp/switch.h | 2 +- arch/arm64/kvm/mmu.c | 4 ++-- 3 files changed, 14 insertions(+), 6 deletions(-)