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=-7.0 required=3.0 tests=BAYES_00,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,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 B8BC5C4338F for ; Fri, 20 Aug 2021 07:58:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8F0AE610A0 for ; Fri, 20 Aug 2021 07:58:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229847AbhHTH7F (ORCPT ); Fri, 20 Aug 2021 03:59:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:49586 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229780AbhHTH7F (ORCPT ); Fri, 20 Aug 2021 03:59:05 -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 9F80861042; Fri, 20 Aug 2021 07:58:27 +0000 (UTC) Received: from sofa.misterjones.org ([185.219.108.64] helo=hot-poop.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mGzQ1-0068ip-K3; Fri, 20 Aug 2021 08:58:25 +0100 From: Marc Zyngier To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Marc Zyngier Cc: James Morse , Andre Przywara , kernel-team@android.com, Suzuki K Poulose , Raghavendra Rao Ananta , Ricardo Koller , Eric Auger , stable@vger.kernel.org, Alexandru Elisei , Oliver Upton Subject: Re: [PATCH v2] KVM: arm64: vgic: Resample HW pending state on deactivation Date: Fri, 20 Aug 2021 08:58:22 +0100 Message-Id: <162944629227.1671663.6947098620852443792.b4-ty@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210819180305.1670525-1-maz@kernel.org> References: <20210819180305.1670525-1-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, maz@kernel.org, james.morse@arm.com, andre.przywara@arm.com, kernel-team@android.com, suzuki.poulose@arm.com, rananta@google.com, ricarkol@google.com, eric.auger@redhat.com, stable@vger.kernel.org, alexandru.elisei@arm.com, oupton@google.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: stable@vger.kernel.org On Thu, 19 Aug 2021 19:03:05 +0100, Marc Zyngier wrote: > When a mapped level interrupt (a timer, for example) is deactivated > by the guest, the corresponding host interrupt is equally deactivated. > However, the fate of the pending state still needs to be dealt > with in SW. > > This is specially true when the interrupt was in the active+pending > state in the virtual distributor at the point where the guest > was entered. On exit, the pending state is potentially stale > (the guest may have put the interrupt in a non-pending state). > > [...] Applied to next, thanks! [1/1] KVM: arm64: vgic: Resample HW pending state on deactivation commit: 3134cc8beb69d0db9de651081707c4651c011621 Cheers, M. -- Without deviation from the norm, progress is not possible. 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=-7.0 required=3.0 tests=BAYES_00,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 D6E4AC4338F for ; Fri, 20 Aug 2021 07:58:37 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 4AD8960FF2 for ; Fri, 20 Aug 2021 07:58:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4AD8960FF2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id CCDB24B0B9; Fri, 20 Aug 2021 03:58:36 -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 EZop2Yjb6vh1; Fri, 20 Aug 2021 03:58:33 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id F27964B105; Fri, 20 Aug 2021 03:58:32 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 4B5F64B0DD for ; Fri, 20 Aug 2021 03:58:31 -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 hxaE2CVg9fdh for ; Fri, 20 Aug 2021 03:58:29 -0400 (EDT) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 57E7A4B0B9 for ; Fri, 20 Aug 2021 03:58:29 -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 9F80861042; Fri, 20 Aug 2021 07:58:27 +0000 (UTC) Received: from sofa.misterjones.org ([185.219.108.64] helo=hot-poop.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mGzQ1-0068ip-K3; Fri, 20 Aug 2021 08:58:25 +0100 From: Marc Zyngier To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Marc Zyngier Subject: Re: [PATCH v2] KVM: arm64: vgic: Resample HW pending state on deactivation Date: Fri, 20 Aug 2021 08:58:22 +0100 Message-Id: <162944629227.1671663.6947098620852443792.b4-ty@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210819180305.1670525-1-maz@kernel.org> References: <20210819180305.1670525-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, maz@kernel.org, james.morse@arm.com, andre.przywara@arm.com, kernel-team@android.com, suzuki.poulose@arm.com, rananta@google.com, ricarkol@google.com, eric.auger@redhat.com, stable@vger.kernel.org, alexandru.elisei@arm.com, oupton@google.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Cc: Andre Przywara , stable@vger.kernel.org, Raghavendra Rao Ananta , 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 On Thu, 19 Aug 2021 19:03:05 +0100, Marc Zyngier wrote: > When a mapped level interrupt (a timer, for example) is deactivated > by the guest, the corresponding host interrupt is equally deactivated. > However, the fate of the pending state still needs to be dealt > with in SW. > > This is specially true when the interrupt was in the active+pending > state in the virtual distributor at the point where the guest > was entered. On exit, the pending state is potentially stale > (the guest may have put the interrupt in a non-pending state). > > [...] Applied to next, thanks! [1/1] KVM: arm64: vgic: Resample HW pending state on deactivation commit: 3134cc8beb69d0db9de651081707c4651c011621 Cheers, M. -- Without deviation from the norm, progress is not possible. _______________________________________________ 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=-7.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 54D18C4320A for ; Fri, 20 Aug 2021 08:00:30 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 27982610A0 for ; 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Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mGzQ8-00AIuC-Ge; Fri, 20 Aug 2021 07:58:32 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mGzQ4-00AItn-DL for linux-arm-kernel@lists.infradead.org; Fri, 20 Aug 2021 07:58:29 +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 9F80861042; Fri, 20 Aug 2021 07:58:27 +0000 (UTC) Received: from sofa.misterjones.org ([185.219.108.64] helo=hot-poop.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mGzQ1-0068ip-K3; Fri, 20 Aug 2021 08:58:25 +0100 From: Marc Zyngier To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Marc Zyngier Cc: James Morse , Andre Przywara , kernel-team@android.com, Suzuki K Poulose , Raghavendra Rao Ananta , Ricardo Koller , Eric Auger , stable@vger.kernel.org, Alexandru Elisei , Oliver Upton Subject: Re: [PATCH v2] KVM: arm64: vgic: Resample HW pending state on deactivation Date: Fri, 20 Aug 2021 08:58:22 +0100 Message-Id: <162944629227.1671663.6947098620852443792.b4-ty@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210819180305.1670525-1-maz@kernel.org> References: <20210819180305.1670525-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, maz@kernel.org, james.morse@arm.com, andre.przywara@arm.com, kernel-team@android.com, suzuki.poulose@arm.com, rananta@google.com, ricarkol@google.com, eric.auger@redhat.com, stable@vger.kernel.org, alexandru.elisei@arm.com, oupton@google.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-20210820_005828_510731_453B46EA X-CRM114-Status: GOOD ( 14.46 ) 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 Thu, 19 Aug 2021 19:03:05 +0100, Marc Zyngier wrote: > When a mapped level interrupt (a timer, for example) is deactivated > by the guest, the corresponding host interrupt is equally deactivated. > However, the fate of the pending state still needs to be dealt > with in SW. > > This is specially true when the interrupt was in the active+pending > state in the virtual distributor at the point where the guest > was entered. On exit, the pending state is potentially stale > (the guest may have put the interrupt in a non-pending state). > > [...] Applied to next, thanks! [1/1] KVM: arm64: vgic: Resample HW pending state on deactivation commit: 3134cc8beb69d0db9de651081707c4651c011621 Cheers, M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel