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=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT 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 4A25EC43387 for ; Fri, 18 Jan 2019 16:25:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2589220850 for ; Fri, 18 Jan 2019 16:25:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729057AbfARQZ4 (ORCPT ); Fri, 18 Jan 2019 11:25:56 -0500 Received: from foss.arm.com ([217.140.101.70]:33242 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728670AbfARQZw (ORCPT ); Fri, 18 Jan 2019 11:25:52 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D76A3EBD; Fri, 18 Jan 2019 08:25:51 -0800 (PST) Received: from arrakis.emea.arm.com (arrakis.cambridge.arm.com [10.1.196.113]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E78503F557; Fri, 18 Jan 2019 08:25:49 -0800 (PST) Date: Fri, 18 Jan 2019 16:25:47 +0000 From: Catalin Marinas To: Julien Thierry Cc: linux-arm-kernel@lists.infradead.org, mark.rutland@arm.com, daniel.thompson@linaro.org, marc.zyngier@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, christoffer.dall@arm.com, james.morse@arm.com, joel@joelfernandes.org, kvmarm@lists.cs.columbia.edu Subject: Re: [PATCH v8 10/26] arm64: kvm: Unmask PMR before entering guest Message-ID: <20190118162547.GI118707@arrakis.emea.arm.com> References: <1546956464-48825-1-git-send-email-julien.thierry@arm.com> <1546956464-48825-11-git-send-email-julien.thierry@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1546956464-48825-11-git-send-email-julien.thierry@arm.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 08, 2019 at 02:07:28PM +0000, Julien Thierry wrote: > Interrupts masked by ICC_PMR_EL1 will not be signaled to the CPU. This > means that hypervisor will not receive masked interrupts while running a > guest. > > Avoid this by making sure ICC_PMR_EL1 is unmasked when we enter a guest. > > Signed-off-by: Julien Thierry > Cc: Christoffer Dall > Cc: Marc Zyngier > Cc: Catalin Marinas > Cc: Will Deacon > Cc: kvmarm@lists.cs.columbia.edu Acked-by: Catalin Marinas