From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Fedin Subject: RE: [PATCH] KVM: arm/arm64: BUG FIX: Do not inject spurious interrupts Date: Fri, 25 Sep 2015 17:01:45 +0300 Message-ID: <012f01d0f79a$b6fc59c0$24f50d40$@samsung.com> References: <1440676282-2152-1-git-send-email-p.fedin@samsung.com> <20150827124442.GD29439@cbox> <00ca01d0e171$7ff1c710$7fd55530$@samsung.com> <20150914112932.GH15712@cbox> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, 'Marc Zyngier' To: 'Christoffer Dall' Return-path: Received: from mailout2.w1.samsung.com ([210.118.77.12]:34064 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932288AbbIYOBt (ORCPT ); Fri, 25 Sep 2015 10:01:49 -0400 Received: from eucpsbgm1.samsung.com (unknown [203.254.199.244]) by mailout2.w1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0NV800KFNKAYJ990@mailout2.w1.samsung.com> for kvm@vger.kernel.org; Fri, 25 Sep 2015 15:01:46 +0100 (BST) In-reply-to: <20150914112932.GH15712@cbox> Content-language: ru Sender: kvm-owner@vger.kernel.org List-ID: Hello! > The alternative is to just call compute_pending which does nothing more > than a few bitwise and/or operations plus a couple of handfuls of > load/stores on this IRQ injection path, so I don't see the problem doing > this. I looked at it, convinced. After all, resetting pending_on_cpu saves from unnecessary wakeups IIRC. Posting v2... Kind regards, Pavel Fedin Expert Engineer Samsung Electronics Research center Russia