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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 767CBC9EC7A for ; Mon, 12 Jan 2026 16:28:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:CC:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=A9VektO+CAqvLnE0XPzoW3dtG8/MTTC0nCaZjXHsMNQ=; b=Eng9WkiWyhGWFQBIVd1ASC03ks O0G36tvibHG9+Mct8s5Qci7yhfSxTuCBYrdrBwNn3t9g/dRmxV+PVgH8EeTmiFGMHBNkdW/eAOzjz v6RtjDEgyvGVZ6wF7X9hysiaTJA/IB21quMJ5r6k4xuTBj73heJp2a5D/abO/VCLr7AjA3lVZmdfP frmlcU9PQCZay1lLXaPElFl2Yr0zOelVc+N4xZyzCW9pUnSaiwx8h7t7aQxsqx6Dm6W0TgGpdyV56 27Jsewzhhe00+ekGQ4FPye+d+jxQlFHDtQW2IztlAOt65fy9hILCEY+uSjBNfEiKQkGnPTmmDD1/j fXr/TIUA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vfKmd-00000005j33-1BGs; Mon, 12 Jan 2026 16:28:47 +0000 Received: from sinmsgout03.his.huawei.com ([119.8.177.38]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vfKma-00000005j0b-0E2w for linux-arm-kernel@lists.infradead.org; Mon, 12 Jan 2026 16:28:46 +0000 dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=A9VektO+CAqvLnE0XPzoW3dtG8/MTTC0nCaZjXHsMNQ=; b=AeMRjfEsuuc2juhgk3xNdgTRVEM3ZYCBydzsqcnLjRTmLEhgy3FXeVtFQKl44yTTUynr6j74L V8HzsNjW77KU1TjGg/cE6SNqdz5B6vG6VqXqwP02Y0VXHwtlNI3hXJ9SokSTFS4+7tyWH8ilFOH pJw6RIT/JOkW3O9O1x0WzHo= Received: from frasgout.his.huawei.com (unknown [172.18.146.33]) by sinmsgout03.his.huawei.com (SkyGuard) with ESMTPS id 4dqd6k0GDmzMpPg; Tue, 13 Jan 2026 00:26:21 +0800 (CST) Received: from mail.maildlp.com (unknown [172.18.224.83]) by frasgout.his.huawei.com (SkyGuard) with ESMTPS id 4dqd926PttzJ46DD; Tue, 13 Jan 2026 00:28:22 +0800 (CST) Received: from dubpeml100005.china.huawei.com (unknown [7.214.146.113]) by mail.maildlp.com (Postfix) with ESMTPS id 8501640569; Tue, 13 Jan 2026 00:28:34 +0800 (CST) Received: from localhost (10.203.177.15) by dubpeml100005.china.huawei.com (7.214.146.113) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.36; Mon, 12 Jan 2026 16:28:33 +0000 Date: Mon, 12 Jan 2026 16:28:32 +0000 From: Jonathan Cameron To: Sascha Bischoff CC: "linux-arm-kernel@lists.infradead.org" , "kvmarm@lists.linux.dev" , "kvm@vger.kernel.org" , nd , "maz@kernel.org" , "oliver.upton@linux.dev" , Joey Gouly , Suzuki Poulose , "yuzenghui@huawei.com" , "peter.maydell@linaro.org" , "lpieralisi@kernel.org" , Timothy Hayes Subject: Re: [PATCH v3 27/36] KVM: arm64: gic-v5: Mandate architected PPI for PMU emulation on GICv5 Message-ID: <20260112162832.00005a62@huawei.com> In-Reply-To: <20260109170400.1585048-28-sascha.bischoff@arm.com> References: <20260109170400.1585048-1-sascha.bischoff@arm.com> <20260109170400.1585048-28-sascha.bischoff@arm.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.203.177.15] X-ClientProxiedBy: lhrpeml500009.china.huawei.com (7.191.174.84) To dubpeml100005.china.huawei.com (7.214.146.113) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260112_082844_368866_47017B54 X-CRM114-Status: UNSURE ( 8.02 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 9 Jan 2026 17:04:47 +0000 Sascha Bischoff wrote: > Make it mandatory to use the architected PPI when running a GICv5 > guest. Attempts to set anything other than the architected PPI (23) > are rejected. > > Additionally, KVM_ARM_VCPU_PMU_V3_INIT is relaxed to no longer require > KVM_ARM_VCPU_PMU_V3_IRQ to be called for GICv5-based guests. In this > case, the architectued PPI is automatically used. > > Documentation is bumped accordingly. > > Signed-off-by: Sascha Bischoff Reviewed-by: Jonathan Cameron