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Sat, 12 Nov 2022 00:01:47 -0800 (PST) MIME-Version: 1.0 References: <20221028105402.2030192-1-maz@kernel.org> <20221028105402.2030192-4-maz@kernel.org> In-Reply-To: <20221028105402.2030192-4-maz@kernel.org> From: Reiji Watanabe Date: Sat, 12 Nov 2022 00:01:31 -0800 Message-ID: Subject: Re: [PATCH v2 03/14] KVM: arm64: PMU: Always advertise the CHAIN event To: Marc Zyngier Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvmarm@lists.linux.dev, kvm@vger.kernel.org, James Morse , Suzuki K Poulose , Alexandru Elisei , Oliver Upton , Ricardo Koller Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Fri, Oct 28, 2022 at 3:54 AM Marc Zyngier wrote: > > Even when the underlying HW doesn't offer the CHAIN event > (which happens with QEMU), we can always support it as we're > in control of the counter overflow. > > Always advertise the event via PMCEID0_EL0. > > Signed-off-by: Marc Zyngier Reviewed-by: Reiji Watanabe 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 mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13985C4332F for ; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu On Fri, Oct 28, 2022 at 3:54 AM Marc Zyngier wrote: > > Even when the underlying HW doesn't offer the CHAIN event > (which happens with QEMU), we can always support it as we're > in control of the counter overflow. > > Always advertise the event via PMCEID0_EL0. > > Signed-off-by: Marc Zyngier Reviewed-by: Reiji Watanabe _______________________________________________ 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 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 56070C433FE for ; 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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 Fri, Oct 28, 2022 at 3:54 AM Marc Zyngier wrote: > > Even when the underlying HW doesn't offer the CHAIN event > (which happens with QEMU), we can always support it as we're > in control of the counter overflow. > > Always advertise the event via PMCEID0_EL0. > > Signed-off-by: Marc Zyngier Reviewed-by: Reiji Watanabe _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel