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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 76AF2CA9EC3 for ; Thu, 31 Oct 2019 11:34:54 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id F058A2080F for ; Thu, 31 Oct 2019 11:34:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F058A2080F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 41E354A591; Thu, 31 Oct 2019 07:34:53 -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 2NLhSENsUwBN; Thu, 31 Oct 2019 07:34:52 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 4836D4A5C3; Thu, 31 Oct 2019 07:34:52 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id E46074A598 for ; Thu, 31 Oct 2019 07:34:51 -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 K-YHz+KPGnJv for ; Thu, 31 Oct 2019 07:34:49 -0400 (EDT) Received: from huawei.com (szxga07-in.huawei.com [45.249.212.35]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id A496E4A591 for ; Thu, 31 Oct 2019 07:34:49 -0400 (EDT) Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id E2EA3346CB27CE4E1EAC; Thu, 31 Oct 2019 19:34:42 +0800 (CST) Received: from [127.0.0.1] (10.173.222.27) by DGGEMS402-HUB.china.huawei.com (10.3.19.202) with Microsoft SMTP Server id 14.3.439.0; Thu, 31 Oct 2019 19:34:33 +0800 Subject: Re: [PATCH v2 08/36] irqchip/gic-v3: Detect GICv4.1 supporting RVPEID To: Marc Zyngier , , References: <20191027144234.8395-1-maz@kernel.org> <20191027144234.8395-9-maz@kernel.org> From: Zenghui Yu Message-ID: <5ab1a656-f92d-a32b-8c6a-09397eac9067@huawei.com> Date: Thu, 31 Oct 2019 19:34:32 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.2.0 MIME-Version: 1.0 In-Reply-To: <20191027144234.8395-9-maz@kernel.org> Content-Language: en-US X-Originating-IP: [10.173.222.27] X-CFilter-Loop: Reflected Cc: Lorenzo Pieralisi , Jason Cooper , Robert Richter , Jayachandran C , Thomas Gleixner 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-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Archived-At: List-Archive: Hi Marc, On 2019/10/27 22:42, Marc Zyngier wrote: > GICv4.1 supports the RVPEID ("Residency per vPE ID"), which allows for > a much efficient way of making virtual CPUs resident (to allow direct > injection of interrupts). > > The functionnality needs to be discovered on each and every redistributor > in the system, and disabled if the settings are inconsistent. > > Signed-off-by: Marc Zyngier Reviewed-by: Zenghui Yu _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm