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=-3.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 6FB3BC433E0 for ; Wed, 5 Aug 2020 12:13:47 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id DD03022CBE for ; Wed, 5 Aug 2020 12:13:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="DN/pSFKG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DD03022CBE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org 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 82D934B82B; Wed, 5 Aug 2020 08:13:46 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@kernel.org 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 aUfCk-1XeGPN; Wed, 5 Aug 2020 08:13:41 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id AE8644B830; Wed, 5 Aug 2020 08:13:41 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id D43834B82B for ; Wed, 5 Aug 2020 08:13:40 -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 uvu+hbzq85No for ; Wed, 5 Aug 2020 08:13:39 -0400 (EDT) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 825C64B803 for ; Wed, 5 Aug 2020 08:13:39 -0400 (EDT) Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4823D22CBB; Wed, 5 Aug 2020 12:13:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596629618; bh=nPo8SyJqUjJ9z0rJpRBpkkeu083JsBlxNsr28VDgX9c=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=DN/pSFKGnrcuF/DioT3fQLhKd9KxDsJUYUl0Lo82SO0RrZoUoAMS0p+RF2oNdR7j9 0icBWKv46n1IcKVg4n5Scb3ZM8QiZIQQXUbXpl5k3PXkczj+lJ2JkMAkJZ0vTFPAzo AI+uK6MDywGiCleiIYO1jyfFfMh3cLLcyGIfXtWI= Received: from disco-boy.misterjones.org ([51.254.78.96] helo=www.loen.fr) by disco-boy.misterjones.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.92) (envelope-from ) id 1k3IIa-0001gS-Ol; Wed, 05 Aug 2020 13:13:36 +0100 MIME-Version: 1.0 Date: Wed, 05 Aug 2020 13:13:36 +0100 From: Marc Zyngier To: Jingyi Wang Subject: Re: [kvm-unit-tests PATCH v3 00/10] arm/arm64: Add IPI/LPI/vtimer latency test In-Reply-To: <957a4657-7e17-b173-ea4d-10c29ab9e3cd@huawei.com> References: <20200731074244.20432-1-wangjingyi11@huawei.com> <957a4657-7e17-b173-ea4d-10c29ab9e3cd@huawei.com> User-Agent: Roundcube Webmail/1.4.5 Message-ID: <0bd81d1da9040fce660af46763507ac2@kernel.org> X-Sender: maz@kernel.org X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: wangjingyi11@huawei.com, drjones@redhat.com, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, eric.auger@redhat.com, wanghaibin.wang@huawei.com, yuzenghui@huawei.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Cc: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu 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: On 2020-08-05 12:54, Jingyi Wang wrote: > Hi all, > > Currently, kvm-unit-tests only support GICv3 vLPI injection. May I ask > is there any plan or suggestion on constructing irq bypass mechanism > to test vLPI direct injection in kvm-unit-tests? I'm not sure what you are asking for here. VLPIs are only delivered from a HW device, and the offloading mechanism isn't visible from userspace (you either have an enabled GICv4 implementation, or you don't). There are ways to *trigger* device MSIs from userspace and inject them in a guest, but that's only a debug feature, which shouldn't be enabled on a production system. M. -- Jazz is not dead. It just smells funny... _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm