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=-8.5 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 2C8A6C433DB for ; Tue, 16 Mar 2021 10:46:04 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 8ABDA64F4C for ; Tue, 16 Mar 2021 10:46:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8ABDA64F4C Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.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 068224B581; Tue, 16 Mar 2021 06:46:03 -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=@google.com 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 CWatyAxy6jz7; Tue, 16 Mar 2021 06:46:02 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 14A824B603; Tue, 16 Mar 2021 06:46:02 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 3CE654B603 for ; Tue, 16 Mar 2021 06:46:00 -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 2oqlBATU9uLO for ; Tue, 16 Mar 2021 06:45:59 -0400 (EDT) Received: from mail-wr1-f41.google.com (mail-wr1-f41.google.com [209.85.221.41]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 441104B581 for ; Tue, 16 Mar 2021 06:45:59 -0400 (EDT) Received: by mail-wr1-f41.google.com with SMTP id o16so7167250wrn.0 for ; Tue, 16 Mar 2021 03:45:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=Zsdz2h8hf8Y/24lVeadYaeeQAMOF3TALsCOQcWpVAJk=; b=SJTMsl6KBrovYMSkF7DcCJIHr0K+jwCLFtt5KCAHC4SmzQZMxaKdsw4YmOZ6G8gQ/i F54HseY7kRTu5nSHt0RbnDBuMDiPhg324fyoJelGspMcblDCPxRPcTQ4ar6eoV9mVIlm qTFoHlBhuBgya022zZGChk+AuO5qVI1rZReb5GhTu3+QsezemBJqLbqN/HibJ/uMoxSm SIyx1yXH6rEgYgr8M6/PhZ58ySzz4360Vx59ApLJ2L/Ko3guwywAckBrVjdDgstbNPKR Dj0+wLofArhDqFekakXYvgpiOLeiZbsKcI5aY7IlY7hCv43TEs3oaYM2NnUEc2U1306r dEnw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=Zsdz2h8hf8Y/24lVeadYaeeQAMOF3TALsCOQcWpVAJk=; b=R7JkJN01eM7kQLMePUPoxPZzQYxPbfZ8a8eFphgvOLpmDakB1sjW9PxKQGmjFHNkHc Y/pM3F5IhOHoAyCB24NRSKMfL3479hfviD7RG1h1FRiyY+8zuNH6+GWnJtzoBpwaCAi+ 9hXpDVLR8MZtl07E4Uqx6HCO6FHYFKYBZXW4jy3/Ejr+iMA9QIJSl9GMwKsgOIvXLWQm HoU5DelPeEs63Uaw9FrTA6iaaXSb6mvIN/eM6u38ze5Nf9yZ7kmCiU19QKiM27ARAZ0a oVvjl+XuBGT7uoPmNqnxRLN1maBxsBv2ZNtdAsQR6AR83xOVJPsmY82Rjdrsj5/b1G3Z TvXA== X-Gm-Message-State: AOAM53274LEDD0NyQKn21sfqvd/5wdByhIh0g2pdyFfbr7sc3mz4Cq3c NxGX6/mjMpjkgQ2BLAS0u06dZQ== X-Google-Smtp-Source: ABdhPJzzT1u4K5ULsw5LvTSW/vhY00CzqQZU1WwxkZhBult5lmWWoNSeYotgmhqJqS602sEukhDbsw== X-Received: by 2002:adf:a418:: with SMTP id d24mr4111334wra.187.1615891558225; Tue, 16 Mar 2021 03:45:58 -0700 (PDT) Received: from google.com (230.69.233.35.bc.googleusercontent.com. [35.233.69.230]) by smtp.gmail.com with ESMTPSA id j203sm2868593wmj.40.2021.03.16.03.45.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Mar 2021 03:45:58 -0700 (PDT) Date: Tue, 16 Mar 2021 10:45:55 +0000 From: Quentin Perret To: Marc Zyngier Subject: Re: [PATCH 08/10] KVM: arm64: Add a nVHE-specific SVE VQ reset hypercall Message-ID: References: <20210316101312.102925-1-maz@kernel.org> <20210316101312.102925-9-maz@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210316101312.102925-9-maz@kernel.org> Cc: kernel-team@android.com, kvm@vger.kernel.org, Catalin Marinas , kvmarm@lists.cs.columbia.edu, broonie@kernel.org, Will Deacon , dave.martin@arm.com, linux-arm-kernel@lists.infradead.org, daniel.kiss@arm.com 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-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu On Tuesday 16 Mar 2021 at 10:13:10 (+0000), Marc Zyngier wrote: > diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h > index c4afe3d3397f..9108ccc80653 100644 > --- a/arch/arm64/include/asm/kvm_host.h > +++ b/arch/arm64/include/asm/kvm_host.h > @@ -593,7 +593,9 @@ int kvm_test_age_hva(struct kvm *kvm, unsigned long hva); > void kvm_arm_halt_guest(struct kvm *kvm); > void kvm_arm_resume_guest(struct kvm *kvm); > > -#define kvm_call_hyp_nvhe(f, ...) \ > +static inline void __kvm_reset_sve_vq(void) {} Why is this one needed? With an explicit call to kvm_call_hyp_nvhe() you shouldn't need to provide a VHE implementation I think. Thanks, Quentin _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm