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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 60B7AC001B0 for ; Thu, 13 Jul 2023 11:27:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233126AbjGML1N (ORCPT ); Thu, 13 Jul 2023 07:27:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230281AbjGML1M (ORCPT ); Thu, 13 Jul 2023 07:27:12 -0400 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [IPv6:2a00:1450:4864:20::22b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A33D18E for ; Thu, 13 Jul 2023 04:27:11 -0700 (PDT) Received: by mail-lj1-x22b.google.com with SMTP id 38308e7fff4ca-2b6ff1ada5dso8485291fa.2 for ; Thu, 13 Jul 2023 04:27:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1689247630; x=1691839630; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=nWVD6bmDClvFRSgHCqYkZ5kEEDPyjY+6kQqvXpehczU=; b=j/blvGSuhTbKnMAFRDQrUhXSn7yLTC9w5s3t9kf5BYVoM41vuBu8nhJM1yEoiNy/s1 JUtxwRufax24YEQIZ/laS6QLGwY3lEI2C22vqcmse5vLWB1d/TI4ZDT7mz93CQRUfhGE owXMNbR70I/imqd/XPLkAqateUcTQTgMvDIU7Q1JL5deufkRwQ6m15r1n0KYsVOE55MX AIBMvGiVrv4EE/L30kEZatMNJOm9Hszz6vHSUlc0mUOikUj+IZF8LSxGMjQm70WOMzWd 4pdKISsaafvfgDnksoyulNqcnCxO9npdk5c9I6kukKHuY8E0cmQHV6yepjPtpmL7Tk57 xvIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689247630; x=1691839630; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=nWVD6bmDClvFRSgHCqYkZ5kEEDPyjY+6kQqvXpehczU=; b=PKpRB88Ie7W7qg0j+oLHFBUzm1XupyLR5YJ2Cf+0Gx/qALC97pj2+N0hNaF01PIPI7 Vm4bp8T218cUxHSkYF6QiQb+DkJxYEAygF/EVACzKtLwspZkX/pO+QVqaSmZDHuGq+2J zwhckSMVOYUzg3lih6rqsTTwB9Hlr9WyHRTj2JM18Bpm9gOHaAfVAkpwtkbNEOHDtmq6 8+k/Y/81I6zYOtKaCzpYMVdNBnLhMP5ZxZbiSnHH2x3uMBCPv+L9KGsgXLnye1ClrxXl /pxRhtKwTZxa+6HduPF9z8J07cijWyNpwf4ofelkHSvHp+MrkiKkfFeDzZuk5QHfcIaC Th1A== X-Gm-Message-State: ABy/qLYahcFq+6K8kUWTm8H5bYPz3FerEYIpyUC3V+6XZikAcWWg9mw7 Fjh4Mz35fxXF5YdTeDL1lxHFYw== X-Google-Smtp-Source: APBJJlFcPWkOYad3AO0C0/TthvEo+nczdd4M++HotWO7WY0hZba3ezfYNG1fTr+XKQATieG5UOrGWA== X-Received: by 2002:a05:6512:46d:b0:4fb:90f7:6769 with SMTP id x13-20020a056512046d00b004fb90f76769mr865262lfd.21.1689247629831; Thu, 13 Jul 2023 04:27:09 -0700 (PDT) Received: from localhost (2001-1ae9-1c2-4c00-20f-c6b4-1e57-7965.ip6.tmcz.cz. [2001:1ae9:1c2:4c00:20f:c6b4:1e57:7965]) by smtp.gmail.com with ESMTPSA id w22-20020aa7da56000000b0051e1a4454b2sm4134322eds.67.2023.07.13.04.27.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Jul 2023 04:27:09 -0700 (PDT) Date: Thu, 13 Jul 2023 13:27:08 +0200 From: Andrew Jones To: Anup Patel Cc: Paolo Bonzini , Atish Patra , Palmer Dabbelt , Paul Walmsley , Heiko Stuebner , Samuel Ortiz , kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/7] RISC-V: KVM: Extend ONE_REG to enable/disable multiple ISA extensions Message-ID: <20230713-3dd9e72ecd9f7926a2035f59@orel> References: <20230712161047.1764756-1-apatel@ventanamicro.com> <20230712161047.1764756-3-apatel@ventanamicro.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230712161047.1764756-3-apatel@ventanamicro.com> Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Wed, Jul 12, 2023 at 09:40:42PM +0530, Anup Patel wrote: > Currently, the ISA extension ONE_REG interface only allows enabling or > disabling one extension at a time. To improve this, we extend the ISA > extension ONE_REG interface (similar to SBI extension ONE_REG interface) > so that KVM user space can enable/disable multiple extensions in one > ioctl. > > Signed-off-by: Anup Patel > --- > arch/riscv/include/uapi/asm/kvm.h | 9 ++ > arch/riscv/kvm/vcpu_onereg.c | 153 ++++++++++++++++++++++++------ > 2 files changed, 133 insertions(+), 29 deletions(-) > Reviewed-by: Andrew Jones