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 DB4A2C433EF for ; Fri, 4 Mar 2022 20:15:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231381AbiCDUPz (ORCPT ); Fri, 4 Mar 2022 15:15:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32886 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231367AbiCDUPh (ORCPT ); Fri, 4 Mar 2022 15:15:37 -0500 Received: from mail-qt1-x82a.google.com (mail-qt1-x82a.google.com [IPv6:2607:f8b0:4864:20::82a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8CF18210460 for ; Fri, 4 Mar 2022 12:11:26 -0800 (PST) Received: by mail-qt1-x82a.google.com with SMTP id bt3so8415065qtb.0 for ; Fri, 04 Mar 2022 12:11:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=qsIO2ya+cektsJMcKlRJepNqbeDF38Da8NmtSJ8s3gU=; b=N8FaQlw5OIEM3nPnrnG5ZP2TJJy/b2ccHKMgsAFTjSQD2qsuFgofIv2+b3o9BK1ZpN //j8EXvZd85ZIPGjHfXBgbqKRWSWnxfdpuL+fQK0aZMczrozI6OmH95uiuITNr3tToBt yo+IBGiuJ9MYEMUby4Y+iz940dgwRcjRcLlEM7LTUPJ0t2jcHcO6JqIo+/zKqJ0GRl60 kROrc93K3cYxxoudnV2HZfdlRMDAkvxBsaT0Z5V1O3vN9b05UwxF9kyv7DdQRgFoCRC6 YDEKxgc2mwGeYdA9wU3GErE1QEoOLqHp0DXpEukTcS8Ks0s/Bm36xscy4D8XcNBCJLSL 7Lpg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=qsIO2ya+cektsJMcKlRJepNqbeDF38Da8NmtSJ8s3gU=; b=zV5AVE/oVBRPQNovoutJ3tt8McJQi8LmfRJCq/LOvlNf2ChguK9T0bEKscbtjHvgwv dLwJspVvk/euQQz/LkgZ8jXf4HXmqDODOinMo04rBsGuykjH0Ft/+lW2Uw1fpudV7VsL 86UhuacsSVixr3OrhMZtJ2YTizRnCam8h1NbvqUgCuYUyHGRmxDDN6KyiFW5pG3Wa/yi SoxMqP85v42l2L9vqLQIZZEOGcvP5aWinmTn321UO20gW2o8KmU88yppXJNEOUPfo4ro t1KPBI2o4clhpTxbm4J0Cwse8wt2fhuWinF2ssqbMR8Onrt+fSuzCoM0iwXL6xbSs+aQ WHog== X-Gm-Message-State: AOAM533Kxhiulc7CI4g8FzBIiMr+jWDa4Ci8AZV5yWBHNOv0oex9vWtJ ghg9JgMJrmczFEpcE2vzFT2xV5rsZO131A== X-Google-Smtp-Source: ABdhPJyBu28CBsOFIzyM9DOgbXjnNnxtobqGHxzYB0P4cAzhg/+V3vQ13sjTBnimNgfPW2IUppEExQ== X-Received: by 2002:a05:622a:1b8d:b0:2d1:38ca:6b1 with SMTP id bp13-20020a05622a1b8d00b002d138ca06b1mr396609qtb.688.1646424645574; Fri, 04 Mar 2022 12:10:45 -0800 (PST) Received: from rivos-atish.. (adsl-70-228-75-190.dsl.akrnoh.ameritech.net. [70.228.75.190]) by smtp.gmail.com with ESMTPSA id 20-20020ac84e94000000b002de8f564305sm4605481qtp.1.2022.03.04.12.10.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Mar 2022 12:10:45 -0800 (PST) From: Atish Patra To: linux-kernel@vger.kernel.org Cc: Atish Patra , Atish Patra , Anup Patel , Damien Le Moal , devicetree@vger.kernel.org, Jisheng Zhang , Krzysztof Kozlowski , kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, Palmer Dabbelt , Paul Walmsley , Rob Herring Subject: [RFC PATCH v2 4/7] RISC-V: KVM: Remove 's' & 'u' as valid ISA extension Date: Fri, 4 Mar 2022 12:10:17 -0800 Message-Id: <20220304201020.810380-5-atishp@rivosinc.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220304201020.810380-1-atishp@rivosinc.com> References: <20220304201020.810380-1-atishp@rivosinc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There are no ISA extension defined as 's' & 'u' in RISC-V specifications. The misa register defines 's' & 'u' bit as Supervisor/User privilege mode enabled. But it should not appear in the ISA extension in the device tree. Remove those from the allowed ISA extension for kvm. Signed-off-by: Atish Patra --- arch/riscv/kvm/vcpu.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c index 624166004e36..3ae545e7b398 100644 --- a/arch/riscv/kvm/vcpu.c +++ b/arch/riscv/kvm/vcpu.c @@ -43,9 +43,7 @@ const struct kvm_stats_header kvm_vcpu_stats_header = { riscv_isa_extension_mask(d) | \ riscv_isa_extension_mask(f) | \ riscv_isa_extension_mask(i) | \ - riscv_isa_extension_mask(m) | \ - riscv_isa_extension_mask(s) | \ - riscv_isa_extension_mask(u)) + riscv_isa_extension_mask(m)) static void kvm_riscv_reset_vcpu(struct kvm_vcpu *vcpu) { -- 2.30.2