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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D6ED0CA0EDC for ; Wed, 20 Aug 2025 13:36:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=PjilUtUxWNLxvU6R0ehWZKmPDRuJQMld09FKc0aZ60Q=; b=rrvcBJ9z5+KvOV KikHhaOu6dlm5zxwo2eVXCZOZUC2pD+fdruZBCi/cpmHcyci4l7eAl/OYzlXk53QAgTAFfXoOvnfK WvWPuh09tJRGujah3o97Yu1IHTRhP1OW7PU1L4drLuSqiCbN8lZfzulG+kKcNxc6LJJ+Sd6ns7nAo BMSmAgy+62fkJtZMlAQDwu1pH3vbBnt4xFDXaIMmTq8Q9lvJ9AlxgjtnOKiSO1fe/iKJHiO0dDxJe kI7XZb4eZzBnoR7PCdlJ1DENQhdGKleqA78wVzwtNAPrTR9NSfbC3/dO6mzmSkX17HmTuNIrEp6YR fcCF9DQlQWVV/3cMya7A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uoiyl-0000000DpM7-3DFQ; Wed, 20 Aug 2025 13:35:51 +0000 Received: from out30-111.freemail.mail.aliyun.com ([115.124.30.111]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uoiQ9-0000000DhBn-07wN; Wed, 20 Aug 2025 13:00:07 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1755694798; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=XgpkwoPcHNm5bqngyKgaAijv3704PoYrCd7F3xEpnsE=; b=iwzNjPKfd3qF7JRHi/sTnpLV9nlq37F/fh7Hv9myKDzjQnX0U+i8fGUs1zuoShbzB8gdmkvHSJFSLsNuT/PfEpWEgDmhUyn1Dws+58PoQwhhj++IOyHW2sjshLXUihvTiOhHX9Uun2COUyvKdrYsgoH4K6VnEc6jcCb16bglsso= Received: from localhost.localdomain(mailfrom:fangyu.yu@linux.alibaba.com fp:SMTPD_---0WmCQaZ-_1755694794 cluster:ay36) by smtp.aliyun-inc.com; Wed, 20 Aug 2025 20:59:55 +0800 From: fangyu.yu@linux.alibaba.com To: anup@brainfault.org, atish.patra@linux.dev, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr Cc: guoren@kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Fangyu Yu Subject: [PATCH v3 0/2] Fix hgatp mode settings within kvm_riscv_gstage_vmid_detect Date: Wed, 20 Aug 2025 20:59:50 +0800 Message-Id: <20250820125952.71689-1-fangyu.yu@linux.alibaba.com> X-Mailer: git-send-email 2.39.3 (Apple Git-146) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250820_060005_589425_8816CA78 X-CRM114-Status: UNSURE ( 4.60 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Fangyu Yu According to the RISC-V Privileged Architecture Spec, when MODE=Bare is selected,software must write zero to the remaining fields of hgatp. So,use a valid mode when detecting vmids of the HW supported,meanwhile remove unnecessary HGATP csr_read. --- Changes in v3: - Add "Fixes" tag. - Involve("RISC-V KVM: Remove unnecessary HGATP csr_read"), which depends on patch 1. Changes in v2: - Fixed build error since kvm_riscv_gstage_mode() has been modified. --- Fangyu Yu (1): RISC-V: KVM: Write hgatp register with valid mode bits Guo Ren (Alibaba DAMO Academy) (1): RISC-V KVM: Remove unnecessary HGATP csr_read arch/riscv/kvm/vmid.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) -- 2.49.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv