From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-113.freemail.mail.aliyun.com (out30-113.freemail.mail.aliyun.com [115.124.30.113]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E8BD3292936; Fri, 27 Mar 2026 01:55:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.113 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774576525; cv=none; b=drZS/Gas2NGzYrEjOoBLWFlkvXZJoTTwwhE0zg/nMTIUAmqxtLk0+pP4Thv31omr7bvf+xS5IbXQl6UIAjjsqvUNU1QAB3taggFlDwCNavcOC5UFNJxqRhUASU6ebhibtxbhw1E0re2GFd2QlHGMZqQItc2tzwr70ovAbUI+YvA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774576525; c=relaxed/simple; bh=gmWHcK0itBJflslaMey9sIx8Sa4CGA6KauodlmEmpyU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=uzTRtwTXirxZ1i1zLOpymODM1FlbRu5cDh5NBp0aXPPHHPf3ldTGWL9xUt4aNzKVG0lCXdIaNLgx/zLsVEl+yFN97t52KHZ6mwS2ao3O8TAMb8yxXJXUjiCiCotwevbmBKDJFYIbzXqWd5MMgnC20L5MRfaLinUzGwCRZzN2rZI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=jWrjE0pW; arc=none smtp.client-ip=115.124.30.113 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="jWrjE0pW" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1774576513; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=2uLbyltTDfwJ1fVF2fuBWPNnUybJwtx0WCtLyELmNt4=; b=jWrjE0pWJ4cIlazPFmbgrtcGGVMJIL9vWDugyBefcv4MW0QO3LUL1cBQ19e1Mz+tnwfGdarNB98uB3ox7xUlAN4RIj4g+FmqN6f5YFoSZVbibbFsKG6dad+Zup7zpNc3JymBr80CfIgEk9CimWX4SozGtWC2MHyFBwK8/5mWUt8= X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R221e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033037033178;MF=fangyu.yu@linux.alibaba.com;NM=1;PH=DS;RN=17;SR=0;TI=SMTPD_---0X.mTcjL_1774576510; Received: from localhost.localdomain(mailfrom:fangyu.yu@linux.alibaba.com fp:SMTPD_---0X.mTcjL_1774576510 cluster:ay36) by smtp.aliyun-inc.com; Fri, 27 Mar 2026 09:55:11 +0800 From: fangyu.yu@linux.alibaba.com To: anup@brainfault.org Cc: alex@ghiti.fr, andrew.jones@oss.qualcomm.com, aou@eecs.berkeley.edu, atish.patra@linux.dev, corbet@lwn.net, fangyu.yu@linux.alibaba.com, guoren@kernel.org, kvm-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, palmer@dabbelt.com, pbonzini@redhat.com, pjw@kernel.org, radim.krcmar@oss.qualcomm.com Subject: Re: Re: [PATCH v5 1/3] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode Date: Fri, 27 Mar 2026 09:55:06 +0800 Message-Id: <20260327015506.79079-1-fangyu.yu@linux.alibaba.com> X-Mailer: git-send-email 2.39.3 (Apple Git-146) In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit >> diff --git a/arch/riscv/kvm/vmid.c b/arch/riscv/kvm/vmid.c >> index cf34d448289d..c15bdb1dd8be 100644 >> --- a/arch/riscv/kvm/vmid.c >> +++ b/arch/riscv/kvm/vmid.c >> @@ -26,7 +26,8 @@ static DEFINE_SPINLOCK(vmid_lock); >> void __init kvm_riscv_gstage_vmid_detect(void) >> { >> /* Figure-out number of VMID bits in HW */ >> - csr_write(CSR_HGATP, (kvm_riscv_gstage_mode << HGATP_MODE_SHIFT) | HGATP_VMID); >> + csr_write(CSR_HGATP, (kvm_riscv_gstage_mode(kvm_riscv_gstage_max_pgd_levels) << >> + HGATP_MODE_SHIFT) | HGATP_VMID); >> vmid_bits = csr_read(CSR_HGATP); >> vmid_bits = (vmid_bits & HGATP_VMID) >> HGATP_VMID_SHIFT; >> vmid_bits = fls_long(vmid_bits); >> -- >> 2.50.1 >> >> > >Regards, >Anup Hi Anup: Thanks for the review. I'll incorporate all of the above changes and post an updated version (v6) shortly. Thanks, Fangyu