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 8B8E3C7EE2C for ; Fri, 20 Jun 2025 10:36:55 +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:Cc:To:Message-Id:Date:From:References: In-Reply-To:Mime-Version:Subject:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=d2JrDsyrNaR/7izAMB71s5JaZtN/K6BqfsWhb+Oxhng=; b=UQ3eqlkkO+AH6N RCMEkbQyZbhVzC4wlp7/WG9ZpvMRyCY6z2GRu1VV8fD/+akM+dm3mDKt4iLkjp7QKsGvFaGj1SWXY hcNJ0PBd0B0fea+9GTCegVCjtHjm4chE02F/aYbSMHrR/jsw2nlx73xe2vCnKsQjkUsyUsU4rLwXo VdDf22UnaVjhC0mrBc7rgYfkwV0LC+sL2FWIfGW0M5cY7sbEwoe0otcddNdRtmrTmdDtz5n7i0RA7 E4Xcp20Mb86BIbnb/9J7cqivcbyAVcn4dwG/MWEQvDlmfiCT9+G/5JZwVnm7MFTA8X72xTPHCc861 ZLzZF2A0SX8XbT/N8n5A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uSZ74-0000000FLqi-2stI; Fri, 20 Jun 2025 10:36:50 +0000 Received: from sg-3-14.ptr.tlmpb.com ([101.45.255.14]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uSYEP-0000000FDh4-1wj8 for linux-riscv@lists.infradead.org; Fri, 20 Jun 2025 09:40:22 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=s1; d=lanxincomputing-com.20200927.dkim.feishu.cn; t=1750412410; h=from:subject:mime-version:from:date:message-id:subject:to:cc: reply-to:content-type:mime-version:in-reply-to:message-id; bh=DSXFLaHV+ytdpl3MS+800NYkToDbPrkHYChL5TyTBVY=; b=A1w8XwHKyXRXqXK0kiJJfA7qBwtdVqdy/pA72el2dkYJn6d+rFciZdMyDjceeek/Dw3MfZ zRD86STxKQ4YQpPzjJyeE57ILW/U07RINDFjTv+1eooJU34VGvBl8mZec+QPll/A3AX5Q7 YlME64KyfkL2cuGKCUw10BPaZoMKTOL927tukSVh552zm8p4x6EP3HH938i7JEHxRQA1vV pLxM9YO+WJaNtn8V5ZRllSZVpk52UUrkEIS8q9NGZ2YV1isBwo00wqUmfdVXWL8LRq95Kz 9M8uqkOwpRlGG/CPztZfGnYX+sZQaEUDzwc1+OOZNL4yY3wpC55GGDW6xDHLyg== Subject: Re: [PATCH 2/5] RISC-V: KVM: Allow Zicbop extension for Guest/VM Mime-Version: 1.0 In-Reply-To: References: X-Lms-Return-Path: From: "Nutty Liu" Date: Fri, 20 Jun 2025 17:40:06 +0800 User-Agent: Mozilla Thunderbird Message-Id: <655ef636-704d-4a6d-9de7-5eb44282af42@lanxincomputing.com> X-Original-From: Nutty Liu To: , , , , , Cc: , , , Content-Language: en-US Received: from [127.0.0.1] ([180.165.3.105]) by smtp.feishu.cn with ESMTPS; Fri, 20 Jun 2025 17:40:07 +0800 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250620_024021_864540_C904CC9F X-CRM114-Status: UNSURE ( 9.95 ) 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 On 6/17/2025 9:10 PM, zhouquan@iscas.ac.cn wrote: > From: Quan Zhou > > Extend the KVM ISA extension ONE_REG interface to allow KVM user space > to detect and enable Zicbop extension for Guest/VM. > > Signed-off-by: Quan Zhou > --- > arch/riscv/include/uapi/asm/kvm.h | 1 + > arch/riscv/kvm/vcpu_onereg.c | 2 ++ > 2 files changed, 3 insertions(+) > > diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h > index 0863ca178066..56959d277e86 100644 > --- a/arch/riscv/include/uapi/asm/kvm.h > +++ b/arch/riscv/include/uapi/asm/kvm.h > @@ -185,6 +185,7 @@ enum KVM_RISCV_ISA_EXT_ID { > KVM_RISCV_ISA_EXT_ZICCRSE, > KVM_RISCV_ISA_EXT_ZAAMO, > KVM_RISCV_ISA_EXT_ZALRSC, > + KVM_RISCV_ISA_EXT_ZICBOP, > KVM_RISCV_ISA_EXT_MAX, > }; > > diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c > index b08a22eaa7a7..d444ec9e9e8e 100644 > --- a/arch/riscv/kvm/vcpu_onereg.c > +++ b/arch/riscv/kvm/vcpu_onereg.c > @@ -68,6 +68,7 @@ static const unsigned long kvm_isa_ext_arr[] = { > KVM_ISA_EXT_ARR(ZFH), > KVM_ISA_EXT_ARR(ZFHMIN), > KVM_ISA_EXT_ARR(ZICBOM), > + KVM_ISA_EXT_ARR(ZICBOP), > KVM_ISA_EXT_ARR(ZICBOZ), > KVM_ISA_EXT_ARR(ZICCRSE), > KVM_ISA_EXT_ARR(ZICNTR), > @@ -171,6 +172,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) > case KVM_RISCV_ISA_EXT_ZFA: > case KVM_RISCV_ISA_EXT_ZFH: > case KVM_RISCV_ISA_EXT_ZFHMIN: > + case KVM_RISCV_ISA_EXT_ZICBOP: > case KVM_RISCV_ISA_EXT_ZICCRSE: > case KVM_RISCV_ISA_EXT_ZICNTR: > case KVM_RISCV_ISA_EXT_ZICOND: Seems 'RISCV_ISA_EXT_ZICBOP' should be declared in 'arch/riscv/include/asm/hwcap.h' ? Otherwise, Reviewed-by: Nutty Liu Thanks, Nutty _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv