From patchwork Tue Nov 28 14:53:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 1869340 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=TiuJk9aP; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ventanamicro.com header.i=@ventanamicro.com header.a=rsa-sha256 header.s=google header.b=eKWGG344; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=patchwork.ozlabs.org) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Sflpq2LVPz1yST for ; Wed, 29 Nov 2023 01:54:27 +1100 (AEDT) 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:References:In-Reply-To: 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: List-Owner; bh=rolLwdvUJigsgkO4kisyHGawiCA6E0GEdjjNOodVqko=; b=TiuJk9aPVAx5ZC 3C841u+egWP6Hdd4ISPUTc5II8oyhV7Tf4mZVpxKWTupW56FvkvkfW8gGe0fGYyf2mt8Dbrc8fSC5 mazYJPHvROpDToPE9lHmw49pzZjwbGTyT6DuzYrPpLPslokw6BLa7qeQxtNy0EOrl1jnHE1SRts0p PrcECShsyCEVI1NSAhSHN6ZJHKa0wlnMwGpLwGwTevqbpg+DXHKQ3UaYBUysx1Z7HCQksbJdco6YO Y/p0JRLQaDICNS59HUq/+xKidt9Qyc1TNQNvMFPv26P1YITpM9i9Yj+j/N3tD5IHwarQju32o7caQ 91i2NO3ZjEWf7srhO6dA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r7zTj-005ZFj-1B; Tue, 28 Nov 2023 14:54:23 +0000 Received: from mail-pg1-x52e.google.com ([2607:f8b0:4864:20::52e]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1r7zTf-005ZBo-1K for kvm-riscv@lists.infradead.org; Tue, 28 Nov 2023 14:54:21 +0000 Received: by mail-pg1-x52e.google.com with SMTP id 41be03b00d2f7-5bdfbd69bd5so4795893a12.1 for ; Tue, 28 Nov 2023 06:54:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1701183258; x=1701788058; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=zWjJzXo4ydUM1qBdZFj/A/LBdPnzjXBTEeDQn9bxklc=; b=eKWGG344ep2yCphIlD0OuYqL7Y4e10iQZnH5jWs1zO+AeCM1hyqBAFRAPYyrlLsoY2 KNNRnUR1S5JTOzd/frX+vWWqI/mYKpuIQ2iw76RsVzaNaPU3EOOINe/KswbxCKkRb4r0 vqMpWKnhPlskASBbsKa6vTPqHffDlHGgndTIHTW8fuEKPd1De04xHN3HCxOtAmdcwZJB vg5Z63Voj3wxgFVk3aKZqBOpC6tUIXOvzYbVNoaYeaHhrO0FNKpI6YtMjkYRB8CV4WdY hzk2ks3W8iqyemw9RwKsX6La5uzLXldH7V5aBv4DSbw1dujjREml42RjgQjz5+iRotw7 jdeg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701183258; x=1701788058; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=zWjJzXo4ydUM1qBdZFj/A/LBdPnzjXBTEeDQn9bxklc=; b=u47pIpalVmswoQlEJyNCA3Jm+OPIJM/Iu6IiJVMiGmY0ppZsvjbyCMg9ee1wsdO6xF xyK9bWITCUP7VbikyrfaZdqcoszdZCC9FIH28m+blhPojbbcqjlej6EC+O7pryll5u9w 508Yh/6W107HC0/HBdZ1/mrCR3XP39esreDu+rld+EDUupCqJnlwnUX6ZuUe1OqNAIwD mkZj8h+CfijDYEl32bnb3Mz1k2xzVQIISEZ/8YupdPbLNd4K6B3IohL8m56Kp8Xls1AH kAWW0hjiZ6TjH0ws3ddMam5vhkr2uerc/Lglkf0rKfBS1tiSEK2gneCmPOBwjDkBCIKm MfvQ== X-Gm-Message-State: AOJu0Ywg42LPabvqY/gLJIIumsk4DphfNkzIpzUaWRojEAQkbk1nuYJ2 UHkeJkmcZKm8rcrJMcxu4SpIlw== X-Google-Smtp-Source: AGHT+IGxW136Vwz0iG0z8Bd+73y8peGGLL8YdmZ8vllqxs8AnDN8I+cKti2HazA7AW6wj4+a/QmmRQ== X-Received: by 2002:a17:90b:4b0e:b0:285:b687:b831 with SMTP id lx14-20020a17090b4b0e00b00285b687b831mr14391825pjb.10.1701183257699; Tue, 28 Nov 2023 06:54:17 -0800 (PST) Received: from anup-ubuntu-vm.localdomain ([103.97.165.210]) by smtp.gmail.com with ESMTPSA id u11-20020a170902e80b00b001bf11cf2e21sm10281552plg.210.2023.11.28.06.54.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Nov 2023 06:54:17 -0800 (PST) From: Anup Patel To: Paolo Bonzini , Atish Patra , Palmer Dabbelt , Paul Walmsley , Shuah Khan Cc: Anup Patel , Andrew Jones , devicetree@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Anup Patel Subject: [PATCH 02/15] RISC-V: KVM: Allow Zbc extension for Guest/VM Date: Tue, 28 Nov 2023 20:23:44 +0530 Message-Id: <20231128145357.413321-3-apatel@ventanamicro.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231128145357.413321-1-apatel@ventanamicro.com> References: <20231128145357.413321-1-apatel@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231128_065419_448062_7CC44852 X-CRM114-Status: UNSURE ( 8.50 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: We extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Zbc extension for Guest/VM. Signed-off-by: Anup Patel --- arch/riscv/include/uapi/asm/kvm.h | 1 + arch/riscv/kvm/vcpu_onereg.c | 2 ++ 2 files changed, 3 insertions(+) Content analysis details: (-0.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:52e listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: kvm-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "kvm-riscv" Errors-To: kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org We extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Zbc extension for Guest/VM. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones --- 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 60d3b21dead7..518b368b41e5 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -139,6 +139,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZIHPM, KVM_RISCV_ISA_EXT_SMSTATEEN, KVM_RISCV_ISA_EXT_ZICOND, + KVM_RISCV_ISA_EXT_ZBC, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index f8c9fa0c03c5..f789517c9fae 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -42,6 +42,7 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(SVPBMT), KVM_ISA_EXT_ARR(ZBA), KVM_ISA_EXT_ARR(ZBB), + KVM_ISA_EXT_ARR(ZBC), KVM_ISA_EXT_ARR(ZBS), KVM_ISA_EXT_ARR(ZICBOM), KVM_ISA_EXT_ARR(ZICBOZ), @@ -92,6 +93,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_SVNAPOT: case KVM_RISCV_ISA_EXT_ZBA: case KVM_RISCV_ISA_EXT_ZBB: + case KVM_RISCV_ISA_EXT_ZBC: case KVM_RISCV_ISA_EXT_ZBS: case KVM_RISCV_ISA_EXT_ZICNTR: case KVM_RISCV_ISA_EXT_ZICOND: