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[2620:137:e000::1:20]) by mx.google.com with ESMTP id t10-20020a056a00138a00b0058df20ff0e3si4827834pfg.54.2023.01.27.03.44.09; Fri, 27 Jan 2023 03:44:29 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=arm.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232385AbjA0Llr (ORCPT + 99 others); Fri, 27 Jan 2023 06:41:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60076 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233816AbjA0LlM (ORCPT ); Fri, 27 Jan 2023 06:41:12 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 730BC22DD3; Fri, 27 Jan 2023 03:40:45 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id BC9521758; Fri, 27 Jan 2023 03:41:10 -0800 (PST) Received: from ewhatever.cambridge.arm.com (ewhatever.cambridge.arm.com [10.1.197.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 3E5DB3F64C; Fri, 27 Jan 2023 03:40:26 -0800 (PST) From: Suzuki K Poulose To: kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: suzuki.poulose@arm.com, Alexandru Elisei , Andrew Jones , Christoffer Dall , Fuad Tabba , Jean-Philippe Brucker , Joey Gouly , Marc Zyngier , Mark Rutland , Oliver Upton , Paolo Bonzini , Quentin Perret , Steven Price , Thomas Huth , Will Deacon , Zenghui Yu , linux-coco@lists.linux.dev, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [RFC kvmtool 14/31] arm64: Add configuration step for Realms Date: Fri, 27 Jan 2023 11:39:15 +0000 Message-Id: <20230127113932.166089-15-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230127113932.166089-1-suzuki.poulose@arm.com> References: <20230127112248.136810-1-suzuki.poulose@arm.com> <20230127113932.166089-1-suzuki.poulose@arm.com> MIME-Version: 1.0 X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1756175919034715311?= X-GMAIL-MSGID: =?utf-8?q?1756175919034715311?= Realm must be configured before it is created. Add the step to specify the parameters for the Realm. Signed-off-by: Suzuki K Poulose --- arm/aarch64/realm.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/arm/aarch64/realm.c b/arm/aarch64/realm.c index 3a4adb66..31543e55 100644 --- a/arm/aarch64/realm.c +++ b/arm/aarch64/realm.c @@ -2,6 +2,29 @@ #include + +static void realm_configure_hash_algo(struct kvm *kvm) +{ + struct kvm_cap_arm_rme_config_item hash_algo_cfg = { + .cfg = KVM_CAP_ARM_RME_CFG_HASH_ALGO, + .hash_algo = kvm->arch.measurement_algo, + }; + + struct kvm_enable_cap rme_config = { + .cap = KVM_CAP_ARM_RME, + .args[0] = KVM_CAP_ARM_RME_CONFIG_REALM, + .args[1] = (u64)&hash_algo_cfg, + }; + + if (ioctl(kvm->vm_fd, KVM_ENABLE_CAP, &rme_config) < 0) + die_perror("KVM_CAP_RME(KVM_CAP_ARM_RME_CONFIG_REALM) hash_algo"); +} + +static void realm_configure_parameters(struct kvm *kvm) +{ + realm_configure_hash_algo(kvm); +} + void kvm_arm_realm_create_realm_descriptor(struct kvm *kvm) { struct kvm_enable_cap rme_create_rd = { @@ -9,6 +32,7 @@ void kvm_arm_realm_create_realm_descriptor(struct kvm *kvm) .args[0] = KVM_CAP_ARM_RME_CREATE_RD, }; + realm_configure_parameters(kvm); if (ioctl(kvm->vm_fd, KVM_ENABLE_CAP, &rme_create_rd) < 0) die_perror("KVM_CAP_RME(KVM_CAP_ARM_RME_CREATE_RD)"); }