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 C7C4FC54EAA for ; Fri, 27 Jan 2023 12:05:00 +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: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=p7h0Bg58zIsV/CLZMeOYalNIsln0ijLsd9MhafjFrlM=; b=R5f1D40cBl2uwt 0/aVxsEnmeuQ/UW+SwvxR9MPGpAI2fTfWePv52+VMqOMVo6V6FZgHgmmKU4OkSe2XElNlIJ/tnwPk GysjedUfaFGHZP9nz5WUuErKUO2QhpfwIphNfeWfk3O2d/znf24fvsZVdhcF9eFWghA5HTfy10gfF abPJywORnqtnNWLbKU9YNGxC5t/YsHYkcRP69ZkdojTWZNYfoSJtb+dNquIfAIje2/6I9ZoBEBkGG rzfY5ZXR8hs83zK+ONG+C4G+cUH6V+lg1CvDdcLRgayRj0AXm1rkEJ/Bw/80ofjWC3vx7jwMru9T6 S9Eo8/b3llUXXUgvvI8g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLNSS-00ENik-50; Fri, 27 Jan 2023 12:03:52 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLN5e-00ECrz-1o for linux-arm-kernel@lists.infradead.org; Fri, 27 Jan 2023 11:40:19 +0000 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 62808169E; Fri, 27 Jan 2023 03:40:59 -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 D96673F64C; Fri, 27 Jan 2023 03:40:14 -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 10/31] arm64: Create a realm virtual machine Date: Fri, 27 Jan 2023 11:39:11 +0000 Message-Id: <20230127113932.166089-11-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230127_034018_202854_82145E14 X-CRM114-Status: GOOD ( 12.94 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Christoffer Dall Set the machine type to realm when creating a VM via the KVM_CREATE_VM ioctl. Signed-off-by: Christoffer Dall [ Alex E: Reworked patch, split the command line option into a different patch ] Signed-off-by: Alexandru Elisei Signed-off-by: Suzuki K Poulose --- arm/aarch64/kvm.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/arm/aarch64/kvm.c b/arm/aarch64/kvm.c index 25be2f2d..5db4c572 100644 --- a/arm/aarch64/kvm.c +++ b/arm/aarch64/kvm.c @@ -131,12 +131,15 @@ int kvm__arch_get_ipa_limit(struct kvm *kvm) int kvm__get_vm_type(struct kvm *kvm) { unsigned int ipa_bits, max_ipa_bits; - unsigned long max_ipa; + unsigned long max_ipa, vm_type; - /* If we're running on an old kernel, use 0 as the VM type */ + vm_type = kvm->cfg.arch.is_realm ? \ + KVM_VM_TYPE_ARM_REALM : KVM_VM_TYPE_ARM_NORMAL; + + /* If we're running on an old kernel, use 0 as the IPA bits */ max_ipa_bits = kvm__arch_get_ipa_limit(kvm); if (!max_ipa_bits) - return 0; + return vm_type; /* Otherwise, compute the minimal required IPA size */ max_ipa = kvm->cfg.ram_addr + kvm->cfg.ram_size - 1; @@ -147,7 +150,8 @@ int kvm__get_vm_type(struct kvm *kvm) if (ipa_bits > max_ipa_bits) die("Memory too large for this system (needs %d bits, %d available)", ipa_bits, max_ipa_bits); - return KVM_VM_TYPE_ARM_IPA_SIZE(ipa_bits); + vm_type |= KVM_VM_TYPE_ARM_IPA_SIZE(ipa_bits); + return vm_type; } void kvm__arch_enable_mte(struct kvm *kvm) -- 2.34.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel