From patchwork Fri Aug 13 16:59:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tom Lendacky X-Patchwork-Id: 12435959 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E62EDC432BE for ; Fri, 13 Aug 2021 17:00:35 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3A176610FD for ; Fri, 13 Aug 2021 17:00:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 3A176610FD Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=amd.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A72ED6E898; Fri, 13 Aug 2021 17:00:34 +0000 (UTC) Received: from NAM02-BN1-obe.outbound.protection.outlook.com (mail-bn1nam07on2071.outbound.protection.outlook.com [40.107.212.71]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8AB6D6E898; Fri, 13 Aug 2021 17:00:33 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=fnVVKSDUTq9Zx77/B3hb0bqVk2jOME4n7dEZ319TRm3LtI2ytMtWHd9Zsw2XmIFILOXeCT3p1Ei+KdXvoWITGlw0eHHnHLtYShsjr15BelK7Na/kwE1ExLCgNnDMDGsmgrc+GZKwKkrpo3SoFev5z/0PaTkRMA+v8Q2qI8dD8JOhe34+L0JcYlc7lvgyJmq9vkCOdQHMlN9WGAr4l8v+NHsmjtf8Yu2xL2B5F/R4fKEPIKQl666w1M+sAp9sCYWrnIFUp3jFrOUytQjRkAwDpWihHv5RoGJ7T6xwFlsAGX9dBZ2OUzlK+jSRoSNcajkxwdWSQOb9sefxEScEy9Uk4w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=TbJsayd3esujUkeClICzAo+GhfoeY9yFc2WWh+yJzf4=; b=Zxnb0WZCKFJT1NrB14Zm5ck+BqWSk7g4wXy3DrCt6ad066LfG2WsHL+id7hrrxVZYU4Qdje+xDuajxtFVdI3s3/3rQNBi2VClsz6IkcIiPMO5OOuFUkERhzW+0c886OkhgbxthfA0GPG2i5QdqV6epMiumaCBVYmGTdD4G2FL1MrAkjUW+QoXbLNrKuvwOjsjN7OFBrga0Z7zJlaGKRzRVWD+aKSGwZL2YyBx2epqlboqc8ZBI0HF27fZByQ2V9+jElhz5KjtI1cgWQ0M7kD/tC4i2H2llXWML9nTz8Fbfsg5Q/K/0ytsGMUKQlhO+3b0wcodklB4Xu2cOjcq+20Jg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=TbJsayd3esujUkeClICzAo+GhfoeY9yFc2WWh+yJzf4=; b=189gDan4187+wg8jIlCEJGrRoMwGGS2O8AdTcwVmm4pQfbdXWPpjPJqB/OyKGFc+xv+2OdqGqrcbBa+nxX370058XVCUDrseRh1WevrGgovBQ/Vdd4ocIUUTogb/U257WoI/9ISOMKDfAkjt727OrvpEfmQ8KipSxpa9un80zXk= Authentication-Results: vger.kernel.org; dkim=none (message not signed) header.d=none;vger.kernel.org; dmarc=none action=none header.from=amd.com; Received: from DM4PR12MB5229.namprd12.prod.outlook.com (2603:10b6:5:398::12) by DM4PR12MB5341.namprd12.prod.outlook.com (2603:10b6:5:39e::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4415.16; Fri, 13 Aug 2021 17:00:30 +0000 Received: from DM4PR12MB5229.namprd12.prod.outlook.com ([fe80::d560:d21:cd59:9418]) by DM4PR12MB5229.namprd12.prod.outlook.com ([fe80::d560:d21:cd59:9418%6]) with mapi id 15.20.4415.019; Fri, 13 Aug 2021 17:00:30 +0000 From: Tom Lendacky To: linux-kernel@vger.kernel.org, x86@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, iommu@lists.linux-foundation.org, kvm@vger.kernel.org, linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-graphics-maintainer@vmware.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org Cc: Borislav Petkov , Brijesh Singh , Joerg Roedel , Andi Kleen , Sathyanarayanan Kuppuswamy , Tianyu Lan , Thomas Gleixner , Ingo Molnar , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Will Deacon , Joerg Roedel Subject: [PATCH v2 05/12] x86/sme: Replace occurrences of sme_active() with prot_guest_has() Date: Fri, 13 Aug 2021 11:59:24 -0500 Message-Id: X-Mailer: git-send-email 2.32.0 In-Reply-To: References: X-ClientProxiedBy: SA0PR12CA0001.namprd12.prod.outlook.com (2603:10b6:806:6f::6) To DM4PR12MB5229.namprd12.prod.outlook.com (2603:10b6:5:398::12) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from tlendack-t1.amd.com (165.204.77.1) by SA0PR12CA0001.namprd12.prod.outlook.com (2603:10b6:806:6f::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4415.14 via Frontend Transport; Fri, 13 Aug 2021 17:00:28 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 751ea128-7a31-4c68-2727-08d95e7bdafe X-MS-TrafficTypeDiagnostic: DM4PR12MB5341: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:4303; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:DM4PR12MB5229.namprd12.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(39860400002)(136003)(366004)(346002)(376002)(396003)(86362001)(8676002)(2616005)(5660300002)(6666004)(54906003)(36756003)(38100700002)(7696005)(38350700002)(921005)(52116002)(8936002)(2906002)(478600001)(83380400001)(4326008)(186003)(6486002)(7416002)(26005)(956004)(66476007)(66556008)(316002)(66946007); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: mNV9XDi/gVWtpABqzkWClOu+ZDTMK5kgZULs8ZTjjTQThevvFC8uK0smaX8I1j1KgcAJZyZPeeHu7FviHoGlJdxlDUzQ4VRX55+3xgMYlv+DeYraO92wNQRu2N/Q22ZTQBpWZaq7eTi+zAR/Tc7LzFvlSlFOJjl6/PXDUbOrBZ52peT1/XOnDGgK5O8PVlYK0U5MOj5sS4pyVArmwlPN56E7ODxus1WI1SmPg59XgmN+AADrKoIiHgZjVOVTpXwD9LSIC1dJiP8HGzxBAsa5SMeQlpP2dyrWGKgCEkVWj1etOWD3BZvrdaesIAUFOteWlPzdENRkI9VGAOtYjh3cn3FMYjC9MISYwyiDnrom+SGt/E7YzbRPphAWzoXZzUfmnghyANn3OF/hHsLM0pRLpRpdciyyr90BSeYepfnrJfwtEVkhXfCXJezSyD0JgzVp9I02Ag9KrKU4GSYQnbX/uhcil5+yEaMjODdZjGmzw2XCGVfeL61t7wf8Da66NiutdJadlv1SchcnjtOPiqEdWAJI+l1xN0awyicwHPsE361v30qYNpgmDMBHVqi8yKiXdQmS9pE2C37LrRIlFxmRWzX42LEZA9TXN1tBk4o4hjL54y0XNMoLbO5wOB1fG5Ob/WebFMevmeWDin1KwcXj5LChWEO14sB5MEkEPgF6agJdsUfi4+6+wuDcMhKG17+B9BYDL06mK5I6dQvn4S9387mQzWHXcXRlhwDyk0Sz+KVhzPt8TnXwHdjGhOFzRfjs4tguYnlv6ROjksN+L5u5/0uMnt4RafG6s/Yh2jyk090YyoBln4Osr4AbE/S1lbI7DEP0OCy05dnVBrw/otYhTMLQwnY92Op4JEFzKVrUgzPfxTwjdYNFt9HakFFdllsb8WCUSDsuz0BnSgvmcXIiINPegImRU0CdyjmN+84NqFvP6YG+P5Qgv8LAeqABodsMZnZ5pi67ieuIwQIz+asO/KPZucy29Jw0Qrb7WMCvSEGDYwuDxl654oI0vKS7sUMBYz0YKKB/udFndZxF9RtadFWVKbKNKO9mdp1k3sz0Kg7yGPKa5miEYNAfpv1fFrdupXIzkJBs6OxFzxJZevvCHIj953kBZUTANSIzwjM65srfJffU6Lch4eGwt6sZFzi75N1xfPlcQEAzTzPX7E7PJycwR5s5Gqm7EhcrIEx+ynCQH4Ene9UtHCFA16tjSYxGbbOg1Q2oYIV5rUJg1MsqZfvH+sYf4BFePZNdq3NfBpur7ILfF+hHIeyIfwjZshtBMKXm52bcVDAtWBdGMmw2DligERgQDnhxeiZzz+SoO+JJHGoMjHit4oRL7QhM0SfA X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 751ea128-7a31-4c68-2727-08d95e7bdafe X-MS-Exchange-CrossTenant-AuthSource: DM4PR12MB5229.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Aug 2021 17:00:29.8878 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 8Y0dqX8pqw3xJvEIJ8/VV1WUFy1n95nQYwfRjEBNbAURQk1xhrYE+Zkbc01KzYj3T6v5qk9DEkhFq+N4tShH0A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB5341 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Replace occurrences of sme_active() with the more generic prot_guest_has() using PATTR_HOST_MEM_ENCRYPT, except for in arch/x86/mm/mem_encrypt*.c where PATTR_SME will be used. If future support is added for other memory encryption technologies, the use of PATTR_HOST_MEM_ENCRYPT can be updated, as required, to use PATTR_SME. Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: Andy Lutomirski Cc: Peter Zijlstra Cc: Joerg Roedel Cc: Will Deacon Reviewed-by: Joerg Roedel Signed-off-by: Tom Lendacky --- arch/x86/include/asm/kexec.h | 2 +- arch/x86/include/asm/mem_encrypt.h | 2 -- arch/x86/kernel/machine_kexec_64.c | 3 ++- arch/x86/kernel/pci-swiotlb.c | 9 ++++----- arch/x86/kernel/relocate_kernel_64.S | 2 +- arch/x86/mm/ioremap.c | 6 +++--- arch/x86/mm/mem_encrypt.c | 10 +++++----- arch/x86/mm/mem_encrypt_identity.c | 3 ++- arch/x86/realmode/init.c | 5 +++-- drivers/iommu/amd/init.c | 7 ++++--- 10 files changed, 25 insertions(+), 24 deletions(-) diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h index 0a6e34b07017..11b7c06e2828 100644 --- a/arch/x86/include/asm/kexec.h +++ b/arch/x86/include/asm/kexec.h @@ -129,7 +129,7 @@ relocate_kernel(unsigned long indirection_page, unsigned long page_list, unsigned long start_address, unsigned int preserve_context, - unsigned int sme_active); + unsigned int host_mem_enc_active); #endif #define ARCH_HAS_KIMAGE_ARCH diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h index a46d47662772..956338406cec 100644 --- a/arch/x86/include/asm/mem_encrypt.h +++ b/arch/x86/include/asm/mem_encrypt.h @@ -50,7 +50,6 @@ void __init mem_encrypt_free_decrypted_mem(void); void __init mem_encrypt_init(void); void __init sev_es_init_vc_handling(void); -bool sme_active(void); bool sev_active(void); bool sev_es_active(void); bool amd_prot_guest_has(unsigned int attr); @@ -76,7 +75,6 @@ static inline void __init sme_encrypt_kernel(struct boot_params *bp) { } static inline void __init sme_enable(struct boot_params *bp) { } static inline void sev_es_init_vc_handling(void) { } -static inline bool sme_active(void) { return false; } static inline bool sev_active(void) { return false; } static inline bool sev_es_active(void) { return false; } static inline bool amd_prot_guest_has(unsigned int attr) { return false; } diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c index 131f30fdcfbd..8e7b517ad738 100644 --- a/arch/x86/kernel/machine_kexec_64.c +++ b/arch/x86/kernel/machine_kexec_64.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -358,7 +359,7 @@ void machine_kexec(struct kimage *image) (unsigned long)page_list, image->start, image->preserve_context, - sme_active()); + prot_guest_has(PATTR_HOST_MEM_ENCRYPT)); #ifdef CONFIG_KEXEC_JUMP if (image->preserve_context) diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c index c2cfa5e7c152..bd9a9cfbc9a2 100644 --- a/arch/x86/kernel/pci-swiotlb.c +++ b/arch/x86/kernel/pci-swiotlb.c @@ -6,7 +6,7 @@ #include #include #include -#include +#include #include #include @@ -45,11 +45,10 @@ int __init pci_swiotlb_detect_4gb(void) swiotlb = 1; /* - * If SME is active then swiotlb will be set to 1 so that bounce - * buffers are allocated and used for devices that do not support - * the addressing range required for the encryption mask. + * Set swiotlb to 1 so that bounce buffers are allocated and used for + * devices that can't support DMA to encrypted memory. */ - if (sme_active()) + if (prot_guest_has(PATTR_HOST_MEM_ENCRYPT)) swiotlb = 1; return swiotlb; diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S index c53271aebb64..c8fe74a28143 100644 --- a/arch/x86/kernel/relocate_kernel_64.S +++ b/arch/x86/kernel/relocate_kernel_64.S @@ -47,7 +47,7 @@ SYM_CODE_START_NOALIGN(relocate_kernel) * %rsi page_list * %rdx start address * %rcx preserve_context - * %r8 sme_active + * %r8 host_mem_enc_active */ /* Save the CPU context, used for jumping back */ diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index ccff76cedd8f..583afd54c7e1 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -14,7 +14,7 @@ #include #include #include -#include +#include #include #include @@ -703,7 +703,7 @@ bool arch_memremap_can_ram_remap(resource_size_t phys_addr, unsigned long size, if (flags & MEMREMAP_DEC) return false; - if (sme_active()) { + if (prot_guest_has(PATTR_HOST_MEM_ENCRYPT)) { if (memremap_is_setup_data(phys_addr, size) || memremap_is_efi_data(phys_addr, size)) return false; @@ -729,7 +729,7 @@ pgprot_t __init early_memremap_pgprot_adjust(resource_size_t phys_addr, encrypted_prot = true; - if (sme_active()) { + if (prot_guest_has(PATTR_HOST_MEM_ENCRYPT)) { if (early_memremap_is_setup_data(phys_addr, size) || memremap_is_efi_data(phys_addr, size)) encrypted_prot = false; diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c index edc67ddf065d..5635ca9a1fbe 100644 --- a/arch/x86/mm/mem_encrypt.c +++ b/arch/x86/mm/mem_encrypt.c @@ -144,7 +144,7 @@ void __init sme_unmap_bootdata(char *real_mode_data) struct boot_params *boot_data; unsigned long cmdline_paddr; - if (!sme_active()) + if (!amd_prot_guest_has(PATTR_SME)) return; /* Get the command line address before unmapping the real_mode_data */ @@ -164,7 +164,7 @@ void __init sme_map_bootdata(char *real_mode_data) struct boot_params *boot_data; unsigned long cmdline_paddr; - if (!sme_active()) + if (!amd_prot_guest_has(PATTR_SME)) return; __sme_early_map_unmap_mem(real_mode_data, sizeof(boot_params), true); @@ -378,7 +378,7 @@ bool sev_active(void) return sev_status & MSR_AMD64_SEV_ENABLED; } -bool sme_active(void) +static bool sme_active(void) { return sme_me_mask && !sev_active(); } @@ -428,7 +428,7 @@ bool force_dma_unencrypted(struct device *dev) * device does not support DMA to addresses that include the * encryption mask. */ - if (sme_active()) { + if (amd_prot_guest_has(PATTR_SME)) { u64 dma_enc_mask = DMA_BIT_MASK(__ffs64(sme_me_mask)); u64 dma_dev_mask = min_not_zero(dev->coherent_dma_mask, dev->bus_dma_limit); @@ -469,7 +469,7 @@ static void print_mem_encrypt_feature_info(void) pr_info("AMD Memory Encryption Features active:"); /* Secure Memory Encryption */ - if (sme_active()) { + if (amd_prot_guest_has(PATTR_SME)) { /* * SME is mutually exclusive with any of the SEV * features below. diff --git a/arch/x86/mm/mem_encrypt_identity.c b/arch/x86/mm/mem_encrypt_identity.c index 470b20208430..088c8ab7dcc1 100644 --- a/arch/x86/mm/mem_encrypt_identity.c +++ b/arch/x86/mm/mem_encrypt_identity.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -287,7 +288,7 @@ void __init sme_encrypt_kernel(struct boot_params *bp) unsigned long pgtable_area_len; unsigned long decrypted_base; - if (!sme_active()) + if (!prot_guest_has(PATTR_SME)) return; /* diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c index 6534c92d0f83..2109ae569c67 100644 --- a/arch/x86/realmode/init.c +++ b/arch/x86/realmode/init.c @@ -3,6 +3,7 @@ #include #include #include +#include #include #include @@ -44,7 +45,7 @@ void __init reserve_real_mode(void) static void sme_sev_setup_real_mode(struct trampoline_header *th) { #ifdef CONFIG_AMD_MEM_ENCRYPT - if (sme_active()) + if (prot_guest_has(PATTR_HOST_MEM_ENCRYPT)) th->flags |= TH_FLAGS_SME_ACTIVE; if (sev_es_active()) { @@ -81,7 +82,7 @@ static void __init setup_real_mode(void) * decrypted memory in order to bring up other processors * successfully. This is not needed for SEV. */ - if (sme_active()) + if (prot_guest_has(PATTR_HOST_MEM_ENCRYPT)) set_memory_decrypted((unsigned long)base, size >> PAGE_SHIFT); memcpy(base, real_mode_blob, size); diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c index 46280e6e1535..05e770e3e631 100644 --- a/drivers/iommu/amd/init.c +++ b/drivers/iommu/amd/init.c @@ -20,7 +20,7 @@ #include #include #include -#include +#include #include #include #include @@ -965,7 +965,7 @@ static bool copy_device_table(void) pr_err("The address of old device table is above 4G, not trustworthy!\n"); return false; } - old_devtb = (sme_active() && is_kdump_kernel()) + old_devtb = (prot_guest_has(PATTR_HOST_MEM_ENCRYPT) && is_kdump_kernel()) ? (__force void *)ioremap_encrypted(old_devtb_phys, dev_table_size) : memremap(old_devtb_phys, dev_table_size, MEMREMAP_WB); @@ -3022,7 +3022,8 @@ static int __init amd_iommu_init(void) static bool amd_iommu_sme_check(void) { - if (!sme_active() || (boot_cpu_data.x86 != 0x17)) + if (!prot_guest_has(PATTR_HOST_MEM_ENCRYPT) || + (boot_cpu_data.x86 != 0x17)) return true; /* For Fam17h, a specific level of support is required */