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Tue, 27 Jul 2021 22:27:09 +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 , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras Subject: [PATCH 03/11] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() Date: Tue, 27 Jul 2021 17:26:06 -0500 Message-Id: <19f7eefdc98e091fbfae9db0db575422f18f0543.1627424774.git.thomas.lendacky@amd.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: References: Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SA9PR13CA0001.namprd13.prod.outlook.com (2603:10b6:806:21::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 SA9PR13CA0001.namprd13.prod.outlook.com (2603:10b6:806:21::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4373.7 via Frontend Transport; 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This will be used to replace the powerpc mem_encrypt_active() implementation, so the implementation will initially only support the PATTR_MEM_ENCRYPT attribute. Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Tom Lendacky --- arch/powerpc/include/asm/protected_guest.h | 30 ++++++++++++++++++++++ arch/powerpc/platforms/pseries/Kconfig | 1 + 2 files changed, 31 insertions(+) create mode 100644 arch/powerpc/include/asm/protected_guest.h diff --git a/arch/powerpc/include/asm/protected_guest.h b/arch/powerpc/include/asm/protected_guest.h new file mode 100644 index 000000000000..ce55c2c7e534 --- /dev/null +++ b/arch/powerpc/include/asm/protected_guest.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Protected Guest (and Host) Capability checks + * + * Copyright (C) 2021 Advanced Micro Devices, Inc. + * + * Author: Tom Lendacky + */ + +#ifndef _POWERPC_PROTECTED_GUEST_H +#define _POWERPC_PROTECTED_GUEST_H + +#include + +#ifndef __ASSEMBLY__ + +static inline bool prot_guest_has(unsigned int attr) +{ + switch (attr) { + case PATTR_MEM_ENCRYPT: + return is_secure_guest(); + + default: + return false; + } +} + +#endif /* __ASSEMBLY__ */ + +#endif /* _POWERPC_PROTECTED_GUEST_H */ diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 5e037df2a3a1..8ce5417d6feb 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -159,6 +159,7 @@ config PPC_SVM select SWIOTLB select ARCH_HAS_MEM_ENCRYPT select ARCH_HAS_FORCE_DMA_UNENCRYPTED + select ARCH_HAS_PROTECTED_GUEST help There are certain POWER platforms which support secure guests using the Protected Execution Facility, with the help of an Ultravisor -- 2.32.0 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 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=unavailable 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 6FEC9C4338F for ; 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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 DM4PR12MB5357.namprd12.prod.outlook.com (2603:10b6:5:39b::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4373.18; Tue, 27 Jul 2021 22:27:09 +0000 Received: from DM4PR12MB5229.namprd12.prod.outlook.com ([fe80::73:2581:970b:3208]) by DM4PR12MB5229.namprd12.prod.outlook.com ([fe80::73:2581:970b:3208%3]) with mapi id 15.20.4352.031; Tue, 27 Jul 2021 22:27:09 +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 Subject: [PATCH 03/11] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() Date: Tue, 27 Jul 2021 17:26:06 -0500 Message-Id: <19f7eefdc98e091fbfae9db0db575422f18f0543.1627424774.git.thomas.lendacky@amd.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: References: Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SA9PR13CA0001.namprd13.prod.outlook.com (2603:10b6:806:21::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 SA9PR13CA0001.namprd13.prod.outlook.com (2603:10b6:806:21::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4373.7 via Frontend Transport; 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This will be used to replace the powerpc mem_encrypt_active() implementation, so the implementation will initially only support the PATTR_MEM_ENCRYPT attribute. Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Tom Lendacky --- arch/powerpc/include/asm/protected_guest.h | 30 ++++++++++++++++++++++ arch/powerpc/platforms/pseries/Kconfig | 1 + 2 files changed, 31 insertions(+) create mode 100644 arch/powerpc/include/asm/protected_guest.h diff --git a/arch/powerpc/include/asm/protected_guest.h b/arch/powerpc/include/asm/protected_guest.h new file mode 100644 index 000000000000..ce55c2c7e534 --- /dev/null +++ b/arch/powerpc/include/asm/protected_guest.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Protected Guest (and Host) Capability checks + * + * Copyright (C) 2021 Advanced Micro Devices, Inc. + * + * Author: Tom Lendacky + */ + +#ifndef _POWERPC_PROTECTED_GUEST_H +#define _POWERPC_PROTECTED_GUEST_H + +#include + +#ifndef __ASSEMBLY__ + +static inline bool prot_guest_has(unsigned int attr) +{ + switch (attr) { + case PATTR_MEM_ENCRYPT: + return is_secure_guest(); + + default: + return false; + } +} + +#endif /* __ASSEMBLY__ */ + +#endif /* _POWERPC_PROTECTED_GUEST_H */ diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 5e037df2a3a1..8ce5417d6feb 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -159,6 +159,7 @@ config PPC_SVM select SWIOTLB select ARCH_HAS_MEM_ENCRYPT select ARCH_HAS_FORCE_DMA_UNENCRYPTED + select ARCH_HAS_PROTECTED_GUEST help There are certain POWER platforms which support secure guests using the Protected Execution Facility, with the help of an Ultravisor -- 2.32.0 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 X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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=unavailable 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 8ABC5C4320E for ; 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Tue, 27 Jul 2021 22:27:09 +0000 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 Subject: [PATCH 03/11] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() Date: Tue, 27 Jul 2021 17:26:06 -0500 Message-Id: <19f7eefdc98e091fbfae9db0db575422f18f0543.1627424774.git.thomas.lendacky@amd.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: References: X-ClientProxiedBy: SA9PR13CA0001.namprd13.prod.outlook.com (2603:10b6:806:21::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 SA9PR13CA0001.namprd13.prod.outlook.com (2603:10b6:806:21::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4373.7 via Frontend Transport; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Introduce a powerpc version of the prot_guest_has() function. This will be used to replace the powerpc mem_encrypt_active() implementation, so the implementation will initially only support the PATTR_MEM_ENCRYPT attribute. Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Tom Lendacky --- arch/powerpc/include/asm/protected_guest.h | 30 ++++++++++++++++++++++ arch/powerpc/platforms/pseries/Kconfig | 1 + 2 files changed, 31 insertions(+) create mode 100644 arch/powerpc/include/asm/protected_guest.h diff --git a/arch/powerpc/include/asm/protected_guest.h b/arch/powerpc/include/asm/protected_guest.h new file mode 100644 index 000000000000..ce55c2c7e534 --- /dev/null +++ b/arch/powerpc/include/asm/protected_guest.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Protected Guest (and Host) Capability checks + * + * Copyright (C) 2021 Advanced Micro Devices, Inc. + * + * Author: Tom Lendacky + */ + +#ifndef _POWERPC_PROTECTED_GUEST_H +#define _POWERPC_PROTECTED_GUEST_H + +#include + +#ifndef __ASSEMBLY__ + +static inline bool prot_guest_has(unsigned int attr) +{ + switch (attr) { + case PATTR_MEM_ENCRYPT: + return is_secure_guest(); + + default: + return false; + } +} + +#endif /* __ASSEMBLY__ */ + +#endif /* _POWERPC_PROTECTED_GUEST_H */ diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 5e037df2a3a1..8ce5417d6feb 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -159,6 +159,7 @@ config PPC_SVM select SWIOTLB select ARCH_HAS_MEM_ENCRYPT select ARCH_HAS_FORCE_DMA_UNENCRYPTED + select ARCH_HAS_PROTECTED_GUEST help There are certain POWER platforms which support secure guests using the Protected Execution Facility, with the help of an Ultravisor -- 2.32.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu 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 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 A2338C43216 for ; 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Tue, 27 Jul 2021 22:27:09 +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 Subject: [PATCH 03/11] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() Date: Tue, 27 Jul 2021 17:26:06 -0500 Message-Id: <19f7eefdc98e091fbfae9db0db575422f18f0543.1627424774.git.thomas.lendacky@amd.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: References: Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SA9PR13CA0001.namprd13.prod.outlook.com (2603:10b6:806:21::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 SA9PR13CA0001.namprd13.prod.outlook.com (2603:10b6:806:21::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4373.7 via Frontend Transport; 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This will be used to replace the powerpc mem_encrypt_active() implementation, so the implementation will initially only support the PATTR_MEM_ENCRYPT attribute. Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Tom Lendacky --- arch/powerpc/include/asm/protected_guest.h | 30 ++++++++++++++++++++++ arch/powerpc/platforms/pseries/Kconfig | 1 + 2 files changed, 31 insertions(+) create mode 100644 arch/powerpc/include/asm/protected_guest.h diff --git a/arch/powerpc/include/asm/protected_guest.h b/arch/powerpc/include/asm/protected_guest.h new file mode 100644 index 000000000000..ce55c2c7e534 --- /dev/null +++ b/arch/powerpc/include/asm/protected_guest.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Protected Guest (and Host) Capability checks + * + * Copyright (C) 2021 Advanced Micro Devices, Inc. + * + * Author: Tom Lendacky + */ + +#ifndef _POWERPC_PROTECTED_GUEST_H +#define _POWERPC_PROTECTED_GUEST_H + +#include + +#ifndef __ASSEMBLY__ + +static inline bool prot_guest_has(unsigned int attr) +{ + switch (attr) { + case PATTR_MEM_ENCRYPT: + return is_secure_guest(); + + default: + return false; + } +} + +#endif /* __ASSEMBLY__ */ + +#endif /* _POWERPC_PROTECTED_GUEST_H */ diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 5e037df2a3a1..8ce5417d6feb 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -159,6 +159,7 @@ config PPC_SVM select SWIOTLB select ARCH_HAS_MEM_ENCRYPT select ARCH_HAS_FORCE_DMA_UNENCRYPTED + select ARCH_HAS_PROTECTED_GUEST help There are certain POWER platforms which support secure guests using the Protected Execution Facility, with the help of an Ultravisor -- 2.32.0 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 X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 927BFC4338F for ; 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Tue, 27 Jul 2021 22:27:09 +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 Subject: [PATCH 03/11] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() Date: Tue, 27 Jul 2021 17:26:06 -0500 Message-Id: <19f7eefdc98e091fbfae9db0db575422f18f0543.1627424774.git.thomas.lendacky@amd.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: References: X-ClientProxiedBy: SA9PR13CA0001.namprd13.prod.outlook.com (2603:10b6:806:21::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 SA9PR13CA0001.namprd13.prod.outlook.com (2603:10b6:806:21::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4373.7 via Frontend Transport; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" Introduce a powerpc version of the prot_guest_has() function. This will be used to replace the powerpc mem_encrypt_active() implementation, so the implementation will initially only support the PATTR_MEM_ENCRYPT attribute. Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Tom Lendacky --- arch/powerpc/include/asm/protected_guest.h | 30 ++++++++++++++++++++++ arch/powerpc/platforms/pseries/Kconfig | 1 + 2 files changed, 31 insertions(+) create mode 100644 arch/powerpc/include/asm/protected_guest.h diff --git a/arch/powerpc/include/asm/protected_guest.h b/arch/powerpc/include/asm/protected_guest.h new file mode 100644 index 000000000000..ce55c2c7e534 --- /dev/null +++ b/arch/powerpc/include/asm/protected_guest.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Protected Guest (and Host) Capability checks + * + * Copyright (C) 2021 Advanced Micro Devices, Inc. + * + * Author: Tom Lendacky + */ + +#ifndef _POWERPC_PROTECTED_GUEST_H +#define _POWERPC_PROTECTED_GUEST_H + +#include + +#ifndef __ASSEMBLY__ + +static inline bool prot_guest_has(unsigned int attr) +{ + switch (attr) { + case PATTR_MEM_ENCRYPT: + return is_secure_guest(); + + default: + return false; + } +} + +#endif /* __ASSEMBLY__ */ + +#endif /* _POWERPC_PROTECTED_GUEST_H */ diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 5e037df2a3a1..8ce5417d6feb 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -159,6 +159,7 @@ config PPC_SVM select SWIOTLB select ARCH_HAS_MEM_ENCRYPT select ARCH_HAS_FORCE_DMA_UNENCRYPTED + select ARCH_HAS_PROTECTED_GUEST help There are certain POWER platforms which support secure guests using the Protected Execution Facility, with the help of an Ultravisor -- 2.32.0 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-dm6nam11on2056.outbound.protection.outlook.com ([40.107.223.56] helo=NAM11-DM6-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m8VXb-00GX4s-RW for kexec@lists.infradead.org; Tue, 27 Jul 2021 22:27:13 +0000 From: Tom Lendacky Subject: [PATCH 03/11] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() Date: Tue, 27 Jul 2021 17:26:06 -0500 Message-Id: <19f7eefdc98e091fbfae9db0db575422f18f0543.1627424774.git.thomas.lendacky@amd.com> In-Reply-To: References: MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org 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 , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras Introduce a powerpc version of the prot_guest_has() function. This will be used to replace the powerpc mem_encrypt_active() implementation, so the implementation will initially only support the PATTR_MEM_ENCRYPT attribute. Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Tom Lendacky --- arch/powerpc/include/asm/protected_guest.h | 30 ++++++++++++++++++++++ arch/powerpc/platforms/pseries/Kconfig | 1 + 2 files changed, 31 insertions(+) create mode 100644 arch/powerpc/include/asm/protected_guest.h diff --git a/arch/powerpc/include/asm/protected_guest.h b/arch/powerpc/include/asm/protected_guest.h new file mode 100644 index 000000000000..ce55c2c7e534 --- /dev/null +++ b/arch/powerpc/include/asm/protected_guest.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Protected Guest (and Host) Capability checks + * + * Copyright (C) 2021 Advanced Micro Devices, Inc. + * + * Author: Tom Lendacky + */ + +#ifndef _POWERPC_PROTECTED_GUEST_H +#define _POWERPC_PROTECTED_GUEST_H + +#include + +#ifndef __ASSEMBLY__ + +static inline bool prot_guest_has(unsigned int attr) +{ + switch (attr) { + case PATTR_MEM_ENCRYPT: + return is_secure_guest(); + + default: + return false; + } +} + +#endif /* __ASSEMBLY__ */ + +#endif /* _POWERPC_PROTECTED_GUEST_H */ diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 5e037df2a3a1..8ce5417d6feb 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -159,6 +159,7 @@ config PPC_SVM select SWIOTLB select ARCH_HAS_MEM_ENCRYPT select ARCH_HAS_FORCE_DMA_UNENCRYPTED + select ARCH_HAS_PROTECTED_GUEST help There are certain POWER platforms which support secure guests using the Protected Execution Facility, with the help of an Ultravisor -- 2.32.0 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec