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From: Borislav Petkov <bp@alien8.de>
To: Tom Lendacky <thomas.lendacky@amd.com>
Cc: 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,
	Brijesh Singh <brijesh.singh@amd.com>,
	Joerg Roedel <joro@8bytes.org>, Andi Kleen <ak@linux.intel.com>,
	Sathyanarayanan Kuppuswamy 
	<sathyanarayanan.kuppuswamy@linux.intel.com>,
	Tianyu Lan <Tianyu.Lan@microsoft.com>,
	Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH v3 2/8] mm: Introduce a function to check for confidential computing features
Date: Fri, 10 Sep 2021 17:02:10 +0200	[thread overview]
Message-ID: <YTtzcoFdi7Ond8Kt@zn.tnic> (raw)
In-Reply-To: <0a7618d54e7e954ee56c22ad1b94af2ffe69543a.1631141919.git.thomas.lendacky@amd.com>

On Wed, Sep 08, 2021 at 05:58:33PM -0500, Tom Lendacky wrote:
> In prep for other confidential computing technologies, introduce a generic

preparation

> helper function, cc_platform_has(), that can be used to check for specific
> active confidential computing attributes, like memory encryption. This is
> intended to eliminate having to add multiple technology-specific checks to
> the code (e.g. if (sev_active() || tdx_active())).

...

> diff --git a/include/linux/cc_platform.h b/include/linux/cc_platform.h
> new file mode 100644
> index 000000000000..253f3ea66cd8
> --- /dev/null
> +++ b/include/linux/cc_platform.h
> @@ -0,0 +1,88 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Confidential Computing Platform Capability checks
> + *
> + * Copyright (C) 2021 Advanced Micro Devices, Inc.
> + *
> + * Author: Tom Lendacky <thomas.lendacky@amd.com>
> + */
> +
> +#ifndef _CC_PLATFORM_H

	_LINUX_CC_PLATFORM_H

> +#define _CC_PLATFORM_H

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: Tom Lendacky <thomas.lendacky@amd.com>
Cc: linux-s390@vger.kernel.org, linux-efi@vger.kernel.org,
	Brijesh Singh <brijesh.singh@amd.com>,
	kvm@vger.kernel.org, x86@kernel.org, kexec@lists.infradead.org,
	linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org,
	platform-driver-x86@vger.kernel.org,
	Christoph Hellwig <hch@infradead.org>,
	iommu@lists.linux-foundation.org, Andi Kleen <ak@linux.intel.com>,
	linux-graphics-maintainer@vmware.com,
	dri-devel@lists.freedesktop.org, linux-fsdevel@vger.kernel.org,
	Tianyu Lan <Tianyu.Lan@microsoft.com>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v3 2/8] mm: Introduce a function to check for confidential computing features
Date: Fri, 10 Sep 2021 17:02:10 +0200	[thread overview]
Message-ID: <YTtzcoFdi7Ond8Kt@zn.tnic> (raw)
In-Reply-To: <0a7618d54e7e954ee56c22ad1b94af2ffe69543a.1631141919.git.thomas.lendacky@amd.com>

On Wed, Sep 08, 2021 at 05:58:33PM -0500, Tom Lendacky wrote:
> In prep for other confidential computing technologies, introduce a generic

preparation

> helper function, cc_platform_has(), that can be used to check for specific
> active confidential computing attributes, like memory encryption. This is
> intended to eliminate having to add multiple technology-specific checks to
> the code (e.g. if (sev_active() || tdx_active())).

...

> diff --git a/include/linux/cc_platform.h b/include/linux/cc_platform.h
> new file mode 100644
> index 000000000000..253f3ea66cd8
> --- /dev/null
> +++ b/include/linux/cc_platform.h
> @@ -0,0 +1,88 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Confidential Computing Platform Capability checks
> + *
> + * Copyright (C) 2021 Advanced Micro Devices, Inc.
> + *
> + * Author: Tom Lendacky <thomas.lendacky@amd.com>
> + */
> +
> +#ifndef _CC_PLATFORM_H

	_LINUX_CC_PLATFORM_H

> +#define _CC_PLATFORM_H

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: Tom Lendacky <thomas.lendacky@amd.com>
Cc: linux-s390@vger.kernel.org,
	Sathyanarayanan Kuppuswamy
	<sathyanarayanan.kuppuswamy@linux.intel.com>,
	linux-efi@vger.kernel.org, Brijesh Singh <brijesh.singh@amd.com>,
	kvm@vger.kernel.org, Joerg Roedel <joro@8bytes.org>,
	x86@kernel.org, kexec@lists.infradead.org,
	linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org,
	platform-driver-x86@vger.kernel.org,
	Christoph Hellwig <hch@infradead.org>,
	iommu@lists.linux-foundation.org, Andi Kleen <ak@linux.intel.com>,
	linux-graphics-maintainer@vmware.com,
	dri-devel@lists.freedesktop.org, linux-fsdevel@vger.kernel.org,
	Tianyu Lan <Tianyu.Lan@microsoft.com>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v3 2/8] mm: Introduce a function to check for confidential computing features
Date: Fri, 10 Sep 2021 17:02:10 +0200	[thread overview]
Message-ID: <YTtzcoFdi7Ond8Kt@zn.tnic> (raw)
In-Reply-To: <0a7618d54e7e954ee56c22ad1b94af2ffe69543a.1631141919.git.thomas.lendacky@amd.com>

On Wed, Sep 08, 2021 at 05:58:33PM -0500, Tom Lendacky wrote:
> In prep for other confidential computing technologies, introduce a generic

preparation

> helper function, cc_platform_has(), that can be used to check for specific
> active confidential computing attributes, like memory encryption. This is
> intended to eliminate having to add multiple technology-specific checks to
> the code (e.g. if (sev_active() || tdx_active())).

...

> diff --git a/include/linux/cc_platform.h b/include/linux/cc_platform.h
> new file mode 100644
> index 000000000000..253f3ea66cd8
> --- /dev/null
> +++ b/include/linux/cc_platform.h
> @@ -0,0 +1,88 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Confidential Computing Platform Capability checks
> + *
> + * Copyright (C) 2021 Advanced Micro Devices, Inc.
> + *
> + * Author: Tom Lendacky <thomas.lendacky@amd.com>
> + */
> +
> +#ifndef _CC_PLATFORM_H

	_LINUX_CC_PLATFORM_H

> +#define _CC_PLATFORM_H

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: Tom Lendacky <thomas.lendacky@amd.com>
Cc: 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,
	Brijesh Singh <brijesh.singh@amd.com>,
	Joerg Roedel <joro@8bytes.org>, Andi Kleen <ak@linux.intel.com>,
	Sathyanarayanan Kuppuswamy
	<sathyanarayanan.kuppuswamy@linux.intel.com>,
	Tianyu Lan <Tianyu.Lan@microsoft.com>,
	Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH v3 2/8] mm: Introduce a function to check for confidential computing features
Date: Fri, 10 Sep 2021 17:02:10 +0200	[thread overview]
Message-ID: <YTtzcoFdi7Ond8Kt@zn.tnic> (raw)
In-Reply-To: <0a7618d54e7e954ee56c22ad1b94af2ffe69543a.1631141919.git.thomas.lendacky@amd.com>

On Wed, Sep 08, 2021 at 05:58:33PM -0500, Tom Lendacky wrote:
> In prep for other confidential computing technologies, introduce a generic

preparation

> helper function, cc_platform_has(), that can be used to check for specific
> active confidential computing attributes, like memory encryption. This is
> intended to eliminate having to add multiple technology-specific checks to
> the code (e.g. if (sev_active() || tdx_active())).

...

> diff --git a/include/linux/cc_platform.h b/include/linux/cc_platform.h
> new file mode 100644
> index 000000000000..253f3ea66cd8
> --- /dev/null
> +++ b/include/linux/cc_platform.h
> @@ -0,0 +1,88 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Confidential Computing Platform Capability checks
> + *
> + * Copyright (C) 2021 Advanced Micro Devices, Inc.
> + *
> + * Author: Tom Lendacky <thomas.lendacky@amd.com>
> + */
> +
> +#ifndef _CC_PLATFORM_H

	_LINUX_CC_PLATFORM_H

> +#define _CC_PLATFORM_H

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

  parent reply	other threads:[~2021-09-10 15:02 UTC|newest]

Thread overview: 233+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-08 22:58 [PATCH v3 0/8] Implement generic cc_platform_has() helper function Tom Lendacky
2021-09-08 22:58 ` Tom Lendacky
2021-09-08 22:58 ` Tom Lendacky
2021-09-08 22:58 ` Tom Lendacky
2021-09-08 22:58 ` Tom Lendacky via iommu
2021-09-08 22:58 ` [PATCH v3 1/8] x86/ioremap: Selectively build arch override encryption functions Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky via iommu
2021-09-08 22:58 ` [PATCH v3 2/8] mm: Introduce a function to check for confidential computing features Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky via iommu
2021-09-09  7:35   ` Christophe Leroy
2021-09-09  7:35     ` Christophe Leroy
2021-09-09  7:35     ` Christophe Leroy
2021-09-09  7:35     ` Christophe Leroy
2021-09-10 15:02   ` Borislav Petkov [this message]
2021-09-10 15:02     ` Borislav Petkov
2021-09-10 15:02     ` Borislav Petkov
2021-09-10 15:02     ` Borislav Petkov
2021-09-10 15:02     ` Borislav Petkov
2021-09-08 22:58 ` [PATCH v3 3/8] x86/sev: Add an x86 version of cc_platform_has() Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky via iommu
2021-09-11 10:10   ` Borislav Petkov
2021-09-11 10:10     ` Borislav Petkov
2021-09-11 10:10     ` Borislav Petkov
2021-09-11 10:10     ` Borislav Petkov
2021-09-11 10:10     ` Borislav Petkov
2021-09-08 22:58 ` [PATCH v3 4/8] powerpc/pseries/svm: Add a powerpc " Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky via iommu
2021-09-09  7:40   ` Christophe Leroy
2021-09-09  7:40     ` Christophe Leroy
2021-09-09  7:40     ` Christophe Leroy
2021-09-09  7:40     ` Christophe Leroy
2021-09-14 11:58   ` Borislav Petkov
2021-09-14 11:58     ` Borislav Petkov
2021-09-14 11:58     ` Borislav Petkov
2021-09-14 11:58     ` Borislav Petkov
2021-09-14 11:58     ` Borislav Petkov
2021-09-14 14:47     ` Christophe Leroy
2021-09-14 14:47       ` Christophe Leroy
2021-09-14 14:47       ` Christophe Leroy
2021-09-14 14:47       ` Christophe Leroy
2021-09-14 14:47       ` Christophe Leroy
2021-09-14 14:56       ` Borislav Petkov
2021-09-14 14:56         ` Borislav Petkov
2021-09-14 14:56         ` Borislav Petkov
2021-09-14 14:56         ` Borislav Petkov
2021-09-14 14:56         ` Borislav Petkov
2021-09-15  0:28     ` Michael Ellerman
2021-09-15  0:28       ` Michael Ellerman
2021-09-15  0:28       ` Michael Ellerman
2021-09-15  0:28       ` Michael Ellerman
2021-09-15  0:28       ` Michael Ellerman
2021-09-15 10:08       ` Borislav Petkov
2021-09-15 10:08         ` Borislav Petkov
2021-09-15 10:08         ` Borislav Petkov
2021-09-15 10:08         ` Borislav Petkov
2021-09-15 10:08         ` Borislav Petkov
2021-09-15 17:18         ` Christophe Leroy
2021-09-15 17:18           ` Christophe Leroy
2021-09-15 17:18           ` Christophe Leroy
2021-09-15 17:18           ` Christophe Leroy
2021-09-15 17:18           ` Christophe Leroy
2021-09-15 18:47           ` Borislav Petkov
2021-09-15 18:47             ` Borislav Petkov
2021-09-15 18:47             ` Borislav Petkov
2021-09-15 18:47             ` Borislav Petkov
2021-09-15 18:47             ` Borislav Petkov
2021-09-16  7:35           ` Christoph Hellwig
2021-09-16  7:35             ` Christoph Hellwig
2021-09-16  7:35             ` Christoph Hellwig
2021-09-16  7:35             ` Christoph Hellwig
2021-09-16  7:35             ` Christoph Hellwig
2021-09-16 11:51             ` Michael Ellerman
2021-09-16 11:51               ` Michael Ellerman
2021-09-16 11:51               ` Michael Ellerman
2021-09-16 11:51               ` Michael Ellerman
2021-09-16 11:51               ` Michael Ellerman
2021-09-08 22:58 ` [PATCH v3 5/8] x86/sme: Replace occurrences of sme_active() with cc_platform_has() Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky via iommu
2021-09-14 18:24   ` Borislav Petkov
2021-09-14 18:24     ` Borislav Petkov
2021-09-14 18:24     ` Borislav Petkov
2021-09-14 18:24     ` Borislav Petkov
2021-09-14 18:24     ` Borislav Petkov
2021-09-20 19:23   ` Kirill A. Shutemov
2021-09-20 19:23     ` Kirill A. Shutemov
2021-09-20 19:23     ` Kirill A. Shutemov
2021-09-20 19:23     ` Kirill A. Shutemov
2021-09-20 19:23     ` Kirill A. Shutemov
2021-09-21 17:04     ` Tom Lendacky
2021-09-21 17:04       ` Tom Lendacky
2021-09-21 17:04       ` Tom Lendacky
2021-09-21 17:04       ` Tom Lendacky
2021-09-21 17:04       ` Tom Lendacky via iommu
2021-09-21 17:47       ` Borislav Petkov
2021-09-21 17:47         ` Borislav Petkov
2021-09-21 17:47         ` Borislav Petkov
2021-09-21 17:47         ` Borislav Petkov
2021-09-21 17:47         ` Borislav Petkov
2021-09-21 21:20         ` Kirill A. Shutemov
2021-09-21 21:20           ` Kirill A. Shutemov
2021-09-21 21:20           ` Kirill A. Shutemov
2021-09-21 21:20           ` Kirill A. Shutemov
2021-09-21 21:20           ` Kirill A. Shutemov
2021-09-21 21:27           ` Borislav Petkov
2021-09-21 21:27             ` Borislav Petkov
2021-09-21 21:27             ` Borislav Petkov
2021-09-21 21:27             ` Borislav Petkov
2021-09-21 21:27             ` Borislav Petkov
2021-09-21 21:34             ` Kirill A. Shutemov
2021-09-21 21:34               ` Kirill A. Shutemov
2021-09-21 21:34               ` Kirill A. Shutemov
2021-09-21 21:34               ` Kirill A. Shutemov
2021-09-21 21:34               ` Kirill A. Shutemov
2021-09-21 21:43               ` Tom Lendacky
2021-09-21 21:43                 ` Tom Lendacky
2021-09-21 21:43                 ` Tom Lendacky
2021-09-21 21:43                 ` Tom Lendacky
2021-09-21 21:43                 ` Tom Lendacky via iommu
2021-09-21 21:58                 ` Kirill A. Shutemov
2021-09-21 21:58                   ` Kirill A. Shutemov
2021-09-21 21:58                   ` Kirill A. Shutemov
2021-09-21 21:58                   ` Kirill A. Shutemov
2021-09-21 21:58                   ` Kirill A. Shutemov
2021-09-22 13:40                   ` Tom Lendacky
2021-09-22 13:40                     ` Tom Lendacky
2021-09-22 13:40                     ` Tom Lendacky
2021-09-22 13:40                     ` Tom Lendacky
2021-09-22 13:40                     ` Tom Lendacky via iommu
2021-09-22 14:30                     ` Kirill A. Shutemov
2021-09-22 14:30                       ` Kirill A. Shutemov
2021-09-22 14:30                       ` Kirill A. Shutemov
2021-09-22 14:30                       ` Kirill A. Shutemov
2021-09-22 14:30                       ` Kirill A. Shutemov
2021-09-22 19:52                       ` Borislav Petkov
2021-09-22 19:52                         ` Borislav Petkov
2021-09-22 19:52                         ` Borislav Petkov
2021-09-22 19:52                         ` Borislav Petkov
2021-09-22 19:52                         ` Borislav Petkov
2021-09-22 21:05                         ` Kirill A. Shutemov
2021-09-22 21:05                           ` Kirill A. Shutemov
2021-09-22 21:05                           ` Kirill A. Shutemov
2021-09-22 21:05                           ` Kirill A. Shutemov
2021-09-22 21:05                           ` Kirill A. Shutemov
2021-09-23 18:21                           ` Borislav Petkov
2021-09-23 18:21                             ` Borislav Petkov
2021-09-23 18:21                             ` Borislav Petkov
2021-09-23 18:21                             ` Borislav Petkov
2021-09-23 18:21                             ` Borislav Petkov
2021-09-24  9:41                             ` Kirill A. Shutemov
2021-09-24  9:41                               ` Kirill A. Shutemov
2021-09-24  9:41                               ` Kirill A. Shutemov
2021-09-24  9:41                               ` Kirill A. Shutemov
2021-09-24  9:41                               ` Kirill A. Shutemov
2021-09-24  9:51                               ` Borislav Petkov
2021-09-24  9:51                                 ` Borislav Petkov
2021-09-24  9:51                                 ` Borislav Petkov
2021-09-24  9:51                                 ` Borislav Petkov
2021-09-24  9:51                                 ` Borislav Petkov
2021-09-24 13:31                                 ` Tom Lendacky
2021-09-24 13:31                                   ` Tom Lendacky
2021-09-24 13:31                                   ` Tom Lendacky
2021-09-24 13:31                                   ` Tom Lendacky
2021-09-24 13:31                                   ` Tom Lendacky via iommu
2021-09-08 22:58 ` [PATCH v3 6/8] x86/sev: Replace occurrences of sev_active() " Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky via iommu
2021-09-08 22:58 ` [PATCH v3 7/8] x86/sev: Replace occurrences of sev_es_active() " Tom Lendacky via iommu
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58 ` [PATCH v3 8/8] treewide: Replace the use of mem_encrypt_active() " Tom Lendacky via iommu
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-08 22:58   ` Tom Lendacky
2021-09-09  7:25   ` Christophe Leroy
2021-09-09  7:25     ` Christophe Leroy
2021-09-09  7:25     ` Christophe Leroy
2021-09-09  7:25     ` Christophe Leroy
2021-09-09  7:25     ` Christophe Leroy
2021-09-09 13:10     ` Tom Lendacky via iommu
2021-09-09 13:10       ` Tom Lendacky
2021-09-09 13:10       ` Tom Lendacky
2021-09-09 13:10       ` Tom Lendacky
2021-09-09 13:10       ` Tom Lendacky
2021-09-09  7:32 ` [PATCH v3 0/8] Implement generic cc_platform_has() helper function Christian Borntraeger
2021-09-09  7:32   ` Christian Borntraeger
2021-09-09  7:32   ` Christian Borntraeger
2021-09-09  7:32   ` Christian Borntraeger
2021-09-09  7:32   ` Christian Borntraeger
2021-09-09 13:01   ` Tom Lendacky
2021-09-09 13:01     ` Tom Lendacky
2021-09-09 13:01     ` Tom Lendacky
2021-09-09 13:01     ` Tom Lendacky
2021-09-09 13:01     ` Tom Lendacky via iommu
2021-09-15 16:46 ` Borislav Petkov
2021-09-15 16:46   ` Borislav Petkov
2021-09-15 16:46   ` Borislav Petkov
2021-09-15 16:46   ` Borislav Petkov
2021-09-15 16:46   ` Borislav Petkov
2021-09-15 17:26   ` Kuppuswamy, Sathyanarayanan
2021-09-15 17:26     ` Kuppuswamy, Sathyanarayanan
2021-09-15 17:26     ` Kuppuswamy, Sathyanarayanan
2021-09-15 17:26     ` Kuppuswamy, Sathyanarayanan
2021-09-15 17:26     ` Kuppuswamy, Sathyanarayanan
2021-09-16 15:02     ` Borislav Petkov
2021-09-16 15:02       ` Borislav Petkov
2021-09-16 15:02       ` Borislav Petkov
2021-09-16 15:02       ` Borislav Petkov
2021-09-16 15:02       ` Borislav Petkov
2021-09-16 18:38       ` Kuppuswamy, Sathyanarayanan
2021-09-16 18:38         ` Kuppuswamy, Sathyanarayanan
2021-09-16 18:38         ` Kuppuswamy, Sathyanarayanan
2021-09-16 18:38         ` Kuppuswamy, Sathyanarayanan
2021-09-16 18:38         ` Kuppuswamy, Sathyanarayanan

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