linux-kernel - [PATCH v10 14/18] nitro_enclaves: Add Kconfig for the Nitro Enclaves driver

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Message-ID: <20200921121732.44291-15-andraprs@amazon.com>
Date:   Mon, 21 Sep 2020 15:17:28 +0300
From:   Andra Paraschiv <andraprs@...zon.com>
To:     linux-kernel <linux-kernel@...r.kernel.org>
CC:     Anthony Liguori <aliguori@...zon.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Colm MacCarthaigh <colmmacc@...zon.com>,
        "David Duncan" <davdunc@...zon.com>,
        Bjoern Doebel <doebel@...zon.de>,
        "David Woodhouse" <dwmw@...zon.co.uk>,
        Frank van der Linden <fllinden@...zon.com>,
        Alexander Graf <graf@...zon.de>,
        Greg KH <gregkh@...uxfoundation.org>,
        "Karen Noel" <knoel@...hat.com>,
        Martin Pohlack <mpohlack@...zon.de>,
        Matt Wilson <msw@...zon.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Stefano Garzarella <sgarzare@...hat.com>,
        Stefan Hajnoczi <stefanha@...hat.com>,
        Stewart Smith <trawets@...zon.com>,
        Uwe Dannowski <uwed@...zon.de>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        kvm <kvm@...r.kernel.org>,
        ne-devel-upstream <ne-devel-upstream@...zon.com>,
        Andra Paraschiv <andraprs@...zon.com>
Subject: [PATCH v10 14/18] nitro_enclaves: Add Kconfig for the Nitro Enclaves driver

Add kernel config entry for Nitro Enclaves, including dependencies.

Changelog

v9 -> v10

* Update commit message to include the changelog before the SoB tag(s).

v8 -> v9

* No changes.

v7 -> v8

* No changes.

v6 -> v7

* Remove, for now, the dependency on ARM64 arch. x86 is currently
  supported, with Arm to come afterwards. The NE kernel driver can be
  built for aarch64 arch.

v5 -> v6

* No changes.

v4 -> v5

* Add arch dependency for Arm / x86.

v3 -> v4

* Add PCI and SMP dependencies.

v2 -> v3

* Remove the GPL additional wording as SPDX-License-Identifier is
  already in place.

v1 -> v2

* Update path to Kconfig to match the drivers/virt/nitro_enclaves
  directory.
* Update help in Kconfig.

Signed-off-by: Andra Paraschiv <andraprs@...zon.com>
Reviewed-by: Alexander Graf <graf@...zon.com>
---
 drivers/virt/Kconfig                |  2 ++
 drivers/virt/nitro_enclaves/Kconfig | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 drivers/virt/nitro_enclaves/Kconfig

diff --git a/drivers/virt/Kconfig b/drivers/virt/Kconfig
index cbc1f25c79ab..80c5f9c16ec1 100644
--- a/drivers/virt/Kconfig
+++ b/drivers/virt/Kconfig
@@ -32,4 +32,6 @@ config FSL_HV_MANAGER
 	     partition shuts down.
 
 source "drivers/virt/vboxguest/Kconfig"
+
+source "drivers/virt/nitro_enclaves/Kconfig"
 endif
diff --git a/drivers/virt/nitro_enclaves/Kconfig b/drivers/virt/nitro_enclaves/Kconfig
new file mode 100644
index 000000000000..8c9387a232df
--- /dev/null
+++ b/drivers/virt/nitro_enclaves/Kconfig
@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+
+# Amazon Nitro Enclaves (NE) support.
+# Nitro is a hypervisor that has been developed by Amazon.
+
+# TODO: Add dependency for ARM64 once NE is supported on Arm platforms. For now,
+# the NE kernel driver can be built for aarch64 arch.
+# depends on (ARM64 || X86) && HOTPLUG_CPU && PCI && SMP
+
+config NITRO_ENCLAVES
+	tristate "Nitro Enclaves Support"
+	depends on X86 && HOTPLUG_CPU && PCI && SMP
+	help
+	  This driver consists of support for enclave lifetime management
+	  for Nitro Enclaves (NE).
+
+	  To compile this driver as a module, choose M here.
+	  The module will be called nitro_enclaves.
-- 
2.20.1 (Apple Git-117)




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