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-rw-r--r--drivers/hv/Kconfig57
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diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig
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+# SPDX-License-Identifier: GPL-2.0
+
+menu "Microsoft Hyper-V guest support"
+
+config HYPERV
+ tristate "Microsoft Hyper-V client drivers"
+ depends on (X86 && X86_LOCAL_APIC && HYPERVISOR_GUEST) \
+ || (ACPI && ARM64 && !CPU_BIG_ENDIAN)
+ select PARAVIRT
+ select X86_HV_CALLBACK_VECTOR if X86
+ select OF_EARLY_FLATTREE if OF
+ help
+ Select this option to run Linux as a Hyper-V client operating
+ system.
+
+config HYPERV_VTL_MODE
+ bool "Enable Linux to boot in VTL context"
+ depends on X86_64 && HYPERV
+ default n
+ help
+ Virtual Secure Mode (VSM) is a set of hypervisor capabilities and
+ enlightenments offered to host and guest partitions which enables
+ the creation and management of new security boundaries within
+ operating system software.
+
+ VSM achieves and maintains isolation through Virtual Trust Levels
+ (VTLs). Virtual Trust Levels are hierarchical, with higher levels
+ being more privileged than lower levels. VTL0 is the least privileged
+ level, and currently only other level supported is VTL2.
+
+ Select this option to build a Linux kernel to run at a VTL other than
+ the normal VTL0, which currently is only VTL2. This option
+ initializes the x86 platform for VTL2, and adds the ability to boot
+ secondary CPUs directly into 64-bit context as required for VTLs other
+ than 0. A kernel built with this option must run at VTL2, and will
+ not run as a normal guest.
+
+ If unsure, say N
+
+config HYPERV_TIMER
+ def_bool HYPERV && X86
+
+config HYPERV_UTILS
+ tristate "Microsoft Hyper-V Utilities driver"
+ depends on HYPERV && CONNECTOR && NLS
+ depends on PTP_1588_CLOCK_OPTIONAL
+ help
+ Select this option to enable the Hyper-V Utilities.
+
+config HYPERV_BALLOON
+ tristate "Microsoft Hyper-V Balloon driver"
+ depends on HYPERV
+ select PAGE_REPORTING
+ help
+ Select this option to enable Hyper-V Balloon driver.
+
+endmenu