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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
- depends on SMP
- 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
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