2018-03-27 15:01:04 -07:00
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# SPDX-License-Identifier: GPL-2.0
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2011-11-18 18:40:52 +01:00
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menu "Microsoft Hyper-V guest support"
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2011-10-04 12:29:52 -07:00
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config HYPERV
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tristate "Microsoft Hyper-V client drivers"
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2023-03-20 00:47:40 -07:00
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depends on (X86 && X86_LOCAL_APIC && HYPERVISOR_GUEST) \
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2025-04-28 14:07:34 -07:00
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|| (ARM64 && !CPU_BIG_ENDIAN)
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2017-08-02 18:09:19 +02:00
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select PARAVIRT
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2021-08-04 08:52:39 -07:00
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select X86_HV_CALLBACK_VECTOR if X86
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2023-03-20 00:47:40 -07:00
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select OF_EARLY_FLATTREE if OF
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2025-06-13 16:00:59 -07:00
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select SYSFB if EFI && !HYPERV_VTL_MODE
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2011-10-04 12:29:52 -07:00
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help
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Select this option to run Linux as a Hyper-V client operating
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system.
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2023-04-10 22:55:31 -07:00
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config HYPERV_VTL_MODE
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bool "Enable Linux to boot in VTL context"
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2025-04-28 14:07:34 -07:00
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depends on (X86_64 || ARM64) && HYPERV
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2024-03-03 00:01:36 -08:00
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depends on SMP
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2023-04-10 22:55:31 -07:00
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default n
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help
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Virtual Secure Mode (VSM) is a set of hypervisor capabilities and
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enlightenments offered to host and guest partitions which enables
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the creation and management of new security boundaries within
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operating system software.
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VSM achieves and maintains isolation through Virtual Trust Levels
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(VTLs). Virtual Trust Levels are hierarchical, with higher levels
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being more privileged than lower levels. VTL0 is the least privileged
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level, and currently only other level supported is VTL2.
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Select this option to build a Linux kernel to run at a VTL other than
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the normal VTL0, which currently is only VTL2. This option
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2025-04-28 14:07:34 -07:00
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initializes the kernel to run in VTL2, and adds the ability to boot
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2023-04-10 22:55:31 -07:00
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secondary CPUs directly into 64-bit context as required for VTLs other
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than 0. A kernel built with this option must run at VTL2, and will
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not run as a normal guest.
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If unsure, say N
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2019-07-01 04:25:56 +00:00
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config HYPERV_TIMER
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2021-08-04 08:52:39 -07:00
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def_bool HYPERV && X86
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2019-07-01 04:25:56 +00:00
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2011-10-04 12:29:52 -07:00
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config HYPERV_UTILS
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tristate "Microsoft Hyper-V Utilities driver"
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depends on HYPERV && CONNECTOR && NLS
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2021-11-25 18:33:16 -08:00
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depends on PTP_1588_CLOCK_OPTIONAL
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2011-10-04 12:29:52 -07:00
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help
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Select this option to enable the Hyper-V Utilities.
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2012-11-14 01:09:02 -08:00
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config HYPERV_BALLOON
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tristate "Microsoft Hyper-V Balloon driver"
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depends on HYPERV
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2021-03-23 18:47:16 +00:00
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select PAGE_REPORTING
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2012-11-14 01:09:02 -08:00
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help
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Select this option to enable Hyper-V Balloon driver.
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2025-02-21 11:56:35 -08:00
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config MSHV_ROOT
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tristate "Microsoft Hyper-V root partition support"
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depends on HYPERV && (X86_64 || ARM64)
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depends on !HYPERV_VTL_MODE
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# The hypervisor interface operates on 4k pages. Enforcing it here
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# simplifies many assumptions in the root partition code.
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# e.g. When withdrawing memory, the hypervisor gives back 4k pages in
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# no particular order, making it impossible to reassemble larger pages
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depends on PAGE_SIZE_4KB
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2025-03-14 12:28:56 -07:00
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select EVENTFD
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2025-02-21 11:56:35 -08:00
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default n
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help
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Select this option to enable support for booting and running as root
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partition on Microsoft Hyper-V.
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If unsure, say N.
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2011-11-18 18:40:52 +01:00
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endmenu
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