diff options
Diffstat (limited to 'drivers/hv/Kconfig')
| -rw-r--r-- | drivers/hv/Kconfig | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig index 0b8c391a0342..7937ac0cbd0f 100644 --- a/drivers/hv/Kconfig +++ b/drivers/hv/Kconfig @@ -17,7 +17,8 @@ config HYPERV config HYPERV_VTL_MODE bool "Enable Linux to boot in VTL context" - depends on (X86_64 || ARM64) && HYPERV + depends on (X86_64 && HAVE_STATIC_CALL) || ARM64 + depends on HYPERV depends on SMP default n help @@ -75,6 +76,8 @@ config MSHV_ROOT depends on PAGE_SIZE_4KB select EVENTFD select VIRT_XFER_TO_GUEST_WORK + select HMM_MIRROR + select MMU_NOTIFIER default n help Select this option to enable support for booting and running as root @@ -82,4 +85,28 @@ config MSHV_ROOT If unsure, say N. +config MSHV_VTL + tristate "Microsoft Hyper-V VTL driver" + depends on X86_64 && HYPERV_VTL_MODE + depends on HYPERV_VMBUS + # Mapping VTL0 memory to a userspace process in VTL2 is supported in OpenHCL. + # VTL2 for OpenHCL makes use of Huge Pages to improve performance on VMs, + # specially with large memory requirements. + depends on TRANSPARENT_HUGEPAGE + # MTRRs are controlled by VTL0, and are not specific to individual VTLs. + # Therefore, do not attempt to access or modify MTRRs here. + depends on !MTRR + select CPUMASK_OFFSTACK + select VIRT_XFER_TO_GUEST_WORK + default n + help + Select this option to enable Hyper-V VTL driver support. + This driver provides interfaces for Virtual Machine Manager (VMM) running in VTL2 + userspace to create VTLs and partitions, setup and manage VTL0 memory and + allow userspace to make direct hypercalls. This also allows to map VTL0's address + space to a usermode process in VTL2 and supports getting new VMBus messages and channel + events in VTL2. + + If unsure, say N. + endmenu |