diff options
Diffstat (limited to 'arch/arm64/kvm/Kconfig')
| -rw-r--r-- | arch/arm64/kvm/Kconfig | 78 |
1 files changed, 53 insertions, 25 deletions
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index 52cb7ad9b2fd..4f803fd1c99a 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # KVM configuration # @@ -6,7 +7,7 @@ source "virt/kvm/Kconfig" menuconfig VIRTUALIZATION bool "Virtualization" - ---help--- + help Say Y here to get to see options for using your Linux host to run other operating systems inside virtual machines (guests). This option alone does not add any kernel code. @@ -16,43 +17,70 @@ menuconfig VIRTUALIZATION if VIRTUALIZATION -config KVM +menuconfig KVM bool "Kernel-based Virtual Machine (KVM) support" - depends on OF - select MMU_NOTIFIER - select PREEMPT_NOTIFIERS - select ANON_INODES + select KVM_COMMON + select KVM_GENERIC_HARDWARE_ENABLING + select KVM_GENERIC_MMU_NOTIFIER select HAVE_KVM_CPU_RELAX_INTERCEPT - select HAVE_KVM_ARCH_TLB_FLUSH_ALL select KVM_MMIO - select KVM_ARM_HOST select KVM_GENERIC_DIRTYLOG_READ_PROTECT - select SRCU + select VIRT_XFER_TO_GUEST_WORK select KVM_VFIO - select HAVE_KVM_EVENTFD - select HAVE_KVM_IRQFD - select KVM_ARM_PMU if HW_PERF_EVENTS + select HAVE_KVM_DIRTY_RING_ACQ_REL + select NEED_KVM_DIRTY_RING_WITH_BITMAP select HAVE_KVM_MSI select HAVE_KVM_IRQCHIP select HAVE_KVM_IRQ_ROUTING - ---help--- + select HAVE_KVM_IRQ_BYPASS + select HAVE_KVM_READONLY_MEM + select HAVE_KVM_VCPU_RUN_PID_CHANGE + select SCHED_INFO + select GUEST_PERF_EVENTS if PERF_EVENTS + select KVM_GUEST_MEMFD + help Support hosting virtualized guest machines. - We don't support KVM with 16K page tables yet, due to the multiple - levels of fake page tables. If unsure, say N. -config KVM_ARM_HOST - bool - ---help--- - Provides host support for ARM processors. +config NVHE_EL2_DEBUG + bool "Debug mode for non-VHE EL2 object" + depends on KVM + help + Say Y here to enable the debug mode for the non-VHE KVM EL2 object. + Failure reports will BUG() in the hypervisor. This is intended for + local EL2 hypervisor development. -config KVM_ARM_PMU - bool - ---help--- - Adds support for a virtual Performance Monitoring Unit (PMU) in - virtual machines. + If unsure, say N. + +config PROTECTED_NVHE_STACKTRACE + bool "Protected KVM hypervisor stacktraces" + depends on NVHE_EL2_DEBUG + default n + help + Say Y here to enable pKVM hypervisor stacktraces on hyp_panic() + + If using protected nVHE mode, but cannot afford the associated + memory cost (less than 0.75 page per CPU) of pKVM stacktraces, + say N. + + If unsure, or not using protected nVHE (pKVM), say N. + +config PTDUMP_STAGE2_DEBUGFS + bool "Present the stage-2 pagetables to debugfs" + depends on KVM + depends on DEBUG_KERNEL + depends on DEBUG_FS + depends on ARCH_HAS_PTDUMP + select PTDUMP + default n + help + Say Y here if you want to show the stage-2 kernel pagetables + layout in a debugfs file. This information is only useful for kernel developers + who are working in architecture specific areas of the kernel. + It is probably not a good idea to enable this feature in a production + kernel. -source drivers/vhost/Kconfig + If in doubt, say N. endif # VIRTUALIZATION |