2aef6f306b
Introduce GUEST_PERF_EVENTS and require architectures to select it to allow registering and using guest callbacks in perf. This will hopefully make it more difficult for new architectures to add useless "support" for guest callbacks, e.g. via copy+paste. Stubbing out the helpers has the happy bonus of avoiding a load of perf_guest_cbs when GUEST_PERF_EVENTS=n on arm64/x86. Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Link: https://lore.kernel.org/r/20211111020738.2512932-9-seanjc@google.com
59 lines
1.4 KiB
Plaintext
59 lines
1.4 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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#
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# KVM configuration
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#
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source "virt/lib/Kconfig"
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source "virt/kvm/Kconfig"
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menuconfig VIRTUALIZATION
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bool "Virtualization"
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help
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Say Y here to get to see options for using your Linux host to run
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other operating systems inside virtual machines (guests).
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This option alone does not add any kernel code.
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If you say N, all options in this submenu will be skipped and
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disabled.
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if VIRTUALIZATION
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menuconfig KVM
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bool "Kernel-based Virtual Machine (KVM) support"
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depends on HAVE_KVM
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select MMU_NOTIFIER
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select PREEMPT_NOTIFIERS
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select HAVE_KVM_CPU_RELAX_INTERCEPT
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select HAVE_KVM_ARCH_TLB_FLUSH_ALL
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select KVM_MMIO
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select KVM_GENERIC_DIRTYLOG_READ_PROTECT
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select KVM_XFER_TO_GUEST_WORK
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select SRCU
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select KVM_VFIO
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select HAVE_KVM_EVENTFD
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select HAVE_KVM_IRQFD
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select HAVE_KVM_MSI
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select HAVE_KVM_IRQCHIP
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select HAVE_KVM_IRQ_ROUTING
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select IRQ_BYPASS_MANAGER
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select HAVE_KVM_IRQ_BYPASS
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select HAVE_KVM_VCPU_RUN_PID_CHANGE
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select SCHED_INFO
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select GUEST_PERF_EVENTS if PERF_EVENTS
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help
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Support hosting virtualized guest machines.
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If unsure, say N.
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config NVHE_EL2_DEBUG
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bool "Debug mode for non-VHE EL2 object"
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depends on KVM
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help
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Say Y here to enable the debug mode for the non-VHE KVM EL2 object.
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Failure reports will BUG() in the hypervisor. This is intended for
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local EL2 hypervisor development.
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If unsure, say N.
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endif # VIRTUALIZATION
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