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authorSang-Heon Jeon <ekffu200098@gmail.com>2026-08-24 01:18:14 +0900
committerJulia Lawall <Julia.Lawall@inria.fr>2026-08-23 22:12:11 +0200
commit2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c (patch)
treedcc4da1d99f17541c5590ac63c77da4bf372a4ab /arch/arm64/kvm/Kconfig
downloadlinux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.tar.gz
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coccinelle: alloc_cast: drop removed allocatorsgrafted
- pci_alloc_consistent() and pci_zalloc_consistent() were removed by commit 7968778914e5 ("PCI: Remove the deprecated "pci-dma-compat.h" API") - kmem_alloc() was removed by commit f078d4ea8276 ("xfs: convert kmem_alloc() to kmalloc()") - kmem_zalloc() was removed by commit 10634530f7ba ("xfs: convert kmem_zalloc() to kzalloc()") - kmem_zone_alloc() and kmem_zone_zalloc() were removed by commit bae633a4a283 ("xfs: remove xfs_zone_{alloc,zalloc} helpers") So drop them from the rules. No functional change. Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Diffstat (limited to 'arch/arm64/kvm/Kconfig')
-rw-r--r--arch/arm64/kvm/Kconfig107
1 files changed, 107 insertions, 0 deletions
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
new file mode 100644
index 000000000..449154f9a
--- /dev/null
+++ b/arch/arm64/kvm/Kconfig
@@ -0,0 +1,107 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# KVM configuration
+#
+
+source "virt/kvm/Kconfig"
+
+menuconfig VIRTUALIZATION
+ bool "Virtualization"
+ 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.
+
+ If you say N, all options in this submenu will be skipped and
+ disabled.
+
+if VIRTUALIZATION
+
+menuconfig KVM
+ bool "Kernel-based Virtual Machine (KVM) support"
+ select KVM_COMMON
+ select KVM_GENERIC_HARDWARE_ENABLING
+ select HAVE_KVM_CPU_RELAX_INTERCEPT
+ select KVM_MMIO
+ select KVM_GENERIC_DIRTYLOG_READ_PROTECT
+ select VIRT_XFER_TO_GUEST_WORK
+ select KVM_VFIO
+ 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
+ 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.
+
+ If unsure, say N.
+
+if KVM
+
+config PTDUMP_STAGE2_DEBUGFS
+ bool "Present the stage-2 pagetables to debugfs"
+ 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.
+
+ If in doubt, say N.
+
+config NVHE_EL2_DEBUG
+ bool "Debug mode for non-VHE EL2 object"
+ default n
+ 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.
+
+ If unsure, say N.
+
+if NVHE_EL2_DEBUG
+
+config NVHE_EL2_TRACING
+ bool
+ depends on TRACING && FTRACE
+ select TRACE_REMOTE
+ default y
+
+config PKVM_DISABLE_STAGE2_ON_PANIC
+ bool "Disable the host stage-2 on panic"
+ default n
+ help
+ Relax the host stage-2 on hypervisor panic to allow the kernel to
+ unwind and symbolize the hypervisor stacktrace. This however tampers
+ the system security. This is intended for local EL2 hypervisor
+ development.
+
+ If unsure, say N.
+
+config PKVM_STACKTRACE
+ bool "Protected KVM hypervisor stacktraces"
+ depends on PKVM_DISABLE_STAGE2_ON_PANIC
+ default y
+ 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.
+
+endif # NVHE_EL2_DEBUG
+endif # KVM
+endif # VIRTUALIZATION