diff options
| author | Dapeng Mi <dapeng1.mi@linux.intel.com> | 2026-09-17 09:52:33 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2026-09-22 11:37:46 +0200 |
| commit | 0102c8c7fdfc4bd700971daff2b94470f4eafae4 (patch) | |
| tree | 531306c2299f9a269f0a986e29f17ba972180104 /arch/arm64/kvm/Kconfig | |
| download | linux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.tar.gz linux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.zip | |
perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rspgrafted
DMR introduces Offmodule Response events in place of the legacy
Offcore Response events, but it still exposes the inherited
offcore_rsp PMU attribute for programming the corresponding MSR data.
Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface
matches the underlying event name and avoids user & tooling confusion.
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com
Diffstat (limited to 'arch/arm64/kvm/Kconfig')
| -rw-r--r-- | arch/arm64/kvm/Kconfig | 107 |
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 |
