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Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 8cc62289a63e..cf118d93290d 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -750,6 +750,19 @@ config ARM64_LSE_ATOMICS not support these instructions and requires the kernel to be built with binutils >= 2.25. +config ARM64_VHE + bool "Enable support for Virtualization Host Extensions (VHE)" + default y + help + Virtualization Host Extensions (VHE) allow the kernel to run + directly at EL2 (instead of EL1) on processors that support + it. This leads to better performance for KVM, as they reduce + the cost of the world switch. + + Selecting this option allows the VHE feature to be detected + at runtime, and does not affect processors that do not + implement this feature. + endmenu endmenu |