over full virtualization. However, when run without a hypervisor
the kernel is theoretically slower and slightly larger.
+config PARAVIRT_SPINLOCKS
+ bool "Paravirtualization layer for spinlocks"
+ depends on PARAVIRT && SMP && EXPERIMENTAL
+ ---help---
+ Paravirtualized spinlocks allow a pvops backend to replace the
+ spinlock implementation with something virtualization-friendly
+ (for example, block the virtual CPU rather than spinning).
+
+ Unfortunately the downside is an up to 5% performance hit on
+ native kernels, with various workloads.
+
+ If you are unsure how to answer this question, answer N.
+
config PARAVIRT_CLOCK
bool
default n