diff options
Diffstat (limited to 'arch/powerpc/Kconfig.debug')
| -rw-r--r-- | arch/powerpc/Kconfig.debug | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index e29ef77d3b0..d7b2aedd89a 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -18,6 +18,20 @@ config DEBUG_STACK_USAGE This option will slow down process creation somewhat. +config HCALL_STATS + bool "Hypervisor call instrumentation" + depends on PPC_PSERIES && DEBUG_FS + help + Adds code to keep track of the number of hypervisor calls made and + the amount of time spent in hypervisor callsr. Wall time spent in + each call is always calculated, and if available CPU cycles spent + are also calculated. A directory named hcall_inst is added at the + root of the debugfs filesystem. Within the hcall_inst directory + are files that contain CPU specific call statistics. + + This option will add a small amount of overhead to all hypervisor + calls. + config DEBUGGER bool "Enable debugger hooks" depends on DEBUG_KERNEL |