Time configuration parameters added. More time control code prototyped,

[palacios.git] / Kconfig

diff --git a/Kconfig b/Kconfig
index 1049045..9092a67 100644 (file)
--- a/Kconfig
+++ b/Kconfig
@@ -189,7 +189,6 @@ endmenu
 source "Kconfig.stdlibs"
 
 
-
 menu "Virtual Paging"
 
 config SHADOW_PAGING
@@ -217,6 +216,38 @@ config DEBUG_SHDW_PG_VTLB
 endmenu
 
 
+menu "Time Management"
+
+
+config TIME_VIRTUALIZE_TSC
+       bool "Virtualize guest TSC"
+       default n
+       help
+           Virtualize the processor time stamp counter in the guest, 
+           generally increasing consistency between various time sources 
+           but also potentially making guest time run slightly slower
+           than real time.
+
+config TIME_VIRTUAL_TSC_CONTROL
+       bool "Adjust virtual TSC towards real time when possible"
+       default y
+       depends on TIME_VIRTUALIZE_TSC
+       help 
+           Enables control of TSC virtualization so that the TSC
+           attempts to catch up with real time when possible
+
+config TIME_MASK_OVERHEAD
+       bool "Hide virtualization overhead from guest timing"
+       default n
+       depends on TIME_VIRTUALIZE_TSC
+       help
+           Try to mask the overhead of virtualization from guests
+           by not including it in the time updates. Can dramatically
+           slow virtual time compared to real time if VIRTUAL_TSC_CONTROL
+           is not enabled.
+
+endmenu
+
 menu "Symbiotic Functions"
 
 config SYMBIOTIC