x86: Add structs and functions for paravirt clocksource
This patch adds structs for the paravirt clocksource ABI used by both xen and kvm (pvclock-abi.h). It also adds some helper functions to read system time and wall clock time from a paravirtual clocksource (pvclock.[ch]). They are based on the xen code. They are enabled using CONFIG_PARAVIRT_CLOCK. Subsequent patches of this series will put the code in use. Signed-off-by:Gerd Hoffmann <kraxel@redhat.com> Acked-by:
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by:
Avi Kivity <avi@qumranet.com>
parent
a9b21b62
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