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| author | Gerd Hoffmann <kraxel@redhat.com> | 2008-06-03 14:17:29 (GMT) |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-06-24 18:02:31 (GMT) |
| commit | 7af192c954017499ec163bc9dbaaee2e593d7ef2 (patch) | |
| tree | 04e28552d1e1e265443933e3e658949170997c0e /arch/x86/Kconfig | |
| parent | a9b21b622958afc3f3bc5a23d266dd9ed1171fd3 (diff) | |
| download | linux-7af192c954017499ec163bc9dbaaee2e593d7ef2.tar.xz | |
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>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 52e18e6..f94bca6 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -410,6 +410,10 @@ config PARAVIRT over full virtualization. However, when run without a hypervisor the kernel is theoretically slower and slightly larger. +config PARAVIRT_CLOCK + bool + default n + endif config MEMTEST_BOOTPARAM |