Messages in this thread | | | Date | Mon, 6 May 2013 15:50:22 +0100 | From | Stefano Stabellini <> | Subject | [PATCH RFC v2 0/4] xen/arm: CONFIG_PARAVIRT and stolen ticks accounting |
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Hi all, this patch series introduces stolen ticks accounting for Xen on ARM. Stolen ticks are clocksource ticks that have been "stolen" from the cpu, typically because Linux is running in a virtual machine and the vcpu has been descheduled. To account for these ticks we introduce CONFIG_PARAVIRT and pv_time_ops so that we can make use of:
kernel/sched/cputime.c:steal_account_process_tick
Stefano Stabellini (4): xen: move xen_setup_runstate_info and get_runstate_snapshot to drivers/xen/time.c arm: introduce CONFIG_PARAVIRT and pv_time_ops kernel: missing include in cputime.c xen/arm: account for stolen ticks
arch/arm/Kconfig | 9 ++++ arch/arm/include/asm/paravirt.h | 19 ++++++++ arch/arm/kernel/Makefile | 1 + arch/arm/kernel/paravirt.c | 32 ++++++++++++++ arch/arm/xen/enlighten.c | 23 ++++++++++ arch/ia64/xen/time.c | 48 +++------------------ arch/x86/xen/time.c | 76 +-------------------------------- drivers/xen/Makefile | 2 +- drivers/xen/time.c | 91 +++++++++++++++++++++++++++++++++++++++ include/xen/xen-ops.h | 5 ++ kernel/sched/cputime.c | 1 + 11 files changed, 189 insertions(+), 118 deletions(-) create mode 100644 arch/arm/include/asm/paravirt.h create mode 100644 arch/arm/kernel/paravirt.c create mode 100644 drivers/xen/time.c
Cheers,
Stefano
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