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SubjectRe: [PATCH v7 0/6] xen/arm/arm64: CONFIG_PARAVIRT and stolen ticks accounting
On Fri, Jun 28, 2013 at 12:19:54PM +0100, Stefano Stabellini wrote:
> Hi all,
> this patch series introduces stolen ticks accounting for Xen on ARM and
> ARM64.
> 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 (6):
> xen: move xen_setup_runstate_info and get_runstate_snapshot to drivers/xen/time.c
> kernel: missing include in cputime.c
> arm: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops
> arm64: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops
> core: remove ifdef CONFIG_PARAVIRT
> xen/arm: account for stolen ticks
>
> arch/arm/Kconfig | 20 ++++++++
> arch/arm/include/asm/paravirt.h | 20 ++++++++
> arch/arm/kernel/Makefile | 1 +
> arch/arm/kernel/paravirt.c | 25 ++++++++++
> arch/arm/xen/enlighten.c | 21 +++++++++
> arch/arm64/Kconfig | 20 ++++++++
> arch/arm64/include/asm/paravirt.h | 20 ++++++++
> arch/arm64/kernel/Makefile | 1 +
> arch/arm64/kernel/paravirt.c | 25 ++++++++++
> arch/ia64/xen/time.c | 48 +++-----------------
> arch/x86/xen/time.c | 76 +------------------------------

This is going to hit some of the patches that David
has sent to tglx, I think. You might want to try to rebase on top
of them (tip/time/for-xen, or something like that ) when they
are ready.

But for the Xen generic maintainer I am OK with these changes
so you can stick Acked-by on them.

Are you thinking to push them yourself or via the arm64 maintainer?



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