[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v11 0/5] xen/arm/arm64: CONFIG_PARAVIRT and stolen ticks accounting
Hi all, I dusted off this series from Jan 2014. Patch #2 and #3 still need an ack. 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 Changes in v11: - add ifdef CONFIG_PARAVIRT to kernel/sched/cputime.c, because not all architectures have an asm/paravirt.h header file to include - drop the removal of ifdef CONFIG_PARAVIRT from kernel/sched/core.c for the same reason Stefano Stabellini (5): xen: move xen_setup_runstate_info and get_runstate_snapshot to drivers/xen/time.c missing include asm/paravirt.h 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 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/x86/xen/time.c | 76 +------------------------------ drivers/xen/Makefile | 2 +- drivers/xen/time.c | 91 +++++++++++++++++++++++++++++++++++++ include/xen/xen-ops.h | 5 ++ kernel/sched/cputime.c | 3 ++ 14 files changed, 254 insertions(+), 76 deletions(-) create mode 100644 arch/arm/include/asm/paravirt.h create mode 100644 arch/arm/kernel/paravirt.c create mode 100644 arch/arm64/include/asm/paravirt.h create mode 100644 arch/arm64/kernel/paravirt.c create mode 100644 drivers/xen/time.c Cheers, Stefano _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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