Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756414AbaAIScM (ORCPT ); Thu, 9 Jan 2014 13:32:12 -0500 Received: from smtp02.citrix.com ([66.165.176.63]:34259 "EHLO SMTP02.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755043AbaAIScA (ORCPT ); Thu, 9 Jan 2014 13:32:00 -0500 X-IronPort-AV: E=Sophos;i="4.95,632,1384300800"; d="scan'208";a="89253149" Date: Thu, 9 Jan 2014 18:15:07 +0000 From: Stefano Stabellini X-X-Sender: sstabellini@kaball.uk.xensource.com To: "xen-devel@lists.xensource.com" CC: "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Konrad Rzeszutek Wilk , "marc.zyngier@arm.com" , Will Deacon , Stefano Stabellini , Ian Campbell , Russell King - ARM Linux , Olof Johansson , , Catalin Marinas Subject: [PATCH v9 0/5] xen/arm/arm64: CONFIG_PARAVIRT and stolen ticks accounting Message-ID: User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" X-DLP: MIA2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Changes in v9: - added back missing new files from patches; - fix compilation on avr32 (remove patch #5, revert to previous version of patch #2). Stefano Stabellini (5): 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 xen/arm: account for stolen ticks arch/arm/Kconfig | 20 ++++++++ arch/arm/include/asm/paravirt.h | 20 ++++++++ arch/arm/kernel/Makefile | 2 + 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 +------------------------------ drivers/xen/Makefile | 2 +- drivers/xen/time.c | 91 +++++++++++++++++++++++++++++++++++++ include/xen/xen-ops.h | 5 ++ kernel/sched/cputime.c | 3 ++ 15 files changed, 261 insertions(+), 118 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 git://git.kernel.org/pub/scm/linux/kernel/git/sstabellini/xen.git lost_ticks_9 Cheers, Stefano -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/