Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755300AbbKCQTF (ORCPT ); Tue, 3 Nov 2015 11:19:05 -0500 Received: from smtp.citrix.com ([66.165.176.89]:23488 "EHLO SMTP.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755134AbbKCQTB (ORCPT ); Tue, 3 Nov 2015 11:19:01 -0500 X-IronPort-AV: E=Sophos;i="5.20,239,1444694400"; d="scan'208";a="310041039" Date: Tue, 3 Nov 2015 16:18:52 +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 v10 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: MIA1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2497 Lines: 61 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 v10: - rebase - remove ia64 xen changes - add acks - send the correct version of patch #2 (last time I sent an older version by mistake) - remove ifdef CONFIG_PARAVIRT from kernel/sched/core.c - replace "---help---" with "help" in arm and arm64 Kconfig changes Stefano Stabellini (5): xen: move xen_setup_runstate_info and get_runstate_snapshot to drivers/xen/time.c missing include in cputime.c, remove #ifdef CONFIG_PARAVIRT from sched/core.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/core.c | 2 - kernel/sched/cputime.c | 1 + 15 files changed, 252 insertions(+), 78 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 -- 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/