From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=51919 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q8DUg-0000SV-GF for qemu-devel@nongnu.org; Fri, 08 Apr 2011 11:21:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q8DUO-0005We-PA for qemu-devel@nongnu.org; Fri, 08 Apr 2011 11:20:49 -0400 Received: from mx1.redhat.com ([209.132.183.28]:57849) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q8DUO-0005WT-Ex for qemu-devel@nongnu.org; Fri, 08 Apr 2011 11:20:48 -0400 From: Ulrich Obergfell Date: Fri, 8 Apr 2011 17:20:37 +0200 Message-Id: <1302276042-3497-1-git-send-email-uobergfe@redhat.com> Subject: [Qemu-devel] [PATCH v2 0/5] hpet 'driftfix': alleviate time drift with HPET periodic timers List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: aliguori@us.ibm.com, kvm@vger.kernel.org, jan.kiszka@siemens.com, uobergfe@redhat.com, gcosta@redhat.com, avi@redhat.com Hi, This is version 2 of a series of patches that I originally posted in: http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg01989.html http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg01992.html http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg01991.html http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg01990.html http://article.gmane.org/gmane.comp.emulators.kvm.devel/69325 http://article.gmane.org/gmane.comp.emulators.kvm.devel/69326 http://article.gmane.org/gmane.comp.emulators.kvm.devel/69327 http://article.gmane.org/gmane.comp.emulators.kvm.devel/69328 I implemented the proposed changes (remove configurability and ifdefs, define 'driftfix' as a property of the HPET device) and I've split the patch into smaller parts (originally 3, now 5). I also included a fix related to scaling 't->irqs_to_inject' when the guest o/s modifies the comparator register value. Please review and please comment. Regards, Uli Ulrich Obergfell (5): hpet 'driftfix': add hooks required to detect coalesced interrupts (x86 apic only) hpet 'driftfix': add driftfix property to HPETState and DeviceInfo hpet 'driftfix': add fields to HPETTimer and VMStateDescription hpet 'driftfix': add code in update_irq() to detect coalesced interrupts (x86 apic only) hpet 'driftfix': add code in hpet_timer() to compensate delayed callbacks and coalesced interrupts hw/apic.c | 4 +++ hw/hpet.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++--- sysemu.h | 3 ++ vl.c | 3 ++ 4 files changed, 95 insertions(+), 5 deletions(-)