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[Qemu-devel] [PATCH v3 0/5] hpet 'driftfix': alleviate time drift with H
From: |
Ulrich Obergfell |
Subject: |
[Qemu-devel] [PATCH v3 0/5] hpet 'driftfix': alleviate time drift with HPET periodic timers |
Date: |
Thu, 28 Apr 2011 16:24:55 +0200 |
Hi,
This is version 3 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
Changes since version 2:
- The vmstate related to 'driftfix' is now in a separate subsection
that can be migrated conditionally.
- The new fields of the HPETTimer structure are no longer initialized
in hpet_init(). This is now done in hpet_reset() only.
- Compensation of lost timer interrupts is now based on a backlog of
unaccounted HPET clock periods instead of 'irqs_to_inject'. This
eliminates the need to scale 'irqs_to_inject' when a 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 | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
sysemu.h | 3 ++
vl.c | 3 ++
4 files changed, 120 insertions(+), 4 deletions(-)
- [Qemu-devel] [PATCH v3 0/5] hpet 'driftfix': alleviate time drift with HPET periodic timers,
Ulrich Obergfell <=
[Qemu-devel] [PATCH v3 2/5] hpet 'driftfix': add driftfix property to HPETState and DeviceInfo, Ulrich Obergfell, 2011/04/28
[Qemu-devel] [PATCH v3 3/5] hpet 'driftfix': add fields to HPETTimer and VMStateDescription, Ulrich Obergfell, 2011/04/28
[Qemu-devel] [PATCH v3 4/5] hpet 'driftfix': add code in update_irq() to detect coalesced interrupts (x86 apic only), Ulrich Obergfell, 2011/04/28
[Qemu-devel] [PATCH v3 5/5] hpet 'driftfix': add code in hpet_timer() to compensate delayed callbacks and coalesced interrupts, Ulrich Obergfell, 2011/04/28