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[Qemu-devel] [PATCH v4 0/5] hpet 'driftfix': alleviate time drift with H
From: |
Ulrich Obergfell |
Subject: |
[Qemu-devel] [PATCH v4 0/5] hpet 'driftfix': alleviate time drift with HPET periodic timers |
Date: |
Mon, 9 May 2011 09:03:16 +0200 |
Hi,
This is version 4 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 3:
in patch part 1/5 and part 4/5
- Added stub functions for 'target_reset_irq_delivered' and
'target_get_irq_delivered'. Added registration functions
that are used by apic code to replace the stubs.
- Removed NULL pointer checks from update_irq().
in patch part 5/5
- A minor modification in hpet_timer_has_tick_backlog().
- Renamed the local variable 'irq_count' in hpet_timer() to
'period_count'.
- Driftfix-related fields in struct 'HPETTimer' are no longer
being initialized/reset in hpet_reset(). Added the function
hpet_timer_driftfix_reset() which is called when the guest
. sets the 'CFG_ENABLE' bit (overall enable)
in the General Configuration Register.
. sets the 'TN_ENABLE' bit (timer N interrupt enable)
in the Timer N Configuration and Capabilities Register.
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 | 119 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
hw/pc.h | 13 +++++++
vl.c | 13 +++++++
4 files changed, 145 insertions(+), 4 deletions(-)
- [Qemu-devel] [PATCH v4 0/5] hpet 'driftfix': alleviate time drift with HPET periodic timers,
Ulrich Obergfell <=
- [Qemu-devel] [PATCH v4 1/5] hpet 'driftfix': add hooks required to detect coalesced interrupts (x86 apic only), Ulrich Obergfell, 2011/05/09
- [Qemu-devel] [PATCH v4 2/5] hpet 'driftfix': add driftfix property to HPETState and DeviceInfo, Ulrich Obergfell, 2011/05/09
- [Qemu-devel] [PATCH v4 3/5] hpet 'driftfix': add fields to HPETTimer and VMStateDescription, Ulrich Obergfell, 2011/05/09
- [Qemu-devel] [PATCH v4 5/5] hpet 'driftfix': add code in hpet_timer() to compensate delayed callbacks and coalesced interrupts, Ulrich Obergfell, 2011/05/09
- [Qemu-devel] [PATCH v4 4/5] hpet 'driftfix': add code in update_irq() to detect coalesced interrupts (x86 apic only), Ulrich Obergfell, 2011/05/09