[v1] x86/irq: Bugfix and cleanup for posted MSI interrupts

[patch 0/3] x86/irq: Bugfix and cleanup for posted MSI interrupts

Thomas Gleixner posted 3 patches 6 days, 13 hours ago

Diff against v2
Download series mbox

There is a newer version of this series

arch/x86/include/asm/irq_remapping.h |   12 ++++++-
arch/x86/kernel/irq.c                |   54 +++++++++++++++++++++++------------
drivers/iommu/intel/irq_remapping.c  |   12 +++----
3 files changed, 52 insertions(+), 26 deletions(-)

Expand all Fold all

[patch 0/3] x86/irq: Bugfix and cleanup for posted MSI interrupts

Posted by Thomas Gleixner 6 days, 13 hours ago

Luigi reported that the retrigger mechanism for posted MSI interrupts is
broken. That happens because retrigger sends an IPI to the actual allocated
vector, which is handled correctly, but lacks an EOI. That leaves a stale
APIC ISR bit around.

The following series addresses this and does some related cleanups in that
area on top.

Thanks,

	tglx
---
 arch/x86/include/asm/irq_remapping.h |   12 ++++++-
 arch/x86/kernel/irq.c                |   54 +++++++++++++++++++++++------------
 drivers/iommu/intel/irq_remapping.c  |   12 +++----
 3 files changed, 52 insertions(+), 26 deletions(-)