[patch 0/3] x86/PCI/MSI: Make sure that irq reservation mode works everywhere

[Thomas Gleixner]

Dexuan reported that the recent rework of the vector allocation mode in x86
broke HyperV PCI passtrough because the rework missed to add the
MSI_FLAG_MUST_REACTIVATE flag to the HyperV/PCI interrupt domain info.

The simple solution would be to set the flag in the HyperV/PCI driver but
it's better to make this generic and let the PCI/MSI core code set the flag
when reservation mode is enabled. That ensures that future users of this
wont trip over the same problem.

Thanks,

	tglx

---
 arch/x86/Kconfig           |    2 +-
 arch/x86/kernel/apic/msi.c |    5 ++---
 drivers/pci/msi.c          |    2 ++
 kernel/irq/Kconfig         |    3 +++
 4 files changed, 8 insertions(+), 4 deletions(-)