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author | Thomas Gleixner <tglx@linutronix.de> | 2017-09-14 00:29:46 +0300 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2017-09-25 21:52:00 +0300 |
commit | 2a85386a73fa57b114ba66421b57d3850dbcef9f (patch) | |
tree | 106fb7ffaf3bb1d795727c2bf214d82025be3870 /drivers/iommu/intel_irq_remapping.c | |
parent | ba224feac8bb367edd62da33552353d4bdc3fe3a (diff) | |
download | linux-2a85386a73fa57b114ba66421b57d3850dbcef9f.tar.xz |
x86/apic/msi: Force reactivation of interrupts at startup time
MSI(X) interrupts need a valid vector configuration early at allocation
time, i.e. before the PCI core enables MSI(X).
With managed interrupts and the new global reservation scheme, the early
configuration will not assign a real device vector, but a special shutdown
vector. When the irq is started up, then the interrupt must be
reconfigured. Tell the MSI irqdomain core about it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Tested-by: Yu Chen <yu.c.chen@intel.com>
Acked-by: Juergen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alok Kataria <akataria@vmware.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Rui Zhang <rui.zhang@intel.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Len Brown <lenb@kernel.org>
Link: https://lkml.kernel.org/r/20170913213155.774066582@linutronix.de
Diffstat (limited to 'drivers/iommu/intel_irq_remapping.c')
0 files changed, 0 insertions, 0 deletions