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    Subject[patch 44/52] 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>
    ---
    arch/x86/kernel/apic/msi.c | 5 +++--
    1 file changed, 3 insertions(+), 2 deletions(-)

    --- a/arch/x86/kernel/apic/msi.c
    +++ b/arch/x86/kernel/apic/msi.c
    @@ -129,7 +129,7 @@ static struct msi_domain_ops pci_msi_dom

    static struct msi_domain_info pci_msi_domain_info = {
    .flags = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
    - MSI_FLAG_PCI_MSIX,
    + MSI_FLAG_PCI_MSIX | MSI_FLAG_MUST_REACTIVATE,
    .ops = &pci_msi_domain_ops,
    .chip = &pci_msi_controller,
    .handler = handle_edge_irq,
    @@ -167,7 +167,8 @@ static struct irq_chip pci_msi_ir_contro

    static struct msi_domain_info pci_msi_ir_domain_info = {
    .flags = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
    - MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX,
    + MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX |
    + MSI_FLAG_MUST_REACTIVATE,
    .ops = &pci_msi_domain_ops,
    .chip = &pci_msi_ir_controller,
    .handler = handle_edge_irq,

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