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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-02-16 13:43:04 -0500
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-02-18 09:26:37 -0500
commit55cb8cd45e0600df1473489518d7f12ce1bbe973 (patch)
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parent1d4610527bc71d3f9eea520fc51a02d54f79dcd0 (diff)
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pci/xen: Use xen_allocate_pirq_msi instead of xen_allocate_pirq
xen_allocate_pirq -> xen_map_pirq_gsi -> PHYSDEVOP_alloc_irq_vector IFF xen_initial_domain() in addition to the kernel side book-keeping side of things (set chip and handler, update irq_info etc) whereas xen_allocate_pirq_msi just does the kernel book keeping. Also xen_allocate_pirq allocates an IRQ in the 1-1 GSI space whereas xen_allocate_pirq_msi allocates a dynamic one in the >GSI IRQ space. All of this is uneccessary as this code path is only executed when we run as a domU PV guest with an MSI/MSI-X PCI card passed in. Hence we can jump straight to allocating an dynamic IRQ (and binding it to the proper PIRQ) and skip the rest. In short: this change is a cosmetic one. Reviewed-by: Ian Campbell <Ian.Campbell@citrix.com> Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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