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| author | David Woodhouse <dwmw@amazon.co.uk> | 2020-10-24 22:35:26 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-10-28 20:26:28 +0100 |
| commit | a491bb19f728cdb8cc1f4734ecc57c0afa099fac (patch) | |
| tree | 8aa32f81805f58a6396dbb49684846fe3f38001c /drivers/iommu/hyperv-iommu.c | |
| parent | a87fb465ffe8eacd0d69032da33455e4f6fd8b41 (diff) | |
| download | lwn-a491bb19f728cdb8cc1f4734ecc57c0afa099fac.tar.gz lwn-a491bb19f728cdb8cc1f4734ecc57c0afa099fac.zip | |
iommu/hyper-v: Implement select() method on remapping irqdomain
Preparatory for removing irq_remapping_get_irq_domain()
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201024213535.443185-27-dwmw2@infradead.org
Diffstat (limited to 'drivers/iommu/hyperv-iommu.c')
| -rw-r--r-- | drivers/iommu/hyperv-iommu.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/hyperv-iommu.c index 37dd485a5640..78a264ad9405 100644 --- a/drivers/iommu/hyperv-iommu.c +++ b/drivers/iommu/hyperv-iommu.c @@ -101,7 +101,16 @@ static void hyperv_irq_remapping_free(struct irq_domain *domain, irq_domain_free_irqs_common(domain, virq, nr_irqs); } +static int hyperv_irq_remapping_select(struct irq_domain *d, + struct irq_fwspec *fwspec, + enum irq_domain_bus_token bus_token) +{ + /* Claim only the first (and only) I/OAPIC */ + return x86_fwspec_is_ioapic(fwspec) && fwspec->param[0] == 0; +} + static const struct irq_domain_ops hyperv_ir_domain_ops = { + .select = hyperv_irq_remapping_select, .alloc = hyperv_irq_remapping_alloc, .free = hyperv_irq_remapping_free, }; |