From bf210f793937a634bae6eda6a6d699c00b2b53d9 Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Mon, 28 Nov 2022 20:31:57 -0400 Subject: irq/s390: Add arch_is_isolated_msi() for s390 s390 doesn't use irq_domains, so it has no place to set IRQ_DOMAIN_FLAG_ISOLATED_MSI. Instead of continuing to abuse the iommu subsystem to convey this information add a simple define which s390 can make statically true. The define will cause msi_device_has_isolated() to return true. Remove IOMMU_CAP_INTR_REMAP from the s390 iommu driver. Link: https://lore.kernel.org/r/8-v3-3313bb5dd3a3+10f11-secure_msi_jgg@nvidia.com Reviewed-by: Matthew Rosato Tested-by: Matthew Rosato Reviewed-by: Kevin Tian Signed-off-by: Jason Gunthorpe --- kernel/irq/msi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'kernel/irq') diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index ac5e224a11b9..4dec57fc4ea6 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -1647,6 +1647,6 @@ bool msi_device_has_isolated_msi(struct device *dev) for (; domain; domain = domain->parent) if (domain->flags & IRQ_DOMAIN_FLAG_ISOLATED_MSI) return true; - return false; + return arch_is_isolated_msi(); } EXPORT_SYMBOL_GPL(msi_device_has_isolated_msi); -- cgit v1.2.3