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| author |   Jason Gunthorpe <jgg@nvidia.com> | 2022-11-28 20:31:57 -0400 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2023-01-11 16:27:23 -0400 |
| commit | bf210f793937a634bae6eda6a6d699c00b2b53d9 (patch) | |
| tree | 2f59938255601c234e229639f321d8b5f572ad5d /kernel/irq/msi.c | |
| parent | iommu/x86: Replace IOMMU_CAP_INTR_REMAP with IRQ_DOMAIN_FLAG_ISOLATED_MSI (diff) | |
| download | wireguard-linux-bf210f793937a634bae6eda6a6d699c00b2b53d9.tar.xz wireguard-linux-bf210f793937a634bae6eda6a6d699c00b2b53d9.zip | |
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 <mjrosato@linux.ibm.com>
Tested-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'kernel/irq/msi.c')
| -rw-r--r-- | kernel/irq/msi.c | 2 |
1 files changed, 1 insertions, 1 deletions
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); |