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Some VT-d hardware implementations invalidate all interrupt remapping hardware translation caches as part of SIRTP flow. The VT-d spec adds a ESIRTPS (Enhanced Set Interrupt Remap Table Pointer Support, section 11.4.2 in VT-d spec) capability bit to indicate this. The spec also states in 11.4.4 that hardware also performs global invalidation on all interrupt remapping caches as part of Interrupt Remapping Disable operation if ESIRTPS capability bit is set. This checks the ESIRTPS capability bit and skip software global cache invalidation if it's set. Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Link: https://lore.kernel.org/r/20220921065741.3572495-1-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de> |
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| .. | ||
| cap_audit.c | ||
| cap_audit.h | ||
| debugfs.c | ||
| dmar.c | ||
| iommu.c | ||
| iommu.h | ||
| irq_remapping.c | ||
| Kconfig | ||
| Makefile | ||
| pasid.c | ||
| pasid.h | ||
| perf.c | ||
| perf.h | ||
| svm.c | ||
| trace.c | ||
| trace.h | ||