diff options
Diffstat (limited to 'sys/x86/iommu/intel_utils.c')
| -rw-r--r-- | sys/x86/iommu/intel_utils.c | 36 |
1 files changed, 31 insertions, 5 deletions
diff --git a/sys/x86/iommu/intel_utils.c b/sys/x86/iommu/intel_utils.c index 444329c..b19b41c 100644 --- a/sys/x86/iommu/intel_utils.c +++ b/sys/x86/iommu/intel_utils.c @@ -354,20 +354,46 @@ dmar_map_pgtbl(vm_object_t obj, vm_pindex_t idx, int flags, } void -dmar_unmap_pgtbl(struct sf_buf *sf, bool coherent) +dmar_unmap_pgtbl(struct sf_buf *sf) { - vm_page_t m; - m = sf_buf_page(sf); sf_buf_free(sf); sched_unpin(); +} +static void +dmar_flush_transl_to_ram(struct dmar_unit *unit, void *dst, size_t sz) +{ + + if (DMAR_IS_COHERENT(unit)) + return; /* * If DMAR does not snoop paging structures accesses, flush * CPU cache to memory. */ - if (!coherent) - pmap_invalidate_cache_pages(&m, 1); + pmap_invalidate_cache_range((uintptr_t)dst, (uintptr_t)dst + sz, + TRUE); +} + +void +dmar_flush_pte_to_ram(struct dmar_unit *unit, dmar_pte_t *dst) +{ + + dmar_flush_transl_to_ram(unit, dst, sizeof(*dst)); +} + +void +dmar_flush_ctx_to_ram(struct dmar_unit *unit, dmar_ctx_entry_t *dst) +{ + + dmar_flush_transl_to_ram(unit, dst, sizeof(*dst)); +} + +void +dmar_flush_root_to_ram(struct dmar_unit *unit, dmar_root_entry_t *dst) +{ + + dmar_flush_transl_to_ram(unit, dst, sizeof(*dst)); } /* |
