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518a57d8e5
This allows the platform driver to take over control of DMA remapping and keeps NOVA-driven interrupt remapping active. genodelabs/genode#5002
15 lines
830 B
Diff
15 lines
830 B
Diff
diff --git a/src/iommu_intel.cpp b/src/iommu_intel.cpp
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index 1441466..c07224e 100644
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--- a/src/iommu_intel.cpp
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+++ b/src/iommu_intel.cpp
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@@ -36,7 +36,8 @@ uint32 Dmar::gcmd = GCMD_TE;
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Dmar::Dmar (Paddr p) : List<Dmar> (list), reg_base ((hwdev_addr -= PAGE_SIZE) | (p & PAGE_MASK)), invq (static_cast<Dmar_qi *>(Buddy::allocator.alloc (ord, Pd::kern.quota, Buddy::FILL_0))), invq_idx (0)
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{
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- Pd::kern.Space_mem::delreg (Pd::kern.quota, Pd::kern.mdb_cache, p & ~PAGE_MASK);
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+// XXX allow Genode platform driver to access device and take over control
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+// Pd::kern.Space_mem::delreg (Pd::kern.quota, Pd::kern.mdb_cache, p & ~PAGE_MASK);
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Pd::kern.Space_mem::insert (Pd::kern.quota, reg_base, 0, Hpt::HPT_NX | Hpt::HPT_G | Hpt::HPT_UC | Hpt::HPT_W | Hpt::HPT_P, p & ~PAGE_MASK);
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cap = read<uint64>(REG_CAP);
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