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Kernel/Storage: Don't try to enumerate PCI adapters if PCI is disabled
If there's no PCI bus, then it's safe to assume that we run on a x86 machine that has an ISA IDE controller in the system. In such case, we just instantiate a ISAIDEController object that assumes fixed locations of IDE IO ports.
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11 changed files with 283 additions and 142 deletions
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@ -39,7 +39,6 @@ UNMAP_AFTER_INIT void BMIDEChannel::initialize()
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{
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VERIFY(m_io_group.bus_master_base().has_value());
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// Let's try to set up DMA transfers.
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PCI::enable_bus_mastering(m_parent_controller->pci_address());
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{
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auto region_or_error = MM.allocate_dma_buffer_page("IDE PRDT", Memory::Region::Access::ReadWrite, m_prdt_page);
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if (region_or_error.is_error())
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