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pci_decode: add <irq/> to drhd devices

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genodelabs/genode#5002
This commit is contained in:
Johannes Schlatow 2023-10-03 15:48:24 +02:00
parent 7c5b59556a
commit 022762605b
1 changed files with 13 additions and 6 deletions
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19
repos/os/src/app/pci_decode/main.cc
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@ -39,6 +39,13 @@ struct Main
bool apic_capable { false }; bool apic_capable { false };
bool msi_capable { false }; bool msi_capable { false };
/*
* We count beginning from 1 not 0, because some clients (Linux drivers)
* do not ignore the pseudo MSI number announced, but interpret zero as
* invalid.
*/
unsigned msi_start { 1 };
List_model<Irq_routing> irq_routing_list {}; List_model<Irq_routing> irq_routing_list {};
List_model<Irq_override> irq_override_list {}; List_model<Irq_override> irq_override_list {};
List_model<Rmrr> reserved_memory_list {}; List_model<Rmrr> reserved_memory_list {};
@ -455,6 +462,11 @@ void Main::parse_acpi_device_info(Xml_node const &xml, Xml_generator & gen)
gen.attribute("address", String<20>(Hex(drhd.addr))); gen.attribute("address", String<20>(Hex(drhd.addr)));
gen.attribute("size", String<20>(Hex(drhd.size))); gen.attribute("size", String<20>(Hex(drhd.size)));
}); });
gen.node("irq", [&]
{
gen.attribute("type", "msi");
gen.attribute("number", msi_start++);
});
}); });
}); });
} }
@ -462,12 +474,7 @@ void Main::parse_acpi_device_info(Xml_node const &xml, Xml_generator & gen)
void Main::parse_pci_config_spaces(Xml_node & xml, Xml_generator & generator) void Main::parse_pci_config_spaces(Xml_node & xml, Xml_generator & generator)
{ {
/* unsigned msi_number = msi_start;
* We count beginning from 1 not 0, because some clients (Linux drivers)
* do not ignore the pseudo MSI number announced, but interpret zero as
* invalid.
*/
unsigned msi_number = 1;
unsigned host_bridge_num = 0; unsigned host_bridge_num = 0;
xml.for_each_sub_node("bdf", [&] (Xml_node & xml) xml.for_each_sub_node("bdf", [&] (Xml_node & xml)