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Kernel: Expose PCI BAR addresses in sysfs

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Regardless of whether we use those BARs or not, expose them so userland
can use these values for its usage.
This commit is contained in:
Liav A 2022-02-10 15:15:06 +02:00 • committed by Andreas Kling
parent a91da67216
commit f8df21c7e7
1 changed files with 19 additions and 0 deletions
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19
Kernel/Bus/PCI/SysFSPCI.cpp
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@ -32,6 +32,13 @@ UNMAP_AFTER_INIT PCIDeviceSysFSDirectory::PCIDeviceSysFSDirectory(NonnullOwnPtr<
m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::PROG_IF, 1));
m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::SUBSYSTEM_VENDOR_ID, 2));
m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::SUBSYSTEM_ID, 2));
m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR0, 4));
m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR1, 4));
m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR2, 4));
m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR3, 4));
m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR4, 4));
m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR5, 4));
}
UNMAP_AFTER_INIT void PCIBusSysFSDirectory::initialize()
@ -68,6 +75,18 @@ StringView PCIDeviceAttributeSysFSComponent::name() const
return "subsystem_vendor"sv;
case PCI::RegisterOffset::SUBSYSTEM_ID:
return "subsystem_id"sv;
case PCI::RegisterOffset::BAR0:
return "bar0"sv;
case PCI::RegisterOffset::BAR1:
return "bar1"sv;
case PCI::RegisterOffset::BAR2:
return "bar2"sv;
case PCI::RegisterOffset::BAR3:
return "bar3"sv;
case PCI::RegisterOffset::BAR4:
return "bar4"sv;
case PCI::RegisterOffset::BAR5:
return "bar5"sv;
default:
VERIFY_NOT_REACHED();
}