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Kernel/CommandLine: Add option to disable physical networking hardware

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This is useful for debugging sessions mostly.
This commit is contained in:
Liav A 2021-06-04 08:02:14 +03:00 • committed by Ali Mohammad Pur
parent 1c94b5e8eb
commit 2e2201e8e1
Notes: sideshowbarker 2024-07-18 12:32:35 +09:00
3 changed files with 15 additions and 7 deletions
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5
Kernel/CommandLine.cpp
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@ -154,6 +154,11 @@ UNMAP_AFTER_INIT HPETMode CommandLine::hpet_mode() const
PANIC("Unknown HPETMode: {}", hpet_mode);
}
UNMAP_AFTER_INIT bool CommandLine::is_physical_networking_disabled() const
{
return contains("disable_physical_networking"sv);
}
UNMAP_AFTER_INIT bool CommandLine::disable_ps2_controller() const
{
return contains("disable_ps2_controller"sv);

1
Kernel/CommandLine.h
View file

@ -55,6 +55,7 @@ public:
[[nodiscard]] bool is_boot_profiling_enabled() const;
[[nodiscard]] bool is_ide_enabled() const;
[[nodiscard]] bool is_smp_enabled() const;
[[nodiscard]] bool is_physical_networking_disabled() const;
[[nodiscard]] bool is_vmmouse_enabled() const;
[[nodiscard]] PCIAccessLevel pci_access_level() const;
[[nodiscard]] bool is_legacy_time_enabled() const;

16
Kernel/Net/NetworkingManagement.cpp
View file

@ -85,13 +85,15 @@ UNMAP_AFTER_INIT RefPtr<NetworkAdapter> NetworkingManagement::determine_network_
bool NetworkingManagement::initialize()
{
PCI::enumerate([&](const PCI::Address& address, PCI::ID) {
// Note: PCI class 2 is the class of Network devices
if (PCI::get_class(address) != 0x02)
return;
if (auto adapter = determine_network_device(address); !adapter.is_null())
m_adapters.append(adapter.release_nonnull());
});
if (!kernel_command_line().is_physical_networking_disabled()) {
PCI::enumerate([&](const PCI::Address& address, PCI::ID) {
// Note: PCI class 2 is the class of Network devices
if (PCI::get_class(address) != 0x02)
return;
if (auto adapter = determine_network_device(address); !adapter.is_null())
m_adapters.append(adapter.release_nonnull());
});
}
auto loopback = LoopbackAdapter::create();
m_adapters.append(loopback);
m_loopback_adapter = loopback;