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Kernel: Change PCI access commandline option to also represent no access

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This change allow the user to request the kernel to not use any PCI
resources/devices at all.

Also, don't try to initialize devices that rely on PCI if disabled.
This commit is contained in:
Liav A 2022-01-21 16:09:05 +02:00 • committed by Andreas Kling
parent 6bf59cbb1b
commit f6e635938f
5 changed files with 25 additions and 8 deletions
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14
Kernel/init.cpp
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@ -299,8 +299,10 @@ void init_stage2(void*)
}
// Initialize the PCI Bus as early as possible, for early boot (PCI based) serial logging
PCI::initialize();
PCISerialDevice::detect();
if (!kernel_command_line().is_pci_disabled()) {
PCI::initialize();
PCISerialDevice::detect();
}
VirtualFileSystem::initialize();
@ -321,10 +323,14 @@ void init_stage2(void*)
auto boot_profiling = kernel_command_line().is_boot_profiling_enabled();
USB::USBManagement::initialize();
if (!kernel_command_line().is_pci_disabled()) {
USB::USBManagement::initialize();
}
FirmwareSysFSDirectory::initialize();
VirtIO::detect();
if (!kernel_command_line().is_pci_disabled()) {
VirtIO::detect();
}
NetworkingManagement::the().initialize();
Syscall::initialize();