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Kernel/riscv64: Get the kernel command line from the device tree

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This also hides the fdt dump by default now,
it can be activated by adding `dump_fdt` to the kernel command line
This commit is contained in:
Hendiadyoin1 2024-02-11 15:32:27 +01:00 • committed by Andrew Kaster
parent 51b841b4b2
commit 3941277940
3 changed files with 15 additions and 3 deletions
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7
Kernel/Arch/riscv64/CPU.cpp
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@ -32,6 +32,13 @@ void dump_fdt()
MUST(DeviceTree::dump(header, fdt));
}
ErrorOr<StringView> get_command_line_from_fdt()
{
auto& header = *bit_cast<DeviceTree::FlattenedDeviceTreeHeader*>(&s_fdt_storage[0]);
auto fdt = ReadonlyBytes(s_fdt_storage, header.totalsize);
return TRY(DeviceTree::slow_get_property("/chosen/bootargs"sv, header, fdt)).as_string();
}
}
DeviceTree::DeviceTree const& DeviceTree::get()