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Kernel: Move Kernel CommandLine parsing to strongly typed API.

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Previously all of the CommandLine parsing was spread out around the
Kernel. Instead move it all into the Kernel CommandLine class, and
expose a strongly typed API for querying the state of options.
This commit is contained in:
Brian Gianforcaro 2021-03-03 00:51:55 -08:00 • committed by Andreas Kling
parent 74881ac649
commit 84a399de5d
9 changed files with 143 additions and 45 deletions
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22
Kernel/ACPI/Initialize.cpp
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@ -31,33 +31,17 @@
namespace Kernel {
namespace ACPI {
enum class FeatureLevel {
Enabled,
Limited,
Disabled,
};
UNMAP_AFTER_INIT static FeatureLevel determine_feature_level()
{
auto value = kernel_command_line().lookup("acpi").value_or("on");
if (value == "limited")
return FeatureLevel::Limited;
if (value == "off")
return FeatureLevel::Disabled;
return FeatureLevel::Enabled;
}
UNMAP_AFTER_INIT void initialize()
{
auto feature_level = determine_feature_level();
if (feature_level == FeatureLevel::Disabled)
auto feature_level = kernel_command_line().acpi_feature_level();
if (feature_level == AcpiFeatureLevel::Disabled)
return;
auto rsdp = StaticParsing::find_rsdp();
if (!rsdp.has_value())
return;
if (feature_level == FeatureLevel::Enabled)
if (feature_level == AcpiFeatureLevel::Enabled)
Parser::initialize<DynamicParser>(rsdp.value());
else
Parser::initialize<Parser>(rsdp.value());