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Kernel: Ensure SMP mode is not enabled if IOAPIC mode is disabled

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We need to use the IOAPIC in SMP mode, so if the user requested to
disable it, we can't enable SMP mode either.
This commit is contained in:
Liav A 2021-12-19 21:30:36 +02:00 • committed by Brian Gianforcaro
parent f11fbb6415
commit 30659040ed
3 changed files with 13 additions and 1 deletions
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9
Kernel/CommandLine.cpp
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@ -108,9 +108,18 @@ UNMAP_AFTER_INIT bool CommandLine::is_ide_enabled() const
UNMAP_AFTER_INIT bool CommandLine::is_smp_enabled() const
{
// Note: We can't enable SMP mode without enabling the IOAPIC.
if (!is_ioapic_enabled())
return false;
return lookup("smp"sv).value_or("off"sv) == "on"sv;
}
UNMAP_AFTER_INIT bool CommandLine::is_smp_enabled_without_ioapic_enabled() const
{
auto smp_enabled = lookup("smp"sv).value_or("off"sv) == "on"sv;
return smp_enabled && !is_ioapic_enabled();
}
UNMAP_AFTER_INIT bool CommandLine::is_ioapic_enabled() const
{
auto value = lookup("enable_ioapic"sv).value_or("on"sv);