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Kernel: Remove "non-operational" ACPI parser state

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If we don't support ACPI, just don't instantiate an ACPI parser.
This is way less confusing than having a special parser class whose
only purpose is to do nothing.

We now search for the RSDP in ACPI::initialize() instead of letting
the parser constructor do it. This allows us to defer the decision
to create a parser until we're sure we can make a useful one.
This commit is contained in:
Andreas Kling
2020-04-09 14:31:47 +02:00
parent d95362d8cd
commit 4644217094
13 changed files with 46 additions and 111 deletions
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18
Kernel/ACPI/ACPIStaticParser.cpp
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@@ -324,26 +324,10 @@ void StaticParser::locate_main_system_description_table()
}
}
StaticParser::StaticParser()
: Parser(true)
, m_rsdp(StaticParsing::search_rsdp())
{
if (!m_rsdp.is_null()) {
klog() << "ACPI: Using RSDP @ " << m_rsdp;
m_operable = true;
locate_static_data();
} else {
m_operable = false;
klog() << "ACPI: Disabled, due to RSDP being absent";
}
}
StaticParser::StaticParser(PhysicalAddress rsdp)
: Parser(true)
, m_rsdp(rsdp)
: m_rsdp(rsdp)
{
klog() << "ACPI: Using RSDP @ " << rsdp;
m_operable = true;
locate_static_data();
}