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Kernel: Scan ACPI memory ranges for the RSDP table

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On some systems the ACPI RSDP table may be located in ACPI reserved
memory ranges rather than in the EBDA or BIOS areas.
This commit is contained in:
Tom 2022-01-02 16:27:21 -07:00 • committed by Linus Groh
parent 190572b714
commit 10efbfb09e
3 changed files with 35 additions and 1 deletions
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11
Kernel/Memory/MemoryManager.cpp
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@ -174,6 +174,17 @@ UNMAP_AFTER_INIT void MemoryManager::protect_ksyms_after_init()
dmesgln("Write-protected kernel symbols after init.");
}
IterationDecision MemoryManager::for_each_physical_memory_range(Function<IterationDecision(PhysicalMemoryRange const&)> callback)
{
VERIFY(!m_physical_memory_ranges.is_empty());
for (auto& current_range : m_physical_memory_ranges) {
IterationDecision decision = callback(current_range);
if (decision != IterationDecision::Continue)
return decision;
}
return IterationDecision::Continue;
}
UNMAP_AFTER_INIT void MemoryManager::register_reserved_ranges()
{
VERIFY(!m_physical_memory_ranges.is_empty());