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Kernel/Graphics: Don't try to enumerate PCI adapters if PCI is disabled

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If there's no PCI bus, then it's safe to assume that the x86 machine we
run on supports VGA text mode console output with an ISA VGA adapter.
If this is the case, we just instantiate a ISAVGAAdapter object that
assumes this situation and allows us to boot into VGA text mode console.
This commit is contained in:
Liav A 2022-01-21 16:15:46 +02:00 • committed by Andreas Kling
parent 15315be55c
commit fafa339264
10 changed files with 197 additions and 72 deletions
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2
Kernel/Graphics/Intel/NativeGraphicsAdapter.cpp
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@ -178,7 +178,7 @@ Optional<IntelNativeGraphicsAdapter::PLLSettings> IntelNativeGraphicsAdapter::cr
}
IntelNativeGraphicsAdapter::IntelNativeGraphicsAdapter(PCI::Address address)
: VGACompatibleAdapter(address)
: PCIVGACompatibleAdapter(address)
, m_registers(PCI::get_BAR0(address) & 0xfffffffc)
, m_framebuffer_addr(PCI::get_BAR2(address) & 0xfffffffc)
{