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Kernel: Add a kernel boot parameter to force PIO mode

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Also added an option in the run script to force PIO operation mode with
the IDE controller.
In addition, we're no longer limited to PIIX3 and PIIX4 chipsets for DMA
This commit is contained in:
supercomputer7
2019-11-13 19:29:16 +02:00
committed by Andreas Kling
parent d76fb99403
commit 4fe2ee0221
5 changed files with 32 additions and 23 deletions
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3
Kernel/init.cpp
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@@ -67,6 +67,7 @@ VFS* vfs;
auto dev_ptmx = make<PTYMultiplexer>();
bool text_debug = KParams::the().has("text_debug");
bool force_pio = KParams::the().has("force_pio");
auto root = KParams::the().get("root");
if (root.is_empty()) {
@@ -78,7 +79,7 @@ VFS* vfs;
hang();
}
auto pata0 = PATAChannel::create(PATAChannel::ChannelType::Primary);
auto pata0 = PATAChannel::create(PATAChannel::ChannelType::Primary, force_pio);
NonnullRefPtr<DiskDevice> root_dev = *pata0->master_device();
root = root.substring(strlen("/dev/hda"), root.length() - strlen("/dev/hda"));