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Kernel: Add base support for VirtConsole (VirtIO based consoles)

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Based on pull #3236 by tomuta, this is still very much WIP but will
eventually allow us to switch from the considerably slower method of
knocking on port 0xe9 for each character

Co-authored-by: Tom <tomut@yahoo.com>
Co-authored-by: Sahan <sahan.h.fernando@gmail.com>
This commit is contained in:
Idan Horowitz 2021-01-02 19:56:36 +02:00 • committed by Andreas Kling
parent 62303d46d1
commit ea4c9efbb9
4 changed files with 191 additions and 0 deletions
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6
Kernel/VirtIO/VirtIO.cpp
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@ -25,6 +25,7 @@
*/
#include <Kernel/VirtIO/VirtIO.h>
#include <Kernel/VirtIO/VirtIOConsole.h>
namespace Kernel {
@ -35,6 +36,11 @@ void VirtIO::detect()
return;
if (id.vendor_id != VIRTIO_PCI_VENDOR_ID)
return;
switch (id.device_id) {
case VIRTIO_CONSOLE_PCI_DEVICE_ID:
[[maybe_unused]] auto& unused = adopt(*new VirtIOConsole(address)).leak_ref();
break;
}
});
}