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

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>

1 files changed, 6 insertions, 0 deletions

diff --git a/Kernel/VirtIO/VirtIO.cpp b/Kernel/VirtIO/VirtIO.cpp
index 637b079658..aebd3740af 100644
--- a/Kernel/VirtIO/VirtIO.cpp
+++ b/Kernel/VirtIO/VirtIO.cpp
@@ -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;
+        }
     });
 }