This patch allocates a physical page for each of the virtqueues and
memcpys to it when receiving a buffer to get a physical, aligned
contiguous buffer as required by the virtio specification.
Co-authored-by: Sahan <sahan.h.fernando@gmail.com>
This patch actually enables virtio queues after configuring them
so the device can use them, it also enables interrupt handling in
VirtIODevice so they are not ignored.
Co-authored-by: Sahan <sahan.h.fernando@gmail.com>
Raw pointers were mostly replaced with smart pointers and references
where appropriate based on kling and smartcomputer7's suggestions :)
Co-authored-by: Sahan <sahan.h.fernando@gmail.com>
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>
Based on pull #3236 by tomuta, this adds helper methods for generic
device initialization, and partily-broken virtqueue helper methods
Co-authored-by: Tom <tomut@yahoo.com>
Co-authored-by: Sahan <sahan.h.fernando@gmail.com>
