tree ff59b2d92cbe8533ea5848ffb61cd46391632282
parent f30985aafe09fc919cc05eca3fd213e6159f1797
author Matt Sandy <msandy@google.com> 1554226962 -0700
committer Matt Sandy <msandy@google.com> 1562622781 -0700

[virtio-magma] make virtio-magma its own device

This change moves virtio-magma into its own device, instead of a sub-
device of virtio-wayland. It also adds support for the full magma API
sufficient to support stock Vulkan. It also extends virtio-wayland to
offer file descriptors for existing vfds that virtio-magma can use to
wrap exported buffers. This allows for zero-copy swap chain rendering
e.g. using the VK_KHR_wayland_surface vulkan extension.

Test: ran virtmagma_unit_tests in biscotti_guest
      ran virtmagma_vulkan_unit_tests in biscotti_guest
      ran wayland_swapchain_test in biscotti_guest
Change-Id: I1933e45d486d4d74c512620492d37ecdac7e4049