Oleksandr Gabrylchuk
02fab4cf9e
Add support of GUEST_VRAM type of blob. These are dedicated heap memory allocations required for vk support on hypervisors that don't support runtime injections of host memory into guest physical address space. The flow of usage: 1) Host VM reserves dedicated heap memory 2) Device get info about memory reservations and report it to guest using mmio registers 3) Guest virtio-gpu driver on starts checks mmio registers for physical address and length of reserved region. Then it reserves it in guest. 4) On each call of vkAllocateMemory() guest driver gets chunk of required memory and send it to host using sg list. It uses one sg entry for 1 blob call. Heap is managed on guest using drm memory manager (drm_mm). Signed-off-by: Oleksandr.Gabrylchuk <Oleksandr.Gabrylchuk@opensynergy.com> Signed-off-by: Andrii Pauk <Andrii.Pauk@opensynergy.com> Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org> Reviewed-by: Chia-I Wu <olvaffe@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14536>
`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library ====================================================== Source ------ This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported. Build & install --------------- You can find more information in our documentation (`docs/install.rst <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_): .. code-block:: sh $ mkdir build $ cd build $ meson .. $ sudo ninja install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `OFTC's #dri-devel <irc://irc.oftc.net/dri-devel>`_, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out `Who's Who on IRC <https://dri.freedesktop.org/wiki/WhosWho/>`_. The next best option is to ask your question in an email to the mailing lists: `mesa-dev\@lists.freedesktop.org <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_ Bug reports ----------- If you think something isn't working properly, please file a bug report (`docs/bugs.rst <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.