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Re: [PATCH V5 0/2] Virtio support for toolstack on Arm (Was "IOREQ feature (+ virtio-mmio) on Arm")

On 21.05.21 16:16, Oleksandr Tyshchenko wrote:

Hello, all.

I pushed this series in wrong way, so the patches #1 and #2 appeared with the same subject as a cover letter. I have just resent this patch series properly. Please ignore current one. Sorry for the noise.


From: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>

Hello all.

The purpose of this patch series is to add missing virtio-mmio bits to Xen 
toolstack on Arm.
The Virtio support for toolstack [1] was postponed as the main target was to 
upstream IOREQ/DM
support on Arm in the first place. Now, we already have IOREQ support in, so we 
can resume Virtio
enabling work. You can find previous discussion at [2].

Patch series [3] was reworked and rebased on recent "staging branch"
(972ba1d x86/shadow: streamline shadow_get_page_from_l1e()) and tested on
Renesas Salvator-X board + H3 ES3.0 SoC (Arm64) with "updated" virtio-mmio disk 
backend [4]
running in Driver domain and unmodified Linux Guest running on existing
virtio-blk driver (frontend). No issues were observed. Guest domain 
use-cases work properly.

Any feedback/help would be highly appreciated.

[3] https://github.com/otyshchenko1/xen/commits/libxl_virtio
[4] https://github.com/xen-troops/virtio-disk/commits/ioreq_ml3

Julien Grall (1):
   libxl: Introduce basic virtio-mmio support on Arm

Oleksandr Tyshchenko (1):
   libxl: Add support for Virtio disk configuration

  docs/man/xl-disk-configuration.5.pod.in   |  27 +
  tools/include/libxl.h                     |   6 +
  tools/libs/light/libxl_arm.c              | 133 ++++-
  tools/libs/light/libxl_device.c           |  38 +-
  tools/libs/light/libxl_disk.c             |  99 +++-
  tools/libs/light/libxl_types.idl          |   4 +
  tools/libs/light/libxl_types_internal.idl |   1 +
  tools/libs/light/libxl_utils.c            |   2 +
  tools/libs/util/libxlu_disk_l.c           | 881 +++++++++++++++---------------
  tools/libs/util/libxlu_disk_l.h           |   2 +-
  tools/libs/util/libxlu_disk_l.l           |   1 +
  tools/xl/xl_block.c                       |  11 +
  xen/include/public/arch-arm.h             |   7 +
  13 files changed, 764 insertions(+), 448 deletions(-)


Oleksandr Tyshchenko



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