Re: [PULL 00/15] Host Memory Backends and Memory devices queue 2024-12-18

[Stefan Hajnoczi]

On Wed, 18 Dec 2024 at 05:55, David Hildenbrand <david@redhat.com> wrote:
>
> The following changes since commit 8032c78e556cd0baec111740a6c636863f9bd7c8:
>
>   Merge tag 'firmware-20241216-pull-request' of 
> https://gitlab.com/kraxel/qemu into staging (2024-12-16 14:20:33 -0500)
>
> are available in the Git repository at:
>
>   https://github.com/davidhildenbrand/qemu.git tags/mem-2024-12-18
>
> for you to fetch changes up to eb5c5f1ab479e9311d8e513e3eeafaf30f2b25b3:
>
>   s390x: virtio-mem support (2024-12-18 09:50:05 +0100)
>
> ----------------------------------------------------------------
> Hi,
>
> "Host Memory Backends" and "Memory devices" queue ("mem"):
> - Fixup handling of virtio-mem unplug during system resets, as
>   preparation for s390x support (especially kdump in the Linux guest)
> - virtio-mem support for s390x
>
> ----------------------------------------------------------------
> David Hildenbrand (15):
>       virtio-mem: unplug memory only during system resets, not device resets
>       s390x/s390-virtio-ccw: don't crash on weird RAM sizes
>       s390x/s390-virtio-hcall: remove hypercall registration mechanism
>       s390x/s390-virtio-hcall: prepare for more diag500 hypercalls
>       s390x: rename s390-virtio-hcall* to s390-hypercall*
>       s390x/s390-virtio-ccw: move setting the maximum guest size from sclp to 
> machine code
>       s390x: introduce s390_get_memory_limit()
>       s390x/s390-hypercall: introduce DIAG500 STORAGE_LIMIT
>       s390x/s390-stattrib-kvm: prepare for memory devices and sparse memory 
> layouts
>       s390x/s390-skeys: prepare for memory devices
>       s390x/s390-virtio-ccw: prepare for memory devices
>       s390x/pv: prepare for memory devices
>       s390x: remember the maximum page size
>       s390x/virtio-ccw: add support for virtio based memory devices
>       s390x: virtio-mem support

Please take a look at the following s390x-related CI failures:

https://gitlab.com/qemu-project/qemu/-/jobs/8679972861
https://gitlab.com/qemu-project/qemu/-/jobs/8679972809
https://gitlab.com/qemu-project/qemu/-/jobs/8679972809
https://gitlab.com/qemu-project/qemu/-/jobs/8679972912
https://gitlab.com/qemu-project/qemu/-/jobs/8679972894
https://gitlab.com/qemu-project/qemu/-/jobs/8679972931

If you find that this pull request caused the issue, please send a new
revision of the pull request. Thanks!

Stefan

>
>  MAINTAINERS                        |   5 +
>  hw/s390x/Kconfig                   |   1 +
>  hw/s390x/meson.build               |   6 +-
>  hw/s390x/s390-hypercall.c          |  85 ++++++++++++++
>  hw/s390x/s390-hypercall.h          |  25 ++++
>  hw/s390x/s390-skeys.c              |   6 +-
>  hw/s390x/s390-stattrib-kvm.c       |  67 +++++++----
>  hw/s390x/s390-virtio-ccw.c         | 165 ++++++++++++++++++---------
>  hw/s390x/s390-virtio-hcall.c       |  41 -------
>  hw/s390x/s390-virtio-hcall.h       |  25 ----
>  hw/s390x/sclp.c                    |  17 +--
>  hw/s390x/virtio-ccw-md-stubs.c     |  24 ++++
>  hw/s390x/virtio-ccw-md.c           | 153 +++++++++++++++++++++++++
>  hw/s390x/virtio-ccw-md.h           |  44 ++++++++
>  hw/s390x/virtio-ccw-mem.c          | 226 
> +++++++++++++++++++++++++++++++++++++
>  hw/s390x/virtio-ccw-mem.h          |  34 ++++++
>  hw/virtio/Kconfig                  |   1 +
>  hw/virtio/virtio-mem.c             | 107 ++++++++++++------
>  include/hw/s390x/s390-virtio-ccw.h |   4 +
>  include/hw/virtio/virtio-mem.h     |  13 ++-
>  target/s390x/cpu-sysemu.c          |  15 ---
>  target/s390x/cpu.h                 |   2 -
>  target/s390x/kvm/kvm.c             |  18 +--
>  target/s390x/kvm/pv.c              |   2 +-
>  target/s390x/tcg/misc_helper.c     |   7 +-
>  25 files changed, 866 insertions(+), 227 deletions(-)
>  create mode 100644 hw/s390x/s390-hypercall.c
>  create mode 100644 hw/s390x/s390-hypercall.h
>  delete mode 100644 hw/s390x/s390-virtio-hcall.c
>  delete mode 100644 hw/s390x/s390-virtio-hcall.h
>  create mode 100644 hw/s390x/virtio-ccw-md-stubs.c
>  create mode 100644 hw/s390x/virtio-ccw-md.c
>  create mode 100644 hw/s390x/virtio-ccw-md.h
>  create mode 100644 hw/s390x/virtio-ccw-mem.c
>  create mode 100644 hw/s390x/virtio-ccw-mem.h
> --
> 2.47.1
>
>