[PULL 00/27] Enable PV backends with Xen/KVM emulation

[David Woodhouse <dwmw2@xxxxxxxxxxxxx>]

The following changes since commit 9832009d9dd2386664c15cc70f6e6bfe062be8bd:

  Merge tag 'pull-riscv-to-apply-20230306' of 
https://gitlab.com/palmer-dabbelt/qemu into staging (2023-03-07 12:53:00 +0000)

are available in the Git repository at:

  git://git.infradead.org/users/dwmw2/qemu.git refs/tags/xenfv-2 

for you to fetch changes up to 154eac37190c4d80d29b09c226abd899e397530f:

  docs: Update Xen-on-KVM documentation for PV disk support (2023-03-07 
17:04:30 +0000)


Tested-by: Paul Durrant <paul@xxxxxxx>
... on real Xen (master branch, 4.18) with a Debian guest.

----------------------------------------------------------------
David Woodhouse (23):
      hw/xen: Add xenstore wire implementation and implementation stubs
      hw/xen: Add basic XenStore tree walk and write/read/directory support
      hw/xen: Implement XenStore watches
      hw/xen: Implement XenStore transactions
      hw/xen: Watches on XenStore transactions
      hw/xen: Implement core serialize/deserialize methods for xenstore_impl
      hw/xen: Add evtchn operations to allow redirection to internal emulation
      hw/xen: Add gnttab operations to allow redirection to internal emulation
      hw/xen: Pass grant ref to gnttab unmap operation
      hw/xen: Add foreignmem operations to allow redirection to internal 
emulation
      hw/xen: Move xenstore_store_pv_console_info to xen_console.c
      hw/xen: Use XEN_PAGE_SIZE in PV backend drivers
      hw/xen: Rename xen_common.h to xen_native.h
      hw/xen: Build PV backend drivers for CONFIG_XEN_BUS
      hw/xen: Only advertise ring-page-order for xen-block if gnttab supports it
      hw/xen: Hook up emulated implementation for event channel operations
      hw/xen: Add emulated implementation of grant table operations
      hw/xen: Add emulated implementation of XenStore operations
      hw/xen: Map guest XENSTORE_PFN grant in emulated Xenstore
      hw/xen: Implement soft reset for emulated gnttab
      i386/xen: Initialize Xen backends from pc_basic_device_init() for 
emulation
      MAINTAINERS: Add entry for Xen on KVM emulation
      docs: Update Xen-on-KVM documentation for PV disk support

Paul Durrant (4):
      hw/xen: Implement XenStore permissions
      hw/xen: Create initial XenStore nodes
      hw/xen: Add xenstore operations to allow redirection to internal emulation
      hw/xen: Avoid crash when backend watch fires too early

 MAINTAINERS                                   |    9 +
 accel/xen/xen-all.c                           |   69 +-
 docs/system/i386/xen.rst                      |   30 +-
 hw/9pfs/meson.build                           |    2 +-
 hw/9pfs/xen-9p-backend.c                      |   32 +-
 hw/block/dataplane/meson.build                |    2 +-
 hw/block/dataplane/xen-block.c                |   12 +-
 hw/block/meson.build                          |    2 +-
 hw/block/xen-block.c                          |   12 +-
 hw/char/meson.build                           |    2 +-
 hw/char/xen_console.c                         |   57 +-
 hw/display/meson.build                        |    2 +-
 hw/display/xenfb.c                            |   32 +-
 hw/i386/kvm/meson.build                       |    1 +
 hw/i386/kvm/trace-events                      |   15 +
 hw/i386/kvm/xen_evtchn.c                      |   15 +
 hw/i386/kvm/xen_gnttab.c                      |  325 ++++-
 hw/i386/kvm/xen_gnttab.h                      |    1 +
 hw/i386/kvm/xen_xenstore.c                    | 1251 +++++++++++++++-
 hw/i386/kvm/xenstore_impl.c                   | 1927 +++++++++++++++++++++++++
 hw/i386/kvm/xenstore_impl.h                   |   63 +
 hw/i386/pc.c                                  |    7 +
 hw/i386/pc_piix.c                             |    4 +-
 hw/i386/xen/xen-hvm.c                         |   38 +-
 hw/i386/xen/xen-mapcache.c                    |    2 +-
 hw/i386/xen/xen_platform.c                    |    7 +-
 hw/net/xen_nic.c                              |   25 +-
 hw/usb/meson.build                            |    2 +-
 hw/usb/xen-usb.c                              |   29 +-
 hw/xen/meson.build                            |    6 +-
 hw/xen/trace-events                           |    2 +-
 hw/xen/xen-bus-helper.c                       |   62 +-
 hw/xen/xen-bus.c                              |  411 +-----
 hw/xen/xen-legacy-backend.c                   |  254 +---
 hw/xen/xen-operations.c                       |  478 ++++++
 hw/xen/xen_devconfig.c                        |    4 +-
 hw/xen/xen_pt.c                               |    2 +-
 hw/xen/xen_pt.h                               |    2 +-
 hw/xen/xen_pt_config_init.c                   |    2 +-
 hw/xen/xen_pt_graphics.c                      |    1 -
 hw/xen/xen_pt_msi.c                           |    4 +-
 hw/xen/xen_pvdev.c                            |   63 +-
 include/hw/xen/xen-bus-helper.h               |   26 +-
 include/hw/xen/xen-bus.h                      |   21 +-
 include/hw/xen/xen-legacy-backend.h           |   24 +-
 include/hw/xen/xen.h                          |   24 +-
 include/hw/xen/xen_backend_ops.h              |  408 ++++++
 include/hw/xen/{xen_common.h => xen_native.h} |   75 +-
 include/hw/xen/xen_pvdev.h                    |    6 +-
 softmmu/globals.c                             |    4 +
 target/i386/kvm/xen-emu.c                     |    5 +
 tests/unit/meson.build                        |    1 +
 tests/unit/test-xs-node.c                     |  871 +++++++++++
 53 files changed, 5804 insertions(+), 927 deletions(-)
 create mode 100644 hw/i386/kvm/xenstore_impl.c
 create mode 100644 hw/i386/kvm/xenstore_impl.h
 create mode 100644 hw/xen/xen-operations.c
 create mode 100644 include/hw/xen/xen_backend_ops.h
 rename include/hw/xen/{xen_common.h => xen_native.h} (89%)
 create mode 100644 tests/unit/test-xs-node.c