[PATCH v6 00/18] s390x: Protected Virtualization support

[Janosch Frank]

Most of the QEMU changes for PV are related to the new IPL type with
subcodes 8 - 10 and the execution of the necessary Ultravisor calls to
IPL secure guests. Note that we can only boot into secure mode from
normal mode, i.e. stfle 161 is not active in secure mode.

The other changes related to data gathering for emulation and
disabling addressing checks in secure mode, as well as CPU resets.

v6:
        * diag308 rc numbers were changed by architecture
        * IPL pv block received one more reserved field by architecture
        * Officially added the bios patch to the series
        * Dropped picked constant rename patch

v5:
        * Moved docs into docs/system
        * Some more enable/disable changes
        * Moved enablement/disablement of pv in separate functions
        * Some review fixes

v4:
        * Sync with KVM changes
        * Review changes

V3:
        * Use dedicated functions to access SIDA
        * Smaller cleanups and segfault fixes
        * Error reporting for Ultravisor calls
        * Inject of RC of diag308 subcode 10 fails

V2:
        * Split out cleanups
        * Internal PV state tracking
        * Review feedback

Christian Borntraeger (1):
  s390x: Add unpack facility feature to GA1

Janosch Frank (17):
  Sync pv
  s390x: protvirt: Add diag308 subcodes 8 - 10
  s390x: protvirt: Support unpack facility
  s390x: protvirt: Add migration blocker
  s390x: protvirt: Handle diag 308 subcodes 0,1,3,4
  s390x: protvirt: Inhibit balloon when switching to protected mode
  s390x: protvirt: KVM intercept changes
  s390x: Add SIDA memory ops
  s390x: protvirt: Move STSI data over SIDAD
  s390x: protvirt: SCLP interpretation
  s390x: protvirt: Set guest IPL PSW
  s390x: protvirt: Move diag 308 data over SIDAD
  s390x: protvirt: Disable address checks for PV guest IO emulation
  s390x: protvirt: Move IO control structures over SIDA
  s390x: protvirt: Handle SIGP store status correctly
  docs: Add protvirt docs
  pc-bios: s390x: Save iplb location in lowcore

 docs/system/index.rst               |   1 +
 docs/system/protvirt.rst            |  57 +++++++++++
 hw/s390x/Makefile.objs              |   1 +
 hw/s390x/ipl.c                      |  80 ++++++++++++++-
 hw/s390x/ipl.h                      |  34 +++++++
 hw/s390x/pv.c                       | 106 ++++++++++++++++++++
 hw/s390x/pv.h                       |  34 +++++++
 hw/s390x/s390-virtio-ccw.c          | 145 +++++++++++++++++++++++++++-
 hw/s390x/sclp.c                     |  17 ++++
 include/hw/s390x/s390-virtio-ccw.h  |   1 +
 include/hw/s390x/sclp.h             |   2 +
 linux-headers/linux/kvm.h           |  45 ++++++++-
 pc-bios/s390-ccw/jump2ipl.c         |   1 +
 pc-bios/s390-ccw/main.c             |   8 +-
 pc-bios/s390-ccw/netmain.c          |   1 +
 pc-bios/s390-ccw/s390-arch.h        |  10 +-
 pc-bios/s390-ccw/s390-ccw.h         |   1 +
 target/s390x/cpu.c                  |  27 ++++--
 target/s390x/cpu.h                  |   8 +-
 target/s390x/cpu_features_def.inc.h |   1 +
 target/s390x/diag.c                 |  60 ++++++++++--
 target/s390x/gen-features.c         |   1 +
 target/s390x/helper.c               |   4 +
 target/s390x/ioinst.c               | 113 +++++++++++++++-------
 target/s390x/kvm.c                  |  54 ++++++++++-
 target/s390x/kvm_s390x.h            |   2 +
 target/s390x/mmu_helper.c           |  14 +++
 target/s390x/sigp.c                 |   1 +
 28 files changed, 762 insertions(+), 67 deletions(-)
 create mode 100644 docs/system/protvirt.rst
 create mode 100644 hw/s390x/pv.c
 create mode 100644 hw/s390x/pv.h

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2.20.1