To support efforts to generalize handling of writable System ID Registers
[1] this series addresses the demuxed registers that are kept outside of
ARMISARegisters namely CSSELR_EL1.

CSSELR_EL1 is moved within ARMISARegisters and accessors to retrieve
and set the demuxed values are provided. Initial values are gathered via
the usual KVM_GET_ONE_REG ioctl.

V5 of this series was posted here:
https://lore.kernel.org/qemu-devel/20260909144151.26803-1-sebott@redhat.com/

[1] https://lore.kernel.org/qemu-arm/20260616132625.1732031-1-eric.auger@redhat.com/

Changes V5->V6:
* incorporated suggestions from Peter

Changes V4->V5:
* changed diffstat format
* changed cover letter

Changes V3->V4:
* added R-B from Eric
* incorporated suggestions from Eric


Cornelia Huck (3):
  arm: handle demuxed ID registers
  arm: handle CCSIDR_EL1 as a demuxed register
  arm/kvm: get demuxed ID registers from kvm

 target/arm/cpu-sysregs.h     |  9 +++++
 target/arm/cpu.h             | 28 +++++++++++----
 target/arm/cpu-sysregs.h.inc |  1 +
 hw/arm/virt.c                | 19 ++++------
 hw/intc/armv7m_nvic.c        |  2 +-
 target/arm/cpu-max.c         |  6 ++--
 target/arm/cpu64.c           | 14 ++++++--
 target/arm/helper.c          |  2 +-
 target/arm/kvm.c             | 42 ++++++++++++++++++++++
 target/arm/tcg/cpu32.c       | 26 +++++++-------
 target/arm/tcg/cpu64.c       | 68 ++++++++++++++++++------------------
 11 files changed, 144 insertions(+), 73 deletions(-)

-- 
2.55.0