[PATCH v2 00/19] KVM/arm64: Refactoring the vcpu flags

[Marc Zyngier]

This is a iteration on [1], which aims at making the vcpu flags suck a
bit less.

* From v1 [1]:
  - Rebased onto v5.19-rc1
  - Took the first two patches into kvmarm-fixes, included here for
    completeness
  - Additional patch to move system_supports_fpsimd() outside of
    the run path (Reiji)
  - Expanded on comments (Reiji)
  - New kvm_pend_exception() accessor (Fuad)
  - Various bracketing fixups (Reiji)
  - Some renaming (Reiji, Broonie)
  - Collected RBs, with thanks

[1] https://lore.kernel.org/r/20220528113829.1043361-1-maz@kernel.org

Marc Zyngier (19):
  KVM: arm64: Always start with clearing SVE flag on load
  KVM: arm64: Always start with clearing SME flag on load
  KVM: arm64: Drop FP_FOREIGN_STATE from the hypervisor code
  KVM: arm64: Move FP state ownership from flag to a tristate
  KVM: arm64: Add helpers to manipulate vcpu flags among a set
  KVM: arm64: Add three sets of flags to the vcpu state
  KVM: arm64: Move vcpu configuration flags into their own set
  KVM: arm64: Move vcpu PC/Exception flags to the input flag set
  KVM: arm64: Move vcpu debug/SPE/TRBE flags to the input flag set
  KVM: arm64: Move vcpu SVE/SME flags to the state flag set
  KVM: arm64: Move vcpu ON_UNSUPPORTED_CPU flag to the state flag set
  KVM: arm64: Move vcpu WFIT flag to the state flag set
  KVM: arm64: Kill unused vcpu flags field
  KVM: arm64: Convert vcpu sysregs_loaded_on_cpu to a state flag
  KVM: arm64: Warn when PENDING_EXCEPTION and INCREMENT_PC are set
    together
  KVM: arm64: Add build-time sanity checks for flags
  KVM: arm64: Reduce the size of the vcpu flag members
  KVM: arm64: Document why pause cannot be turned into a flag
  KVM: arm64: Move the handling of !FP outside of the fast path

 arch/arm64/include/asm/kvm_emulate.h       |  11 +-
 arch/arm64/include/asm/kvm_host.h          | 203 +++++++++++++++------
 arch/arm64/kvm/arch_timer.c                |   2 +-
 arch/arm64/kvm/arm.c                       |  12 +-
 arch/arm64/kvm/debug.c                     |  25 ++-
 arch/arm64/kvm/fpsimd.c                    |  37 ++--
 arch/arm64/kvm/handle_exit.c               |   2 +-
 arch/arm64/kvm/hyp/exception.c             |  23 ++-
 arch/arm64/kvm/hyp/include/hyp/debug-sr.h  |   6 +-
 arch/arm64/kvm/hyp/include/hyp/switch.h    |  24 +--
 arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h |   4 +-
 arch/arm64/kvm/hyp/nvhe/debug-sr.c         |   8 +-
 arch/arm64/kvm/hyp/nvhe/switch.c           |   6 +-
 arch/arm64/kvm/hyp/nvhe/sys_regs.c         |   4 +-
 arch/arm64/kvm/hyp/vhe/switch.c            |   4 +-
 arch/arm64/kvm/hyp/vhe/sysreg-sr.c         |   4 +-
 arch/arm64/kvm/inject_fault.c              |  17 +-
 arch/arm64/kvm/reset.c                     |   6 +-
 arch/arm64/kvm/sys_regs.c                  |  12 +-
 19 files changed, 248 insertions(+), 162 deletions(-)

-- 
2.34.1