[PATCH v3 0/2] KVM: s390: Fix AR parameter in ioctl

[Eric Farman <farman@linux.ibm.com>]

Hi Christian, Janosch, Heiko,

Here is a new version for the AR/MEM_OP issue I'm attempting to address.
(Thank you, Heiko, for the offline chat!)

Changes:
v3:
	[HC] Drop the AR swap in MEM_OP path
	[HC] Remove WARN and don't do save_access_regs on !bool
v2: https://lore.kernel.org/r/20240215205344.2562020-1-farman@linux.ibm.com/
	[HC] Add a flag to indicate access registers have been loaded
v1: https://lore.kernel.org/r/20240209204539.4150550-1-farman@linux.ibm.com/
	[CB] Store access registers around memop ioctl
	[JF] Add a kernel selftest 
RFC: https://lore.kernel.org/r/20240131205832.2179029-1-farman@linux.ibm.com/

Eric Farman (2):
  KVM: s390: fix access register usage in ioctls
  KVM: s390: selftests: memop: add a simple AR test

 arch/s390/include/asm/kvm_host.h          |  1 +
 arch/s390/kvm/gaccess.c                   |  3 ++-
 arch/s390/kvm/kvm-s390.c                  |  3 +++
 tools/testing/selftests/kvm/s390x/memop.c | 28 +++++++++++++++++++++++
 4 files changed, 34 insertions(+), 1 deletion(-)

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2.40.1