Hi Janosch,
Here is a new (final?) version for the AR/MEM_OP issue I'm attempting to address. Hopefully they can be picked up to whatever tree makes sense.
Changes: v4: [HC,CB,NSG] Add tags (thank you!) [NSG] Add commentary v3: https://lore.kernel.org/r/20240216213616.3819805-1-farman@linux.ibm.com/ [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 | 2 ++ arch/s390/kvm/gaccess.c | 3 ++- arch/s390/kvm/kvm-s390.c | 3 +++ tools/testing/selftests/kvm/s390x/memop.c | 31 +++++++++++++++++++++++ 4 files changed, 38 insertions(+), 1 deletion(-)