Documentation: KVM: s390: Describe KVM_S390_MEMOP_F_CMPXCHG

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Describe the semantics of the new KVM_S390_MEMOP_F_CMPXCHG flag for
absolute vm write memops which allows user space to perform (storage key
checked) cmpxchg operations on guest memory.

Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/r/20230206164602.138068-14-scgl@linux.ibm.com
Message-Id: <20230206164602.138068-14-scgl@linux.ibm.com>
[frankja@de.ibm.com: Removed a line from an earlier version]
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>

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Janis Schoetterl-Glausch 2023-02-06 17:46:01 +01:00 • committed by Janosch Frank

parent 3fd49805d1

commit a7b0417328

1 changed files with 25 additions and 3 deletions

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Documentation/virt/kvm/api.rst

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