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KVM: s390: add documentation of KVM_S390_VM_CRYPTO

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Let's properly document KVM_S390_VM_CRYPTO and its attributes.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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David Hildenbrand 2016-01-21 13:45:50 +01:00 • committed by Christian Borntraeger
parent aad3c1d960
commit eaf2b656cf
1 changed files with 33 additions and 0 deletions
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33
Documentation/virtual/kvm/devices/vm.txt
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@ -103,3 +103,36 @@ the POP (u64).
Parameters: address of a buffer in user space to store the data (u64) to Parameters: address of a buffer in user space to store the data (u64) to
Returns: -EFAULT if the given address is not accessible from kernel space Returns: -EFAULT if the given address is not accessible from kernel space
4. GROUP: KVM_S390_VM_CRYPTO
Architectures: s390
4.1. ATTRIBUTE: KVM_S390_VM_CRYPTO_ENABLE_AES_KW (w/o)
Allows user space to enable aes key wrapping, including generating a new
wrapping key.
Parameters: none
Returns: 0
4.2. ATTRIBUTE: KVM_S390_VM_CRYPTO_ENABLE_DEA_KW (w/o)
Allows user space to enable dea key wrapping, including generating a new
wrapping key.
Parameters: none
Returns: 0
4.3. ATTRIBUTE: KVM_S390_VM_CRYPTO_DISABLE_AES_KW (w/o)
Allows user space to disable aes key wrapping, clearing the wrapping key.
Parameters: none
Returns: 0
4.4. ATTRIBUTE: KVM_S390_VM_CRYPTO_DISABLE_DEA_KW (w/o)
Allows user space to disable dea key wrapping, clearing the wrapping key.
Parameters: none
Returns: 0