KVM: s390: set host program identifier

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A host program identifier (HPID) provides information regarding the
underlying host environment. A level-2 (VM) guest will have an HPID
denoting Linux/KVM, which is set during VCPU setup. A level-3 (VM on a
VM) and beyond guest will have an HPID denoting KVM vSIE, which is set
for all shadow control blocks, overriding the original value of the
HPID.

Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Message-Id: <1535734279-10204-4-git-send-email-walling@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

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Collin Walling 2018-08-31 12:51:19 -04:00 • committed by Christian Borntraeger

parent 7876320f88

commit 67d49d52ae

3 changed files with 9 additions and 1 deletions

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6

arch/s390/include/asm/kvm_host.h

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2

arch/s390/kvm/kvm-s390.c

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2

arch/s390/kvm/vsie.c

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