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| author | Collin Walling <walling@linux.ibm.com> | 2018-08-31 18:51:19 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2018-10-01 08:51:42 +0200 |
| commit | 67d49d52ae502eaea8858fbcb97e3c2891f78da9 (patch) | |
| tree | 72fe89366897e691286803a123d2d1784bb22606 /Documentation/IRQ-domain.txt | |
| parent | Linux 4.19-rc4 (diff) | |
| download | linux-67d49d52ae502eaea8858fbcb97e3c2891f78da9.tar.xz linux-67d49d52ae502eaea8858fbcb97e3c2891f78da9.zip | |
KVM: s390: set host program identifier
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>
Diffstat (limited to 'Documentation/IRQ-domain.txt')
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