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authorVasily Gorbik <gor@linux.ibm.com>2019-10-23 14:56:39 +0300
committerChristian Borntraeger <borntraeger@de.ibm.com>2020-02-27 21:44:40 +0300
commit29d37e5b82f3e96dd648167657d5a0e0111ce877 (patch)
treedea4d0fedbb0471918625eb77e57bf4eb41c9921 /arch/s390/include/asm/page.h
parentecdc5d842bb3c166c3d549e52ba91a3955b257f2 (diff)
downloadlinux-29d37e5b82f3e96dd648167657d5a0e0111ce877.tar.xz
s390/protvirt: add ultravisor initialization
Before being able to host protected virtual machines, donate some of the memory to the ultravisor. Besides that the ultravisor might impose addressing limitations for memory used to back protected VM storage. Treat that limit as protected virtualization host's virtual memory limit. Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> [borntraeger@de.ibm.com: patch merging, splitting, fixing] Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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