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1bab1c02af
The STFLE bit 147 indicates whether the ESSA no-DAT operation code is valid, the bit is not normally provided to the host; the host is instead provided with an SCLP bit that indicates whether guests can support the feature. This patch: * enables the STFLE bit in the guest if the corresponding SCLP bit is present in the host. * adds support for migrating the no-DAT bit in the PGSTEs * fixes the software interpretation of the ESSA instruction that is used when migrating, both for the new operation code and for the old "set stable", as per specifications. Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
21 lines
447 B
C
21 lines
447 B
C
/*
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* Copyright IBM Corp. 2017
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* Author(s): Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
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*/
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#ifndef PAGE_STATES_H
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#define PAGE_STATES_H
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#define ESSA_GET_STATE 0
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#define ESSA_SET_STABLE 1
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#define ESSA_SET_UNUSED 2
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#define ESSA_SET_VOLATILE 3
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#define ESSA_SET_POT_VOLATILE 4
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#define ESSA_SET_STABLE_RESIDENT 5
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#define ESSA_SET_STABLE_IF_RESIDENT 6
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#define ESSA_SET_STABLE_NODAT 7
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#define ESSA_MAX ESSA_SET_STABLE_NODAT
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#endif
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