KVM: s390: Enable DAT support for TPROT handler

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The TPROT instruction can be used to check the accessability of storage
for any kind of logical addresses. So far, our handler only supported
real addresses. This patch now also enables support for addresses that
have to be translated via DAT first. And while we're at it, change the
code to use the common KVM function gfn_to_hva_prot() to check for the
validity and writability of the memory page.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>

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Thomas Huth 2014-02-04 14:48:07 +01:00 • committed by Christian Borntraeger

parent 9fbc02760d

commit a0465f9ae4

3 changed files with 37 additions and 25 deletions

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4

arch/s390/kvm/gaccess.c

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2

arch/s390/kvm/gaccess.h

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56

arch/s390/kvm/priv.c

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