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| author |   Alexander Yarygin <yarygin@linux.vnet.ibm.com> | 2015-03-09 14:17:25 +0300 |
|---|---|---|
| committer |   Christian Borntraeger <borntraeger@de.ibm.com> | 2015-03-17 16:25:57 +0100 |
| commit | 664b4973537068402954bee6e2959b858f263a6f (patch) | |
| tree | 53ad45b61cd6a279d0c920dd807dc43fd81e8f2d /arch/s390/kvm/gaccess.h | |
| parent | KVM: s390: Optimize paths where get_vcpu_asce() is invoked (diff) | |
| download | linux-dev-664b4973537068402954bee6e2959b858f263a6f.tar.xz linux-dev-664b4973537068402954bee6e2959b858f263a6f.zip | |
KVM: s390: Add access register mode
Access register mode is one of the modes that control dynamic address
translation. In this mode the address space is specified by values of
the access registers. The effective address-space-control element is
obtained from the result of the access register translation. See
the "Access-Register Introduction" section of the chapter 5 "Program
Execution" in "Principles of Operations" for more details.
Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/gaccess.h')
| -rw-r--r-- | arch/s390/kvm/gaccess.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h index 7c2866bfa63f..835e557dabf4 100644 --- a/arch/s390/kvm/gaccess.h +++ b/arch/s390/kvm/gaccess.h @@ -177,8 +177,7 @@ int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra, * If DAT is off data will be copied to guest real or absolute memory. * If DAT is on data will be copied to the address space as specified by * the address space bits of the PSW: - * Primary, secondory or home space (access register mode is currently not - * implemented). + * Primary, secondary, home space or access register mode. * The addressing mode of the PSW is also inspected, so that address wrap * around is taken into account for 24-, 31- and 64-bit addressing mode, * if the to be copied data crosses page boundaries in guest address space. |