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| author |   Cornelia Huck <cornelia.huck@de.ibm.com> | 2012-12-20 15:32:10 +0100 |
|---|---|---|
| committer |   Marcelo Tosatti <mtosatti@redhat.com> | 2013-01-07 19:53:41 -0200 |
| commit | f379aae558b8daff0f7a1c5fc225af5d35c741f7 (patch) | |
| tree | 26f66b7da5a2883cc4049e838f4a1fb75ef604aa /Documentation/virtual | |
| parent | KVM: s390: Add support for machine checks. (diff) | |
| download | linux-dev-f379aae558b8daff0f7a1c5fc225af5d35c741f7.tar.xz linux-dev-f379aae558b8daff0f7a1c5fc225af5d35c741f7.zip | |
KVM: s390: In-kernel handling of I/O instructions.
Explicitely catch all channel I/O related instructions intercepts
in the kernel and set condition code 3 for them.
This paves the way for properly handling these instructions later
on.
Note: This is not architecture compliant (the previous code wasn't
either) since setting cc 3 is not the correct thing to do for some
of these instructions. For Linux guests, however, it still has the
intended effect of stopping css probing.
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'Documentation/virtual')
0 files changed, 0 insertions, 0 deletions