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| author |   Michael S. Tsirkin <mst@redhat.com> | 2013-02-28 12:33:16 +0100 |
|---|---|---|
| committer |   Marcelo Tosatti <mtosatti@redhat.com> | 2013-03-05 19:12:09 -0300 |
| commit | 07e169335ff0570c6e67b5ccf74d793f00ab0834 (patch) | |
| tree | f96290e4e141305498fe5cb97a9efffc958c0d7a /arch/s390 | |
| parent | KVM: nVMX: Fix switching of debug state (diff) | |
| download | linux-dev-07e169335ff0570c6e67b5ccf74d793f00ab0834.tar.xz linux-dev-07e169335ff0570c6e67b5ccf74d793f00ab0834.zip | |
virtio_ccw: pass a cookie value to kvm hypercall
Lookups by channel/vq pair on host during virtio notifications might be
expensive. Interpret hypercall return value as a cookie which host can
use to do device lookups for the next notification more efficiently.
[CH: Fix line > 80 chars]
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/s390')
0 files changed, 0 insertions, 0 deletions