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| author | Fei Li <sherrylf@linux.vnet.ibm.com> | 2017-01-19 19:02:26 +0300 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2017-04-06 14:15:36 +0300 |
| commit | 08fab50da669e5ee5a542592895fcb63be3cd7b1 (patch) | |
| tree | 5a5a6da1eabfa35708d2f96e4c510f2433374052 /arch/s390/kvm | |
| parent | 4e0b1ab72b8af961bcaca9ec1475279c1cd9579c (diff) | |
| download | linux-08fab50da669e5ee5a542592895fcb63be3cd7b1.tar.xz | |
KVM: s390: interface for suppressible I/O adapters
In order to properly implement adapter-interruption suppression, we
need a way for userspace to specify which adapters are subject to
suppression. Let's convert the existing (and unused) 'pad' field into
a 'flags' field and define a flag value for suppressible adapters.
Besides, add documentation for the interface.
Signed-off-by: Fei Li <sherrylf@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index 311eef0df855..dba51ad62570 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -1997,6 +1997,8 @@ static int register_io_adapter(struct kvm_device *dev, adapter->maskable = adapter_info.maskable; adapter->masked = false; adapter->swap = adapter_info.swap; + adapter->suppressible = (adapter_info.flags) & + KVM_S390_ADAPTER_SUPPRESSIBLE; dev->kvm->arch.adapters[adapter->id] = adapter; return 0; |