KVM: s390: adapter interrupt sources

Add a new interface to register/deregister sources of adapter interrupts
identified by an unique id via the flic. Adapters may also be maskable
and carry a list of pinned pages.

These adapters will be used by irq routing later.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h
index 2f0ade24f96a..c003c6a73b1e 100644
--- a/arch/s390/include/uapi/asm/kvm.h
+++ b/arch/s390/include/uapi/asm/kvm.h
@@ -22,6 +22,8 @@
 #define KVM_DEV_FLIC_CLEAR_IRQS         3
 #define KVM_DEV_FLIC_APF_ENABLE         4
 #define KVM_DEV_FLIC_APF_DISABLE_WAIT   5
+#define KVM_DEV_FLIC_ADAPTER_REGISTER   6
+#define KVM_DEV_FLIC_ADAPTER_MODIFY     7
 /*
  * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
  * as well as up  to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
@@ -32,6 +34,26 @@
 #define KVM_S390_MAX_FLOAT_IRQS 266250
 #define KVM_S390_FLIC_MAX_BUFFER        0x2000000
 
+struct kvm_s390_io_adapter {
+        __u32 id;
+        __u8 isc;
+        __u8 maskable;
+        __u8 swap;
+        __u8 pad;
+};
+
+#define KVM_S390_IO_ADAPTER_MASK 1
+#define KVM_S390_IO_ADAPTER_MAP 2
+#define KVM_S390_IO_ADAPTER_UNMAP 3
+
+struct kvm_s390_io_adapter_req {
+        __u32 id;
+        __u8 type;
+        __u8 mask;
+        __u16 pad0;
+        __u64 addr;
+};
+
 /* for KVM_GET_REGS and KVM_SET_REGS */
 struct kvm_regs {
         /* general purpose regs for s390 */