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| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2013-07-15 13:36:01 +0200 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2014-03-21 13:42:49 +0100 |
| commit | 841b91c584b6d1e2a2cb508bd2d0236cd37e1750 (patch) | |
| tree | 0a2f1b2cfa471cefa22bc9c12628361ed2c0ac4c /arch/s390/include | |
| parent | d938dc55225a7212e7f31c5a8571da304cc3de16 (diff) | |
| download | op-kernel-dev-841b91c584b6d1e2a2cb508bd2d0236cd37e1750.zip op-kernel-dev-841b91c584b6d1e2a2cb508bd2d0236cd37e1750.tar.gz | |
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>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/kvm_host.h | 23 | ||||
| -rw-r--r-- | arch/s390/include/uapi/asm/kvm.h | 22 |
2 files changed, 45 insertions, 0 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 734d302..0d52352 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -19,6 +19,7 @@ #include <linux/kvm.h> #include <asm/debug.h> #include <asm/cpu.h> +#include <asm/isc.h> #define KVM_MAX_VCPUS 64 #define KVM_USER_MEM_SLOTS 32 @@ -245,6 +246,27 @@ struct kvm_vm_stat { struct kvm_arch_memory_slot { }; +struct s390_map_info { + struct list_head list; + __u64 guest_addr; + __u64 addr; + struct page *page; +}; + +struct s390_io_adapter { + unsigned int id; + int isc; + bool maskable; + bool masked; + bool swap; + struct rw_semaphore maps_lock; + struct list_head maps; + atomic_t nr_maps; +}; + +#define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) +#define MAX_S390_ADAPTER_MAPS 256 + struct kvm_arch{ struct sca_block *sca; debug_info_t *dbf; @@ -252,6 +274,7 @@ struct kvm_arch{ struct kvm_device *flic; struct gmap *gmap; int css_support; + struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; }; #define KVM_HVA_ERR_BAD (-1UL) diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h index 2f0ade2..c003c6a 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 */ |
