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| author | Christian Borntraeger <borntraeger@linux.ibm.com> | 2022-07-11 12:28:57 +0300 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@linux.ibm.com> | 2022-07-11 12:28:57 +0300 |
| commit | d41b5e0176a610152072d2ce7a83879fb07ea2fa (patch) | |
| tree | 6047e6f514c29653451372ba1f975c8aa18bb896 /include/uapi/linux/kvm.h | |
| parent | 4b88b1a518b337de1252b8180519ca4c00015c9e (diff) | |
| parent | 4ac34b94a5342544baa72ce09fc5e825a9d35070 (diff) | |
| download | linux-d41b5e0176a610152072d2ce7a83879fb07ea2fa.tar.xz | |
Merge tag 'kvm-s390-pci-5.20' into kernelorgnext
KVM: s390/pci: enable zPCI for interpretive execution
Add the necessary code in s390 base, pci and KVM to enable interpretion
of PCI pasthru.
Diffstat (limited to 'include/uapi/linux/kvm.h')
| -rw-r--r-- | include/uapi/linux/kvm.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index a36e78710382..20817dd7f2f1 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1167,6 +1167,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_X86_TRIPLE_FAULT_EVENT 218 #define KVM_CAP_X86_NOTIFY_VMEXIT 219 #define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220 +#define KVM_CAP_S390_ZPCI_OP 221 #ifdef KVM_CAP_IRQ_ROUTING @@ -2186,4 +2187,34 @@ struct kvm_stats_desc { #define KVM_X86_NOTIFY_VMEXIT_ENABLED (1ULL << 0) #define KVM_X86_NOTIFY_VMEXIT_USER (1ULL << 1) +/* Available with KVM_CAP_S390_ZPCI_OP */ +#define KVM_S390_ZPCI_OP _IOW(KVMIO, 0xd1, struct kvm_s390_zpci_op) + +struct kvm_s390_zpci_op { + /* in */ + __u32 fh; /* target device */ + __u8 op; /* operation to perform */ + __u8 pad[3]; + union { + /* for KVM_S390_ZPCIOP_REG_AEN */ + struct { + __u64 ibv; /* Guest addr of interrupt bit vector */ + __u64 sb; /* Guest addr of summary bit */ + __u32 flags; + __u32 noi; /* Number of interrupts */ + __u8 isc; /* Guest interrupt subclass */ + __u8 sbo; /* Offset of guest summary bit vector */ + __u16 pad; + } reg_aen; + __u64 reserved[8]; + } u; +}; + +/* types for kvm_s390_zpci_op->op */ +#define KVM_S390_ZPCIOP_REG_AEN 0 +#define KVM_S390_ZPCIOP_DEREG_AEN 1 + +/* flags for kvm_s390_zpci_op->u.reg_aen.flags */ +#define KVM_S390_ZPCIOP_REGAEN_HOST (1 << 0) + #endif /* __LINUX_KVM_H */ |