| Message ID | 20210813071211.1635310-2-david.edmondson@oracle.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: x86: Convey the exit reason, etc. to user-space on emulation failure | expand |
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index d9e4aabcb31a..6c79c1ce3703 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -402,8 +402,12 @@ struct kvm_run { __u32 suberror; __u32 ndata; __u64 flags; - __u8 insn_size; - __u8 insn_bytes[15]; + union { + struct { + __u8 insn_size; + __u8 insn_bytes[15]; + }; + }; } emulation_failure; /* KVM_EXIT_OSI */ struct {
Until more flags for kvm_run.emulation_failure flags are defined, it is undetermined whether new payload elements corresponding to those flags will be additive or alternative. As a hint to userspace that an alternative is possible, wrap the current payload elements in a union. Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: David Edmondson <david.edmondson@oracle.com> --- include/uapi/linux/kvm.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)