KVM: Implement bare minimum of HYPER-V MSRs

Minimum HYPER-V implementation should have GUEST_OS_ID, HYPERCALL and
VP_INDEX MSRs.

[avi: fix build on i386]

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Vadim Rozenfeld <vrozenfe@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 816e0449db0b..1cb3d0e990f3 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -56,6 +56,38 @@ TRACE_EVENT(kvm_hypercall,
 );
 
 /*
+ * Tracepoint for hypercall.
+ */
+TRACE_EVENT(kvm_hv_hypercall,
+        TP_PROTO(__u16 code, bool fast, __u16 rep_cnt, __u16 rep_idx,
+                 __u64 ingpa, __u64 outgpa),
+        TP_ARGS(code, fast, rep_cnt, rep_idx, ingpa, outgpa),
+
+        TP_STRUCT__entry(
+                __field(        __u16,          code            )
+                __field(        bool,           fast            )
+                __field(        __u16,          rep_cnt         )
+                __field(        __u16,          rep_idx         )
+                __field(        __u64,          ingpa           )
+                __field(        __u64,          outgpa          )
+        ),
+
+        TP_fast_assign(
+                __entry->code           = code;
+                __entry->fast           = fast;
+                __entry->rep_cnt        = rep_cnt;
+                __entry->rep_idx        = rep_idx;
+                __entry->ingpa          = ingpa;
+                __entry->outgpa         = outgpa;
+        ),
+
+        TP_printk("code 0x%x %s cnt 0x%x idx 0x%x in 0x%llx out 0x%llx",
+                  __entry->code, __entry->fast ? "fast" : "slow",
+                  __entry->rep_cnt, __entry->rep_idx,  __entry->ingpa,
+                  __entry->outgpa)
+);
+
+/*
  * Tracepoint for PIO.
  */
 TRACE_EVENT(kvm_pio,