1 files changed, 30 insertions, 0 deletions

diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
index d240ea950519..5728852fb90f 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -39,12 +39,15 @@
 #include <linux/string.h>
 #include <linux/types.h>
 
+#include <trace/events/xen.h>
+
 #include <asm/page.h>
 #include <asm/pgtable.h>
 
 #include <xen/interface/xen.h>
 #include <xen/interface/sched.h>
 #include <xen/interface/physdev.h>
+#include <xen/interface/platform.h>
 
 /*
  * The hypercall asms have to meet several constraints:
@@ -299,6 +302,13 @@ HYPERVISOR_set_timer_op(u64 timeout)
 }
 
 static inline int
+HYPERVISOR_dom0_op(struct xen_platform_op *platform_op)
+{
+	platform_op->interface_version = XENPF_INTERFACE_VERSION;
+	return _hypercall1(int, dom0_op, platform_op);
+}
+
+static inline int
 HYPERVISOR_set_debugreg(int reg, unsigned long value)
 {
 	return _hypercall2(int, set_debugreg, reg, value);
@@ -459,6 +469,8 @@ MULTI_fpu_taskswitch(struct multicall_entry *mcl, int set)
 {
 	mcl->op = __HYPERVISOR_fpu_taskswitch;
 	mcl->args[0] = set;
+
+	trace_xen_mc_entry(mcl, 1);
 }
 
 static inline void
@@ -475,6 +487,8 @@ MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va,
 		mcl->args[2] = new_val.pte >> 32;
 		mcl->args[3] = flags;
 	}
+
+	trace_xen_mc_entry(mcl, sizeof(new_val) == sizeof(long) ? 3 : 4);
 }
 
 static inline void
@@ -485,6 +499,8 @@ MULTI_grant_table_op(struct multicall_entry *mcl, unsigned int cmd,
 	mcl->args[0] = cmd;
 	mcl->args[1] = (unsigned long)uop;
 	mcl->args[2] = count;
+
+	trace_xen_mc_entry(mcl, 3);
 }
 
 static inline void
@@ -504,6 +520,8 @@ MULTI_update_va_mapping_otherdomain(struct multicall_entry *mcl, unsigned long v
 		mcl->args[3] = flags;
 		mcl->args[4] = domid;
 	}
+
+	trace_xen_mc_entry(mcl, sizeof(new_val) == sizeof(long) ? 4 : 5);
 }
 
 static inline void
@@ -520,6 +538,8 @@ MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr,
 		mcl->args[2] = desc.a;
 		mcl->args[3] = desc.b;
 	}
+
+	trace_xen_mc_entry(mcl, sizeof(maddr) == sizeof(long) ? 2 : 4);
 }
 
 static inline void
@@ -528,6 +548,8 @@ MULTI_memory_op(struct multicall_entry *mcl, unsigned int cmd, void *arg)
 	mcl->op = __HYPERVISOR_memory_op;
 	mcl->args[0] = cmd;
 	mcl->args[1] = (unsigned long)arg;
+
+	trace_xen_mc_entry(mcl, 2);
 }
 
 static inline void
@@ -539,6 +561,8 @@ MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req,
 	mcl->args[1] = count;
 	mcl->args[2] = (unsigned long)success_count;
 	mcl->args[3] = domid;
+
+	trace_xen_mc_entry(mcl, 4);
 }
 
 static inline void
@@ -550,6 +574,8 @@ MULTI_mmuext_op(struct multicall_entry *mcl, struct mmuext_op *op, int count,
 	mcl->args[1] = count;
 	mcl->args[2] = (unsigned long)success_count;
 	mcl->args[3] = domid;
+
+	trace_xen_mc_entry(mcl, 4);
 }
 
 static inline void
@@ -558,6 +584,8 @@ MULTI_set_gdt(struct multicall_entry *mcl, unsigned long *frames, int entries)
 	mcl->op = __HYPERVISOR_set_gdt;
 	mcl->args[0] = (unsigned long)frames;
 	mcl->args[1] = entries;
+
+	trace_xen_mc_entry(mcl, 2);
 }
 
 static inline void
@@ -567,6 +595,8 @@ MULTI_stack_switch(struct multicall_entry *mcl,
 	mcl->op = __HYPERVISOR_stack_switch;
 	mcl->args[0] = ss;
 	mcl->args[1] = esp;
+
+	trace_xen_mc_entry(mcl, 2);
 }
 
 #endif /* _ASM_X86_XEN_HYPERCALL_H */