[PATCH 5/5] kvmppc: kvmtrace: trace powerpc instruction emulation

[ehrhardt@linux.vnet.ibm.com]

From: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>

This patch adds trace points for the instruction emulation on embedded powerpc
utilizing the KVM_TRACE interface.
The userspace portion to map and analyze the new ppc trace records will follow
soon.

Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
---

[diffstat]
 arch/powerpc/kvm/emulate.c |    4 ++++
 include/linux/kvm.h        |    1 +
 2 files changed, 5 insertions(+)

[diff]

diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -769,6 +769,10 @@
 		break;
 	}
 
+	KVMTRACE_4D(PPC_INSTR, vcpu,
+			inst, vcpu->arch.pc, emulated,
+			(__u32)current_kernel_time().tv_nsec, entryexit);
+
 	if (advance)
 		vcpu->arch.pc += 4; /* Advance past emulated instruction. */
 
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -473,5 +473,6 @@
 #define KVM_TRC_GTLB_WRITE       (KVM_TRC_HANDLER + 0x16)
 #define KVM_TRC_STLB_WRITE       (KVM_TRC_HANDLER + 0x17)
 #define KVM_TRC_STLB_INVAL       (KVM_TRC_HANDLER + 0x18)
+#define KVM_TRC_PPC_INSTR        (KVM_TRC_HANDLER + 0x19)
 
 #endif