[PATCH 0/8] kvmtrace: powerpc support and timestamps for KVM_TRACE v3

[ehrhardt@linux.vnet.ibm.com]

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

Changing kvmtrace code to use timestamps and add powerpc support.

This is the revised series including the feedback from the earlier submission
last week. I now also added the userspace changes which complete the series.

Updated in v3:
	patch 2/8 now uses ktime_get() for all architectures as discussed

The series contains eight patches (3 generic / 5 powerpc code):

Subject: [PATCH 1/8] kvmtrace: Remove use of bit fields in kvm trace structure v3
	Introducing a endian save way to store the flags event,tcs, num_data 
Subject: [PATCH 2/8] kvmtrace: replace get_cycles with getnstimeofday
	use a new timestamp source (ktime_get) which makes it 32/64 bit save,
	comparable and does not need an arch hook
Subject: [PATCH 3/8] kvmppc: kvmtrace: enable KVM_TRACE building for powerpc
	enable KVM_TRACE for powerpc in Kconfig/Makefile
Subject: [PATCH 4/8] kvmppc: kvmtrace: adds trace points for ppc tlb activity v2
	use KVM_TRACE to track tlb/shadow tlb activity on embedded powerpc
Subject: [PATCH 5/8] kvmppc: kvmtrace: trace powerpc instruction emulation
	use KVM_TRACE to track instruction emulation overhead
Subject: [PATCH 6/8] kvm-userspace: kvmtrace_format: add ppc instruction emulation
	extension to kvmtrace_format to handle complex event types e.g. ppc
	instructon emulation
Subject: [PATCH 7/8] kvm-userspace: kvmtrace_format: add statistic section
	adding statistic creation/prsentation to the kvmtrace data processing
Subject: [PATCH 8/8] kvm-userspace: kvmtrace: rename cycles to timestamp
	it is no more tracking cycles, so rename variables and change comments

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

[diffstat]
 arch/powerpc/kvm/emulate.c   |    2
 b/arch/powerpc/kvm/44x_tlb.c |   15 ++
 b/arch/powerpc/kvm/Kconfig   |   11 +
 b/arch/powerpc/kvm/Makefile  |    6
 b/arch/powerpc/kvm/emulate.c |    4
 b/include/linux/kvm.h        |   17 ++
 b/user/formats               |   16 --
 b/user/kvmtrace_format       |  276 ++++++++++++++++++++++++++++++++++++++++---
 b/virt/kvm/kvm_trace.c       |   19 +-
 include/linux/kvm.h          |   10 +
 user/formats                 |   50 +++----
 user/kvmtrace_format         |  114 +++++++++++++----
 virt/kvm/kvm_trace.c         |   18 +-
 13 files changed, 452 insertions(+), 106 deletions(-)