[lttng-dev] [PATCH lttng-modules 4/5] Fix: Revert "KVM: MMU: show mmu_valid_gen..." (v5.1)

[Michael Jeanson]

See upstream commit :

  commit b59c4830ca185ba0e9f9e046fb1cd10a4a92627a
  Author: Sean Christopherson <sean.j.christopherson at intel.com>
  Date:   Tue Feb 5 13:01:30 2019 -0800

    Revert "KVM: MMU: show mmu_valid_gen in shadow page related tracepoints"

    ...as part of removing x86 KVM's fast invalidate mechanism, i.e. this
    is one part of a revert all patches from the series that introduced the
    mechanism[1].

    This reverts commit 2248b023219251908aedda0621251cffc548f258.

Signed-off-by: Michael Jeanson <mjeanson at efficios.com>
---
 .../events/lttng-module/arch/x86/kvm/mmutrace.h        | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h b/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h
index 39ec6a9..e25a774 100644
--- a/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h
+++ b/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h
@@ -14,7 +14,15 @@
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM kvm_mmu
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0))
+
+#define LTTNG_KVM_MMU_PAGE_FIELDS \
+	ctf_integer(__u64, gfn, (sp)->gfn) \
+	ctf_integer(__u32, role, (sp)->role.word) \
+	ctf_integer(__u32, root_count, (sp)->root_count) \
+	ctf_integer(bool, unsync, (sp)->unsync)
+
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
 
 #define LTTNG_KVM_MMU_PAGE_FIELDS \
 	ctf_integer(unsigned long, mmu_valid_gen, (sp)->mmu_valid_gen) \
-- 
2.17.1