[PATCH 2/2] examples: systemtap: Update to linux-6.3

Peter Krempa pkrempa at redhat.com
Mon Mar 6 10:21:54 UTC 2023


The 'vmsa' struct was moved out of 'struct vcpu_svm' in linux commit:

  commit b67a4cc35c9f726999fa29880713ce72d4e39e8d
  Author: Peter Gonda <pgonda at google.com>
  Date:   Thu Oct 21 10:42:59 2021 -0700

      KVM: SEV: Refactor out sev_es_state struct

      Move SEV-ES vCPU metadata into new sev_es_state struct from vcpu_svm.

Also update the line reference for linux-6.3.

NB: I strongly considered removing the example as it's impossible to
keep in sync. With the warning added by previous commit I think we can
give it one more chance.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2175598
Signed-off-by: Peter Krempa <pkrempa at redhat.com>
---
 examples/systemtap/amd-sev-es-vmsa.stp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/examples/systemtap/amd-sev-es-vmsa.stp b/examples/systemtap/amd-sev-es-vmsa.stp
index 14bfb01c10..ab2f202681 100644
--- a/examples/systemtap/amd-sev-es-vmsa.stp
+++ b/examples/systemtap/amd-sev-es-vmsa.stp
@@ -46,7 +46,7 @@ function dump_vmsa(addr:long) {
 # is the one beween the call to clflush_cache_range(...) and the
 # call to sev_issue_cmd(kvm, SEV_CMD_LAUNCH_UPDATE...).
 #
-# Line 632 is correct for Linux v6.0
-probe module("kvm_amd").statement("__sev_launch_update_vmsa at arch/x86/kvm/svm/sev.c:632") {
-  dump_vmsa($svm->vmsa)
+# Line 635 is correct for Linux v6.3
+probe module("kvm_amd").statement("__sev_launch_update_vmsa at arch/x86/kvm/svm/sev.c:635") {
+  dump_vmsa($svm->sev_es->vmsa)
 }
-- 
2.39.2



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