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| author | Louis Burda <quent.burda@gmail.com> | 2022-11-16 16:03:04 +0100 |
|---|---|---|
| committer | Louis Burda <quent.burda@gmail.com> | 2022-11-16 16:03:40 +0100 |
| commit | afe49b52f6b2ac52efe8e610e64ee07c7c2efef4 (patch) | |
| tree | 56a5f2a95b25843947b207e72e6890b09d52b937 /notes | |
| parent | 10d3c8f52dc2c0f498e81946bef8292424fcd1ce (diff) | |
| download | cachepc-afe49b52f6b2ac52efe8e610e64ee07c7c2efef4.tar.gz cachepc-afe49b52f6b2ac52efe8e610e64ee07c7c2efef4.zip | |
APIC single stepping working
Diffstat (limited to 'notes')
| -rw-r--r-- | notes | 13 |
1 files changed, 7 insertions, 6 deletions
@@ -6,9 +6,6 @@ Questions: - test/sevstep: why does it seem to work with event race but not without? => it doesnt (anymore) -Tried: -- try invalidating tlbs (no effect, prob was already) - Next steps: - enable single-steping with multiple page faults (only one ends up in last_fault_gfn and others stay untracked) @@ -17,11 +14,15 @@ Next steps: such that we see the relevant page faults and the gfn increment - test/sevstep: implement counter.. read program memory to see how many instructions were executed on apic timer -- add warning for high values in baseline Meeting questions: - Why is decrypted rip sometimes off-by-one? => -- VM gets interrupted independent of our APIC (by the scheduler) is this a problem? +- VM gets interrupted independent of our APIC (by the scheduler?) was this a problem for you? + => +- Is supplementing apic with waiting for next fault viable? (seems to work well actually) + => +- How does single stepping work with fixed cpu frequency when we always step less than one instruction? => -- + + |