maintaining of kvm_clock stability on guest vCPU hotplug
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b4 am [email protected]Versions newest first · linked by author and title
- v2 Latest posting 2/22 patches 1 replyIn review
- v2 posting 1/22 patches 0 repliesSuperseded
- v12 patches 3 repliesSuperseded
Patches in v2 posting 2/2 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | KVM: x86: remaster kvm_write_tsc codearch/ | +13 | 0 replies | |
| 2/2 | KVM: x86: fix maintaining of kvm_clock stability on guest CPU hotplugarch/ | +19 | 0 replies |
Reviews trailers per patch
All 2 patches have a Reviewed-by or Acked-by.
| Patch | Roman Kagan |
|---|---|
| 1/2 | R-b |
| 2/2 | R-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH v2 0/2] maintaining of kvm_clock stability on guest vCPU hotplug
new in v2:
- fix possible wraparound on the synchronization detection
- lines exceeding 80 chars are re-formatted
- excess parentheses are removed
======================
It was found, that after adding a new vCPU to a running VM (CPU hotplug) kvm_clock lost the stability property in case of using it. This happened because KVM didn't treated cpu hotplug as a special case of TSC synchronization.
This patch series adds cpu hotplug to the TSC synchronization cases.
Denis Plotnikov (2):
KVM: x86: remaster kvm_write_tsc code
KVM: x86: fix maintaining of kvm_clock stability on guest CPU hotplug
arch/x86/kvm/x86.c | 61 ++++++++++++++++++++---------------------------------- 1 file changed, 22 insertions(+), 39 deletions(-)
Signature · 1 line
1.8.3.1