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Diffstat (limited to 'docs/hyperv.txt')
| -rw-r--r-- | docs/hyperv.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/docs/hyperv.txt b/docs/hyperv.txt index 5df00da..e53c581 100644 --- a/docs/hyperv.txt +++ b/docs/hyperv.txt @@ -160,6 +160,11 @@ the hypervisor) until it is ready to switch to the new one. This, in conjunction with hv-frequencies, allows Hyper-V on KVM to pass stable clocksource (Reference TSC page) to its own guests. +Note, KVM doesn't fully support re-enlightenment notifications and doesn't +emulate TSC accesses after migration so 'tsc-frequency=' CPU option also has to +be specified to make migration succeed. The destination host has to either have +the same TSC frequency or support TSC scaling CPU feature. + Recommended: hv-frequencies 3.16. hv-evmcs |