The issue is that some amd platforms (pre-Barcelona) are not able to
have guests that use the tsc as a clock source.
Either:
a) Hosts with these processors should disable cpu frequency scaling, or
b) Guests should use clock=acpi_pm
We could add a check to the kvm or qemu binary to check if cpu frequency
scaling is enabled and throw an error. Even this is imperfect, though,
as you could still screw yourself if you enable it after the vm starts.
I'm forward this upstream to see what they think.
:-Dustin
** Also affects: qemu
Importance: Undecided
Status: New
** Changed in: qemu
Importance: Undecided => Wishlist
** Changed in: qemu
Status: New => Confirmed
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guest needs to boot with clock=acpi_pm
https://bugs.launchpad.net/bugs/361754
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