On Thu, Jan 09, 2020 at 09:19:57PM -0800, Sukadev Bhattiprolu wrote:
> Ultravisor disables some CPU features like BHRB, EBB and PMU in
> secure virtual machines (SVMs). Skip accessing those registers
> in SVMs to avoid getting a Program Interrupt.
It would be useful to have more explanation of
Ultravisor disables some CPU features like BHRB, EBB and PMU in
secure virtual machines (SVMs). Skip accessing those registers
in SVMs to avoid getting a Program Interrupt.
Signed-off-by: Sukadev Bhattiprolu
Acked-by: Madhavan Srinivasan
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Changelog[v2]
- [Michael Ellerman] Optimize
