Re: [PATCH v3] KVM: x86: hyper-v: Don't auto-enable stimer on write from user-space

[Sean Christopherson]

On Tue, 17 Oct 2023 15:51:02 +0000, Nicolas Saenz Julienne wrote:
> Don't apply the stimer's counter side effects when modifying its
> value from user-space, as this may trigger spurious interrupts.
> 
> For example:
>  - The stimer is configured in auto-enable mode.
>  - The stimer's count is set and the timer enabled.
>  - The stimer expires, an interrupt is injected.
>  - The VM is live migrated.
>  - The stimer config and count are deserialized, auto-enable is ON, the
>    stimer is re-enabled.
>  - The stimer expires right away, and injects an unwarranted interrupt.
> 
> [...]

Applied to kvm-x86 misc, thanks!

[1/1] KVM: x86: hyper-v: Don't auto-enable stimer on write from user-space
      https://github.com/kvm-x86/linux/commit/d6800af51c76

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