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SubjectRe: [PATCH 1/2] x86/entry: Avoid interrupt flag save and restore
On Mon, Jun 20, 2016 at 7:58 AM, Paolo Bonzini <> wrote:
> Thanks to all the work that was done by Andy Lutomirski and others,
> enter_from_user_mode and prepare_exit_to_usermode are now called only with
> interrupts disabled. Let's provide them a version of user_enter/user_exit
> that skips saving and restoring the interrupt flag.

You're also skipping the in_interrupt() check, but that appears to be fine.

Reviewed-by: Andy Lutomirski <>

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