Hi Julien,

On 28/08/18 16:51, Julien Thierry wrote:

For EL0 entries requiring bp_hardening, daif status is kept at
DAIF_PROCCTX_NOIRQ until after hardening has been done. Then interrupts
are enabled through local_irq_enable().

Before using local_irq_* functions, daifflags should be properly restored
to a state where IRQs are enabled.

Enable IRQs by restoring DAIF_PROCCTX state after bp hardening.

Is this just for symmetry, or are you going on to add something to the daifflags
state that local_irq_* functions won't change? (if so, could you allude to that
in the commit message)


Either way,

Acked-by: James Morse <james.morse@arm.com>