linux-kernel - Re: [PATCH v9 17/26] arm64: Switch to PMR masking when starting CPUs

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Message-ID: <861s4xvxhq.wl-marc.zyngier@arm.com>
Date:   Mon, 28 Jan 2019 11:21:21 +0000
From:   Marc Zyngier <marc.zyngier@....com>
To:     Julien Thierry <julien.thierry@....com>
Cc:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <daniel.thompson@...aro.org>,
        <joel@...lfernandes.org>, <christoffer.dall@....com>,
        <james.morse@....com>, <catalin.marinas@....com>,
        <will.deacon@....com>, <mark.rutland@....com>
Subject: Re: [PATCH v9 17/26] arm64: Switch to PMR masking when starting CPUs

On Mon, 21 Jan 2019 15:33:36 +0000,
Julien Thierry <julien.thierry@....com> wrote:
> 
> Once the boot CPU has been prepared or a new secondary CPU has been
> brought up, use ICC_PMR_EL1 to mask interrupts on that CPU and clear
> PSR.I bit.
> 
> Since ICC_PMR_EL1 is initialized at CPU bringup, avoid overwriting
> it in the GICv3 driver.
> 
> Signed-off-by: Julien Thierry <julien.thierry@....com>
> Suggested-by: Daniel Thompson <daniel.thompson@...aro.org>
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Will Deacon <will.deacon@....com>
> Cc: James Morse <james.morse@....com>
> Cc: Marc Zyngier <marc.zyngier@....com>

Acked-by: Marc Zyngier <marc.zyngier@....com>

	M.

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