linux-kernel - Re: [PATCH v2 4/7] kvm/mips: rework guest entry logic

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Message-ID: <cbb6a332-f230-ff5e-ce64-5dbbd6df02b5@redhat.com>
Date:   Thu, 20 Jan 2022 12:10:22 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Mark Rutland <mark.rutland@....com>, linux-kernel@...r.kernel.org
Cc:     aleksandar.qemu.devel@...il.com, alexandru.elisei@....com,
        anup.patel@....com, aou@...s.berkeley.edu, atish.patra@....com,
        borntraeger@...ux.ibm.com, bp@...en8.de, catalin.marinas@....com,
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Subject: Re: [PATCH v2 4/7] kvm/mips: rework guest entry logic

On 1/19/22 11:58, Mark Rutland wrote:
> +	 * TODO: is there a barrier which ensures that pending interrupts are
> +	 * recognised? Currently this just hopes that the CPU takes any pending
> +	 * interrupts between the enable and disable.
> +	 */
> +	local_irq_enable();
> +	local_irq_disable();
>   

It's okay, there is irq_enable_hazard() but it's automatically included 
in arch_local_irq_enable().

Paolo