linux-kernel - Re: [PATCH v3 05/32] irqchip/gic-v4.1: VPE table (aka GICR

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Date:   Wed, 22 Jan 2020 10:59:19 +0800
From:   Zenghui Yu <yuzenghui@...wei.com>
To:     Marc Zyngier <maz@...nel.org>, <kvmarm@...ts.cs.columbia.edu>,
        <linux-kernel@...r.kernel.org>
CC:     Eric Auger <eric.auger@...hat.com>,
        James Morse <james.morse@....com>,
        Julien Thierry <julien.thierry.kdev@...il.com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        "Andrew Murray" <Andrew.Murray@....com>,
        Robert Richter <rrichter@...vell.com>
Subject: Re: [PATCH v3 05/32] irqchip/gic-v4.1: VPE table (aka
 GICR_VPROPBASER) allocation

On 2019/12/24 19:10, Marc Zyngier wrote:

> @@ -4147,6 +4453,8 @@ int __init its_init(struct fwnode_handle *handle, struct rdists *rdists,
>   	bool has_v4 = false;
>   	int err;
>   
> +	gic_rdists = rdists;
> +
>   	its_parent = parent_domain;
>   	of_node = to_of_node(handle);
>   	if (of_node)
> @@ -4159,8 +4467,6 @@ int __init its_init(struct fwnode_handle *handle, struct rdists *rdists,
>   		return -ENXIO;
>   	}
>   
> -	gic_rdists = rdists;
> -
>   	err = allocate_lpi_tables();
>   	if (err)
>   		return err;

And shouldn't this be part of patch#2?  (As the new ITS_MAX_VPEID_BITS
would use gic_rdists in the allocation of ITS vPE table.)

But I haven't tested the first two patches separately, I guess it may
crash my box ;-)


Thanks,
Zenghui