Re: [Xen-devel] [PATCH v3 2/8] ARM: VGIC: split gic.c to observe hardware/virtual GIC separation

[Julien Grall <julien.grall@xxxxxxx>]

Hi Andre,

On 24/01/18 18:10, Andre Przywara wrote:
> diff --git a/xen/arch/arm/gic-vgic.c b/xen/arch/arm/gic-vgic.c
> new file mode 100644
> index 0000000000..98df84e3d5
> --- /dev/null
> +++ b/xen/arch/arm/gic-vgic.c
> @@ -0,0 +1,410 @@
> +/*
> + * xen/arch/arm/gic-vgic.c
> + *
> + * ARM Generic Interrupt Controller virtualization support
> + *
> + * Tim Deegan <tim@xxxxxxx>
> + * Copyright (c) 2011 Citrix Systems.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + */
> +
> +#include <xen/lib.h>
> +#include <xen/init.h>
> +#include <xen/mm.h>
> +#include <xen/irq.h>
> +#include <xen/sched.h>
> +#include <xen/errno.h>
> +#include <xen/softirq.h>
> +#include <xen/list.h>
> +#include <xen/device_tree.h>
> +#include <xen/acpi.h>
> +#include <asm/p2m.h>
> +#include <asm/domain.h>
> +#include <asm/platform.h>
> +#include <asm/device.h>
> +#include <asm/io.h>
> +#include <asm/gic.h>
> +#include <asm/vgic.h>
> +#include <asm/acpi.h>
Do we need all those includes? Likely none of this code cares about DT 
or ACPI.
> +
> +extern uint64_t per_cpu__lr_mask;
Please use DECLARE_PER_CPU(lr_mask). But that should really be defined 
in an header and not an extern in C file.
> +extern const struct gic_hw_operations *gic_hw_ops;
Ditto for the extern.

Cheers,

--
Julien Grall

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