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From: Julien Grall <julien.grall@gmail.com>
To: Stefano Stabellini <sstabellini@kernel.org>
Cc: artem_mygaiev@epam.com, lars.kurth@citrix.com,
	andrii_anisov@epam.com, andrew.cooper3@citrix.com,
	dfaggioli@suse.com, julien.grall@arm.com, JBeulich@suse.com,
	xen-devel@lists.xen.org
Subject: Re: [PATCH v4 10/10] xen: add per-platform defaults for NR_CPUS
Date: Fri, 1 Jun 2018 03:49:17 +0100	[thread overview]
Message-ID: <CAF3u54CKgHtX9g+R6wYA4+VL4RHCjWvSKEjxTnnwSiN3P8CuSA@mail.gmail.com> (raw)
In-Reply-To: <1527803317-31750-10-git-send-email-sstabellini@kernel.org>


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Hi,

Sorry for the formatting. I am pretty sure you need to CC "THE REST" here.

On Thu, 31 May 2018, 22:50 Stefano Stabellini, <sstabellini@kernel.org>
wrote:

> Add specific per-platform defaults for NR_CPUS. Note that the order of
> the defaults matter: they need to go first, otherwise the generic
> defaults will be applied.
>
> This is done so that Xen builds customized for a specific hardware
> platform can have the right NR_CPUS number.
>
> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
> CC: JBeulich@suse.com
> CC: andrew.cooper3@citrix.com
> ---
>  xen/arch/Kconfig | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/xen/arch/Kconfig b/xen/arch/Kconfig
> index cf0acb7..d451eb8 100644
> --- a/xen/arch/Kconfig
> +++ b/xen/arch/Kconfig
> @@ -2,6 +2,9 @@
>  config NR_CPUS
>         int "Maximum number of physical CPUs"
>         range 1 4095
> +       default "8" if ARM && RCAR3
> +       default "4" if ARM && QEMU
> +       default "4" if ARM && MPSOC
>         default "256" if X86
>         default "128" if ARM
>         ---help---
>

IMHO, it would make sense to move this option in the arch/{arm,x86)/Kconfig.

But I am not sure how this will work as with this series you can select
multiple platforms in on Kconfig. What will be the end result?

Anyway, as I mention the way to go is a option list with only one possible
choice.

Cheers,


-- 
> 1.9.1
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xenproject.org
> https://lists.xenproject.org/mailman/listinfo/xen-devel

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_______________________________________________
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Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

  reply	other threads:[~2018-06-01  2:49 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-31 21:48 [PATCH v4 0/10] arm: more kconfig configurability and small default configs Stefano Stabellini
2018-05-31 21:48 ` [PATCH v4 01/10] arm: remove the ARM HDLCD driver Stefano Stabellini
2018-05-31 21:48 ` [PATCH v4 02/10] arm: make it possible to disable HAS_GICV3 Stefano Stabellini
2018-05-31 21:48 ` [PATCH v4 03/10] arm: rename HAS_GICV3 to GICV3 Stefano Stabellini
2018-05-31 21:48 ` [PATCH v4 04/10] Make MEM_ACCESS configurable Stefano Stabellini
2018-06-01 10:52   ` Jan Beulich
2018-06-01 15:24     ` Stefano Stabellini
2018-06-01 15:42       ` Jan Beulich
2018-05-31 21:48 ` [PATCH v4 05/10] make it possible to enable/disable UART drivers Stefano Stabellini
2018-06-01 10:54   ` Jan Beulich
2018-06-01 15:28     ` Stefano Stabellini
2018-06-01 15:44       ` Jan Beulich
2018-05-31 21:48 ` [PATCH v4 06/10] arm: make it possible to disable the SMMU driver Stefano Stabellini
2018-05-31 21:48 ` [PATCH v4 07/10] arm: add a tiny kconfig configuration Stefano Stabellini
2018-06-01  2:39   ` Julien Grall
2018-06-01 20:51     ` Stefano Stabellini
2018-05-31 21:48 ` [PATCH v4 08/10] arm: add QEMU, Rcar3 and MPSoC configs Stefano Stabellini
2018-06-01  2:45   ` Julien Grall
2018-06-01 20:51     ` Stefano Stabellini
2018-06-04 15:58       ` Julien Grall
2018-06-01 11:38   ` Volodymyr Babchuk
2018-05-31 21:48 ` [PATCH v4 09/10] xen: add cloc target Stefano Stabellini
2018-06-01 10:57   ` Jan Beulich
2018-05-31 21:48 ` [PATCH v4 10/10] xen: add per-platform defaults for NR_CPUS Stefano Stabellini
2018-06-01  2:49   ` Julien Grall [this message]
2018-06-01 20:53     ` Stefano Stabellini
2018-06-04 16:07       ` Julien Grall
2018-06-01 10:59   ` Jan Beulich
2018-06-01 20:52     ` Stefano Stabellini
2018-06-01 19:17 ` [PATCH v4 0/10] arm: more kconfig configurability and small default configs Doug Goldstein

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