From: Julien Grall <julien.grall@arm.com>
To: Lukas Juenger <juenger@ice.rwth-aachen.de>,
xen-devel@lists.xenproject.org
Cc: Stefano Stabellini <sstabellini@kernel.org>
Subject: Re: [PATCH v2] xen/arm: Cap the number of interrupt lines for dom0
Date: Mon, 8 Apr 2019 11:15:58 +0100 [thread overview]
Message-ID: <e68dfbce-c369-eb90-97a8-894267351c8e@arm.com> (raw)
In-Reply-To: <abc8ea85-fe26-46b6-af1a-dcaaa877fd7d@rwthex-w1-a.rwth-ad.de>
Hi Lukas,
On 4/5/19 2:54 PM, Lukas Juenger wrote:
> Dom0 vGIC will use the same number of interrupt lines as the hardware GIC.
> While the hardware GIC can support up to 1020 interrupt lines,
> the vGIC is only supporting up to 992 interrupt lines.
> This means that Xen will not be able to boot on platforms where the hardware
> GIC supports more than 992 interrupt lines.
> While it would make sense to increase the limits in the vGICs, this is not
> trivial because of the design choices.
> At the moment, only models seem to report the maximum of interrupt lines.
> They also do not have any interrupt wired above the 992 limit.
> So it should be fine to cap the number of interrupt lines for dom0 to 992 lines.
>
> Signed-off-by: Lukas Juenger <juenger@ice.rwth-aachen.de>
Acked-by: Julien Grall <julien.grall@arm.com>
Cheers,
--
Julien Grall
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
WARNING: multiple messages have this Message-ID (diff)
From: Julien Grall <julien.grall@arm.com>
To: Lukas Juenger <juenger@ice.rwth-aachen.de>,
xen-devel@lists.xenproject.org
Cc: Stefano Stabellini <sstabellini@kernel.org>
Subject: Re: [Xen-devel] [PATCH v2] xen/arm: Cap the number of interrupt lines for dom0
Date: Mon, 8 Apr 2019 11:15:58 +0100 [thread overview]
Message-ID: <e68dfbce-c369-eb90-97a8-894267351c8e@arm.com> (raw)
Message-ID: <20190408101558.gZymaHypsVNQ6dKL4Q3qqvq_4wTVInCMtTJkDXoa06o@z> (raw)
In-Reply-To: <abc8ea85-fe26-46b6-af1a-dcaaa877fd7d@rwthex-w1-a.rwth-ad.de>
Hi Lukas,
On 4/5/19 2:54 PM, Lukas Juenger wrote:
> Dom0 vGIC will use the same number of interrupt lines as the hardware GIC.
> While the hardware GIC can support up to 1020 interrupt lines,
> the vGIC is only supporting up to 992 interrupt lines.
> This means that Xen will not be able to boot on platforms where the hardware
> GIC supports more than 992 interrupt lines.
> While it would make sense to increase the limits in the vGICs, this is not
> trivial because of the design choices.
> At the moment, only models seem to report the maximum of interrupt lines.
> They also do not have any interrupt wired above the 992 limit.
> So it should be fine to cap the number of interrupt lines for dom0 to 992 lines.
>
> Signed-off-by: Lukas Juenger <juenger@ice.rwth-aachen.de>
Acked-by: Julien Grall <julien.grall@arm.com>
Cheers,
--
Julien Grall
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
next prev parent reply other threads:[~2019-04-08 10:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-05 13:54 [PATCH v2] xen/arm: Cap the number of interrupt lines for dom0 Lukas Juenger
2019-04-05 13:54 ` [Xen-devel] " Lukas Juenger
2019-04-08 10:15 ` Julien Grall [this message]
2019-04-08 10:15 ` Julien Grall
2019-04-08 10:24 ` Julien Grall
2019-04-08 10:24 ` [Xen-devel] " Julien Grall
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