[PATCH V2] irqchip/gic-v4.1:Check whether indirect table is supported in allocate_vpe_l1_table

[Marc Zyngier]

On Thu, 18 Sep 2025 15:15:57 +0100,
Nianyao Tang <tangnianyao at huawei.com> wrote:
> 
> In allocate_vpe_l1_table, it allocates a new vpe table without checking
> whether indirect table is supported.
> ARM allows vendors to support only flat tables. Let's first check if
> indirect tables are supported before using it.
> 
> Signed-off-by: Nianyao Tang <tangnianyao at huawei.com>

As I understand it, this is for the same machines that also requires
[1] and [2] to be able to use vLPIs and vSGIs.

I seriously doubt that we want *any* of it (creating userspace ABI to
deal with a broken design is not something I'm keen on).

Frankly, you should consider disabling GICv4.1 on these machines, and
stick with GICv3 (which I assume works correctly).

Thanks,

	M.

[1] https://lore.kernel.org/r/20250825023954.3516381-1-wangzhou1@hisilicon.com
[2] https://lore.kernel.org/r/20250909110615.129179-1-wangzhou1@hisilicon.com

-- 
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