linux-kernel - Re: [PATCH v8 3/3] irqchip/loongson-eiointc: Add extioi virt extension support

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Message-ID: <878qv6y631.ffs@tglx>
Date: Wed, 02 Oct 2024 15:42:10 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: Huacai Chen <chenhuacai@...nel.org>, Bibo Mao <maobibo@...ngson.cn>
Cc: Tianrui Zhao <zhaotianrui@...ngson.cn>, WANG Xuerui <kernel@...0n.name>,
 kvm@...r.kernel.org, loongarch@...ts.linux.dev,
 linux-kernel@...r.kernel.org, virtualization@...ts.linux.dev,
 x86@...nel.org, Song Gao <gaosong@...ngson.cn>
Subject: Re: [PATCH v8 3/3] irqchip/loongson-eiointc: Add extioi virt
 extension support

On Wed, Sep 11 2024 at 17:11, Huacai Chen wrote:
> Hi, Thomas,
>
> On Fri, Aug 30, 2024 at 5:32 PM Bibo Mao <maobibo@...ngson.cn> wrote:
>>
>> Interrupts can be routed to maximal four virtual CPUs with one HW
>> EIOINTC interrupt controller model, since interrupt routing is encoded with
>> CPU bitmap and EIOINTC node combined method. Here add the EIOINTC virt
>> extension support so that interrupts can be routed to 256 vCPUs on
>> hypervisor mode. CPU bitmap is replaced with normal encoding and EIOINTC
>> node type is removed, so there are 8 bits for cpu selection, at most 256
>> vCPUs are supported for interrupt routing.
> This patch is OK for me now, but seems it depends on the first two,
> and the first two will get upstream via loongarch-kvm tree. So is that
> possible to also apply this one to loongarch-kvm with your Acked-by?

Go ahead.

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>