linux-kernel - Re: [RFC PATCH v3 2/4] vfio: Introduce vGPU display irq type

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Message-ID: <20190627062043.63wpwgefbsnackbg@sirius.home.kraxel.org>
Date:   Thu, 27 Jun 2019 08:20:43 +0200
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     Tina Zhang <tina.zhang@...el.com>
Cc:     intel-gvt-dev@...ts.freedesktop.org, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, zhenyuw@...ux.intel.com,
        zhiyuan.lv@...el.com, zhi.a.wang@...el.com, kevin.tian@...el.com,
        hang.yuan@...el.com, alex.williamson@...hat.com
Subject: Re: [RFC PATCH v3 2/4] vfio: Introduce vGPU display irq type

On Thu, Jun 27, 2019 at 11:38:00AM +0800, Tina Zhang wrote:
> Introduce vGPU specific irq type VFIO_IRQ_TYPE_GFX, and
> VFIO_IRQ_SUBTYPE_GFX_DISPLAY_IRQ as the subtype for vGPU display
> 
> Signed-off-by: Tina Zhang <tina.zhang@...el.com>
> ---
>  include/uapi/linux/vfio.h | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
> index 600784acc4ac..c3e9c821a5cb 100644
> --- a/include/uapi/linux/vfio.h
> +++ b/include/uapi/linux/vfio.h
> @@ -465,6 +465,9 @@ struct vfio_irq_info_cap_type {
>  	__u32 subtype;  /* type specific */
>  };
>  
> +#define VFIO_IRQ_TYPE_GFX				(1)
> +#define VFIO_IRQ_SUBTYPE_GFX_DISPLAY_IRQ		(1)

VFIO_IRQ_TYPE_GFX_VBLANK ?

cheers,
  Gerd