linux-kernel - Re: [PATCH v8 4/5] Drivers: hv: Enable vmbus driver for nested root partition

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Message-ID: <b69f0aa9-3f6e-b1d4-7927-1c807adbbf75@linux.microsoft.com>
Date:   Fri, 9 Dec 2022 10:16:56 -0800
From:   Nuno Das Neves <nunodasneves@...ux.microsoft.com>
To:     Jinank Jain <jinankjain@...ux.microsoft.com>,
        jinankjain@...rosoft.com
Cc:     kys@...rosoft.com, haiyangz@...rosoft.com, wei.liu@...nel.org,
        decui@...rosoft.com, tglx@...utronix.de, mingo@...hat.com,
        bp@...en8.de, dave.hansen@...ux.intel.com, x86@...nel.org,
        hpa@...or.com, arnd@...db.de, peterz@...radead.org,
        jpoimboe@...nel.org, seanjc@...gle.com,
        kirill.shutemov@...ux.intel.com, ak@...ux.intel.com,
        sathyanarayanan.kuppuswamy@...ux.intel.com,
        linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arch@...r.kernel.org, anrayabh@...ux.microsoft.com,
        mikelley@...rosoft.com
Subject: Re: [PATCH v8 4/5] Drivers: hv: Enable vmbus driver for nested root
 partition

On 12/8/2022 9:32 PM, Jinank Jain wrote:
> Currently VMBus driver is not initialized for root partition but we need
> to enable the VMBus driver for nested root partition. This is required,
> so that L2 root can use the VMBus devices.
> 
> Signed-off-by: Jinank Jain <jinankjain@...ux.microsoft.com>
> ---
>  drivers/hv/vmbus_drv.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
> index 0f00d57b7c25..6324e01d5eec 100644
> --- a/drivers/hv/vmbus_drv.c
> +++ b/drivers/hv/vmbus_drv.c
> @@ -2745,7 +2745,7 @@ static int __init hv_acpi_init(void)
>  	if (!hv_is_hyperv_initialized())
>  		return -ENODEV;
>  
> -	if (hv_root_partition)
> +	if (hv_root_partition && !hv_nested)
>  		return 0;
>  
>  	/*
> 

Reviewed-by: Nuno Das Neves <nunodasneves@...ux.microsoft.com>