linux-kernel - Re: [PATCH v3] dmaengine: idxd: Only call idxd_enable_system_pasid() if succeeded in enabling SVA feature

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Message-ID: <YrfwaC06wZfUTHjH@fyu1.sc.intel.com>
Date:   Sat, 25 Jun 2022 22:36:40 -0700
From:   Fenghua Yu <fenghua.yu@...el.com>
To:     Jerry Snitselaar <jsnitsel@...hat.com>
Cc:     dmaengine@...r.kernel.org, Vinod Koul <vkoul@...nel.org>,
        linux-kernel@...r.kernel.org, Dave Jiang <dave.jiang@...el.com>
Subject: Re: [PATCH v3] dmaengine: idxd: Only call idxd_enable_system_pasid()
 if succeeded in enabling SVA feature

On Sat, Jun 25, 2022 at 10:16:48PM -0700, Jerry Snitselaar wrote:
> On a Sapphire Rapids system if boot without intel_iommu=on, the IDXD
> driver will crash during probe in iommu_sva_bind_device().
> Signed-off-by: Jerry Snitselaar <jsnitsel@...hat.com>

Acked-by: Fenghua Yu <fenghua.yu@...el.com>

Thanks.

-Fenghua