From: Greg KH <gregkh@linuxfoundation.org>
To: Xiaolin Zhang <xiaolin.zhang@intel.com>
Cc: intel-gvt-dev@lists.freedesktop.org, stable@vger.kernel.org
Subject: Re: [PATCH] drm/i915/gvt: fix incorrect cache entry for guest page mapping
Date: Wed, 17 Jul 2019 16:55:07 +0900 [thread overview]
Message-ID: <20190717075507.GA14238@kroah.com> (raw)
In-Reply-To: <1563378987-21880-1-git-send-email-xiaolin.zhang@intel.com>
On Wed, Jul 17, 2019 at 11:56:27PM +0800, Xiaolin Zhang wrote:
> GPU hang observed during the guest OCL conformance test which is caused
> by THP GTT feature used durning the test.
>
> It was observed the same GFN with different size (4K and 2M) requested
> from the guest in GVT. So during the guest page dma map stage, it is
> required to unmap first with orginal size and then remap again with
> requested size.
>
> Fixes: b901b252b6cf ("drm/i915/gvt: Add 2M huge gtt support")
> Signed-off-by: Xiaolin Zhang <xiaolin.zhang@intel.com>
> ---
> drivers/gpu/drm/i915/gvt/kvmgt.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
next prev parent reply other threads:[~2019-07-17 7:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-17 15:56 [PATCH] drm/i915/gvt: fix incorrect cache entry for guest page mapping Xiaolin Zhang
2019-07-17 7:55 ` Greg KH [this message]
2019-07-17 8:08 ` Zhang, Xiaolin
-- strict thread matches above, loose matches on Subject: below --
2019-07-17 17:10 Xiaolin Zhang
2019-07-18 3:05 ` Zhenyu Wang
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