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From:   Nadav Amit <nadav.amit@gmail.com>
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Subject: Re: [PATCH v2] iommu/vt-d: Force to flush iotlb before creating
 superpage
Date:   Fri, 30 Apr 2021 15:50:14 -0700
In-Reply-To: <YHhJ/0b5i55zGib7@8bytes.org>
Cc:     "Longpeng(Mike)" <longpeng2@huawei.com>,
        iommu@lists.linux-foundation.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        David Woodhouse <dwmw2@infradead.org>,
        Lu Baolu <baolu.lu@linux.intel.com>,
        Alex Williamson <alex.williamson@redhat.com>,
        Kevin Tian <kevin.tian@intel.com>,
        Gonglei <arei.gonglei@huawei.com>, stable@vger.kernel.org
To:     Joerg Roedel <joro@8bytes.org>
References: <20210415004628.1779-1-longpeng2@huawei.com>
 <YHhJ/0b5i55zGib7@8bytes.org>
Precedence: bulk


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> On Apr 15, 2021, at 7:13 AM, Joerg Roedel <joro@8bytes.org> wrote:
>=20
> On Thu, Apr 15, 2021 at 08:46:28AM +0800, Longpeng(Mike) wrote:
>> Fixes: 6491d4d02893 ("intel-iommu: Free old page tables before =
creating superpage")
>> Cc: <stable@vger.kernel.org> # v3.0+
>> Link: =
https://lore.kernel.org/linux-iommu/670baaf8-4ff8-4e84-4be3-030b95ab5a5e@h=
uawei.com/
>> Suggested-by: Lu Baolu <baolu.lu@linux.intel.com>
>> Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
>> ---
>> v1 -> v2:
>>  - add Joerg
>>  - reconstruct the solution base on the Baolu's suggestion
>> ---
>> drivers/iommu/intel/iommu.c | 52 =
+++++++++++++++++++++++++++++++++------------
>> 1 file changed, 38 insertions(+), 14 deletions(-)
>=20
> Applied, thanks.
>=20

Err.. There is a bug in my patch, and some other problem. I will
investigate and get back to you.


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