Hi Baolu,
> -Original Message-
> From: Lu Baolu [mailto:baolu...@linux.intel.com]
> Sent: Thursday, April 8, 2021 12:32 PM
> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
> ; io...@lists.linux-foundation.org;
> linux-kernel@vger.kernel.org
> Cc: bao
Hi Baolu,
> -Original Message-
> From: Lu Baolu [mailto:baolu...@linux.intel.com]
> Sent: Friday, April 2, 2021 12:44 PM
> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
> ; io...@lists.linux-foundation.org;
> linux-kernel@vger.kernel.org
> Cc: bao
Hi Baolu,
在 2021/4/2 11:06, Lu Baolu 写道:
> Hi Longpeng,
>
> On 4/1/21 3:18 PM, Longpeng(Mike) wrote:
>> The translation caches may preserve obsolete data when the
>> mapping size is changed, suppose the following sequence which
>> can reveal the problem with high probability.
>>
>>
> -Original Message-
> From: Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
> Sent: Monday, March 22, 2021 7:51 AM
> To: 'Nadav Amit'
> Cc: Tian, Kevin ; chenjiashang
> ; David Woodhouse ;
> io...@lists.linux-foundation.org; LKML ;
> alex.willia
Hi Nadav,
> -Original Message-
> From: Nadav Amit [mailto:nadav.a...@gmail.com]
> Sent: Friday, March 19, 2021 12:46 AM
> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
>
> Cc: Tian, Kevin ; chenjiashang
> ; David Woodhouse ;
> io...@lists.li
> -Original Message-
> From: Tian, Kevin [mailto:kevin.t...@intel.com]
> Sent: Thursday, March 18, 2021 4:56 PM
> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
> ; Nadav Amit
> Cc: chenjiashang ; David Woodhouse
> ; io...@lists.linux
> -Original Message-
> From: Tian, Kevin [mailto:kevin.t...@intel.com]
> Sent: Thursday, March 18, 2021 4:43 PM
> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
> ; Nadav Amit
> Cc: chenjiashang ; David Woodhouse
> ; io...@lists.linux
> -Original Message-
> From: Tian, Kevin [mailto:kevin.t...@intel.com]
> Sent: Thursday, March 18, 2021 4:27 PM
> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
> ; Nadav Amit
> Cc: chenjiashang ; David Woodhouse
> ; io...@lists.linux
Hi Nadav,
> -Original Message-
> From: Nadav Amit [mailto:nadav.a...@gmail.com]
> Sent: Thursday, March 18, 2021 2:13 AM
> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
>
> Cc: David Woodhouse ; Lu Baolu
> ; Joerg Roedel ; w...@kernel.org;
> al
Hi guys,
I provide more information, please see below
> -Original Message-
> From: Lu Baolu [mailto:baolu...@linux.intel.com]
> Sent: Thursday, March 18, 2021 10:59 AM
> To: Alex Williamson
> Cc: baolu...@linux.intel.com; Longpeng (Mike, Cloud Infrastructure Service
&
Hi Baolu,
> -Original Message-
> From: Lu Baolu [mailto:baolu...@linux.intel.com]
> Sent: Wednesday, March 17, 2021 1:17 PM
> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
> ; dw...@infradead.org; j...@8bytes.org;
> w...@kernel.org; alex.william...@redh
Hi Nadav,
> -Original Message-
> From: Nadav Amit [mailto:nadav.a...@gmail.com]
> Sent: Wednesday, March 17, 2021 1:46 PM
> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
>
> Cc: David Woodhouse ; Lu Baolu
> ; Joerg Roedel ; w...@kernel.org;
> al
Hi guys,
We find the Intel iommu cache (i.e. iotlb) maybe works wrong in a special
situation, it would cause DMA fails or get wrong data.
The reproducer (based on Alex's vfio testsuite[1]) is in attachment, it can
reproduce the problem with high probability (~50%).
The machine we used is:
在 2021/1/20 18:27, Paraschiv, Andra-Irina 写道:
>
>
> On 19/01/2021 05:30, Longpeng(Mike) wrote:
>> According the PCI spec:
>> Bus Master Enable – Controls the ability of a PCI Express
>> Endpoint to issue Memory and I/O Read/Write Requests, and
>> the ability of a Root or Switch Port
On 2020/6/5 22:10, Sasha Levin wrote:
> <20200123101000.GB24255@Red>
> References: <20200602070501.2023-2-longpe...@huawei.com>
> <20200123101000.GB24255@Red>
>
> Hi
>
> [This is an automated email]
>
> This commit has been processed because it contains a "Fixes:" tag
> fixing commit:
On 2020/5/31 17:21, Michael S. Tsirkin wrote:
> On Tue, May 26, 2020 at 02:11:37PM +, Sasha Levin wrote:
>> <20200123101000.GB24255@Red>
>> References: <20200526031956.1897-3-longpe...@huawei.com>
>> <20200123101000.GB24255@Red>
>>
>> Hi
>>
>> [This is an automated email]
>>
>> This commit
On 2020/5/26 17:01, Markus Elfring wrote:
… Thus release specific resources before
>>>
>>> Is there a need to improve also this information another bit?
>>>
>> You mean the last two paragraph is redundant ?
>
> No.
>
> I became curious if you would like to choose a more helpful
Hi Markus,
On 2020/5/26 15:19, Markus Elfring wrote:
>> The system'll crash when the users insmod crypto/tcrypto.ko with mode=155
>> ( testing "authenc(hmac(sha1),cbc(aes))" ). It's caused by reuse the memory
>> of request structure.
>
> Wording adjustments:
> * … system will crash …
> * … It is
Hi Markus,
On 2020/5/26 15:03, Markus Elfring wrote:
>> Fix it by sg_next() on calculation of src/dst scatterlist.
>
> Wording adjustment:
> … by calling the function “sg_next” …
>
OK, thanks.
>
> …
>> +++ b/drivers/crypto/virtio/virtio_crypto_algs.c
>> @@ -350,13 +350,18 @@
On 2020/5/25 15:36, Markus Elfring wrote:
>> Could you help me to make the sentence better?
>
> How do you think about a wording variant like the following?
>
> So the system will crash when this memory will be used again.
>
Uh, it's much better, thanks.
>
>>> * You proposed to move a
Hi Markus,
On 2020/5/25 14:30, Markus Elfring wrote:
>> … So the system will crash
>> at last when this memory be used again.
>
> I would prefer a wording with less typos here.
>
Could you help me to make the sentence better?
>
>> We can free the resources before calling ->complete to fix
Hi Markus,
On 2020/5/25 14:05, Markus Elfring wrote:
>> The system will crash when we insmod crypto/tcrypt.ko whit mode=38.
>
> * I suggest to use the word “with” in this sentence.
>
OK, it's a typo.
> * Will it be helpful to explain the passed mode number?
>
>
>> BTW I add a check for
Hi Jason,
On 2020/5/25 11:12, Jason Wang wrote:
>
> On 2020/5/25 上午8:56, Longpeng(Mike) wrote:
>> The system will crash when we insmod crypto/tcrypt.ko whit mode=38.
>>
>> Usually the next entry of one sg will be @sg@ + 1, but if this sg element
>> is part of a chained scatterlist, it could jump
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