> -Original Message-
> From: Jan Beulich
> Sent: 10 December 2019 09:45
> To: Durrant, Paul
> Cc: Jürgen Groß ; Tian, Kevin ;
> Andrew Cooper ; xen-devel@lists.xenproject.org;
> Roger Pau Monné ; Wei Liu
> Subject: Re: [PATCH v2] x86 / iommu: set up a scratch page in the
> quarantine
On 10.12.2019 10:16, Durrant, Paul wrote:
>> -Original Message-
>> From: Jürgen Groß
>> Sent: 10 December 2019 09:07
>> To: Jan Beulich
>> Cc: Tian, Kevin ; Durrant, Paul
>> ; Andrew Cooper ; xen-
>> de...@lists.xenproject.org; Roger Pau Monné ; Wei
>> Liu
>> Subject: Re: [PATCH v2] x86
> -Original Message-
> From: Jürgen Groß
> Sent: 10 December 2019 09:07
> To: Jan Beulich
> Cc: Tian, Kevin ; Durrant, Paul
> ; Andrew Cooper ; xen-
> de...@lists.xenproject.org; Roger Pau Monné ; Wei
> Liu
> Subject: Re: [PATCH v2] x86 / iommu: set up a scratch page in the
> quarantine
On 10.12.19 09:57, Jan Beulich wrote:
On 10.12.2019 09:12, Jürgen Groß wrote:
On 10.12.19 09:05, Jan Beulich wrote:
On 10.12.2019 08:16, Tian, Kevin wrote:
While the quarantine idea sounds good overall, I'm still not convinced
to have it the only way in place just for handling some
On 10.12.2019 09:12, Jürgen Groß wrote:
> On 10.12.19 09:05, Jan Beulich wrote:
>> On 10.12.2019 08:16, Tian, Kevin wrote:
>>> While the quarantine idea sounds good overall, I'm still not convinced
>>> to have it the only way in place just for handling some known-buggy
>>> device. It kills the
> -Original Message-
> From: Jürgen Groß
> Sent: 10 December 2019 08:12
> To: Jan Beulich ; Tian, Kevin ;
> Durrant, Paul
> Cc: Andrew Cooper ; xen-
> de...@lists.xenproject.org; Roger Pau Monné ; Wei
> Liu
> Subject: Re: [PATCH v2] x86 / iommu: set up a scratch page in the
> quarantine
On 10.12.19 09:05, Jan Beulich wrote:
On 10.12.2019 08:16, Tian, Kevin wrote:
From: Jan Beulich
Sent: Tuesday, December 3, 2019 5:36 PM
On 28.11.2019 12:32, Jürgen Groß wrote:
On 28.11.19 12:17, Jan Beulich wrote:
On 27.11.2019 18:11, Paul Durrant wrote:
This patch introduces a new
On 10.12.2019 08:16, Tian, Kevin wrote:
>> From: Jan Beulich
>> Sent: Tuesday, December 3, 2019 5:36 PM
>>
>> On 28.11.2019 12:32, Jürgen Groß wrote:
>>> On 28.11.19 12:17, Jan Beulich wrote:
On 27.11.2019 18:11, Paul Durrant wrote:
> This patch introduces a new iommu_op to facilitate a
> From: Jan Beulich
> Sent: Tuesday, December 3, 2019 5:36 PM
>
> On 28.11.2019 12:32, Jürgen Groß wrote:
> > On 28.11.19 12:17, Jan Beulich wrote:
> >> On 27.11.2019 18:11, Paul Durrant wrote:
> >>> This patch introduces a new iommu_op to facilitate a per-
> implementation
> >>> quarantine set
On 28.11.2019 12:32, Jürgen Groß wrote:
> On 28.11.19 12:17, Jan Beulich wrote:
>> On 27.11.2019 18:11, Paul Durrant wrote:
>>> This patch introduces a new iommu_op to facilitate a per-implementation
>>> quarantine set up, and then further code for x86 implementations
>>> (amd and vtd) to set up a
On 28.11.19 12:17, Jan Beulich wrote:
On 27.11.2019 18:11, Paul Durrant wrote:
This patch introduces a new iommu_op to facilitate a per-implementation
quarantine set up, and then further code for x86 implementations
(amd and vtd) to set up a read-only scratch page to serve as the source
for DMA
On 27.11.2019 18:11, Paul Durrant wrote:
> This patch introduces a new iommu_op to facilitate a per-implementation
> quarantine set up, and then further code for x86 implementations
> (amd and vtd) to set up a read-only scratch page to serve as the source
> for DMA reads whilst a device is
This patch introduces a new iommu_op to facilitate a per-implementation
quarantine set up, and then further code for x86 implementations
(amd and vtd) to set up a read-only scratch page to serve as the source
for DMA reads whilst a device is assigned to dom_io. DMA writes will
continue to fault as
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