Hi Jan,
> -Original Message-
> From: Jan Beulich
> Sent: 2022年1月19日 15:50
> To: Wei Chen
> Cc: Bertrand Marquis ; xen-
> de...@lists.xenproject.org; sstabell...@kernel.org; jul...@xen.org
> Subject: Re: [PATCH 04/37] xen: introduce an arch helper for default dma
On 19.01.2022 03:49, Wei Chen wrote:
> Hi Jan,
>
>> -Original Message-
>> From: Jan Beulich
>> Sent: 2022年1月18日 22:16
>> To: Wei Chen
>> Cc: Bertrand Marquis ; xen-
>> de...@lists.xenproject.org; sstabell...@kernel.org; jul...@xen.org
>> S
Hi Jan,
> -Original Message-
> From: Jan Beulich
> Sent: 2022年1月18日 22:16
> To: Wei Chen
> Cc: Bertrand Marquis ; xen-
> de...@lists.xenproject.org; sstabell...@kernel.org; jul...@xen.org
> Subject: Re: [PATCH 04/37] xen: introduce an arch helper for default dma
On 18.01.2022 10:20, Wei Chen wrote:
>> From: Jan Beulich
>> Sent: 2022年1月18日 16:16
>>
>> On 18.01.2022 08:51, Wei Chen wrote:
From: Jan Beulich
Sent: 2022年1月18日 0:11
On 23.09.2021 14:02, Wei Chen wrote:
> In current code, when Xen is running in a multiple nodes NUMA
> syst
Hi Jan,
> -Original Message-
> From: Jan Beulich
> Sent: 2022年1月18日 16:16
> To: Wei Chen
> Cc: Bertrand Marquis ; xen-
> de...@lists.xenproject.org; sstabell...@kernel.org; jul...@xen.org
> Subject: Re: [PATCH 04/37] xen: introduce an arch helper for default dma
On 18.01.2022 08:51, Wei Chen wrote:
>> -Original Message-
>> From: Jan Beulich
>> Sent: 2022年1月18日 0:11
>> On 23.09.2021 14:02, Wei Chen wrote:
>>> In current code, when Xen is running in a multiple nodes NUMA
>>> system, it will set dma_bitsize in end_boot_allocator to reserve
>>> some l
Hi Jan,
> -Original Message-
> From: Jan Beulich
> Sent: 2022年1月18日 0:11
> To: Wei Chen
> Cc: Bertrand Marquis ; xen-
> de...@lists.xenproject.org; sstabell...@kernel.org; jul...@xen.org
> Subject: Re: [PATCH 04/37] xen: introduce an arch helper for default dma
I realize this series has been pending for a long time, but I don't
recall any indication that it would have been dropped. Hence as a
first try, a few comments on this relatively simple change. I'm
sorry it to have taken so long to get to it.
On 23.09.2021 14:02, Wei Chen wrote:
> In current code,
Hi Stefano,
> -Original Message-
> From: Stefano Stabellini
> Sent: 2021年9月24日 7:56
> To: Wei Chen
> Cc: xen-devel@lists.xenproject.org; sstabell...@kernel.org; jul...@xen.org;
> Bertrand Marquis
> Subject: Re: [PATCH 04/37] xen: introduce an arch helper for defa
On Thu, 23 Sep 2021, Wei Chen wrote:
> In current code, when Xen is running in a multiple nodes NUMA
> system, it will set dma_bitsize in end_boot_allocator to reserve
> some low address memory for DMA.
>
> There are some x86 implications in current implementation. Becuase
In current code, when Xen is running in a multiple nodes NUMA
system, it will set dma_bitsize in end_boot_allocator to reserve
some low address memory for DMA.
There are some x86 implications in current implementation. Becuase
on x86, memory starts from 0. On a multiple nodes NUMA system, if
a sin
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