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From: Dave Young <dyoung@redhat.com>
To: "Li, ZhenHua" <zhen-hual@hp.com>
Cc: dwmw2@infradead.org, indou.takao@jp.fujitsu.com, bhe@redhat.com,
	joro@8bytes.org, vgoyal@redhat.com,
	iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
	linux-pci@vger.kernel.org, kexec@lists.infradead.org,
	alex.williamson@redhat.com, ddutile@redhat.com,
	ishii.hironobu@jp.fujitsu.com, bhelgaas@google.com,
	doug.hatch@hp.com, jerry.hoemann@hp.com, tom.vaden@hp.com,
	li.zhang6@hp.com, lisa.mitchell@hp.com,
	billsumnerlinux@gmail.com, rwright@hp.com
Subject: Re: [PATCH v11 05/10] iommu/vt-d: Add functions to load and save old re
Date: Wed, 13 May 2015 16:49:40 +0800	[thread overview]
Message-ID: <20150513084940.GP4561@localhost.localdomain> (raw)
In-Reply-To: <5552AD1B.6030208@hp.com>

On 05/13/15 at 09:47am, Li, ZhenHua wrote:
> On 05/12/2015 04:37 PM, Dave Young wrote:
> >Seems the subject was truncated? Maybe "re" means root entry? Then please fix it
> >
> >On 05/11/15 at 05:52pm, Li, Zhen-Hua wrote:
> >>Add functions to load root entry table from old kernel, and to save updated
> >>root entry table.
> >>Add two member in struct intel_iommu, to store the RTA in old kernel, and
> >>the mapped virt address of it.
> >
> >Please explain a bit what is "RTA" in patch log, it is unclear to most of people
> >who do not know iommu details.
> >
> >>
> 
> If people want to understand this patchset, I assume they have read the vt-d
> specs. RTA is defined clearly in this spec.
> 

I think explain a bit is better, it will be easier for review, RTA is defined in spec,
right, but if you refer to it in kernel source code, describe the meaning will help
people to understand your code.

I would not stick on this 'RTA', but a descriptive subject and patch log is still
important, please check the logs, not only for this patch.

Thanks
Dave

WARNING: multiple messages have this Message-ID (diff)
From: Dave Young <dyoung@redhat.com>
To: "Li, ZhenHua" <zhen-hual@hp.com>
Cc: alex.williamson@redhat.com, indou.takao@jp.fujitsu.com,
	bhe@redhat.com, tom.vaden@hp.com, rwright@hp.com,
	linux-pci@vger.kernel.org, joro@8bytes.org,
	kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
	lisa.mitchell@hp.com, jerry.hoemann@hp.com,
	iommu@lists.linux-foundation.org, ddutile@redhat.com,
	doug.hatch@hp.com, ishii.hironobu@jp.fujitsu.com,
	bhelgaas@google.com, billsumnerlinux@gmail.com, li.zhang6@hp.com,
	dwmw2@infradead.org, vgoyal@redhat.com
Subject: Re: [PATCH v11 05/10] iommu/vt-d: Add functions to load and save old re
Date: Wed, 13 May 2015 16:49:40 +0800	[thread overview]
Message-ID: <20150513084940.GP4561@localhost.localdomain> (raw)
In-Reply-To: <5552AD1B.6030208@hp.com>

On 05/13/15 at 09:47am, Li, ZhenHua wrote:
> On 05/12/2015 04:37 PM, Dave Young wrote:
> >Seems the subject was truncated? Maybe "re" means root entry? Then please fix it
> >
> >On 05/11/15 at 05:52pm, Li, Zhen-Hua wrote:
> >>Add functions to load root entry table from old kernel, and to save updated
> >>root entry table.
> >>Add two member in struct intel_iommu, to store the RTA in old kernel, and
> >>the mapped virt address of it.
> >
> >Please explain a bit what is "RTA" in patch log, it is unclear to most of people
> >who do not know iommu details.
> >
> >>
> 
> If people want to understand this patchset, I assume they have read the vt-d
> specs. RTA is defined clearly in this spec.
> 

I think explain a bit is better, it will be easier for review, RTA is defined in spec,
right, but if you refer to it in kernel source code, describe the meaning will help
people to understand your code.

I would not stick on this 'RTA', but a descriptive subject and patch log is still
important, please check the logs, not only for this patch.

Thanks
Dave

_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

  reply	other threads:[~2015-05-13  8:50 UTC|newest]

Thread overview: 138+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-11  9:52 [PATCH v11 0/10] iommu/vt-d: Fix intel vt-d faults in kdump kernel Li, Zhen-Hua
2015-05-11  9:52 ` Li, Zhen-Hua
2015-05-11  9:52 ` Li, Zhen-Hua
2015-05-11  9:52 ` [PATCH v11 01/10] iommu/vt-d: New function to attach domain with id Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52 ` [PATCH v11 02/10] iommu/vt-d: Items required for kdump Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-12  8:17   ` Dave Young
2015-05-12  8:17     ` Dave Young
2015-05-13  1:45     ` Li, ZhenHua
2015-05-13  1:45       ` Li, ZhenHua
2015-05-13  6:31       ` Alexander Duyck
2015-05-13  6:31         ` Alexander Duyck
2015-05-13  8:42       ` Dave Young
2015-05-13  8:42         ` Dave Young
2015-05-13  8:42         ` Dave Young
2015-05-11  9:52 ` [PATCH v11 03/10] iommu/vt-d: Function to get existing context entry Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52 ` [PATCH v11 04/10] iommu/vt-d: functions to copy data from old mem Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-12  8:29   ` Dave Young
2015-05-12  8:29     ` Dave Young
2015-05-12  8:29     ` Dave Young
2015-05-13  9:00   ` Baoquan He
2015-05-13  9:00     ` Baoquan He
2015-05-13  9:13     ` Li, ZhenHua
2015-05-13  9:13       ` Li, ZhenHua
2015-05-13  9:21       ` Baoquan He
2015-05-13  9:21         ` Baoquan He
2015-06-08 14:15   ` David Woodhouse
2015-06-08 14:15     ` David Woodhouse
2015-06-08 15:21     ` Joerg Roedel
2015-06-08 15:21       ` Joerg Roedel
2015-06-08 15:44       ` David Woodhouse
2015-06-08 15:44         ` David Woodhouse
2015-05-11  9:52 ` [PATCH v11 05/10] iommu/vt-d: Add functions to load and save old re Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-12  8:37   ` Dave Young
2015-05-12  8:37     ` Dave Young
2015-05-12  8:37     ` Dave Young
2015-05-13  1:47     ` Li, ZhenHua
2015-05-13  1:47       ` Li, ZhenHua
2015-05-13  1:47       ` Li, ZhenHua
2015-05-13  8:49       ` Dave Young [this message]
2015-05-13  8:49         ` Dave Young
2015-05-11  9:52 ` [PATCH v11 06/10] iommu/vt-d: datatypes and functions used for kdump Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-12  8:48   ` Dave Young
2015-05-12  8:48     ` Dave Young
2015-05-13  8:56   ` Baoquan He
2015-05-13  8:56     ` Baoquan He
2015-05-13  8:56     ` Baoquan He
2015-05-13  8:58     ` Li, ZhenHua
2015-05-13  8:58       ` Li, ZhenHua
2015-05-13  8:58       ` Li, ZhenHua
2015-05-13  9:10       ` Baoquan He
2015-05-13  9:10         ` Baoquan He
2015-05-13  9:10         ` Baoquan He
2015-05-11  9:52 ` [PATCH v11 07/10] iommu/vt-d: enable kdump support in iommu module Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-12  8:52   ` Dave Young
2015-05-12  8:52     ` Dave Young
2015-05-12  8:52     ` Dave Young
2015-05-13  2:10   ` Baoquan He
2015-05-13  2:10     ` Baoquan He
2015-05-13  2:28     ` Li, ZhenHua
2015-05-13  2:28       ` Li, ZhenHua
2015-05-13  2:36       ` Baoquan He
2015-05-13  2:36         ` Baoquan He
2015-05-11  9:52 ` [PATCH v11 08/10] iommu/vt-d: assign new page table for dma_map Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-20 23:52   ` Baoquan He
2015-05-20 23:52     ` Baoquan He
2015-05-21  1:27     ` Li, ZhenHua
2015-05-21  1:27       ` Li, ZhenHua
2015-05-21  6:54       ` Baoquan He
2015-05-21  6:54         ` Baoquan He
2015-05-21  8:40         ` Li, ZhenHua
2015-05-21  8:40           ` Li, ZhenHua
2015-05-21  8:40           ` Li, ZhenHua
2015-05-21 10:11           ` Baoquan He
2015-05-11  9:52 ` [PATCH v11 09/10] iommu/vt-d: Copy functions for irte Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-12  9:00   ` Dave Young
2015-05-12  9:00     ` Dave Young
2015-05-11  9:52 ` [PATCH v11 10/10] iommu/vt-d: Use old irte in kdump kernel Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-11  9:52   ` Li, Zhen-Hua
2015-05-12  6:18 ` [PATCH v11 0/10] iommu/vt-d: Fix intel vt-d faults " Baoquan He
2015-05-12  6:18   ` Baoquan He
2015-05-12  6:18   ` Baoquan He
2015-05-12  9:04 ` Dave Young
2015-05-12  9:04   ` Dave Young
2015-05-12  9:04   ` Dave Young
2015-05-12  9:34 ` Li, Zhen-Hua
2015-05-12  9:34   ` Li, Zhen-Hua
2015-05-12  9:34   ` Li, Zhen-Hua
2015-05-13  1:54 ` Li, ZhenHua
2015-05-13  1:54   ` Li, ZhenHua
2015-05-18 10:05   ` Li, ZhenHua
2015-05-18 10:05     ` Li, ZhenHua
2015-05-18 10:05     ` Li, ZhenHua
2015-05-19  1:13     ` Dave Young
2015-05-19  1:13       ` Dave Young
2015-05-19  7:43       ` Li, ZhenHua
2015-05-19  7:43         ` Li, ZhenHua
2015-05-29 16:21 ` Joerg Roedel
2015-05-30 11:23   ` Li, Zhen-Hua
2015-05-30 11:23     ` Li, Zhen-Hua
2015-05-30 11:23     ` Li, Zhen-Hua
2015-05-30 11:23     ` Li, Zhen-Hua
2015-06-08 14:26 ` David Woodhouse
2015-06-08 14:26   ` David Woodhouse
2015-06-08 14:26   ` David Woodhouse
2015-06-08 15:29   ` Joerg Roedel
2015-06-08 15:29     ` Joerg Roedel
2015-06-08 15:50     ` David Woodhouse
2015-06-08 15:50       ` David Woodhouse
2015-06-08 15:50       ` David Woodhouse
2015-06-08 16:13       ` Joerg Roedel
2015-06-09 12:55         ` David Woodhouse
2015-06-09 12:55           ` David Woodhouse
2015-06-10  9:21           ` Joerg Roedel
2015-06-10  9:32             ` Li, ZhenHua
2015-06-10  9:32               ` Li, ZhenHua
2015-06-10  9:32               ` Li, ZhenHua
2015-06-10 14:10               ` David Woodhouse
2015-06-10 14:10                 ` David Woodhouse
2015-06-10 14:10                 ` David Woodhouse

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