1 Hi Don,
2 It seems that we agree in the area of keeping the iommu active and
using it to
3 isolate the legacy DMA. We also agree that the device's IO driver
should be
4 the software that deals with the device (e.g.: resets it, etc.)
5
6 It also seems that
On 04/08/2014 12:14 PM, David Woodhouse wrote:
On Mon, 2014-04-07 at 16:43 -0400, Don Dutile wrote:
Additionally, a tidbit of information like some servers force NMI's
on DMAR faults,
and cause a system reset, thereby, preventing a kdump to occur
should have been included as one reason to stop
On Mon, Mar 10, 2014 at 04:43PM, Vivek Goyal wrote:
On Fri, Jan 10, 2014 at 03:07:26PM -0700, Bill Sumner wrote:
[..]
This patch set modifies the behavior of the iommu in the (new) crashdump
kernel:
1. to accept the iommu hardware in an active state, 2. to leave the
current translations
...@vger.kernel.org;
iommu@lists.linux-foundation.org; ddut...@redhat.com; Hatch, Douglas B (HPS
Linux PM); ishii.hiron...@jp.fujitsu.com; bhelg...@google.com; Li, Zhen-Hua
Subject: Re: [PATCHv3 0/6] Crashdump Accepting Active IOMMU
On Mon, Mar 10, 2014 at 04:43PM, Vivek Goyal wrote:
On Fri, Jan 10
Hi Joerg,
On Tue 3/4/2014 9:06 AM, Joerg Roedel wrote:
On Fri, Jan 10, 2014 at 03:07:26PM -0700, Bill Sumner wrote:
Bill Sumner (6):
Crashdump-Accepting-Active-IOMMU-Flags-and-Prototype
Crashdump-Accepting-Active-IOMMU-Utility-functions
On Fri, Jan 10, 2014 at 03:07:26PM -0700, Bill Sumner wrote:
[..]
This patch set modifies the behavior of the iommu in the (new) crashdump
kernel:
1. to accept the iommu hardware in an active state,
2. to leave the current translations in-place so that legacy DMA will continue
using
Hi Bill,
On Fri, Jan 10, 2014 at 03:07:26PM -0700, Bill Sumner wrote:
Bill Sumner (6):
Crashdump-Accepting-Active-IOMMU-Flags-and-Prototype
Crashdump-Accepting-Active-IOMMU-Utility-functions
Crashdump-Accepting-Active-IOMMU-Domain-Interfaces
Tested this patchset on my local HP Z420 workstation, and it works very
well.
Hi Bill,
Thanks for your effort.
There are several concerns from me.
Firstly, I think the patch log need be rearanged. Patchset cover letter
can contain information to express why, how briefly. If you think this
is
v2-v3:
1. Commented-out #define DEBUG 1 to eliminate debug messages
2. Updated the comments about changes in each version in all patches in the set.
3. Fixed: one-line added to Copy-Translations patch to initialize the iovad
struct as recommended by Baoquan He [b...@redhat.com]
