Alex Williamson wrote:
> On Thu, 2012-09-27 at 21:10 +, Mingarelli, Thomas wrote:
>> Alex,
>>
>> Are you suggesting that a solution is to prevent devices with RMRRs
>> from being placed in the SI Domain in the first place (when pt mode is
>> used)?
>
> No, it seems like it's preferable that de
On Thu, 2012-09-27 at 17:50 -0400, Linda Knippers wrote:
> Alex Williamson wrote:
> > On Thu, 2012-09-27 at 21:10 +, Mingarelli, Thomas wrote:
> >> Alex,
> >>
> >> Are you suggesting that a solution is to prevent devices with RMRRs
> >> from being placed in the SI Domain in the first place (whe
I think this sounds like a separate patch.
Tom
-Original Message-
From: Knippers, Linda
Sent: Thursday, September 27, 2012 4:51 PM
To: Alex Williamson
Cc: Mingarelli, Thomas; iommu@lists.linux-foundation.org; Khan, Shuah; Don
Dutile; David Woodhouse
Subject: Re: [PATCH v2] Intel IOMMU
On Thu, 2012-09-27 at 15:34 -0600, Alex Williamson wrote:
> It really seems like RMRRs are incompatible with IOMMU API use though.
> If an RMRR is setup for a VM domain, that's bad because a) it gives the
> VM direct access to that range of host memory, and b) it interferes with
> the guest use of
On Thu, 2012-09-27 at 21:10 +, Mingarelli, Thomas wrote:
> Alex,
>
> Are you suggesting that a solution is to prevent devices with RMRRs
> from being placed in the SI Domain in the first place (when pt mode is
> used)?
No, it seems like it's preferable that devices with RMRRs stay in the si
d
Alex,
Are you suggesting that a solution is to prevent devices with RMRRs from being
placed in the SI Domain in the first place (when pt mode is used)?
Tom
-Original Message-
From: Alex Williamson [mailto:alex.william...@redhat.com]
Sent: Thursday, September 27, 2012 3:37 PM
To: Minga
[adding David Woodhouse]
On Tue, 2012-09-18 at 16:49 +, Tom Mingarelli wrote:
> When a 32bit PCI device is removed from the SI Domain, the RMRR information
> for this device becomes invalid and needs to be reprocessed to avoid DMA
> Read errors. These errors are evidenced by the Present bit be
Am Wed, 26 Sep 2012 16:04:03 -0600
schrieb Alex Williamson :
> On Wed, 2012-09-26 at 13:50 -0600, Alex Williamson wrote:
> > On Wed, 2012-09-26 at 10:21 -0600, Alex Williamson wrote:
> > > On Wed, 2012-09-26 at 17:10 +0200, Roedel, Joerg wrote:
> > > > On Wed, Sep 26, 2012 at 08:35:59AM -0600, Ale
