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From: Joerg Roedel <joro@8bytes.org>
To: Nadav Amit <namit@vmware.com>
Cc: "iommu@lists.linux-foundation.org"
	<iommu@lists.linux-foundation.org>, Will Deacon <will@kernel.org>,
	Jiajun Cao <caojiajun@vmware.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] iommu/amd: page-specific invalidations for more than one page
Date: Thu, 8 Apr 2021 09:18:48 +0200	[thread overview]
Message-ID: <YG6uWFAS6GCWJPGO@8bytes.org> (raw)
In-Reply-To: <71C74038-943D-4041-B6FF-09A8C40CA204@vmware.com>

Hi Nadav,

On Wed, Apr 07, 2021 at 05:57:31PM +0000, Nadav Amit wrote:
> I tested it on real bare-metal hardware. I ran some basic I/O workloads
> with the IOMMU enabled, checkers enabled/disabled, and so on.
> 
> However, I only tested the IOMMU-flushes and I did not test that the
> device-IOTLB flush work, since I did not have the hardware for that.
> 
> If you can refer me to the old patches, I will have a look and see
> whether I can see a difference in the logic or test them. If you want
> me to run different tests - let me know. If you want me to remove
> the device-IOTLB invalidations logic - that is also fine with me.

Here is the patch-set, it is from 2010 and against a very old version of
the AMD IOMMU driver:

	https://lore.kernel.org/lkml/1265898797-32183-1-git-send-email-joerg.roedel@amd.com/

Regards,

	Joerg
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

WARNING: multiple messages have this Message-ID (diff)
From: Joerg Roedel <joro@8bytes.org>
To: Nadav Amit <namit@vmware.com>
Cc: Will Deacon <will@kernel.org>, Jiajun Cao <caojiajun@vmware.com>,
	"iommu@lists.linux-foundation.org"
	<iommu@lists.linux-foundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] iommu/amd: page-specific invalidations for more than one page
Date: Thu, 8 Apr 2021 09:18:48 +0200	[thread overview]
Message-ID: <YG6uWFAS6GCWJPGO@8bytes.org> (raw)
In-Reply-To: <71C74038-943D-4041-B6FF-09A8C40CA204@vmware.com>

Hi Nadav,

On Wed, Apr 07, 2021 at 05:57:31PM +0000, Nadav Amit wrote:
> I tested it on real bare-metal hardware. I ran some basic I/O workloads
> with the IOMMU enabled, checkers enabled/disabled, and so on.
> 
> However, I only tested the IOMMU-flushes and I did not test that the
> device-IOTLB flush work, since I did not have the hardware for that.
> 
> If you can refer me to the old patches, I will have a look and see
> whether I can see a difference in the logic or test them. If you want
> me to run different tests - let me know. If you want me to remove
> the device-IOTLB invalidations logic - that is also fine with me.

Here is the patch-set, it is from 2010 and against a very old version of
the AMD IOMMU driver:

	https://lore.kernel.org/lkml/1265898797-32183-1-git-send-email-joerg.roedel@amd.com/

Regards,

	Joerg

  reply	other threads:[~2021-04-08  7:18 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-23 21:06 [PATCH] iommu/amd: page-specific invalidations for more than one page Nadav Amit
2021-03-23 21:06 ` Nadav Amit
2021-04-07 10:01 ` Joerg Roedel
2021-04-07 10:01   ` Joerg Roedel
2021-04-07 17:57   ` Nadav Amit
2021-04-07 17:57     ` Nadav Amit
2021-04-08  7:18     ` Joerg Roedel [this message]
2021-04-08  7:18       ` Joerg Roedel
2021-04-08 10:29       ` Nadav Amit
2021-04-08 10:29         ` Nadav Amit
2021-04-08 13:23         ` Joerg Roedel
2021-04-08 13:23           ` Joerg Roedel
2021-04-08 15:16 ` Joerg Roedel
2021-04-08 15:16   ` Joerg Roedel

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