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From: "joro@8bytes.org" <joro@8bytes.org>
To: "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@amd.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"iommu@lists.linux-foundation.org"
	<iommu@lists.linux-foundation.org>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	"Singh, Brijesh" <brijesh.singh@amd.com>
Subject: Re: [PATCH] iommu/amd: Fix IOMMU page flush when detach all devices from a domain
Date: Thu, 24 Jan 2019 09:04:31 +0100	[thread overview]
Message-ID: <20190124080431.GG32526@8bytes.org> (raw)
In-Reply-To: <54a1da19-54dd-30cc-191b-7fe5dc4a58fa@amd.com>

Hi Suravee,

On Thu, Jan 24, 2019 at 03:25:19AM +0000, Suthikulpanit, Suravee wrote:
> Actually, I just noticed that device_flush_dte() has already handled flushing the DTE
> for alias device as well. Please see the link below.
> 
> https://elixir.bootlin.com/linux/latest/source/drivers/iommu/amd_iommu.c#L1219
> 
> So, we don't need to call device_flush_dte() for alias device in do_detach().

You are right, I missed that.

Thanks,

	Joerg

WARNING: multiple messages have this Message-ID (diff)
From: "joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org" <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
To: "Suthikulpanit,
	Suravee" <Suravee.Suthikulpanit-5C7GfCeVMHo@public.gmane.org>
Cc: Boris Ostrovsky
	<boris.ostrovsky-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>,
	"iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org"
	<iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
	"Singh, Brijesh" <brijesh.singh-5C7GfCeVMHo@public.gmane.org>,
	"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH] iommu/amd: Fix IOMMU page flush when detach all devices from a domain
Date: Thu, 24 Jan 2019 09:04:31 +0100	[thread overview]
Message-ID: <20190124080431.GG32526@8bytes.org> (raw)
In-Reply-To: <54a1da19-54dd-30cc-191b-7fe5dc4a58fa-5C7GfCeVMHo@public.gmane.org>

Hi Suravee,

On Thu, Jan 24, 2019 at 03:25:19AM +0000, Suthikulpanit, Suravee wrote:
> Actually, I just noticed that device_flush_dte() has already handled flushing the DTE
> for alias device as well. Please see the link below.
> 
> https://elixir.bootlin.com/linux/latest/source/drivers/iommu/amd_iommu.c#L1219
> 
> So, we don't need to call device_flush_dte() for alias device in do_detach().

You are right, I missed that.

Thanks,

	Joerg

  reply	other threads:[~2019-01-24  8:04 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-16  4:16 [PATCH] iommu/amd: Fix IOMMU page flush when detach all devices from a domain Suthikulpanit, Suravee
2019-01-16 13:26 ` joro
2019-01-16 14:08   ` Suthikulpanit, Suravee
2019-01-16 17:08     ` joro
2019-01-17  8:44       ` Suthikulpanit, Suravee
2019-01-17 11:48         ` Suthikulpanit, Suravee
2019-01-22 10:44         ` joro
2019-01-22 15:53           ` Suthikulpanit, Suravee
2019-01-23  7:56             ` joro
2019-01-24  3:25               ` Suthikulpanit, Suravee
2019-01-24  3:25                 ` Suthikulpanit, Suravee
2019-01-24  8:04                 ` joro [this message]
2019-01-24  8:04                   ` joro-zLv9SwRftAIdnm+yROfE0A
2019-01-16 14:40   ` Suthikulpanit, Suravee
2019-01-16 17:09     ` joro

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