Patch "iommu/amd: Correct the wrong setting of alias DTE in do_attach" has been added to the 4.4-stable tree

Patch "iommu/amd: Correct the wrong setting of alias DTE in do_attach" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    iommu/amd: Correct the wrong setting of alias DTE in do_attach

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     iommu-amd-correct-the-wrong-setting-of-alias-dte-in-do_attach.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 9b1a12d29109234d2b9718d04d4d404b7da4e794 Mon Sep 17 00:00:00 2001
From: Baoquan He <bhe@redhat.com>
Date: Wed, 20 Jan 2016 22:01:19 +0800
Subject: iommu/amd: Correct the wrong setting of alias DTE in do_attach

From: Baoquan He <bhe@redhat.com>

commit 9b1a12d29109234d2b9718d04d4d404b7da4e794 upstream.

In below commit alias DTE is set when its peripheral is
setting DTE. However there's a code bug here to wrongly
set the alias DTE, correct it in this patch.

commit e25bfb56ea7f046b71414e02f80f620deb5c6362
Author: Joerg Roedel <jroedel@suse.de>
Date:   Tue Oct 20 17:33:38 2015 +0200

    iommu/amd: Set alias DTE in do_attach/do_detach

Signed-off-by: Baoquan He <bhe@redhat.com>
Tested-by: Mark Hounschell <markh@compro.net>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/iommu/amd_iommu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -1905,7 +1905,7 @@ static void do_attach(struct iommu_dev_d
 	/* Update device table */
 	set_dte_entry(dev_data->devid, domain, ats);
 	if (alias != dev_data->devid)
-		set_dte_entry(dev_data->devid, domain, ats);
+		set_dte_entry(alias, domain, ats);
 
 	device_flush_dte(dev_data);
 }


Patches currently in stable-queue which might be from bhe@redhat.com are

queue-4.4/iommu-amd-correct-the-wrong-setting-of-alias-dte-in-do_attach.patch