Patch "iommu/amd: Finish TLB flush in amd_iommu_unmap()" has been added to the 4.4-stable tree

Patch "iommu/amd: Finish TLB flush in amd_iommu_unmap()" 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: Finish TLB flush in amd_iommu_unmap()

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-finish-tlb-flush-in-amd_iommu_unmap.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 ce76353f169a6471542d999baf3d29b121dce9c0 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Fri, 13 Oct 2017 14:32:37 +0200
Subject: iommu/amd: Finish TLB flush in amd_iommu_unmap()

From: Joerg Roedel <jroedel@suse.de>

commit ce76353f169a6471542d999baf3d29b121dce9c0 upstream.

The function only sends the flush command to the IOMMU(s),
but does not wait for its completion when it returns. Fix
that.

Fixes: 601367d76bd1 ('x86/amd-iommu: Remove iommu_flush_domain function')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3096,6 +3096,7 @@ static size_t amd_iommu_unmap(struct iom
 	mutex_unlock(&domain->api_lock);
 
 	domain_flush_tlb_pde(domain);
+	domain_flush_complete(domain);
 
 	return unmap_size;
 }


Patches currently in stable-queue which might be from jroedel@suse.de are

queue-4.4/iommu-amd-finish-tlb-flush-in-amd_iommu_unmap.patch