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

KVM: pci-assign: do not map smm memory slot pages in vt-d page tables

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: kvm-pci-assign-do-not-map-smm-memory-slot-pages-in-vt-d-page-tables.patch and it can be found in the queue-4.9 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 foo@baz Thu Dec 21 09:02:40 CET 2017

From: "Herongguang (Stephen)" herongguang.he@huawei.com Date: Mon, 27 Mar 2017 15:21:17 +0800 Subject: KVM: pci-assign: do not map smm memory slot pages in vt-d page tables

From: "Herongguang (Stephen)" herongguang.he@huawei.com

[ Upstream commit 0292e169b2d9c8377a168778f0b16eadb1f578fd ]

or VM memory are not put thus leaked in kvm_iommu_unmap_memslots() when destroy VM.

This is consistent with current vfio implementation.

Signed-off-by: herongguang herongguang.he@huawei.com Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- virt/kvm/kvm_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1060,7 +1060,7 @@ int __kvm_set_memory_region(struct kvm * * changes) is disallowed above, so any other attribute changes getting * here can be skipped. */ - if ((change == KVM_MR_CREATE) || (change == KVM_MR_MOVE)) { + if (as_id == 0 && (change == KVM_MR_CREATE || change == KVM_MR_MOVE)) { r = kvm_iommu_map_pages(kvm, &new); return r; }

Patches currently in stable-queue which might be from herongguang.he@huawei.com are

queue-4.9/kvm-pci-assign-do-not-map-smm-memory-slot-pages-in-vt-d-page-tables.patch