Re: [PATCH] iommu: Don't use sme_active() in generic code
From: Thiago Jung Bauermann
Date: Tue Sep 03 2019 - 12:03:46 EST
Joerg Roedel <joro@xxxxxxxxxx> writes:
> On Tue, Sep 03, 2019 at 03:28:49PM +1000, Stephen Rothwell wrote:
>> Hi all,
>> On Mon, 2 Sep 2019 14:26:40 +0000 "Lendacky, Thomas" <Thomas.Lendacky@xxxxxxx> wrote:
>> > Maybe we should make this mem_encrypt_active(), since this will probably
>> > be needed if/when an IOMMU device is eventually added to a guest, and the
>> > referenced commit below doesn't remove that call.
>> I have done that for today:
> Thanks Stephen and Tom. I queued the attached patch into the iommu tree
> to fix the problem.
> From 2896ba40d0becdb72b45f096cad70633abc014f6 Mon Sep 17 00:00:00 2001
> From: Joerg Roedel <jroedel@xxxxxxx>
> Date: Tue, 3 Sep 2019 15:15:44 +0200
> Subject: [PATCH] iommu: Don't use sme_active() in generic code
> Switch to the generic function mem_encrypt_active() because
> sme_active() is x86 specific and can't be called from
> generic code on other platforms than x86.
> Fixes: 2cc13bb4f59f ("iommu: Disable passthrough mode when SME is active")
> Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
Thiago Jung Bauermann
IBM Linux Technology Center