From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:55871 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729034AbgBYMPX (ORCPT ); Tue, 25 Feb 2020 07:15:23 -0500 Date: Tue, 25 Feb 2020 13:15:10 +0100 From: Cornelia Huck Subject: Re: [PATCH v4 19/36] KVM: s390: protvirt: handle secure guest prefix pages Message-ID: <20200225131510.083cf61a.cohuck@redhat.com> In-Reply-To: <20200224114107.4646-20-borntraeger@de.ibm.com> References: <20200224114107.4646-1-borntraeger@de.ibm.com> <20200224114107.4646-20-borntraeger@de.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-s390-owner@vger.kernel.org List-ID: To: Christian Borntraeger Cc: Janosch Frank , KVM , David Hildenbrand , Thomas Huth , Ulrich Weigand , Claudio Imbrenda , linux-s390 , Michael Mueller , Vasily Gorbik , Janosch Frank On Mon, 24 Feb 2020 06:40:50 -0500 Christian Borntraeger wrote: > From: Janosch Frank > > The SPX instruction is handled by the ultravisor. We do get a > notification intercept, though. Let us update our internal view. > > In addition to that, when the guest prefix page is not secure, an > intercept 112 (0x70) is indicated. Let us make the prefix pages > secure again. > > Signed-off-by: Janosch Frank > Reviewed-by: David Hildenbrand > [borntraeger@de.ibm.com: patch merging, splitting, fixing] > Signed-off-by: Christian Borntraeger > --- > arch/s390/include/asm/kvm_host.h | 1 + > arch/s390/kvm/intercept.c | 18 ++++++++++++++++++ > 2 files changed, 19 insertions(+) Reviewed-by: Cornelia Huck