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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1791206645; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=KV90x+3zFHk7cNPd+HxS6xQi8Qt1QYZt5hhvtroAleM=; b=ivTG/lEMHhYMVj2bZKpzKAOX+U2IonxUdUzUmVKIBRwagu0i9vse+z+QRso24+EosHZxp4 b4yTgnb+P0V2OdGDKKEX6e0OYPecC+ESbBR3oCtPaEe2knleRHcW0ScXHzI5FWvocgMIZ2 bgVjw3SnmUhqlqzEeY4hb7eQAJRKUDQ= X-MC-Unique: obwuuQIhOZGiBRqBapSW4A-1 X-Mimecast-MFC-AGG-ID: obwuuQIhOZGiBRqBapSW4A_1791206641 Date: Mon, 5 Oct 2026 14:23:54 +0100 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= Cc: qemu-devel@nongnu.org, xen-devel@lists.xenproject.org, qemu-riscv@nongnu.org, qemu-ppc@nongnu.org, qemu-block@nongnu.org, qemu-s390x@nongnu.org, qemu-arm@nongnu.org Subject: Re: [PATCH 01/28] hw: mark secure machines for x86, s390, ppc, arm, loonarch, riscv Message-ID: Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= References: <20260911143627.2743803-1-berrange@redhat.com> <20260911143627.2743803-2-berrange@redhat.com> MIME-Version: 1.0 In-Reply-To: User-Agent: Mutt/2.4.2 (2026-08-30) X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Mimecast-MFC-PROC-ID: WoMkaC7mblLDCGgvFO_a5kt-6g9kgWo091E37P6ttUA_1791206641 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-purgate-ID: tlsNG-bad1c0/1791206647-39AC0034-D518AF42/0/0 X-purgate-type: clean X-purgate-size: 1926 On Mon, Oct 05, 2026 at 03:06:08PM +0200, Philippe Mathieu-Daudé wrote: > Hi, > > On 11/9/26 16:36, Daniel P. Berrangé wrote: > > The versioned machine types are typically present for use in > > virtualization use cases and can be expected to provide a security > > barrier. The only exceptions are the m68k versioned machine types > > which are only used with TCG. There are also a handful of other > > machines declared secure in docs/system/security.rst, notably > > the Xen machine variants and microvm. > > > > Signed-off-by: Daniel P. Berrangé > > --- > > hw/arm/virt.c | 1 + > > hw/arm/xen-pvh.c | 1 + > > hw/i386/microvm.c | 1 + > > hw/i386/pc_piix.c | 4 ++-- > > hw/i386/xen/xen-pvh.c | 1 + > > hw/loongarch/virt.c | 2 ++ > > hw/ppc/spapr.c | 1 + > > hw/riscv/virt.c | 1 + > > hw/s390x/s390-virtio-ccw.c | 1 + > > hw/xen/xen-pvh-common.c | 1 + > > hw/xenpv/xen_machine_pv.c | 2 +- > > include/hw/i386/pc.h | 1 + > > 12 files changed, 14 insertions(+), 3 deletions(-) > > This patch should be split per machine / area of maintenance, > so maintainers can officially Ack their commitment to security > boundary for their machine. > > I'm not sure LoongArch / RISCV / PPC are. If this was previously > discussed, then pointer to the public discussions should be listed > in the patch description. Those are explicitly documented here: https://www.qemu.org/docs/master/system/security.html#virtualization-use-case so this patch is just encoding what has already been defined. With regards, Daniel -- |: https://berrange.com ~~ https://hachyderm.io/@berrange :| |: https://libvirt.org ~~ https://entangle-photo.org :| |: https://pixelfed.art/berrange ~~ https://fstop138.berrange.com :|