From nobody Sun Feb 8 16:53:27 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=pass(p=none dis=none) header.from=redhat.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1546438235753707.319875102806; Wed, 2 Jan 2019 06:10:35 -0800 (PST) Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D73F86147B; Wed, 2 Jan 2019 14:10:33 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 9EF66101963D; Wed, 2 Jan 2019 14:10:33 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 35862181B9EB; Wed, 2 Jan 2019 14:10:33 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id x02E98e5000984 for ; Wed, 2 Jan 2019 09:09:08 -0500 Received: by smtp.corp.redhat.com (Postfix) id 36E89608E0; Wed, 2 Jan 2019 14:09:08 +0000 (UTC) Received: from antique-work.brq.redhat.com (unknown [10.43.2.181]) by smtp.corp.redhat.com (Postfix) with ESMTP id B24DC608E5 for ; Wed, 2 Jan 2019 14:09:07 +0000 (UTC) From: Pavel Hrdina To: libvir-list@redhat.com Date: Wed, 2 Jan 2019 15:08:47 +0100 Message-Id: <17b5479bcec11da70dc901a043686d74a4a18672.1546437956.git.phrdina@redhat.com> In-Reply-To: References: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-loop: libvir-list@redhat.com Subject: [libvirt] [PATCH 15/19] vircgroup: introduce virCgroupV2DenyAllDevices X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Wed, 02 Jan 2019 14:10:34 +0000 (UTC) Content-Type: text/plain; charset="utf-8" If we want to deny all devices we just need to replace any existing program with new program with empty map. Signed-off-by: Pavel Hrdina --- src/util/vircgroupv2.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c index 6c3f2bf522..4bcdd16814 100644 --- a/src/util/vircgroupv2.c +++ b/src/util/vircgroupv2.c @@ -2087,6 +2087,16 @@ virCgroupV2AllowAllDevices(virCgroupPtr group, } =20 =20 +static int +virCgroupV2DenyAllDevices(virCgroupPtr group) +{ + if (virCgroupV2DeviceDetectProg(group) < 0) + return -1; + + return virCgroupV2DeviceCreateProg(group); +} + + virCgroupBackend virCgroupV2Backend =3D { .type =3D VIR_CGROUP_BACKEND_TYPE_V2, =20 @@ -2139,6 +2149,7 @@ virCgroupBackend virCgroupV2Backend =3D { .allowDevice =3D virCgroupV2AllowDevice, .denyDevice =3D virCgroupV2DenyDevice, .allowAllDevices =3D virCgroupV2AllowAllDevices, + .denyAllDevices =3D virCgroupV2DenyAllDevices, =20 .setCpuShares =3D virCgroupV2SetCpuShares, .getCpuShares =3D virCgroupV2GetCpuShares, --=20 2.20.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list