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From 0a7264a2f791329f1c041594dfc17328040b8299 Mon Sep 17 00:00:00 2001
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Message-Id: <0a7264a2f791329f1c041594dfc17328040b8299@dist-git>
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From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
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Date: Mon, 27 Nov 2017 14:21:00 +0100
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Subject: [PATCH] qemu: Introduce functions for input device cgroup
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manipulation
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Export qemuSetupInputCgroup and introduce qemuTeardownInputCgroup
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for hotunplug.
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(cherry picked from commit f29612fd353db074a0b963ed53ef9c29c562bb36)
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https://bugzilla.redhat.com/show_bug.cgi?id=1509866
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Signed-off-by: Ján Tomko <jtomko@redhat.com>
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/qemu/qemu_cgroup.c | 25 ++++++++++++++++++++++++-
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src/qemu/qemu_cgroup.h | 4 ++++
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2 files changed, 28 insertions(+), 1 deletion(-)
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diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c
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index 0f75e22f98..19252ea239 100644
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--- a/src/qemu/qemu_cgroup.c
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+++ b/src/qemu/qemu_cgroup.c
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@@ -246,7 +246,7 @@ qemuSetupTPMCgroup(virDomainObjPtr vm)
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}
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-static int
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+int
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qemuSetupInputCgroup(virDomainObjPtr vm,
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virDomainInputDefPtr dev)
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{
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@@ -269,6 +269,29 @@ qemuSetupInputCgroup(virDomainObjPtr vm,
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}
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+int
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+qemuTeardownInputCgroup(virDomainObjPtr vm,
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+ virDomainInputDefPtr dev)
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+{
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+ qemuDomainObjPrivatePtr priv = vm->privateData;
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+ int ret = 0;
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+
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+ if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_DEVICES))
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+ return 0;
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+
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+ switch (dev->type) {
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+ case VIR_DOMAIN_INPUT_TYPE_PASSTHROUGH:
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+ VIR_DEBUG("Process path '%s' for input device", dev->source.evdev);
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+ ret = virCgroupDenyDevicePath(priv->cgroup, dev->source.evdev,
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+ VIR_CGROUP_DEVICE_RWM, false);
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+ virDomainAuditCgroupPath(vm, priv->cgroup, "deny", dev->source.evdev, "rwm", ret == 0);
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+ break;
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+ }
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+
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+ return ret;
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+}
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+
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+
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int
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qemuSetupHostdevCgroup(virDomainObjPtr vm,
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virDomainHostdevDefPtr dev)
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diff --git a/src/qemu/qemu_cgroup.h b/src/qemu/qemu_cgroup.h
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index 3fc1583612..3b8ff6055d 100644
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--- a/src/qemu/qemu_cgroup.h
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+++ b/src/qemu/qemu_cgroup.h
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@@ -37,6 +37,10 @@ int qemuSetupDiskCgroup(virDomainObjPtr vm,
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virDomainDiskDefPtr disk);
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int qemuTeardownDiskCgroup(virDomainObjPtr vm,
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virDomainDiskDefPtr disk);
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+int qemuSetupInputCgroup(virDomainObjPtr vm,
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+ virDomainInputDefPtr dev);
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+int qemuTeardownInputCgroup(virDomainObjPtr vm,
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+ virDomainInputDefPtr dev);
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int qemuSetupHostdevCgroup(virDomainObjPtr vm,
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virDomainHostdevDefPtr dev)
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ATTRIBUTE_RETURN_CHECK;
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--
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2.15.1
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