Re: [libvirt] [PATCHv4 1/6] conf: add <ioapic driver> to <features>

Add a new <ioapic> element with a driver attribute. Possible values are qemu and kvm. With 'qemu', the I/O APIC can be put in the userspace even for KVM domains. https://bugzilla.redhat.com/show_bug.cgi?id=1427005 --- docs/formatdomain.html.in | 8 ++++++ docs/schemas/domaincommon.rng | 15 ++++++++++ src/conf/domain_conf.c | 33 +++++++++++++++++++++- src/conf/domain_conf.h | 11 ++++++++ .../qemuxml2argv-intel-iommu-ioapic.xml | 29 +++++++++++++++++++ .../qemuxml2xmlout-intel-iommu-ioapic.xml | 1 + tests/qemuxml2xmltest.c | 1 + 7 files changed, 97 insertions(+), 1 deletion(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-ioapic.xml create mode 120000 tests/qemuxml2xmloutdata/qemuxml2xmlout-intel-iommu-ioapic.xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 8c884f4..6669e71 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -1678,6 +1678,7 @@ &lt;/kvm&gt; &lt;pvspinlock state='on'/&gt; &lt;gic version='2'/&gt; + &lt;ioapic driver='qemu'/&gt; &lt;/features&gt; ...</pre> @@ -1839,6 +1840,13 @@ for hypervisor to decide. <span class="since">Since 2.1.0</span> </dd> + <dt><code>ioapic</code></dt> + <dd>Tune the I/O APIC. Possible values for the + <code>driver</code> attribute are: + <code>kvm</code> (default for KVM domains) + and <code>qemu</code> which puts I/O APIC in userspace.

+ <span class="since">Since 3.4.0</span> (KVM only)

+ </dd> </dl> <h3><a name="elementsTime">Time keeping</a></h3>