[libvirt] [PATCH v1 1/3] libxl: set nestedhvm when vmx|svm is required

From: Joao Martins <joao.m.martins(a)oracle.com&gt; nestedhvm is the option on Xen 4.4+ which enables nested virtualization on Xen. We set this field when one of the following features is included in a host-passthrough CPU element: <feature policy='require' name='vmx'/> or: <feature policy='require' name='svm'/> Signed-off-by: Joao Martins <joao.m.martins(a)oracle.com&gt; Signed-off-by: Wim ten Have <wim.ten.have(a)oracle.com&gt; --- src/libxl/libxl_conf.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index f5b788b..8c4c511 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -374,6 +374,15 @@ libxlMakeDomBuildInfo(virDomainDefPtr def, def->features[VIR_DOMAIN_FEATURE_ACPI] == VIR_TRISTATE_SWITCH_ON); + if (def->cpu && def->cpu->nfeatures) { + for (i = 0; i < def->cpu->nfeatures; i++) { + if (def->cpu->features[i].policy == VIR_CPU_FEATURE_REQUIRE && + (STREQ(def->cpu->features[i].name, "vmx") || + STREQ(def->cpu->features[i].name, "svm"))) + libxl_defbool_set(&b_info->u.hvm.nested_hvm, true); + } + } + if (def->nsounds > 0) { /* * Use first sound device. man xl.cfg(5) describes soundhw as -- 2.9.3