Wim Ten Have wrote:
> From: Wim ten Have <wim.ten.have@xxxxxxxxxx>
>
> Testing various configuration schemas targeting postive and negative
> nestedhvm under libvirt <cpu mode="host-passthrough"> configuration.
>
> Mode "host-passthrough" generates nestedhvm=1 in/from xl format where
>
> Intel virtualization (VT-x):
> <feature policy='disable' name='vmx'/>
>
> or
>
> AMD virtualization (AMD-V):
> <feature policy='disable' name='svm'/>
>
> disables virtualization mode under guest domains.
>
> Signed-off-by: Wim ten Have <wim.ten.have@xxxxxxxxxx>
> ---
> .../test-fullvirt-nestedhvm-disabled.cfg | 26 +++++++++
> .../test-fullvirt-nestedhvm-disabled.xml | 61 ++++++++++++++++++++++
> tests/xlconfigdata/test-fullvirt-nestedhvm.cfg | 26 +++++++++
> tests/xlconfigdata/test-fullvirt-nestedhvm.xml | 59 +++++++++++++++++++++
> tests/xlconfigtest.c | 2 +
> 5 files changed, 174 insertions(+)
> create mode 100644 tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.cfg
> create mode 100644 tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.xml
> create mode 100644 tests/xlconfigdata/test-fullvirt-nestedhvm.cfg
> create mode 100644 tests/xlconfigdata/test-fullvirt-nestedhvm.xml
>
> diff --git a/tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.cfg b/tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.cfg
> new file mode 100644
> index 0000000..d4b9f45
> --- /dev/null
> +++ b/tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.cfg
> @@ -0,0 +1,26 @@
> +name = "XenGuest2"
> +uuid = "c7a5fdb2-cdaf-9455-926a-d65c16db1809"
> +maxmem = 579
> +memory = 394
> +vcpus = 1
> +pae = 1
> +acpi = 1
> +apic = 1
> +viridian = 0
> +rtc_timeoffset = 0
> +localtime = 0
> +on_poweroff = "destroy"
> +on_reboot = "restart"
> +on_crash = "restart"
> +device_model = "/usr/lib/xen/bin/qemu-system-i386"
> +sdl = 0
> +vnc = 1
> +vncunused = 1
> +vnclisten = "127.0.0.1"
> +vif = [ "mac=00:16:3e:66:92:9c,bridge=xenbr1,script=vif-bridge,model=e1000" ]
> +parallel = "none"
> +serial = "none"
> +builder = "hvm"
> +boot = "d"
> +nestedhvm = 0
> +disk = [ "format=raw,vdev=hda,access=rw,backendtype=phy,target=/dev/HostVG/XenGuest2", "format=qcow2,vdev=hdb,access=rw,backendtype=qdisk,target=/var/lib/libvirt/images/XenGuest2-home", "format=raw,vdev=hdc,access=ro,backendtype=qdisk,devtype=cdrom,target=/root/boot.iso" ]
> diff --git a/tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.xml b/tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.xml
> new file mode 100644
> index 0000000..58b6338
> --- /dev/null
> +++ b/tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.xml
> @@ -0,0 +1,61 @@
> +<domain type='xen'>
> + <name>XenGuest2</name>
> + <uuid>c7a5fdb2-cdaf-9455-926a-d65c16db1809</uuid>
> + <memory unit='KiB'>592896</memory>
> + <currentMemory unit='KiB'>403456</currentMemory>
> + <vcpu placement='static'>1</vcpu>
> + <os>
> + <type arch='x86_64' machine='xenfv'>hvm</type>
> + <loader type='rom'>/usr/lib/xen/boot/hvmloader</loader>
> + <boot dev='cdrom'/>
> + </os>
> + <features>
> + <acpi/>
> + <apic/>
> + <pae/>
> + </features>
> + <cpu mode='host-passthrough'>
> + <feature policy='disable' name='vmx'/>
> + </cpu>
> + <clock offset='variable' adjustment='0' basis='utc'/>
> + <on_poweroff>destroy</on_poweroff>
> + <on_reboot>restart</on_reboot>
> + <on_crash>restart</on_crash>
> + <devices>
> + <emulator>/usr/lib/xen/bin/qemu-system-i386</emulator>
> + <disk type='block' device='disk'>
> + <driver name='phy' type='raw'/>
> + <source dev='/dev/HostVG/XenGuest2'/>
> + <target dev='hda' bus='ide'/>
> + <address type='drive' controller='0' bus='0' target='0' unit='0'/>
> + </disk>
> + <disk type='file' device='disk'>
> + <driver name='qemu' type='qcow2'/>
> + <source file='/var/lib/libvirt/images/XenGuest2-home'/>
> + <target dev='hdb' bus='ide'/>
> + <address type='drive' controller='0' bus='0' target='0' unit='1'/>
> + </disk>
> + <disk type='file' device='cdrom'>
> + <driver name='qemu' type='raw'/>
> + <source file='/root/boot.iso'/>
> + <target dev='hdc' bus='ide'/>
> + <readonly/>
> + <address type='drive' controller='0' bus='1' target='0' unit='0'/>
> + </disk>
> + <controller type='ide' index='0'/>
> + <interface type='bridge'>
> + <mac address='00:16:3e:66:92:9c'/>
> + <source bridge='xenbr1'/>
> + <script path='vif-bridge'/>
> + <model type='e1000'/>
> + </interface>
> + <input type='mouse' bus='ps2'/>
> + <input type='keyboard' bus='ps2'/>
> + <graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1'>
> + <listen type='address' address='127.0.0.1'/>
> + </graphics>
> + <video>
> + <model type='cirrus' vram='8192' heads='1' primary='yes'/>
> + </video>
> + </devices>
> +</domain>
> diff --git a/tests/xlconfigdata/test-fullvirt-nestedhvm.cfg b/tests/xlconfigdata/test-fullvirt-nestedhvm.cfg
> new file mode 100644
> index 0000000..281f126
> --- /dev/null
> +++ b/tests/xlconfigdata/test-fullvirt-nestedhvm.cfg
> @@ -0,0 +1,26 @@
> +name = "XenGuest2"
> +uuid = "c7a5fdb2-cdaf-9455-926a-d65c16db1809"
> +maxmem = 579
> +memory = 394
> +vcpus = 1
> +pae = 1
> +acpi = 1
> +apic = 1
> +viridian = 0
> +rtc_timeoffset = 0
> +localtime = 0
> +on_poweroff = "destroy"
> +on_reboot = "restart"
> +on_crash = "restart"
> +device_model = "/usr/lib/xen/bin/qemu-system-i386"
> +sdl = 0
> +vnc = 1
> +vncunused = 1
> +vnclisten = "127.0.0.1"
> +vif = [ "mac=00:16:3e:66:92:9c,bridge=xenbr1,script=vif-bridge,model=e1000" ]
> +parallel = "none"
> +serial = "none"
> +builder = "hvm"
> +boot = "d"
> +nestedhvm = 1
> +disk = [ "format=raw,vdev=hda,access=rw,backendtype=phy,target=/dev/HostVG/XenGuest2", "format=qcow2,vdev=hdb,access=rw,backendtype=qdisk,target=/var/lib/libvirt/images/XenGuest2-home", "format=raw,vdev=hdc,access=ro,backendtype=qdisk,devtype=cdrom,target=/root/boot.iso" ]
> diff --git a/tests/xlconfigdata/test-fullvirt-nestedhvm.xml b/tests/xlconfigdata/test-fullvirt-nestedhvm.xml
> new file mode 100644
> index 0000000..8c02e7a
> --- /dev/null
> +++ b/tests/xlconfigdata/test-fullvirt-nestedhvm.xml
> @@ -0,0 +1,59 @@
> +<domain type='xen'>
> + <name>XenGuest2</name>
> + <uuid>c7a5fdb2-cdaf-9455-926a-d65c16db1809</uuid>
> + <memory unit='KiB'>592896</memory>
> + <currentMemory unit='KiB'>403456</currentMemory>
> + <vcpu placement='static'>1</vcpu>
> + <os>
> + <type arch='x86_64' machine='xenfv'>hvm</type>
> + <loader type='rom'>/usr/lib/xen/boot/hvmloader</loader>
> + <boot dev='cdrom'/>
> + </os>
> + <features>
> + <acpi/>
> + <apic/>
> + <pae/>
> + </features>
> + <cpu mode='host-passthrough'/>
> + <clock offset='variable' adjustment='0' basis='utc'/>
> + <on_poweroff>destroy</on_poweroff>
> + <on_reboot>restart</on_reboot>
> + <on_crash>restart</on_crash>
> + <devices>
> + <emulator>/usr/lib/xen/bin/qemu-system-i386</emulator>
> + <disk type='block' device='disk'>
> + <driver name='phy' type='raw'/>
> + <source dev='/dev/HostVG/XenGuest2'/>
> + <target dev='hda' bus='ide'/>
> + <address type='drive' controller='0' bus='0' target='0' unit='0'/>
> + </disk>
> + <disk type='file' device='disk'>
> + <driver name='qemu' type='qcow2'/>
> + <source file='/var/lib/libvirt/images/XenGuest2-home'/>
> + <target dev='hdb' bus='ide'/>
> + <address type='drive' controller='0' bus='0' target='0' unit='1'/>
> + </disk>
> + <disk type='file' device='cdrom'>
> + <driver name='qemu' type='raw'/>
> + <source file='/root/boot.iso'/>
> + <target dev='hdc' bus='ide'/>
> + <readonly/>
> + <address type='drive' controller='0' bus='1' target='0' unit='0'/>
> + </disk>
> + <controller type='ide' index='0'/>
> + <interface type='bridge'>
> + <mac address='00:16:3e:66:92:9c'/>
> + <source bridge='xenbr1'/>
> + <script path='vif-bridge'/>
> + <model type='e1000'/>
> + </interface>
> + <input type='mouse' bus='ps2'/>
> + <input type='keyboard' bus='ps2'/>
> + <graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1'>
> + <listen type='address' address='127.0.0.1'/>
> + </graphics>
> + <video>
> + <model type='cirrus' vram='8192' heads='1' primary='yes'/>
> + </video>
> + </devices>
> +</domain>
> diff --git a/tests/xlconfigtest.c b/tests/xlconfigtest.c
> index e74e4d6..2fee449 100644
> --- a/tests/xlconfigtest.c
> +++ b/tests/xlconfigtest.c
> @@ -268,6 +268,8 @@ mymain(void)
> DO_TEST("fullvirt-hpet-timer");
> DO_TEST("fullvirt-tsc-timer");
> DO_TEST("fullvirt-multi-timer");
> + DO_TEST("fullvirt-nestedhvm");
> + DO_TEST("fullvirt-nestedhvm-disabled");
Note that if you take my advice in patch 2 and explicitly look for 'vmx' and
'svm' features in caps, you'll need to add a cpu with some features in
testXLInitCaps() when creating the caps. E.g. the below diff to tests/testutilsxen.c
Regards,
Jim
diff --git a/tests/testutilsxen.c b/tests/testutilsxen.c
index 122789c25..266e916f2 100644
--- a/tests/testutilsxen.c
+++ b/tests/testutilsxen.c
@@ -6,6 +6,33 @@
#include "testutilsxen.h"
#include "domain_conf.h"
+static virCPUFeatureDef cpuDefaultFeatures[] = {
+ { (char *) "ds", -1 },
+ { (char *) "acpi", -1 },
+ { (char *) "ss", -1 },
+ { (char *) "ht", -1 },
+ { (char *) "tm", -1 },
+ { (char *) "pbe", -1 },
+ { (char *) "ds_cpl", -1 },
+ { (char *) "vmx", -1 },
+ { (char *) "est", -1 },
+ { (char *) "tm2", -1 },
+ { (char *) "cx16", -1 },
+ { (char *) "xtpr", -1 },
+ { (char *) "lahf_lm", -1 },
+};
+static virCPUDef cpuDefaultData = {
+ .type = VIR_CPU_TYPE_HOST,
+ .arch = VIR_ARCH_X86_64,
+ .model = (char *) "core2duo",
+ .vendor = (char *) "Intel",
+ .sockets = 1,
+ .cores = 2,
+ .threads = 1,
+ .nfeatures = ARRAY_CARDINALITY(cpuDefaultFeatures),
+ .nfeatures_max = ARRAY_CARDINALITY(cpuDefaultFeatures),
+ .features = cpuDefaultFeatures,
+};
virCapsPtr testXenCapsInit(void)
{
@@ -85,9 +112,12 @@ testXLInitCaps(void)
"xenpv"
};
- if ((caps = virCapabilitiesNew(virArchFromHost(),
+ if ((caps = virCapabilitiesNew(VIR_ARCH_X86_64,
false, false)) == NULL)
return NULL;
+
+ caps->host.cpu = virCPUDefCopy(&cpuDefaultData);
+
--
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