[libvirt] [PATCH v4 3/8] libxl: error out on not supported CPU mode, instead of silently ignoring
Marek Marczykowski-Górecki
marmarek at invisiblethingslab.com
Thu Feb 8 22:58:56 UTC 2018
This change make libvirt XML with plain <cpu> element invalid for libxl,
which affect not only upcoming CPUID support, but also NUMA. In fact,
default mode 'custom' does not match what the driver actually does, so
it was a bug. Adjust xenconfig driver accordingly.
But nevertheless this commit break some configurations that were working
before.
---
Changes since v3:
- fix vnuma tests (nested HVM implicitly enabled there)
Changes since v2:
- change separated from 'libxl: add support for CPUID features policy'
---
src/libxl/libxl_conf.c | 10 ++++++++--
src/xenconfig/xen_xl.c | 1 +-
tests/xlconfigdata/test-fullvirt-vnuma-autocomplete.cfg | 1 +-
tests/xlconfigdata/test-fullvirt-vnuma-autocomplete.xml | 2 +-
tests/xlconfigdata/test-fullvirt-vnuma-nodistances.cfg | 1 +-
tests/xlconfigdata/test-fullvirt-vnuma-nodistances.xml | 2 +-
tests/xlconfigdata/test-fullvirt-vnuma-partialdist.cfg | 1 +-
tests/xlconfigdata/test-fullvirt-vnuma-partialdist.xml | 2 +-
tests/xlconfigdata/test-fullvirt-vnuma.cfg | 1 +-
tests/xlconfigdata/test-fullvirt-vnuma.xml | 2 +-
10 files changed, 17 insertions(+), 6 deletions(-)
diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c
index 8cced29..66956a7 100644
--- a/src/libxl/libxl_conf.c
+++ b/src/libxl/libxl_conf.c
@@ -355,11 +355,17 @@ libxlMakeDomBuildInfo(virDomainDefPtr def,
def->features[VIR_DOMAIN_FEATURE_ACPI] ==
VIR_TRISTATE_SWITCH_ON);
- if (caps &&
- def->cpu && def->cpu->mode == (VIR_CPU_MODE_HOST_PASSTHROUGH)) {
+ if (caps && def->cpu) {
bool hasHwVirt = false;
bool svm = false, vmx = false;
+ if (def->cpu->mode != VIR_CPU_MODE_HOST_PASSTHROUGH) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unsupported cpu mode '%s'"),
+ virCPUModeTypeToString(def->cpu->mode));
+ return -1;
+ }
+
if (ARCH_IS_X86(def->os.arch)) {
vmx = virCPUCheckFeature(caps->host.arch, caps->host.cpu, "vmx");
svm = virCPUCheckFeature(caps->host.arch, caps->host.cpu, "svm");
diff --git a/src/xenconfig/xen_xl.c b/src/xenconfig/xen_xl.c
index 2ef80eb..6cda305 100644
--- a/src/xenconfig/xen_xl.c
+++ b/src/xenconfig/xen_xl.c
@@ -494,6 +494,7 @@ xenParseXLVnuma(virConfPtr conf,
goto cleanup;
}
+ cpu->mode = VIR_CPU_MODE_HOST_PASSTHROUGH;
cpu->type = VIR_CPU_TYPE_GUEST;
def->cpu = cpu;
diff --git a/tests/xlconfigdata/test-fullvirt-vnuma-autocomplete.cfg b/tests/xlconfigdata/test-fullvirt-vnuma-autocomplete.cfg
index edba69a..2c9de44 100644
--- a/tests/xlconfigdata/test-fullvirt-vnuma-autocomplete.cfg
+++ b/tests/xlconfigdata/test-fullvirt-vnuma-autocomplete.cfg
@@ -22,5 +22,6 @@ parallel = "none"
serial = "none"
builder = "hvm"
boot = "d"
+nestedhvm = 1
vnuma = [ [ "pnode=0", "size=2048", "vcpus=0,11", "vdistances=10,21,31,41,51,61" ], [ "pnode=1", "size=2048", "vcpus=1,10", "vdistances=21,10,21,31,41,51" ], [ "pnode=2", "size=2048", "vcpus=2,9", "vdistances=31,21,10,21,31,41" ], [ "pnode=3", "size=2048", "vcpus=3,8", "vdistances=41,31,21,10,21,31" ], [ "pnode=4", "size=2048", "vcpus=4,7", "vdistances=51,41,31,21,10,21" ], [ "pnode=5", "size=2048", "vcpus=5-6", "vdistances=61,51,41,31,21,10" ] ]
disk = [ "format=raw,vdev=hda,access=rw,backendtype=phy,target=/dev/HostVG/XenGuest2" ]
diff --git a/tests/xlconfigdata/test-fullvirt-vnuma-autocomplete.xml b/tests/xlconfigdata/test-fullvirt-vnuma-autocomplete.xml
index e3639eb..3c486ad 100644
--- a/tests/xlconfigdata/test-fullvirt-vnuma-autocomplete.xml
+++ b/tests/xlconfigdata/test-fullvirt-vnuma-autocomplete.xml
@@ -14,7 +14,7 @@
<apic/>
<pae/>
</features>
- <cpu>
+ <cpu mode='host-passthrough'>
<numa>
<cell id='0' cpus='0,11' memory='2097152' unit='KiB'>
<distances>
diff --git a/tests/xlconfigdata/test-fullvirt-vnuma-nodistances.cfg b/tests/xlconfigdata/test-fullvirt-vnuma-nodistances.cfg
index 8186edf..ca8e5b0 100644
--- a/tests/xlconfigdata/test-fullvirt-vnuma-nodistances.cfg
+++ b/tests/xlconfigdata/test-fullvirt-vnuma-nodistances.cfg
@@ -22,5 +22,6 @@ parallel = "none"
serial = "none"
builder = "hvm"
boot = "d"
+nestedhvm = 1
vnuma = [ [ "pnode=0", "size=2048", "vcpus=0-1", "vdistances=10,20,20,20" ], [ "pnode=1", "size=2048", "vcpus=2-3", "vdistances=20,10,20,20" ], [ "pnode=2", "size=2048", "vcpus=4-5", "vdistances=20,20,10,20" ], [ "pnode=3", "size=2048", "vcpus=6-7", "vdistances=20,20,20,10" ] ]
disk = [ "format=raw,vdev=hda,access=rw,backendtype=phy,target=/dev/HostVG/XenGuest2" ]
diff --git a/tests/xlconfigdata/test-fullvirt-vnuma-nodistances.xml b/tests/xlconfigdata/test-fullvirt-vnuma-nodistances.xml
index 9cab3ca..17c9ca5 100644
--- a/tests/xlconfigdata/test-fullvirt-vnuma-nodistances.xml
+++ b/tests/xlconfigdata/test-fullvirt-vnuma-nodistances.xml
@@ -14,7 +14,7 @@
<apic/>
<pae/>
</features>
- <cpu>
+ <cpu mode='host-passthrough'>
<numa>
<cell id='0' cpus='0-1' memory='2097152' unit='KiB'/>
<cell id='1' cpus='2-3' memory='2097152' unit='KiB'/>
diff --git a/tests/xlconfigdata/test-fullvirt-vnuma-partialdist.cfg b/tests/xlconfigdata/test-fullvirt-vnuma-partialdist.cfg
index 861a50e..46d5f90 100644
--- a/tests/xlconfigdata/test-fullvirt-vnuma-partialdist.cfg
+++ b/tests/xlconfigdata/test-fullvirt-vnuma-partialdist.cfg
@@ -22,5 +22,6 @@ parallel = "none"
serial = "none"
builder = "hvm"
boot = "d"
+nestedhvm = 1
vnuma = [ [ "pnode=0", "size=2048", "vcpus=0-1", "vdistances=10,21,31,41" ], [ "pnode=1", "size=2048", "vcpus=2-3", "vdistances=21,10,20,20" ], [ "pnode=2", "size=2048", "vcpus=4-5", "vdistances=31,20,10,20" ], [ "pnode=3", "size=2048", "vcpus=6-7", "vdistances=41,20,20,10" ] ]
disk = [ "format=raw,vdev=hda,access=rw,backendtype=phy,target=/dev/HostVG/XenGuest2" ]
diff --git a/tests/xlconfigdata/test-fullvirt-vnuma-partialdist.xml b/tests/xlconfigdata/test-fullvirt-vnuma-partialdist.xml
index 084b889..291fc37 100644
--- a/tests/xlconfigdata/test-fullvirt-vnuma-partialdist.xml
+++ b/tests/xlconfigdata/test-fullvirt-vnuma-partialdist.xml
@@ -14,7 +14,7 @@
<apic/>
<pae/>
</features>
- <cpu>
+ <cpu mode='host-passthrough'>
<numa>
<cell id='0' cpus='0-1' memory='2097152' unit='KiB'>
<distances>
diff --git a/tests/xlconfigdata/test-fullvirt-vnuma.cfg b/tests/xlconfigdata/test-fullvirt-vnuma.cfg
index 91e233a..813ad7f 100644
--- a/tests/xlconfigdata/test-fullvirt-vnuma.cfg
+++ b/tests/xlconfigdata/test-fullvirt-vnuma.cfg
@@ -22,5 +22,6 @@ parallel = "none"
serial = "none"
builder = "hvm"
boot = "d"
+nestedhvm = 1
vnuma = [ [ "pnode=0", "size=2048", "vcpus=0-1", "vdistances=10,21,31,41" ], [ "pnode=1", "size=2048", "vcpus=2-3", "vdistances=21,10,21,31" ], [ "pnode=2", "size=2048", "vcpus=4-5", "vdistances=31,21,10,21" ], [ "pnode=3", "size=2048", "vcpus=6-7", "vdistances=41,31,21,10" ] ]
disk = [ "format=raw,vdev=hda,access=rw,backendtype=phy,target=/dev/HostVG/XenGuest2" ]
diff --git a/tests/xlconfigdata/test-fullvirt-vnuma.xml b/tests/xlconfigdata/test-fullvirt-vnuma.xml
index 5368b0d..9a9f495 100644
--- a/tests/xlconfigdata/test-fullvirt-vnuma.xml
+++ b/tests/xlconfigdata/test-fullvirt-vnuma.xml
@@ -14,7 +14,7 @@
<apic/>
<pae/>
</features>
- <cpu>
+ <cpu mode='host-passthrough'>
<numa>
<cell id='0' cpus='0-1' memory='2097152' unit='KiB'>
<distances>
--
git-series 0.9.1
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