12:44 a.m.
QEMU has historically used uppercase CPU model names like "POWER8",
"POWER9", etc. However, starting with commit c5354f54aa60 ("ppc: make
cpu_model translation to type consistent"), QEMU began using lowercase
CPU model names (e.g., "power8") for newer POWER generations.
This shift in naming convention causes host-model compatibility checks
to fail, as the logic in ppc64CheckCompatibilityMode was case-sensitive
and expected only uppercase model names.
This patch adds support for "power11" as a valid host-model. Also
updates the compatibility logic to treat host-model names case-insensitively,
enabling recognition of both legacy uppercase and newer lowercase formats.
To ensure compatibility checks work correctly across POWER CPU generations,
avoiding false mismatches due to case differences.
Signed-off-by: Narayana Murty N <nnmlinux(a)linux.ibm.com>
---
src/cpu/cpu_ppc64.c | 11 +++----
...eries-cpu-compat-power11.ppc64-latest.args | 31 +++++++++++++++++++
...series-cpu-compat-power11.ppc64-latest.err | 1 +
...series-cpu-compat-power11.ppc64-latest.xml | 29 +++++++++++++++++
.../pseries-cpu-compat-power11.xml | 19 ++++++++++++
tests/qemuxmlconftest.c | 4 +++
tests/testutilshostcpus.h | 11 +++++++
tests/testutilsqemu.c | 4 +++
tests/testutilsqemu.h | 1 +
9 files changed, 105 insertions(+), 6 deletions(-)
create mode 100644 tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.args
create mode 100644 tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.err
create mode 100644 tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.xml
create mode 100644 tests/qemuxmlconfdata/pseries-cpu-compat-power11.xml
diff --git a/src/cpu/cpu_ppc64.c b/src/cpu/cpu_ppc64.c
index 13f5fc9c2c..d1b9c52287 100644
--- a/src/cpu/cpu_ppc64.c
+++ b/src/cpu/cpu_ppc64.c
@@ -93,22 +93,21 @@ ppc64CheckCompatibilityMode(const char *host_model,
if (!compat_mode)
return VIR_CPU_COMPARE_IDENTICAL;
- /* Valid host CPUs: POWER6, POWER7, POWER8, POWER9, POWER10 */
- if (!STRPREFIX(host_model, "POWER") ||
+ /* Valid host CPUs: POWER6, POWER7, POWER8, POWER9, POWER10, power11 */
+ if (!STRCASEPREFIX(host_model, "POWER") ||
!(tmp = (char *) host_model + strlen("POWER")) ||
virStrToLong_i(tmp, NULL, 10, &host) < 0 ||
- host < 6 || host > 10) {
+ host < 6 || host > 11) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s",
_("Host CPU does not support compatibility modes"));
return VIR_CPU_COMPARE_ERROR;
}
-
- /* Valid compatibility modes: power6, power7, power8, power9, power10 */
+ /* Valid compatibility modes: power6, power7, power8, power9, power10, power11 */
if (!STRPREFIX(compat_mode, "power") ||
!(tmp = (char *) compat_mode + strlen("power")) ||
virStrToLong_i(tmp, NULL, 10, &compat) < 0 ||
- compat < 6 || compat > 10) {
+ compat < 6 || compat > 11) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unknown compatibility mode %1$s"),
compat_mode);
diff --git a/tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.args
b/tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.args
new file mode 100644
index 0000000000..a800f81905
--- /dev/null
+++ b/tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.args
@@ -0,0 +1,31 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1 \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.local/share \
+XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.cache \
+XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.config \
+/usr/bin/qemu-system-ppc64 \
+-name guest=QEMUGuest1,debug-threads=on \
+-S \
+-object
'{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-QEMUGuest1/master-key.aes"}'
\
+-machine
pseries,usb=off,dump-guest-core=off,memory-backend=ppc_spapr.ram,max-cpu-compat=power11 \
+-accel kvm \
+-cpu host \
+-m size=262144k \
+-object
'{"qom-type":"memory-backend-ram","id":"ppc_spapr.ram","size":268435456}'
\
+-overcommit mem-lock=off \
+-smp 4,sockets=4,cores=1,threads=1 \
+-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-boot strict=on \
+-audiodev
'{"id":"audio1","driver":"none"}' \
+-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
+-msg timestamp=on
diff --git a/tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.err
b/tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.err
new file mode 100644
index 0000000000..f2322ccea5
--- /dev/null
+++ b/tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.err
@@ -0,0 +1 @@
+the CPU is incompatible with host CPU
diff --git a/tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.xml
b/tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.xml
new file mode 100644
index 0000000000..75c2b625c2
--- /dev/null
+++ b/tests/qemuxmlconfdata/pseries-cpu-compat-power11.ppc64-latest.xml
@@ -0,0 +1,29 @@
+<domain type='kvm'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>4</vcpu>
+ <os>
+ <type arch='ppc64' machine='pseries'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <cpu mode='host-model' check='partial'>
+ <model fallback='allow'>power11</model>
+ </cpu>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-ppc64</emulator>
+ <controller type='usb' index='0' model='none'/>
+ <controller type='pci' index='0' model='pci-root'>
+ <model name='spapr-pci-host-bridge'/>
+ <target index='0'/>
+ </controller>
+ <audio id='1' type='none'/>
+ <memballoon model='none'/>
+ <panic model='pseries'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxmlconfdata/pseries-cpu-compat-power11.xml
b/tests/qemuxmlconfdata/pseries-cpu-compat-power11.xml
new file mode 100644
index 0000000000..2dcdc651ef
--- /dev/null
+++ b/tests/qemuxmlconfdata/pseries-cpu-compat-power11.xml
@@ -0,0 +1,19 @@
+<domain type='kvm'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>4</vcpu>
+ <os>
+ <type arch='ppc64' machine='pseries'>hvm</type>
+ </os>
+ <cpu mode='host-model'>
+ <model>power11</model>
+ </cpu>
+ <clock offset='utc'/>
+ <devices>
+ <emulator>/usr/bin/qemu-system-ppc64</emulator>
+ <controller type='usb' model='none'/>
+ <memballoon model="none"/>
+ </devices>
+</domain>
diff --git a/tests/qemuxmlconftest.c b/tests/qemuxmlconftest.c
index 3f916e5228..ee95733919 100644
--- a/tests/qemuxmlconftest.c
+++ b/tests/qemuxmlconftest.c
@@ -2379,6 +2379,10 @@ mymain(void)
QEMU_CPU_DEF_POWER9);
DO_TEST_CAPS_LATEST_PPC64_HOSTCPU("pseries-cpu-compat-power10",
QEMU_CPU_DEF_POWER10);
+ DO_TEST_CAPS_LATEST_PPC64_HOSTCPU_FAILURE("pseries-cpu-compat-power11",
+ QEMU_CPU_DEF_POWER10);
+ DO_TEST_CAPS_LATEST_PPC64_HOSTCPU("pseries-cpu-compat-power11",
+ QEMU_CPU_DEF_POWER11);
qemuTestSetHostArch(&driver, VIR_ARCH_NONE);
diff --git a/tests/testutilshostcpus.h b/tests/testutilshostcpus.h
index 79c37baed4..6fd69e54db 100644
--- a/tests/testutilshostcpus.h
+++ b/tests/testutilshostcpus.h
@@ -123,6 +123,15 @@ static virCPUDef cpuPower10Data = {
.threads = 1,
};
+static virCPUDef cpuPower11Data = {
+ .type = VIR_CPU_TYPE_HOST,
+ .arch = VIR_ARCH_PPC64,
+ .model = (char *) "power11",
+ .sockets = 1,
+ .cores = 16,
+ .threads = 1,
+};
+
static virCPUDef cpuAarch64Data = {
.type = VIR_CPU_TYPE_HOST,
.arch = VIR_ARCH_AARCH64,
@@ -197,6 +206,8 @@ testUtilsHostCpusGetDefForModel(const char *model)
return virCPUDefCopy(&cpuPower9Data);
else if (STREQ(model, "POWER10"))
return virCPUDefCopy(&cpuPower10Data);
+ else if (STREQ(model, "power11"))
+ return virCPUDefCopy(&cpuPower11Data);
return NULL;
}
diff --git a/tests/testutilsqemu.c b/tests/testutilsqemu.c
index ecd761dff0..9038a37869 100644
--- a/tests/testutilsqemu.c
+++ b/tests/testutilsqemu.c
@@ -24,6 +24,7 @@ static virCPUDef *cpuHaswell;
static virCPUDef *cpuPower8;
static virCPUDef *cpuPower9;
static virCPUDef *cpuPower10;
+static virCPUDef *cpuPower11;
char *
virFindFileInPath(const char *file)
@@ -166,6 +167,7 @@ qemuTestGetCPUDef(qemuTestCPUDef d)
case QEMU_CPU_DEF_POWER8: return cpuPower8;
case QEMU_CPU_DEF_POWER9: return cpuPower9;
case QEMU_CPU_DEF_POWER10: return cpuPower10;
+ case QEMU_CPU_DEF_POWER11: return cpuPower11;
}
return NULL;
@@ -251,6 +253,7 @@ void qemuTestDriverFree(virQEMUDriver *driver)
virCPUDefFree(cpuPower8);
virCPUDefFree(cpuPower9);
virCPUDefFree(cpuPower10);
+ virCPUDefFree(cpuPower11);
}
@@ -303,6 +306,7 @@ int qemuTestDriverInit(virQEMUDriver *driver)
cpuPower8 = virCPUDefCopy(&cpuPower8Data);
cpuPower9 = virCPUDefCopy(&cpuPower9Data);
cpuPower10 = virCPUDefCopy(&cpuPower10Data);
+ cpuPower11 = virCPUDefCopy(&cpuPower11Data);
if (virMutexInit(&driver->lock) < 0)
return -1;
diff --git a/tests/testutilsqemu.h b/tests/testutilsqemu.h
index 20135b8390..62943bb2d8 100644
--- a/tests/testutilsqemu.h
+++ b/tests/testutilsqemu.h
@@ -78,6 +78,7 @@ typedef enum {
QEMU_CPU_DEF_POWER8,
QEMU_CPU_DEF_POWER9,
QEMU_CPU_DEF_POWER10,
+ QEMU_CPU_DEF_POWER11,
} qemuTestCPUDef;
struct testQemuArgs {
--
2.48.1