diff --git a/src/bhyve/bhyve_driver.c b/src/bhyve/bhyve_driver.c
index 72c51434c7c8bb19a4829691f5d05ab9e6a9f62d..26047d31e294031fa4f424629459cedbd0b4909d 100644
--- a/src/bhyve/bhyve_driver.c
+++ b/src/bhyve/bhyve_driver.c
@@ -1398,7 +1398,7 @@ bhyveConnectBaselineCPU(virConnectPtr conn,
     if (!(cpus = virCPUDefListParse(xmlCPUs, ncpus, VIR_CPU_TYPE_HOST)))
         goto cleanup;
 
-    if (!(cpu = virCPUBaseline(cpus, ncpus, NULL,
+    if (!(cpu = virCPUBaseline(VIR_ARCH_NONE, cpus, ncpus, NULL,
                                !!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE))))
         goto cleanup;
 
diff --git a/src/cpu/cpu.c b/src/cpu/cpu.c
index 81b93a991bd7a7d08e27b2593768cbf233f0ac4d..2c60d27b1713dad31f67e384c2d58c5172165427 100644
--- a/src/cpu/cpu.c
+++ b/src/cpu/cpu.c
@@ -481,20 +481,22 @@ virCPUProbeHost(virArch arch)
 /**
  * virCPUBaseline:
  *
+ * @arch: CPU architecture, use VIR_ARCH_NONE to autodetect from @cpus
  * @cpus: list of host CPU definitions
  * @ncpus: number of CPUs in @cpus
  * @models: list of CPU models that can be considered for the baseline CPU
  * @migratable: requests non-migratable features to be removed from the result
  *
  * Computes the most feature-rich CPU which is compatible with all given
- * host CPUs. If @models is NULL, all models supported by libvirt will
+ * CPUs. If @models is NULL, all models supported by libvirt will
  * be considered when computing the baseline CPU model, otherwise the baseline
  * CPU model will be one of the provided CPU @models.
  *
  * Returns baseline CPU definition or NULL on error.
  */
 virCPUDefPtr
-virCPUBaseline(virCPUDefPtr *cpus,
+virCPUBaseline(virArch arch,
+               virCPUDefPtr *cpus,
                unsigned int ncpus,
                virDomainCapsCPUModelsPtr models,
                bool migratable)
@@ -502,7 +504,8 @@ virCPUBaseline(virCPUDefPtr *cpus,
     struct cpuArchDriver *driver;
     size_t i;
 
-    VIR_DEBUG("ncpus=%u, models=%p, migratable=%d", ncpus, models, migratable);
+    VIR_DEBUG("arch=%s, ncpus=%u, models=%p, migratable=%d",
+              virArchToString(arch), ncpus, models, migratable);
     if (cpus) {
         for (i = 0; i < ncpus; i++)
             VIR_DEBUG("cpus[%zu]=%p", i, cpus[i]);
@@ -536,13 +539,16 @@ virCPUBaseline(virCPUDefPtr *cpus,
         }
     }
 
-    if ((driver = cpuGetSubDriver(cpus[0]->arch)) == NULL)
+    if (arch == VIR_ARCH_NONE)
+        arch = cpus[0]->arch;
+
+    if ((driver = cpuGetSubDriver(arch)) == NULL)
         return NULL;
 
     if (driver->baseline == NULL) {
         virReportError(VIR_ERR_NO_SUPPORT,
                        _("cannot compute baseline CPU of %s architecture"),
-                       virArchToString(cpus[0]->arch));
+                       virArchToString(arch));
         return NULL;
     }
 
diff --git a/src/cpu/cpu.h b/src/cpu/cpu.h
index 529068a618397ce5f6d0e52152c7c51ee62ebf38..8c45bf8b3123af76531ab1a765c1e3c47561d49f 100644
--- a/src/cpu/cpu.h
+++ b/src/cpu/cpu.h
@@ -194,7 +194,8 @@ virCPUDefPtr
 virCPUProbeHost(virArch arch);
 
 virCPUDefPtr
-virCPUBaseline(virCPUDefPtr *cpus,
+virCPUBaseline(virArch arch,
+               virCPUDefPtr *cpus,
                unsigned int ncpus,
                virDomainCapsCPUModelsPtr models,
                bool migratable);
diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
index e11969dca7176813960c9820ed7d15297aac0423..a85ce84404c35d4755d13d07fa8fe58c44a3d5ae 100644
--- a/src/libxl/libxl_driver.c
+++ b/src/libxl/libxl_driver.c
@@ -6349,7 +6349,7 @@ libxlConnectBaselineCPU(virConnectPtr conn,
     if (!(cpus = virCPUDefListParse(xmlCPUs, ncpus, VIR_CPU_TYPE_HOST)))
         goto cleanup;
 
-    if (!(cpu = virCPUBaseline(cpus, ncpus, NULL,
+    if (!(cpu = virCPUBaseline(VIR_ARCH_NONE, cpus, ncpus, NULL,
                                !!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE))))
         goto cleanup;
 
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 08139553a1920f10e540e9e32801ed61721dd66f..71a6ec95404f6388ff467d8c90df8dbb5d205416 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13315,7 +13315,7 @@ qemuConnectBaselineCPU(virConnectPtr conn ATTRIBUTE_UNUSED,
     if (!(cpus = virCPUDefListParse(xmlCPUs, ncpus, VIR_CPU_TYPE_HOST)))
         goto cleanup;
 
-    if (!(baseline = virCPUBaseline(cpus, ncpus, NULL,
+    if (!(baseline = virCPUBaseline(VIR_ARCH_NONE, cpus, ncpus, NULL,
                                     !!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE))))
         goto cleanup;
 
diff --git a/src/test/test_driver.c b/src/test/test_driver.c
index 0d591d5f9952b0b7cd51bacc2e01ada91e40ac78..9456dfe38538a329def14197c64c4024482bcc88 100644
--- a/src/test/test_driver.c
+++ b/src/test/test_driver.c
@@ -1541,7 +1541,7 @@ testConnectBaselineCPU(virConnectPtr conn ATTRIBUTE_UNUSED,
     if (!(cpus = virCPUDefListParse(xmlCPUs, ncpus, VIR_CPU_TYPE_HOST)))
         goto cleanup;
 
-    if (!(cpu = virCPUBaseline(cpus, ncpus, NULL, false)))
+    if (!(cpu = virCPUBaseline(VIR_ARCH_NONE, cpus, ncpus, NULL, false)))
         goto cleanup;
 
     if ((flags & VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES) &&
diff --git a/src/vz/vz_driver.c b/src/vz/vz_driver.c
index d4cf2d5f62255a6100e51ae03b70327583e6855f..50cd0acfdfee0d56b71afea05cd1f9aad68f4a15 100644
--- a/src/vz/vz_driver.c
+++ b/src/vz/vz_driver.c
@@ -934,7 +934,7 @@ vzConnectBaselineCPU(virConnectPtr conn,
     if (!(cpus = virCPUDefListParse(xmlCPUs, ncpus, VIR_CPU_TYPE_HOST)))
         goto cleanup;
 
-    if (!(cpu = virCPUBaseline(cpus, ncpus, NULL, false)))
+    if (!(cpu = virCPUBaseline(VIR_ARCH_NONE, cpus, ncpus, NULL, false)))
         goto cleanup;
 
     if ((flags & VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES) &&
diff --git a/tests/cputest.c b/tests/cputest.c
index beb9afabdfa59b082ef1cf183fce2de2d53c5fc4..9b84ffea86f4f158040384379d5be3695d1c2f0c 100644
--- a/tests/cputest.c
+++ b/tests/cputest.c
@@ -321,7 +321,7 @@ cpuTestBaseline(const void *arg)
     if (!(cpus = cpuTestLoadMultiXML(data->arch, data->name, &ncpus)))
         goto cleanup;
 
-    baseline = virCPUBaseline(cpus, ncpus, NULL,
+    baseline = virCPUBaseline(data->arch, cpus, ncpus, NULL,
                               !!(data->flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE));
 
     if (baseline &&