The parameter can be used to request either VIR_CPU_TYPE_HOST (which has
been assumed so far) or VIR_CPU_TYPE_GUEST definition.
Signed-off-by: Jiri Denemark <jdenemar@xxxxxxxxxx>
---
src/bhyve/bhyve_capabilities.c | 2 +-
src/cpu/cpu.c | 41 ++++++++++++++++++++++++++++++++++++-----
src/cpu/cpu.h | 1 +
src/qemu/qemu_capabilities.c | 2 +-
src/vmware/vmware_conf.c | 2 +-
src/vz/vz_driver.c | 3 ++-
6 files changed, 42 insertions(+), 9 deletions(-)
diff --git a/src/bhyve/bhyve_capabilities.c b/src/bhyve/bhyve_capabilities.c
index c2c9303d7..33e670c5c 100644
--- a/src/bhyve/bhyve_capabilities.c
+++ b/src/bhyve/bhyve_capabilities.c
@@ -47,7 +47,7 @@ virBhyveCapsInitCPU(virCapsPtr caps,
if (nodeGetInfo(&nodeinfo))
return -1;
- if (!(caps->host.cpu = virCPUGetHost(arch, &nodeinfo)))
+ if (!(caps->host.cpu = virCPUGetHost(arch, VIR_CPU_TYPE_HOST, &nodeinfo)))
return -1;
return 0;
diff --git a/src/cpu/cpu.c b/src/cpu/cpu.c
index c1666ed3b..110bb240c 100644
--- a/src/cpu/cpu.c
+++ b/src/cpu/cpu.c
@@ -360,9 +360,18 @@ virCPUDataFree(virCPUDataPtr data)
* virCPUGetHost:
*
* @arch: CPU architecture
+ * @type: requested type of the CPU
* @nodeInfo: simplified CPU topology (optional)
*
- * Create CPU definition describing the host's CPU. If @nodeInfo is not NULL,
+ * Create CPU definition describing the host's CPU.
+ *
+ * The @type (either VIR_CPU_TYPE_HOST or VIR_CPU_TYPE_GUEST) specifies what
+ * type of CPU definition should be created. Specifically, VIR_CPU_TYPE_HOST
+ * CPUs may contain only features without any policy attribute. Requesting
+ * VIR_CPU_TYPE_GUEST provides better results because the CPU is allowed to
+ * contain disabled features.
+ *
+ * If @nodeInfo is not NULL (which is only allowed for VIR_CPU_TYPE_HOST CPUs),
* the CPU definition will have topology (sockets, cores, threads) filled in
* according to the content of @nodeInfo. The function fails only if @nodeInfo
* was not passed in and the assigned CPU driver was not able to detect the
@@ -373,13 +382,14 @@ virCPUDataFree(virCPUDataPtr data)
*/
virCPUDefPtr
virCPUGetHost(virArch arch,
+ virCPUType type,
virNodeInfoPtr nodeInfo)
{
struct cpuArchDriver *driver;
virCPUDefPtr cpu = NULL;
- VIR_DEBUG("arch=%s, nodeInfo=%p",
- virArchToString(arch), nodeInfo);
+ VIR_DEBUG("arch=%s, type=%s, nodeInfo=%p",
+ virArchToString(arch), virCPUTypeToString(type), nodeInfo);
if (!(driver = cpuGetSubDriver(arch)))
return NULL;
@@ -387,8 +397,29 @@ virCPUGetHost(virArch arch,
if (VIR_ALLOC(cpu) < 0)
return NULL;
- cpu->arch = arch;
- cpu->type = VIR_CPU_TYPE_HOST;
+ switch (type) {
+ case VIR_CPU_TYPE_HOST:
+ cpu->arch = arch;
+ cpu->type = type;
+ break;
+
+ case VIR_CPU_TYPE_GUEST:
+ if (nodeInfo) {
+ virReportError(VIR_ERR_INVALID_ARG,
+ _("cannot set topology for CPU type '%s'"),
+ virCPUTypeToString(type));
+ goto error;
+ }
+ cpu->type = type;
+ break;
+
+ case VIR_CPU_TYPE_AUTO:
+ case VIR_CPU_TYPE_LAST:
+ virReportError(VIR_ERR_INVALID_ARG,
+ _("unsupported CPU type: %s"),
+ virCPUTypeToString(type));
+ goto error;
+ }
if (nodeInfo) {
cpu->sockets = nodeInfo->sockets;
diff --git a/src/cpu/cpu.h b/src/cpu/cpu.h
index cbbb45223..e5eca08c3 100644
--- a/src/cpu/cpu.h
+++ b/src/cpu/cpu.h
@@ -170,6 +170,7 @@ virCPUDataFree(virCPUDataPtr data);
virCPUDefPtr
virCPUGetHost(virArch arch,
+ virCPUType type,
virNodeInfoPtr nodeInfo);
char *
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index b0a4861c3..b39014224 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -1070,7 +1070,7 @@ virQEMUCapsInitCPU(virCapsPtr caps,
if (nodeGetInfo(&nodeinfo))
return -1;
- if (!(caps->host.cpu = virCPUGetHost(arch, &nodeinfo)))
+ if (!(caps->host.cpu = virCPUGetHost(arch, VIR_CPU_TYPE_HOST, &nodeinfo)))
return -1;
return 0;
diff --git a/src/vmware/vmware_conf.c b/src/vmware/vmware_conf.c
index d1444e462..cb6d60724 100644
--- a/src/vmware/vmware_conf.c
+++ b/src/vmware/vmware_conf.c
@@ -82,7 +82,7 @@ vmwareCapsInit(void)
NULL, NULL, 0, NULL) == NULL)
goto error;
- if (!(cpu = virCPUGetHost(caps->host.arch, NULL)))
+ if (!(cpu = virCPUGetHost(caps->host.arch, VIR_CPU_TYPE_HOST, NULL)))
goto error;
/* x86_64 guests are supported if
diff --git a/src/vz/vz_driver.c b/src/vz/vz_driver.c
index f97a2045b..67ec2727b 100644
--- a/src/vz/vz_driver.c
+++ b/src/vz/vz_driver.c
@@ -129,7 +129,8 @@ vzBuildCapabilities(void)
if (nodeGetInfo(&nodeinfo))
goto error;
- if (!(caps->host.cpu = virCPUGetHost(caps->host.arch, &nodeinfo)))
+ if (!(caps->host.cpu = virCPUGetHost(caps->host.arch, VIR_CPU_TYPE_HOST,
+ &nodeinfo)))
goto error;
if (virCapabilitiesAddHostMigrateTransport(caps, "vzmigr") < 0)
--
2.12.0
--
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