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qemu: Store migratable host CPU model in qemuCaps 

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
This commit is contained in:
Jiri Denemark 2017-03-29 15:31:17 +02:00
parent 68507d77d3
commit dfc711dc8c
1 changed files with 71 additions and 20 deletions
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91
src/qemu/qemu_capabilities.c
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@ -373,6 +373,14 @@ struct virQEMUCapsMachineType {
unsigned int maxCpus;
bool hotplugCpus;
};
typedef struct _virQEMUCapsCPUModel virQEMUCapsCPUModel;
typedef virQEMUCapsCPUModel *virQEMUCapsCPUModelPtr;
struct _virQEMUCapsCPUModel {
virCPUDefPtr full;
virCPUDefPtr migratable;
};
/*
* Update the XML parser/formatter when adding more
* information to this struct so that it gets cached
@ -415,8 +423,8 @@ struct _virQEMUCaps {
* time we probe QEMU or load the results from the cache.
*/
struct {
virCPUDefPtr kvm;
virCPUDefPtr tcg;
virQEMUCapsCPUModel kvm;
virQEMUCapsCPUModel tcg;
} hostCPU;
};
@ -2101,12 +2109,20 @@ virQEMUCapsCopyHostCPUData(virQEMUCapsPtr dst,
!(dst->tcgCPUModelInfo = qemuMonitorCPUModelInfoCopy(src->tcgCPUModelInfo)))
return -1;
if (src->hostCPU.kvm &&
!(dst->hostCPU.kvm = virCPUDefCopy(src->hostCPU.kvm)))
if (src->hostCPU.kvm.full &&
!(dst->hostCPU.kvm.full = virCPUDefCopy(src->hostCPU.kvm.full)))
return -1;
if (src->hostCPU.tcg &&
!(dst->hostCPU.tcg = virCPUDefCopy(src->hostCPU.tcg)))
if (src->hostCPU.kvm.migratable &&
!(dst->hostCPU.kvm.migratable = virCPUDefCopy(src->hostCPU.kvm.migratable)))
return -1;
if (src->hostCPU.tcg.full &&
!(dst->hostCPU.tcg.full = virCPUDefCopy(src->hostCPU.tcg.full)))
return -1;
if (src->hostCPU.tcg.migratable &&
!(dst->hostCPU.tcg.migratable = virCPUDefCopy(src->hostCPU.tcg.migratable)))
return -1;
return 0;
@ -2201,8 +2217,10 @@ void virQEMUCapsDispose(void *obj)
qemuMonitorCPUModelInfoFree(qemuCaps->kvmCPUModelInfo);
qemuMonitorCPUModelInfoFree(qemuCaps->tcgCPUModelInfo);
virCPUDefFree(qemuCaps->hostCPU.kvm);
virCPUDefFree(qemuCaps->hostCPU.tcg);
virCPUDefFree(qemuCaps->hostCPU.kvm.full);
virCPUDefFree(qemuCaps->hostCPU.kvm.migratable);
virCPUDefFree(qemuCaps->hostCPU.tcg.full);
virCPUDefFree(qemuCaps->hostCPU.tcg.migratable);
}
void
@ -2431,9 +2449,9 @@ virQEMUCapsGetHostModel(virQEMUCapsPtr qemuCaps,
virDomainVirtType type)
{
if (type == VIR_DOMAIN_VIRT_KVM)
return qemuCaps->hostCPU.kvm;
return qemuCaps->hostCPU.kvm.full;
else
return qemuCaps->hostCPU.tcg;
return qemuCaps->hostCPU.tcg.full;
}
@ -3280,26 +3298,40 @@ virQEMUCapsInitCPUModel(virQEMUCapsPtr qemuCaps,
}
static virCPUDefPtr
virQEMUCapsNewHostCPUModel(void)
{
virCPUDefPtr cpu;
if (VIR_ALLOC(cpu) < 0)
return NULL;
cpu->type = VIR_CPU_TYPE_GUEST;
cpu->mode = VIR_CPU_MODE_CUSTOM;
cpu->match = VIR_CPU_MATCH_EXACT;
cpu->fallback = VIR_CPU_FALLBACK_ALLOW;
return cpu;
}
void
virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
virCapsPtr caps,
virDomainVirtType type)
{
virCPUDefPtr cpu = NULL;
virCPUDefPtr migCPU = NULL;
virCPUDefPtr hostCPU = NULL;
virQEMUCapsCPUModelPtr model;
int rc;
if (!caps || !virQEMUCapsGuestIsNative(caps->host.arch, qemuCaps->arch))
return;
if (VIR_ALLOC(cpu) < 0)
if (!(cpu = virQEMUCapsNewHostCPUModel()))
goto error;
cpu->type = VIR_CPU_TYPE_GUEST;
cpu->mode = VIR_CPU_MODE_CUSTOM;
cpu->match = VIR_CPU_MATCH_EXACT;
cpu->fallback = VIR_CPU_FALLBACK_ALLOW;
if ((rc = virQEMUCapsInitCPUModel(qemuCaps, type, cpu, false)) < 0) {
goto error;
} else if (rc == 1) {
@ -3313,10 +3345,26 @@ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
goto error;
}
if (!(migCPU = virQEMUCapsNewHostCPUModel()))
goto error;
if ((rc = virQEMUCapsInitCPUModel(qemuCaps, type, migCPU, true)) < 0) {
goto error;
} else if (rc == 1) {
VIR_DEBUG("CPU migratibility not provided by QEMU");
virCPUDefFree(migCPU);
if (!(migCPU = virCPUCopyMigratable(qemuCaps->arch, cpu)))
goto error;
}
if (type == VIR_DOMAIN_VIRT_KVM)
qemuCaps->hostCPU.kvm = cpu;
model = &qemuCaps->hostCPU.kvm;
else
qemuCaps->hostCPU.tcg = cpu;
model = &qemuCaps->hostCPU.tcg;
model->full = cpu;
model->migratable = migCPU;
cleanup:
virCPUDefFree(hostCPU);
@ -3324,6 +3372,7 @@ virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
error:
virCPUDefFree(cpu);
virCPUDefFree(migCPU);
virResetLastError();
goto cleanup;
}
@ -4071,8 +4120,10 @@ virQEMUCapsReset(virQEMUCapsPtr qemuCaps)
qemuCaps->kvmCPUModelInfo = NULL;
qemuCaps->tcgCPUModelInfo = NULL;
virCPUDefFree(qemuCaps->hostCPU.kvm);
virCPUDefFree(qemuCaps->hostCPU.tcg);
virCPUDefFree(qemuCaps->hostCPU.kvm.full);
virCPUDefFree(qemuCaps->hostCPU.kvm.migratable);
virCPUDefFree(qemuCaps->hostCPU.tcg.full);
virCPUDefFree(qemuCaps->hostCPU.tcg.migratable);
memset(&qemuCaps->hostCPU, 0, sizeof(qemuCaps->hostCPU));
}