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cpu: Forbid model fallback in the ppc64 driver

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Unlike what happens on x86, on ppc64 you can't mix and match CPU
features to obtain the guest CPU you want regardless of the host
CPU, so the concept of model fallback doesn't apply.

Make sure CPU definitions emitted by the driver, eg. as output of
the cpuBaseline() and cpuUpdate() calls, reflect this fact.
This commit is contained in:
Andrea Bolognani 2015-08-07 17:39:19 +02:00
parent dee2247afa
commit 344d1675e8
1 changed files with 2 additions and 0 deletions
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2
src/cpu/cpu_ppc64.c
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@ -670,6 +670,7 @@ ppc64DriverUpdate(virCPUDefPtr guest,
case VIR_CPU_MODE_HOST_MODEL:
case VIR_CPU_MODE_HOST_PASSTHROUGH:
guest->match = VIR_CPU_MATCH_EXACT;
guest->fallback = VIR_CPU_FALLBACK_FORBID;
virCPUDefFreeModel(guest);
return virCPUDefCopyModel(guest, host, true);
@ -768,6 +769,7 @@ ppc64DriverBaseline(virCPUDefPtr *cpus,
cpu->type = VIR_CPU_TYPE_GUEST;
cpu->match = VIR_CPU_MATCH_EXACT;
cpu->fallback = VIR_CPU_FALLBACK_FORBID;
cleanup:
ppc64MapFree(map);