On Thu, Oct 12, 2017 at 07:23:25 -0400, John Ferlan wrote:
On 10/04/2017 10:58 AM, Jiri Denemark wrote:
> When a hypervisor marks a CPU model as unusable on the current host, it
> may also give us a list of features which prevent the model from being
> usable. Storing this list in virDomainCapsCPUModel will help the CPU
> driver with creating a host-model CPU configuration.
>
> Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com>
> ---
> src/conf/domain_capabilities.c | 30 ++++++++++++++++++++++--------
> src/conf/domain_capabilities.h | 7 +++++--
> src/qemu/qemu_capabilities.c | 11 ++++++-----
> tests/domaincapstest.c | 6 +++---
> 4 files changed, 36 insertions(+), 18 deletions(-)
>
> diff --git a/src/conf/domain_capabilities.c b/src/conf/domain_capabilities.c
> index f62038b96c..be34576204 100644
> --- a/src/conf/domain_capabilities.c
> +++ b/src/conf/domain_capabilities.c
> @@ -163,7 +163,8 @@ virDomainCapsCPUModelsCopy(virDomainCapsCPUModelsPtr old)
> for (i = 0; i < old->nmodels; i++) {
> if (virDomainCapsCPUModelsAdd(cpuModels,
> old->models[i].name, -1,
> - old->models[i].usable) < 0)
> + old->models[i].usable,
> + old->models[i].blockers) < 0)
> goto error;
> }
>
> @@ -195,7 +196,8 @@ virDomainCapsCPUModelsFilter(virDomainCapsCPUModelsPtr old,
>
> if (virDomainCapsCPUModelsAdd(cpuModels,
> old->models[i].name, -1,
> - old->models[i].usable) < 0)
> + old->models[i].usable,
> + old->models[i].blockers) < 0)
> goto error;
> }
>
> @@ -210,7 +212,8 @@ virDomainCapsCPUModelsFilter(virDomainCapsCPUModelsPtr old,
> int
> virDomainCapsCPUModelsAddSteal(virDomainCapsCPUModelsPtr cpuModels,
> char **name,
> - virDomainCapsCPUUsable usable)
> + virDomainCapsCPUUsable usable,
> + char ***blockers)
> {
> if (VIR_RESIZE_N(cpuModels->models, cpuModels->nmodels_max,
> cpuModels->nmodels, 1) < 0)
> @@ -218,6 +221,10 @@ virDomainCapsCPUModelsAddSteal(virDomainCapsCPUModelsPtr
cpuModels,
>
> cpuModels->models[cpuModels->nmodels].usable = usable;
> VIR_STEAL_PTR(cpuModels->models[cpuModels->nmodels].name, *name);
> +
> + if (blockers)
> + VIR_STEAL_PTR(cpuModels->models[cpuModels->nmodels].blockers,
*blockers);
> +
So @name is required and @blockers can be NULL/optional... Hopefully no
one ever gets confused.
I don't think there's any room for confusion since @blockers only make
sense if the CPU model @name is unusable. They are naturally optional.
Jirka