[libvirt] [PATCH v3 13/20] cpu: Support multiple PVRs in the ppc64 driver
Jiri Denemark
jdenemar at redhat.com
Tue Aug 11 08:26:44 UTC 2015
On Mon, Aug 10, 2015 at 10:55:55 +0200, Andrea Bolognani wrote:
> This will allow us to perform PVR matching more broadly, eg. consider
> both POWER8 and POWER8E CPUs to be the same even though they have
> different PVR values.
> ---
> src/cpu/cpu_ppc64.c | 72 ++++++++++++++++++++++++++++++++++++++++--------
> src/cpu/cpu_ppc64_data.h | 8 +++++-
> 2 files changed, 67 insertions(+), 13 deletions(-)
>
> diff --git a/src/cpu/cpu_ppc64.c b/src/cpu/cpu_ppc64.c
> index 6c78ab8..db25f27 100644
> --- a/src/cpu/cpu_ppc64.c
> +++ b/src/cpu/cpu_ppc64.c
> @@ -60,6 +60,10 @@ struct ppc64_map {
> static void
> ppc64DataFree(virCPUppc64Data *data)
> {
> + if (!data)
> + return;
> +
> + VIR_FREE(data->pvr);
> VIR_FREE(data);
> }
>
> @@ -67,13 +71,24 @@ static virCPUppc64Data *
> ppc64DataCopy(const virCPUppc64Data *data)
> {
> virCPUppc64Data *copy;
> + size_t i;
>
> if (VIR_ALLOC(copy) < 0)
> - return NULL;
> + goto error;
> +
> + if (VIR_ALLOC_N(copy->pvr, data->len) < 0)
> + goto error;
> +
> + copy->len = data->len;
>
> - copy->pvr = data->pvr;
> + for (i = 0; i < data->len; i++)
> + copy->pvr[i].value = data->pvr[i].value;
>
> return copy;
> +
> + error:
> + ppc64DataFree(copy);
> + return NULL;
> }
>
> static void
> @@ -159,12 +174,14 @@ ppc64ModelFindPVR(const struct ppc64_map *map,
> uint32_t pvr)
> {
> struct ppc64_model *model;
> + size_t i;
>
> model = map->models;
> while (model) {
> - if (model->data->pvr == pvr)
> - return model;
> -
> + for (i = 0; i < model->data->len; i++) {
> + if (model->data->pvr[i].value == pvr)
> + return model;
> + }
> model = model->next;
> }
>
> @@ -257,8 +274,16 @@ ppc64ModelLoad(xmlXPathContextPtr ctxt,
> struct ppc64_map *map)
> {
> struct ppc64_model *model;
> + xmlNodePtr *nodes = NULL;
> + xmlNodePtr bookmark;
> char *vendor = NULL;
> unsigned long pvr;
> + size_t i;
> + int n;
> +
> + /* Save the node the context was pointing to, as we're going
> + * to change it later. It's going to be restored on exit */
> + bookmark = ctxt->node;
>
> if (VIR_ALLOC(model) < 0)
> return -1;
> @@ -298,14 +323,30 @@ ppc64ModelLoad(xmlXPathContextPtr ctxt,
> }
> }
>
> - if (!virXPathBoolean("boolean(./pvr)", ctxt) ||
> - virXPathULongHex("string(./pvr/@value)", ctxt, &pvr) < 0) {
> + if ((n = virXPathNodeSet("./pvr", ctxt, &nodes)) <= 0) {
> virReportError(VIR_ERR_INTERNAL_ERROR,
> - _("Missing or invalid PVR value in CPU model %s"),
> + _("Missing PVR information for CPU model %s"),
> model->name);
> goto ignore;
> }
> - model->data->pvr = pvr;
> +
> + if (VIR_ALLOC_N(model->data->pvr, n) < 0)
> + goto ignore;
> +
> + model->data->len = n;
> +
> + for (i = 0; i < n; i++) {
> + ctxt->node = nodes[i];
> +
> + if (!virXPathBoolean("boolean(./@value)", ctxt) ||
> + virXPathULongHex("string(./@value)", ctxt, &pvr) < 0) {
> + virReportError(VIR_ERR_INTERNAL_ERROR,
> + _("Missing or invalid PVR value in CPU model %s"),
> + model->name);
> + goto ignore;
Wrong indentation, s/^ // in the 4 lines above. ACK once it's fixed.
Jirka
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