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Re: [Qemu-ppc] [PATCH v3 4/7] ppc: open code cpu creation for machine ty
From: |
David Gibson |
Subject: |
Re: [Qemu-ppc] [PATCH v3 4/7] ppc: open code cpu creation for machine types |
Date: |
Thu, 7 Jul 2016 11:54:12 +1000 |
User-agent: |
Mutt/1.6.1 (2016-04-27) |
On Wed, Jul 06, 2016 at 02:14:25PM +0200, Greg Kurz wrote:
> If we want to generate cpu_dt_id in the machine code, this must occur
> before the cpu gets realized. We must open code the cpu creation to be
> able to do this.
>
> This patch just does that.
>
> Signed-off-by: Greg Kurz <address@hidden>
> ---
> v3: don't parse cpu features as it is done in a previous patch
Reviewed-by: David Gibson <address@hidden>
> ---
> hw/ppc/ppc.c | 32 +++++++++++++++++++++++++++++++-
> 1 file changed, 31 insertions(+), 1 deletion(-)
>
> diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c
> index 313b3f0b9a51..0df32a9b3965 100644
> --- a/hw/ppc/ppc.c
> +++ b/hw/ppc/ppc.c
> @@ -32,6 +32,7 @@
> #include "sysemu/cpus.h"
> #include "hw/timer/m48t59.h"
> #include "qemu/log.h"
> +#include "qapi/error.h"
> #include "qemu/error-report.h"
> #include "qapi/error.h"
> #include "hw/loader.h"
> @@ -1354,7 +1355,36 @@ PowerPCCPU *ppc_get_vcpu_by_dt_id(int cpu_dt_id)
>
> PowerPCCPU *ppc_cpu_init(const char *cpu_model)
> {
> - return POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model));
> + PowerPCCPU *cpu;
> + ObjectClass *oc;
> + gchar **model_pieces;
> + Error *err = NULL;
> +
> + model_pieces = g_strsplit(cpu_model, ",", 2);
> + if (!model_pieces[0]) {
> + error_report("Invalid/empty CPU model name");
> + return NULL;
> + }
> +
> + oc = cpu_class_by_name(TYPE_POWERPC_CPU, model_pieces[0]);
> + if (oc == NULL) {
> + error_report("Unable to find CPU definition: %s", model_pieces[0]);
> + goto out;
> + }
> +
> + cpu = POWERPC_CPU(object_new(object_class_get_name(oc)));
> + object_property_set_bool(OBJECT(cpu), true, "realized", &err);
> +
> +out:
> + g_strfreev(model_pieces);
> +
> + if (err != NULL) {
> + error_report_err(err);
> + object_unref(OBJECT(cpu));
> + return NULL;
> + }
> +
> + return cpu;
> }
>
> void ppc_cpu_parse_features(const char *cpu_model)
>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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[Qemu-ppc] [PATCH v3 6/7] ppc: drop vcpu_idt_id bits from the target code, Greg Kurz, 2016/07/06
[Qemu-ppc] [PATCH v3 7/7] spapr: consolidate the logic of core cpu_dt_id, Greg Kurz, 2016/07/06