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[PATCHv4,2/8] pseries: Cleanup error handling of spapr_cpu_init()

Message ID 1453174759-22837-3-git-send-email-david@gibson.dropbear.id.au (mailing list archive)
State New, archived
Headers show

Commit Message

David Gibson Jan. 19, 2016, 3:39 a.m. UTC 
Currently spapr_cpu_init() is hardcoded to handle any errors as fatal.
That works for now, since it's only called from initial setup where an
error here means we really can't proceed.

However, we'll want to handle this more flexibly for cpu hotplug in future
so generalize this using the error reporting infrastructure.  While we're
at it make a small cleanup in a related part of ppc_spapr_init() to use
error_report() instead of an old-style explicit fprintf().

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
---
 hw/ppc/spapr.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

Comments

Alexey Kardashevskiy Jan. 19, 2016, 4:30 a.m. UTC | #1 
On 01/19/2016 02:39 PM, David Gibson wrote:
> Currently spapr_cpu_init() is hardcoded to handle any errors as fatal.
> That works for now, since it's only called from initial setup where an
> error here means we really can't proceed.
>
> However, we'll want to handle this more flexibly for cpu hotplug in future
> so generalize this using the error reporting infrastructure.  While we're
> at it make a small cleanup in a related part of ppc_spapr_init() to use
> error_report() instead of an old-style explicit fprintf().
>
> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>

Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>


> ---
>   hw/ppc/spapr.c | 15 +++++++++++----
>   1 file changed, 11 insertions(+), 4 deletions(-)
>
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index fa7a7f4..b7fd09a 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -1617,7 +1617,8 @@ static void spapr_boot_set(void *opaque, const char *boot_device,
>       machine->boot_order = g_strdup(boot_device);
>   }
>
> -static void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu)
> +static void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu,
> +                           Error **errp)
>   {
>       CPUPPCState *env = &cpu->env;
>
> @@ -1635,7 +1636,13 @@ static void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu)
>       }
>
>       if (cpu->max_compat) {
> -        ppc_set_compat(cpu, cpu->max_compat, &error_fatal);
> +        Error *local_err = NULL;
> +
> +        ppc_set_compat(cpu, cpu->max_compat, &local_err);
> +        if (local_err) {
> +            error_propagate(errp, local_err);
> +            return;
> +        }
>       }
>
>       xics_cpu_setup(spapr->icp, cpu);
> @@ -1804,10 +1811,10 @@ static void ppc_spapr_init(MachineState *machine)
>       for (i = 0; i < smp_cpus; i++) {
>           cpu = cpu_ppc_init(machine->cpu_model);
>           if (cpu == NULL) {
> -            fprintf(stderr, "Unable to find PowerPC CPU definition\n");
> +            error_report("Unable to find PowerPC CPU definition");
>               exit(1);
>           }
> -        spapr_cpu_init(spapr, cpu);
> +        spapr_cpu_init(spapr, cpu, &error_fatal);
>       }
>
>       if (kvm_enabled()) {
>
diff mbox

Patch

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index fa7a7f4..b7fd09a 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1617,7 +1617,8 @@  static void spapr_boot_set(void *opaque, const char *boot_device,
     machine->boot_order = g_strdup(boot_device);
 }
 
-static void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu)
+static void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu,
+                           Error **errp)
 {
     CPUPPCState *env = &cpu->env;
 
@@ -1635,7 +1636,13 @@  static void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu)
     }
 
     if (cpu->max_compat) {
-        ppc_set_compat(cpu, cpu->max_compat, &error_fatal);
+        Error *local_err = NULL;
+
+        ppc_set_compat(cpu, cpu->max_compat, &local_err);
+        if (local_err) {
+            error_propagate(errp, local_err);
+            return;
+        }
     }
 
     xics_cpu_setup(spapr->icp, cpu);
@@ -1804,10 +1811,10 @@  static void ppc_spapr_init(MachineState *machine)
     for (i = 0; i < smp_cpus; i++) {
         cpu = cpu_ppc_init(machine->cpu_model);
         if (cpu == NULL) {
-            fprintf(stderr, "Unable to find PowerPC CPU definition\n");
+            error_report("Unable to find PowerPC CPU definition");
             exit(1);
         }
-        spapr_cpu_init(spapr, cpu);
+        spapr_cpu_init(spapr, cpu, &error_fatal);
     }
 
     if (kvm_enabled()) {