Re: [Qemu-devel] [PATCH v2] ppc: spapr-rtas - implement os-term rtas call

[Alexander Graf <agraf@suse.de>]

On 12.06.14 14:09, Nikunj A Dadhania wrote:
> PAPR compliant guest calls this in absence of kdump. After
> receiving this call qemu could trigger a guest dump. This guest dump
> can be used to analyse using crash tool.
>
> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
> ---
>
> v2: indentation fixes
>
>   hw/ppc/spapr_rtas.c | 32 ++++++++++++++++++++++++++++++++
>   1 file changed, 32 insertions(+)
>
> diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c
> index ea4a2b2..f030e73 100644
> --- a/hw/ppc/spapr_rtas.c
> +++ b/hw/ppc/spapr_rtas.c
> @@ -29,6 +29,8 @@
>   #include "sysemu/char.h"
>   #include "hw/qdev.h"
>   #include "sysemu/device_tree.h"
> +#include "qapi/qmp/qjson.h"
> +#include "monitor/monitor.h"
>   
>   #include "hw/ppc/spapr.h"
>   #include "hw/ppc/spapr_vio.h"
> @@ -267,6 +269,34 @@ static void rtas_ibm_set_system_parameter(PowerPCCPU *cpu,
>       rtas_st(rets, 0, ret);
>   }
>   
> +static void rtas_ibm_os_term(PowerPCCPU *cpu,
> +                             sPAPREnvironment *spapr,
> +                             uint32_t token, uint32_t nargs,
> +                             target_ulong args,
> +                             uint32_t nret, target_ulong rets)
> +{
> +    target_ulong ret = 0;
> +    QObject *data;
> +
> +    data = qobject_from_jsonf("{ 'action': %s }", "pause");
> +    monitor_protocol_event(QEVENT_GUEST_PANICKED, data);
> +    qobject_decref(data);
> +    vm_stop(RUN_STATE_GUEST_PANICKED);
> +
> +    rtas_st(rets, 0, ret);
> +}
> +
> +static void rtas_ibm_ext_os_term(PowerPCCPU *cpu,
> +                                 sPAPREnvironment *spapr,
> +                                 uint32_t token, uint32_t nargs,
> +                                 target_ulong args,
> +                                 uint32_t nret, target_ulong rets)
> +{
> +    target_ulong ret = 0;
> +
> +    rtas_st(rets, 0, ret);
> +}
> +
>   static struct rtas_call {
>       const char *name;
>       spapr_rtas_fn fn;
> @@ -392,6 +422,8 @@ static void core_rtas_register_types(void)
>                           rtas_ibm_get_system_parameter);
>       spapr_rtas_register("ibm,set-system-parameter",
>                           rtas_ibm_set_system_parameter);
> +    spapr_rtas_register("ibm,os-term", rtas_ibm_os_term);
> +    spapr_rtas_register("ibm,extended-os-term", rtas_ibm_ext_os_term);

Why do we need the extended-os-term if we don't do anything with it?


Alex


>   }
>   
>   type_init(core_rtas_register_types)