spapr capabilities have an apply hook to actually activate (or deactivate) the feature in the system at reset time. However, a number of capabilities affect the setup of cpus, and need to be applied to each of them - including hotplugged cpus for extra complication. To make this simpler, add an optional cpu_apply hook that is called from spapr_cpu_reset().
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <gr...@kaod.org> Reviewed-by: Cédric Le Goater <c...@kaod.org> --- hw/ppc/spapr_caps.c | 19 +++++++++++++++++++ hw/ppc/spapr_cpu_core.c | 2 ++ include/hw/ppc/spapr.h | 1 + 3 files changed, 22 insertions(+) diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c index dabed817d1..68a4243efc 100644 --- a/hw/ppc/spapr_caps.c +++ b/hw/ppc/spapr_caps.c @@ -59,6 +59,8 @@ typedef struct sPAPRCapabilityInfo { sPAPRCapPossible *possible; /* Make sure the virtual hardware can support this capability */ void (*apply)(sPAPRMachineState *spapr, uint8_t val, Error **errp); + void (*cpu_apply)(sPAPRMachineState *spapr, PowerPCCPU *cpu, + uint8_t val, Error **errp); } sPAPRCapabilityInfo; static void spapr_cap_get_bool(Object *obj, Visitor *v, const char *name, @@ -472,6 +474,23 @@ void spapr_caps_apply(sPAPRMachineState *spapr) } } +void spapr_caps_cpu_apply(sPAPRMachineState *spapr, PowerPCCPU *cpu) +{ + int i; + + for (i = 0; i < SPAPR_CAP_NUM; i++) { + sPAPRCapabilityInfo *info = &capability_table[i]; + + /* + * If the apply function can't set the desired level and thinks it's + * fatal, it should cause that. + */ + if (info->cpu_apply) { + info->cpu_apply(spapr, cpu, spapr->eff.caps[i], &error_fatal); + } + } +} + void spapr_caps_add_properties(sPAPRMachineClass *smc, Error **errp) { Error *local_err = NULL; diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c index 67f1596c57..bfb94f650c 100644 --- a/hw/ppc/spapr_cpu_core.c +++ b/hw/ppc/spapr_cpu_core.c @@ -76,6 +76,8 @@ static void spapr_cpu_reset(void *opaque) spapr_cpu->slb_shadow_size = 0; spapr_cpu->dtl_addr = 0; spapr_cpu->dtl_size = 0; + + spapr_caps_cpu_apply(SPAPR_MACHINE(qdev_get_machine()), cpu); } void spapr_cpu_set_entry_state(PowerPCCPU *cpu, target_ulong nip, target_ulong r3) diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index 9dbd6010f5..9dd46a72f6 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -800,6 +800,7 @@ static inline uint8_t spapr_get_cap(sPAPRMachineState *spapr, int cap) void spapr_caps_init(sPAPRMachineState *spapr); void spapr_caps_apply(sPAPRMachineState *spapr); +void spapr_caps_cpu_apply(sPAPRMachineState *spapr, PowerPCCPU *cpu); void spapr_caps_add_properties(sPAPRMachineClass *smc, Error **errp); int spapr_caps_post_migration(sPAPRMachineState *spapr); -- 2.17.1