diff options
Diffstat (limited to 'hw/ppc/spapr_caps.c')
| -rw-r--r-- | hw/ppc/spapr_caps.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c index b5a991f..8748692 100644 --- a/hw/ppc/spapr_caps.c +++ b/hw/ppc/spapr_caps.c @@ -271,14 +271,26 @@ static void cap_safe_cache_apply(sPAPRMachineState *spapr, uint8_t val, } } +sPAPRCapPossible cap_sbbc_possible = { + .num = 3, + .vals = {"broken", "workaround", "fixed"}, + .help = "broken - no protection, workaround - workaround available," + " fixed - fixed in hardware", +}; + static void cap_safe_bounds_check_apply(sPAPRMachineState *spapr, uint8_t val, Error **errp) { + uint8_t kvm_val = kvmppc_get_cap_safe_bounds_check(); + if (tcg_enabled() && val) { /* TODO - for now only allow broken for TCG */ - error_setg(errp, "Requested safe bounds check capability level not supported by tcg, try a different value for cap-sbbc"); - } else if (kvm_enabled() && (val > kvmppc_get_cap_safe_bounds_check())) { - error_setg(errp, "Requested safe bounds check capability level not supported by kvm, try a different value for cap-sbbc"); + error_setg(errp, +"Requested safe bounds check capability level not supported by tcg, try a different value for cap-sbbc"); + } else if (kvm_enabled() && (val > kvm_val)) { + error_setg(errp, +"Requested safe bounds check capability level not supported by kvm, try cap-sbbc=%s", + cap_sbbc_possible.vals[kvm_val]); } } @@ -339,9 +351,10 @@ sPAPRCapabilityInfo capability_table[SPAPR_CAP_NUM] = { .name = "sbbc", .description = "Speculation Barrier Bounds Checking" VALUE_DESC_TRISTATE, .index = SPAPR_CAP_SBBC, - .get = spapr_cap_get_tristate, - .set = spapr_cap_set_tristate, + .get = spapr_cap_get_string, + .set = spapr_cap_set_string, .type = "string", + .possible = &cap_sbbc_possible, .apply = cap_safe_bounds_check_apply, }, [SPAPR_CAP_IBS] = { |