diff options
Diffstat (limited to 'hw/ppc')
| -rw-r--r-- | hw/ppc/spapr_caps.c | 21 | ||||
| -rw-r--r-- | hw/ppc/spapr_hcall.c | 5 |
2 files changed, 15 insertions, 11 deletions
diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c index faab472..ca35b51 100644 --- a/hw/ppc/spapr_caps.c +++ b/hw/ppc/spapr_caps.c @@ -276,11 +276,13 @@ static void cap_safe_bounds_check_apply(sPAPRMachineState *spapr, uint8_t val, } sPAPRCapPossible cap_ibs_possible = { - .num = 4, + .num = 5, /* Note workaround only maintained for compatibility */ - .vals = {"broken", "workaround", "fixed-ibs", "fixed-ccd"}, - .help = "broken - no protection, fixed-ibs - indirect branch serialisation," - " fixed-ccd - cache count disabled", + .vals = {"broken", "workaround", "fixed-ibs", "fixed-ccd", "fixed-na"}, + .help = "broken - no protection, workaround - count cache flush" + ", fixed-ibs - indirect branch serialisation," + " fixed-ccd - cache count disabled," + " fixed-na - fixed in hardware (no longer applicable)", }; static void cap_safe_indirect_branch_apply(sPAPRMachineState *spapr, @@ -288,15 +290,11 @@ static void cap_safe_indirect_branch_apply(sPAPRMachineState *spapr, { uint8_t kvm_val = kvmppc_get_cap_safe_indirect_branch(); - if (val == SPAPR_CAP_WORKAROUND) { /* Can only be Broken or Fixed */ - error_setg(errp, -"Requested safe indirect branch capability level \"workaround\" not valid, try cap-ibs=%s", - cap_ibs_possible.vals[kvm_val]); - } else if (tcg_enabled() && val) { + if (tcg_enabled() && val) { /* TODO - for now only allow broken for TCG */ error_setg(errp, "Requested safe indirect branch capability level not supported by tcg, try a different value for cap-ibs"); - } else if (kvm_enabled() && val && (val != kvm_val)) { + } else if (kvm_enabled() && (val > kvm_val)) { error_setg(errp, "Requested safe indirect branch capability level not supported by kvm, try cap-ibs=%s", cap_ibs_possible.vals[kvm_val]); @@ -494,7 +492,8 @@ sPAPRCapabilityInfo capability_table[SPAPR_CAP_NUM] = { [SPAPR_CAP_IBS] = { .name = "ibs", .description = - "Indirect Branch Speculation (broken, fixed-ibs, fixed-ccd)", + "Indirect Branch Speculation (broken, workaround, fixed-ibs," + "fixed-ccd, fixed-na)", .index = SPAPR_CAP_IBS, .get = spapr_cap_get_string, .set = spapr_cap_set_string, diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index 476bad6..4aa8036 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -1723,12 +1723,17 @@ static target_ulong h_get_cpu_characteristics(PowerPCCPU *cpu, } switch (safe_indirect_branch) { + case SPAPR_CAP_FIXED_NA: + break; case SPAPR_CAP_FIXED_CCD: characteristics |= H_CPU_CHAR_CACHE_COUNT_DIS; break; case SPAPR_CAP_FIXED_IBS: characteristics |= H_CPU_CHAR_BCCTRL_SERIALISED; break; + case SPAPR_CAP_WORKAROUND: + behaviour |= H_CPU_BEHAV_FLUSH_COUNT_CACHE; + break; default: /* broken */ assert(safe_indirect_branch == SPAPR_CAP_BROKEN); break; |