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-rw-r--r--hw/ppc/spapr_caps.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c
index e69d308560..99a4b71d19 100644
--- a/hw/ppc/spapr_caps.c
+++ b/hw/ppc/spapr_caps.c
@@ -205,7 +205,9 @@ static void cap_safe_bounds_check_apply(sPAPRMachineState *spapr, uint8_t val,
static void cap_safe_indirect_branch_apply(sPAPRMachineState *spapr,
uint8_t val, Error **errp)
{
- if (tcg_enabled() && val) {
+ 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=fixed");
+ } else 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 > kvmppc_get_cap_safe_indirect_branch())) {
@@ -263,7 +265,7 @@ sPAPRCapabilityInfo capability_table[SPAPR_CAP_NUM] = {
},
[SPAPR_CAP_IBS] = {
.name = "ibs",
- .description = "Indirect Branch Serialisation" VALUE_DESC_TRISTATE,
+ .description = "Indirect Branch Serialisation (broken, fixed)",
.index = SPAPR_CAP_IBS,
.get = spapr_cap_get_tristate,
.set = spapr_cap_set_tristate,