diff options
| author | Suraj Jitindar Singh <sjitindarsingh@gmail.com> | 2018-01-19 16:00:02 +1100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2018-01-29 14:24:55 +1100 |
| commit | 8f38eaf8f9dd194c9961cf76c675724930ce4570 (patch) | |
| tree | 70ff3cdc48a9051a60dd6e0b97db8d87922156ec /hw/ppc/spapr_caps.c | |
| parent | 6898aed77f4636c3e77af9c12631f583f22cb5db (diff) | |
| download | qemu-8f38eaf8f9dd194c9961cf76c675724930ce4570.tar.gz | |
target/ppc/spapr_caps: Add new tristate cap safe_cache
Add new tristate cap cap-cfpc to represent the cache flush on privilege
change capability.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc/spapr_caps.c')
| -rw-r--r-- | hw/ppc/spapr_caps.c | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c index d6f82b18fc..d53da63b1c 100644 --- a/hw/ppc/spapr_caps.c +++ b/hw/ppc/spapr_caps.c @@ -73,11 +73,8 @@ static void spapr_cap_set_bool(Object *obj, Visitor *v, const char *name, spapr->eff.caps[cap->index] = value ? SPAPR_CAP_ON : SPAPR_CAP_OFF; } -static void __attribute__ ((unused)) spapr_cap_get_tristate(Object *obj, - Visitor *v, - const char *name, - void *opaque, - Error **errp) +static void spapr_cap_get_tristate(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) { sPAPRCapabilityInfo *cap = opaque; sPAPRMachineState *spapr = SPAPR_MACHINE(obj); @@ -103,11 +100,8 @@ static void __attribute__ ((unused)) spapr_cap_get_tristate(Object *obj, g_free(val); } -static void __attribute__ ((unused)) spapr_cap_set_tristate(Object *obj, - Visitor *v, - const char *name, - void *opaque, - Error **errp) +static void spapr_cap_set_tristate(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) { sPAPRCapabilityInfo *cap = opaque; sPAPRMachineState *spapr = SPAPR_MACHINE(obj); @@ -186,6 +180,18 @@ static void cap_dfp_apply(sPAPRMachineState *spapr, uint8_t val, Error **errp) } } +static void cap_safe_cache_apply(sPAPRMachineState *spapr, uint8_t val, + Error **errp) +{ + if (tcg_enabled() && val) { + /* TODO - for now only allow broken for TCG */ + error_setg(errp, "Requested safe cache capability level not supported by tcg, try a different value for cap-cfpc"); + } else if (kvm_enabled() && (val > kvmppc_get_cap_safe_cache())) { + error_setg(errp, "Requested safe cache capability level not supported by kvm, try a different value for cap-cfpc"); + } +} + +#define VALUE_DESC_TRISTATE " (broken, workaround, fixed)" sPAPRCapabilityInfo capability_table[SPAPR_CAP_NUM] = { [SPAPR_CAP_HTM] = { @@ -215,6 +221,15 @@ sPAPRCapabilityInfo capability_table[SPAPR_CAP_NUM] = { .type = "bool", .apply = cap_dfp_apply, }, + [SPAPR_CAP_CFPC] = { + .name = "cfpc", + .description = "Cache Flush on Privilege Change" VALUE_DESC_TRISTATE, + .index = SPAPR_CAP_CFPC, + .get = spapr_cap_get_tristate, + .set = spapr_cap_set_tristate, + .type = "string", + .apply = cap_safe_cache_apply, + }, }; static sPAPRCapabilities default_caps_with_cpu(sPAPRMachineState *spapr, @@ -320,6 +335,7 @@ const VMStateDescription vmstate_spapr_cap_##cap = { \ SPAPR_CAP_MIG_STATE(htm, HTM); SPAPR_CAP_MIG_STATE(vsx, VSX); SPAPR_CAP_MIG_STATE(dfp, DFP); +SPAPR_CAP_MIG_STATE(cfpc, CFPC); void spapr_caps_reset(sPAPRMachineState *spapr) { |