target/ppc/spapr_caps: Add support for tristate spapr_capabilities

spapr_caps are used to represent the level of support for various
capabilities related to the spapr machine type. Currently there is
only support for boolean capabilities.

Add support for tristate capabilities by implementing their get/set
functions. These capabilities can have the values 0, 1 or 2
corresponding to broken, workaround and fixed.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Suraj Jitindar Singh 2018-01-19 16:00:01 +11:00 committed by David Gibson
parent 8acc2ae5e9
commit 6898aed77f
2 changed files with 70 additions and 0 deletions

View File

@ -73,6 +73,72 @@ 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)
{
sPAPRCapabilityInfo *cap = opaque;
sPAPRMachineState *spapr = SPAPR_MACHINE(obj);
char *val = NULL;
uint8_t value = spapr_get_cap(spapr, cap->index);
switch (value) {
case SPAPR_CAP_BROKEN:
val = g_strdup("broken");
break;
case SPAPR_CAP_WORKAROUND:
val = g_strdup("workaround");
break;
case SPAPR_CAP_FIXED:
val = g_strdup("fixed");
break;
default:
error_setg(errp, "Invalid value (%d) for cap-%s", value, cap->name);
return;
}
visit_type_str(v, name, &val, errp);
g_free(val);
}
static void __attribute__ ((unused)) spapr_cap_set_tristate(Object *obj,
Visitor *v,
const char *name,
void *opaque,
Error **errp)
{
sPAPRCapabilityInfo *cap = opaque;
sPAPRMachineState *spapr = SPAPR_MACHINE(obj);
char *val;
Error *local_err = NULL;
uint8_t value;
visit_type_str(v, name, &val, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
if (!strcasecmp(val, "broken")) {
value = SPAPR_CAP_BROKEN;
} else if (!strcasecmp(val, "workaround")) {
value = SPAPR_CAP_WORKAROUND;
} else if (!strcasecmp(val, "fixed")) {
value = SPAPR_CAP_FIXED;
} else {
error_setg(errp, "Invalid capability mode \"%s\" for cap-%s", val,
cap->name);
goto out;
}
spapr->cmd_line_caps[cap->index] = true;
spapr->eff.caps[cap->index] = value;
out:
g_free(val);
}
static void cap_htm_apply(sPAPRMachineState *spapr, uint8_t val, Error **errp)
{
if (!val) {

View File

@ -69,6 +69,10 @@ typedef enum {
/* Bool Caps */
#define SPAPR_CAP_OFF 0x00
#define SPAPR_CAP_ON 0x01
/* Broken | Workaround | Fixed Caps */
#define SPAPR_CAP_BROKEN 0x00
#define SPAPR_CAP_WORKAROUND 0x01
#define SPAPR_CAP_FIXED 0x02
typedef struct sPAPRCapabilities sPAPRCapabilities;
struct sPAPRCapabilities {