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author | Suraj Jitindar Singh <sjitindarsingh@gmail.com> | 2018-03-01 17:37:59 +1100 |
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committer | David Gibson <david@gibson.dropbear.id.au> | 2018-03-06 13:16:29 +1100 |
commit | 87175d1bc5272fff5cffb05c410b39f839dfc948 (patch) | |
tree | 6ed3acda9f3268d8bc0ff2ccafe49dd36beebafb /hw/ppc | |
parent | cb931c2108a59db0b4a22f0c439ee7362c4f95ab (diff) | |
download | qemu-87175d1bc5272fff5cffb05c410b39f839dfc948.zip qemu-87175d1bc5272fff5cffb05c410b39f839dfc948.tar.gz qemu-87175d1bc5272fff5cffb05c410b39f839dfc948.tar.bz2 |
ppc/spapr-caps: Add support for custom spapr_capabilities
There are currently 2 implemented types of spapr-caps, boolean and
tristate. However there may be a need for caps which don't fit either of
these options. Add a custom capability type for which a list of custom
valid strings can be specified and implement the get/set functions for
these. Also add a field for help text to describe the available options.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[dwg: Change "help" option to "?" matching qemu conventions]
[dwg: Add ATTRIBUTE_UNUSED to avoid breaking bisect]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc')
-rw-r--r-- | hw/ppc/spapr_caps.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c index 99a4b71..3d8b796 100644 --- a/hw/ppc/spapr_caps.c +++ b/hw/ppc/spapr_caps.c @@ -32,6 +32,20 @@ #include "hw/ppc/spapr.h" +typedef struct sPAPRCapPossible { + int num; /* size of vals array below */ + const char *help; /* help text for vals */ + /* + * Note: + * - because of the way compatibility is determined vals MUST be ordered + * such that later options are a superset of all preceding options. + * - the order of vals must be preserved, that is their index is important, + * however vals may be added to the end of the list so long as the above + * point is observed + */ + const char *vals[]; +} sPAPRCapPossible; + typedef struct sPAPRCapabilityInfo { const char *name; const char *description; @@ -41,6 +55,8 @@ typedef struct sPAPRCapabilityInfo { ObjectPropertyAccessor *get; ObjectPropertyAccessor *set; const char *type; + /* Possible values if this is a custom string type */ + sPAPRCapPossible *possible; /* Make sure the virtual hardware can support this capability */ void (*apply)(sPAPRMachineState *spapr, uint8_t val, Error **errp); } sPAPRCapabilityInfo; @@ -133,6 +149,60 @@ out: g_free(val); } +static void ATTRIBUTE_UNUSED spapr_cap_get_string(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); + + if (value >= cap->possible->num) { + error_setg(errp, "Invalid value (%d) for cap-%s", value, cap->name); + return; + } + + val = g_strdup(cap->possible->vals[value]); + + visit_type_str(v, name, &val, errp); + g_free(val); +} + +static void ATTRIBUTE_UNUSED spapr_cap_set_string(Object *obj, Visitor *v, + const char *name, + void *opaque, Error **errp) +{ + sPAPRCapabilityInfo *cap = opaque; + sPAPRMachineState *spapr = SPAPR_MACHINE(obj); + Error *local_err = NULL; + uint8_t i; + char *val; + + visit_type_str(v, name, &val, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + + if (!strcmp(val, "?")) { + error_setg(errp, "%s", cap->possible->help); + goto out; + } + for (i = 0; i < cap->possible->num; i++) { + if (!strcasecmp(val, cap->possible->vals[i])) { + spapr->cmd_line_caps[cap->index] = true; + spapr->eff.caps[cap->index] = i; + goto out; + } + } + + error_setg(errp, "Invalid capability mode \"%s\" for cap-%s", val, + cap->name); +out: + g_free(val); +} + static void cap_htm_apply(sPAPRMachineState *spapr, uint8_t val, Error **errp) { if (!val) { |