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Re: [Qemu-devel] [PATCH 02/10] target-i386: cpu: convert existing dynami
From: |
Andreas Färber |
Subject: |
Re: [Qemu-devel] [PATCH 02/10] target-i386: cpu: convert existing dynamic properties into static properties |
Date: |
Fri, 26 Apr 2013 18:20:29 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130329 Thunderbird/17.0.5 |
Am 25.02.2013 02:03, schrieb Igor Mammedov:
> Following properties are converted:
> * vendor
> * xlevel
> * custom setter/getter replaced by qdev's DEFINE_PROP_UINT32
> * level
> * custom setter/getter replaced by qdev's DEFINE_PROP_UINT32
> * tsc-frequency
> * stepping
> * model
> * family
> * model-id
> * check "if (model_id == NULL)" looks unnecessary now, since all
> builtin model-ids are not NULL and user shouldn't be able to set
> it NULL (cpumodel string parsing code takes care of it, if feature
> is specified as "model-id=" on command line, its parsing will
> result in an empty string as value).
>
> Common changes to all properties:
> * string properties: changed function signature to conform to form used in
> qdev-properties.c
>
> * extra change is addition of feat2prop() helper to deal with properties
> naming using '-' instead of '_'. Used in this patch for 'model_id' name
> conversion and converting along the way 'hv-spinlocks', but will be
> reused in following patches for "hv_*" and +-foo conversions as well.
>
> Signed-off-by: Igor Mammedov <address@hidden>
> v2:
> - removed s/error_set/error_setg/;s/QERR*/with similar message/
> - made PropertyInfo static
> - Left setters/getters atwher they have been, only signature change
> + usin visitors where needed
> - use g_malloc0() instead of g_malloc() in x86_cpuid_get_model_id()
> ---
> target-i386/cpu.c | 174
> ++++++++++++++++++++++++++++++++---------------------
> 1 files changed, 105 insertions(+), 69 deletions(-)
>
> diff --git a/target-i386/cpu.c b/target-i386/cpu.c
> index dfcf86e..5626931 100644
> --- a/target-i386/cpu.c
> +++ b/target-i386/cpu.c
[...]
> @@ -1297,6 +1345,17 @@ static int cpu_x86_find_by_name(x86_def_t
> *x86_cpu_def, const char *name)
> return -1;
> }
>
> +/* It converts all '_' in a feature string option name to '-', to make
> + * feature name to conform property naming rule which uses '-' instead of '_'
> + */
> +static inline void feat2prop(char *s)
> +{
> + char *delimiter = strchr(s, '=');
> + while ((s = strchr(s, '_')) && ((delimiter == NULL) || (s < delimiter)))
> {
> + *s = '-';
> + }
> +}
> +
> /* Parse "+feature,-feature,feature=foo" CPU feature string
> */
> static void cpu_x86_parse_featurestr(X86CPU *cpu, char *features, Error
> **errp)
> @@ -1318,6 +1377,7 @@ static void cpu_x86_parse_featurestr(X86CPU *cpu, char
> *features, Error **errp)
> } else if (featurestr[0] == '-') {
> add_flagname_to_bitmaps(featurestr + 1, minus_features);
> } else if ((val = strchr(featurestr, '='))) {
> + feat2prop(featurestr);
> *val = 0; val++;
> if (!strcmp(featurestr, "family")) {
> object_property_parse(OBJECT(cpu), val, featurestr, errp);
> @@ -1345,9 +1405,9 @@ static void cpu_x86_parse_featurestr(X86CPU *cpu, char
> *features, Error **errp)
> object_property_parse(OBJECT(cpu), num, featurestr, errp);
> } else if (!strcmp(featurestr, "vendor")) {
> object_property_parse(OBJECT(cpu), val, featurestr, errp);
> - } else if (!strcmp(featurestr, "model_id")) {
> - object_property_parse(OBJECT(cpu), val, "model-id", errp);
> - } else if (!strcmp(featurestr, "tsc_freq")) {
> + } else if (!strcmp(featurestr, "model-id")) {
> + object_property_parse(OBJECT(cpu), val, featurestr, errp);
> + } else if (!strcmp(featurestr, "tsc-freq")) {
> int64_t tsc_freq;
> char *err;
> char num[32];
> @@ -1360,7 +1420,7 @@ static void cpu_x86_parse_featurestr(X86CPU *cpu, char
> *features, Error **errp)
> }
> snprintf(num, sizeof(num), "%" PRId64, tsc_freq);
> object_property_parse(OBJECT(cpu), num, "tsc-frequency",
> errp);
> - } else if (!strcmp(featurestr, "hv_spinlocks")) {
> + } else if (!strcmp(featurestr, "hv-spinlocks")) {
> char *err;
> numvalue = strtoul(val, &err, 0);
> if (!*val || *err) {
[snip]
Thanks, split this part off and applied to qom-cpu (modified as below):
https://github.com/afaerber/qemu-cpu/commits/qom-cpu
Andreas
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index f34ba23..697848d 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1307,6 +1307,16 @@ static int cpu_x86_find_by_name(x86_def_t
*x86_cpu_def, c
onst char *name)
return -1;
}
+/* Convert all '_' in a feature string option name to '-', to make feature
+ * name conform to QOM property naming rule, which uses '-' instead of '_'.
+ */
+static inline void feat2prop(char *s)
+{
+ while ((s = strchr(s, '_'))) {
+ *s = '-';
+ }
+}
+
/* Parse "+feature,-feature,feature=foo" CPU feature string
*/
static void cpu_x86_parse_featurestr(X86CPU *cpu, char *features, Error
**errp)
@@ -1329,6 +1339,7 @@ static void cpu_x86_parse_featurestr(X86CPU *cpu,
char *fe
atures, Error **errp)
add_flagname_to_bitmaps(featurestr + 1, minus_features);
} else if ((val = strchr(featurestr, '='))) {
*val = 0; val++;
+ feat2prop(featurestr);
if (!strcmp(featurestr, "family")) {
object_property_parse(OBJECT(cpu), val, featurestr, errp);
} else if (!strcmp(featurestr, "model")) {
@@ -1355,9 +1366,9 @@ static void cpu_x86_parse_featurestr(X86CPU *cpu,
char *fe
atures, Error **errp)
object_property_parse(OBJECT(cpu), num, featurestr, errp);
} else if (!strcmp(featurestr, "vendor")) {
object_property_parse(OBJECT(cpu), val, featurestr, errp);
- } else if (!strcmp(featurestr, "model_id")) {
- object_property_parse(OBJECT(cpu), val, "model-id", errp);
- } else if (!strcmp(featurestr, "tsc_freq")) {
+ } else if (!strcmp(featurestr, "model-id")) {
+ object_property_parse(OBJECT(cpu), val, featurestr, errp);
+ } else if (!strcmp(featurestr, "tsc-freq")) {
int64_t tsc_freq;
char *err;
char num[32];
@@ -1370,7 +1381,7 @@ static void cpu_x86_parse_featurestr(X86CPU *cpu,
char *features, Error **errp)
}
snprintf(num, sizeof(num), "%" PRId64, tsc_freq);
object_property_parse(OBJECT(cpu), num,
"tsc-frequency", errp);
- } else if (!strcmp(featurestr, "hv_spinlocks")) {
+ } else if (!strcmp(featurestr, "hv-spinlocks")) {
char *err;
numvalue = strtoul(val, &err, 0);
if (!*val || *err) {
--
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