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qdev: Add SIZE type to qdev properties

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This patch adds a 'SIZE' type property to qdev.

Signed-off-by: Ian Molton <ian.molton@collabora.co.uk>
Signed-off-by: Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Message-id: 1375109277-25561-7-git-send-email-imammedo@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Vasilis Liaskovitis 2013-07-29 16:47:56 +02:00 committed by Anthony Liguori
parent b887796217
commit e8cd45c78f
4 changed files with 62 additions and 2 deletions
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55
hw/core/qdev-properties.c
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@ -1135,3 +1135,58 @@ void qdev_prop_set_globals(DeviceState *dev, Error **errp)
class = object_class_get_parent(class);
} while (class);
}
/* --- 64bit unsigned int 'size' type --- */
static void get_size(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
visit_type_size(v, ptr, name, errp);
}
static void set_size(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
visit_type_size(v, ptr, name, errp);
}
static int parse_size(DeviceState *dev, Property *prop, const char *str)
{
uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
Error *errp = NULL;
if (str != NULL) {
parse_option_size(prop->name, str, ptr, &errp);
}
assert_no_error(errp);
return 0;
}
static int print_size(DeviceState *dev, Property *prop, char *dest, size_t len)
{
uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
char suffixes[] = {'T', 'G', 'M', 'K', 'B'};
int i = 0;
uint64_t div;
for (div = (long int)1 << 40; !(*ptr / div) ; div >>= 10) {
i++;
}
return snprintf(dest, len, "%0.03f%c", (double)*ptr/div, suffixes[i]);
}
PropertyInfo qdev_prop_size = {
.name = "size",
.parse = parse_size,
.print = print_size,
.get = get_size,
.set = set_size,
};

3
include/hw/qdev-properties.h
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@ -15,6 +15,7 @@ extern PropertyInfo qdev_prop_uint64;
extern PropertyInfo qdev_prop_hex8;
extern PropertyInfo qdev_prop_hex32;
extern PropertyInfo qdev_prop_hex64;
extern PropertyInfo qdev_prop_size;
extern PropertyInfo qdev_prop_string;
extern PropertyInfo qdev_prop_chr;
extern PropertyInfo qdev_prop_ptr;
@ -116,6 +117,8 @@ extern PropertyInfo qdev_prop_arraylen;
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex32, uint32_t)
#define DEFINE_PROP_HEX64(_n, _s, _f, _d) \
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex64, uint64_t)
#define DEFINE_PROP_SIZE(_n, _s, _f, _d) \
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_size, uint64_t)
#define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d) \
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_pci_devfn, int32_t)

2
include/qemu/option.h
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@ -73,6 +73,8 @@ QEMUOptionParameter *append_option_parameters(QEMUOptionParameter *dest,
QEMUOptionParameter *list);
QEMUOptionParameter *parse_option_parameters(const char *param,
QEMUOptionParameter *list, QEMUOptionParameter *dest);
void parse_option_size(const char *name, const char *value,
uint64_t *ret, Error **errp);
void free_option_parameters(QEMUOptionParameter *list);
void print_option_parameters(QEMUOptionParameter *list);
void print_option_help(QEMUOptionParameter *list);

2
util/qemu-option.c
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@ -173,7 +173,7 @@ static void parse_option_number(const char *name, const char *value,
}
}
static void parse_option_size(const char *name, const char *value,
void parse_option_size(const char *name, const char *value,
uint64_t *ret, Error **errp)
{
char *postfix;