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qdev/prop: add drive property. 

Adds a (host) drive property, intended to be used by virtual disk
backend drivers.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
This commit is contained in:
Gerd Hoffmann 2009-07-31 12:25:40 +02:00 committed by Anthony Liguori
parent a8659e90e9
commit 14b41872fd
2 changed files with 36 additions and 0 deletions
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32
hw/qdev-properties.c
View File

@ -1,3 +1,4 @@
#include "sysemu.h"
#include "qdev.h"
void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
@ -141,6 +142,32 @@ PropertyInfo qdev_prop_hex64 = {
.print = print_hex64,
};
/* --- drive --- */
static int parse_drive(DeviceState *dev, Property *prop, const char *str)
{
DriveInfo **ptr = qdev_get_prop_ptr(dev, prop);
*ptr = drive_get_by_id(str);
if (*ptr == NULL)
return -1;
return 0;
}
static int print_drive(DeviceState *dev, Property *prop, char *dest, size_t len)
{
DriveInfo **ptr = qdev_get_prop_ptr(dev, prop);
return snprintf(dest, len, "%s", (*ptr)->id);
}
PropertyInfo qdev_prop_drive = {
.name = "drive",
.type = PROP_TYPE_DRIVE,
.size = sizeof(DriveInfo*),
.parse = parse_drive,
.print = print_drive,
};
/* --- pointer --- */
static int print_ptr(DeviceState *dev, Property *prop, char *dest, size_t len)
@ -325,6 +352,11 @@ void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value)
qdev_prop_set(dev, name, &value, PROP_TYPE_UINT64);
}
void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value)
{
qdev_prop_set(dev, name, &value, PROP_TYPE_DRIVE);
}
void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value)
{
qdev_prop_set(dev, name, &value, PROP_TYPE_PTR);

4
hw/qdev.h
View File

@ -2,6 +2,7 @@
#define QDEV_H
#include "hw.h"
#include "sysemu.h"
#include "sys-queue.h"
#include "qemu-option.h"
@ -63,6 +64,7 @@ enum PropertyType {
PROP_TYPE_UINT64,
PROP_TYPE_TADDR,
PROP_TYPE_MACADDR,
PROP_TYPE_DRIVE,
PROP_TYPE_PTR,
};
@ -155,6 +157,7 @@ extern PropertyInfo qdev_prop_hex32;
extern PropertyInfo qdev_prop_hex64;
extern PropertyInfo qdev_prop_ptr;
extern PropertyInfo qdev_prop_macaddr;
extern PropertyInfo qdev_prop_drive;
extern PropertyInfo qdev_prop_pci_devfn;
/* Set properties between creation and init. */
@ -164,6 +167,7 @@ void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyT
void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value);
void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value);
void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value);
void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value);
/* FIXME: Remove opaque pointer properties. */
void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value);
void qdev_prop_set_defaults(DeviceState *dev, Property *props);