87e6ed5670
UUIDs (GUIDs) are widely used in VMBus-related stuff, so a dedicated property type becomes helpful. The property accepts a string-formatted UUID or a special keyword "auto" meaning a randomly generated UUID; the latter is also the default when the property is not given a value explicitly. Signed-off-by: Roman Kagan <rkagan@virtuozzo.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
322 lines
15 KiB
C
322 lines
15 KiB
C
#ifndef QEMU_QDEV_PROPERTIES_H
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#define QEMU_QDEV_PROPERTIES_H
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#include "hw/qdev-core.h"
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/*** qdev-properties.c ***/
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extern const PropertyInfo qdev_prop_bit;
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extern const PropertyInfo qdev_prop_bit64;
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extern const PropertyInfo qdev_prop_bool;
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extern const PropertyInfo qdev_prop_uint8;
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extern const PropertyInfo qdev_prop_uint16;
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extern const PropertyInfo qdev_prop_uint32;
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extern const PropertyInfo qdev_prop_int32;
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extern const PropertyInfo qdev_prop_uint64;
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extern const PropertyInfo qdev_prop_int64;
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extern const PropertyInfo qdev_prop_size;
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extern const PropertyInfo qdev_prop_string;
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extern const PropertyInfo qdev_prop_chr;
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extern const PropertyInfo qdev_prop_ptr;
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extern const PropertyInfo qdev_prop_macaddr;
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extern const PropertyInfo qdev_prop_on_off_auto;
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extern const PropertyInfo qdev_prop_losttickpolicy;
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extern const PropertyInfo qdev_prop_blockdev_on_error;
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extern const PropertyInfo qdev_prop_bios_chs_trans;
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extern const PropertyInfo qdev_prop_fdc_drive_type;
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extern const PropertyInfo qdev_prop_drive;
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extern const PropertyInfo qdev_prop_netdev;
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extern const PropertyInfo qdev_prop_vlan;
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extern const PropertyInfo qdev_prop_pci_devfn;
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extern const PropertyInfo qdev_prop_blocksize;
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extern const PropertyInfo qdev_prop_pci_host_devaddr;
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extern const PropertyInfo qdev_prop_uuid;
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extern const PropertyInfo qdev_prop_arraylen;
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extern const PropertyInfo qdev_prop_link;
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#define DEFINE_PROP(_name, _state, _field, _prop, _type) { \
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.name = (_name), \
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.info = &(_prop), \
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.offset = offsetof(_state, _field) \
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+ type_check(_type, typeof_field(_state, _field)), \
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}
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#define DEFINE_PROP_SIGNED(_name, _state, _field, _defval, _prop, _type) { \
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.name = (_name), \
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.info = &(_prop), \
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.offset = offsetof(_state, _field) \
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+ type_check(_type,typeof_field(_state, _field)), \
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.set_default = true, \
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.defval.i = (_type)_defval, \
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}
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#define DEFINE_PROP_SIGNED_NODEFAULT(_name, _state, _field, _prop, _type) { \
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.name = (_name), \
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.info = &(_prop), \
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.offset = offsetof(_state, _field) \
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+ type_check(_type, typeof_field(_state, _field)), \
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}
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#define DEFINE_PROP_BIT(_name, _state, _field, _bit, _defval) { \
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.name = (_name), \
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.info = &(qdev_prop_bit), \
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.bitnr = (_bit), \
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.offset = offsetof(_state, _field) \
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+ type_check(uint32_t,typeof_field(_state, _field)), \
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.set_default = true, \
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.defval.u = (bool)_defval, \
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}
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#define DEFINE_PROP_UNSIGNED(_name, _state, _field, _defval, _prop, _type) { \
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.name = (_name), \
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.info = &(_prop), \
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.offset = offsetof(_state, _field) \
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+ type_check(_type, typeof_field(_state, _field)), \
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.set_default = true, \
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.defval.u = (_type)_defval, \
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}
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#define DEFINE_PROP_UNSIGNED_NODEFAULT(_name, _state, _field, _prop, _type) { \
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.name = (_name), \
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.info = &(_prop), \
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.offset = offsetof(_state, _field) \
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+ type_check(_type, typeof_field(_state, _field)), \
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}
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#define DEFINE_PROP_BIT64(_name, _state, _field, _bit, _defval) { \
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.name = (_name), \
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.info = &(qdev_prop_bit64), \
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.bitnr = (_bit), \
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.offset = offsetof(_state, _field) \
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+ type_check(uint64_t, typeof_field(_state, _field)), \
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.set_default = true, \
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.defval.u = (bool)_defval, \
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}
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#define DEFINE_PROP_BOOL(_name, _state, _field, _defval) { \
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.name = (_name), \
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.info = &(qdev_prop_bool), \
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.offset = offsetof(_state, _field) \
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+ type_check(bool, typeof_field(_state, _field)), \
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.set_default = true, \
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.defval.u = (bool)_defval, \
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}
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#define PROP_ARRAY_LEN_PREFIX "len-"
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/**
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* DEFINE_PROP_ARRAY:
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* @_name: name of the array
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* @_state: name of the device state structure type
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* @_field: uint32_t field in @_state to hold the array length
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* @_arrayfield: field in @_state (of type '@_arraytype *') which
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* will point to the array
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* @_arrayprop: PropertyInfo defining what property the array elements have
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* @_arraytype: C type of the array elements
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*
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* Define device properties for a variable-length array _name. A
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* static property "len-arrayname" is defined. When the device creator
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* sets this property to the desired length of array, further dynamic
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* properties "arrayname[0]", "arrayname[1]", ... are defined so the
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* device creator can set the array element values. Setting the
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* "len-arrayname" property more than once is an error.
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*
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* When the array length is set, the @_field member of the device
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* struct is set to the array length, and @_arrayfield is set to point
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* to (zero-initialised) memory allocated for the array. For a zero
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* length array, @_field will be set to 0 and @_arrayfield to NULL.
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* It is the responsibility of the device deinit code to free the
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* @_arrayfield memory.
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*/
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#define DEFINE_PROP_ARRAY(_name, _state, _field, \
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_arrayfield, _arrayprop, _arraytype) { \
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.name = (PROP_ARRAY_LEN_PREFIX _name), \
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.info = &(qdev_prop_arraylen), \
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.set_default = true, \
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.defval.u = 0, \
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.offset = offsetof(_state, _field) \
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+ type_check(uint32_t, typeof_field(_state, _field)), \
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.arrayinfo = &(_arrayprop), \
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.arrayfieldsize = sizeof(_arraytype), \
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.arrayoffset = offsetof(_state, _arrayfield), \
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}
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#define DEFINE_PROP_LINK(_name, _state, _field, _type, _ptr_type) { \
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.name = (_name), \
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.info = &(qdev_prop_link), \
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.offset = offsetof(_state, _field) \
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+ type_check(_ptr_type, typeof_field(_state, _field)), \
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.link_type = _type, \
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}
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#define DEFINE_PROP_UINT8(_n, _s, _f, _d) \
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DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint8, uint8_t)
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#define DEFINE_PROP_UINT16(_n, _s, _f, _d) \
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DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint16, uint16_t)
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#define DEFINE_PROP_UINT32(_n, _s, _f, _d) \
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DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint32, uint32_t)
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#define DEFINE_PROP_INT32(_n, _s, _f, _d) \
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DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_int32, int32_t)
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#define DEFINE_PROP_UINT64(_n, _s, _f, _d) \
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DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint64, uint64_t)
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#define DEFINE_PROP_INT64(_n, _s, _f, _d) \
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DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_int64, int64_t)
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#define DEFINE_PROP_SIZE(_n, _s, _f, _d) \
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DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_size, uint64_t)
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#define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d) \
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DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_pci_devfn, int32_t)
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/*
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* Please avoid pointer properties. If you must use them, you must
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* cover them in their device's class init function as follows:
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*
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* - If the property must be set, the device cannot be used with
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* device_add, so add code like this:
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* |* Reason: pointer property "NAME-OF-YOUR-PROP" *|
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* DeviceClass *dc = DEVICE_CLASS(class);
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* dc->user_creatable = false;
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*
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* - If the property may safely remain null, document it like this:
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* |*
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* * Note: pointer property "interrupt_vector" may remain null, thus
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* * no need for dc->user_creatable = false;
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* *|
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*/
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#define DEFINE_PROP_PTR(_n, _s, _f) \
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DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*)
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#define DEFINE_PROP_CHR(_n, _s, _f) \
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DEFINE_PROP(_n, _s, _f, qdev_prop_chr, CharBackend)
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#define DEFINE_PROP_STRING(_n, _s, _f) \
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DEFINE_PROP(_n, _s, _f, qdev_prop_string, char*)
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#define DEFINE_PROP_NETDEV(_n, _s, _f) \
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DEFINE_PROP(_n, _s, _f, qdev_prop_netdev, NICPeers)
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#define DEFINE_PROP_VLAN(_n, _s, _f) \
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DEFINE_PROP(_n, _s, _f, qdev_prop_vlan, NICPeers)
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#define DEFINE_PROP_DRIVE(_n, _s, _f) \
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DEFINE_PROP(_n, _s, _f, qdev_prop_drive, BlockBackend *)
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#define DEFINE_PROP_MACADDR(_n, _s, _f) \
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DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, MACAddr)
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#define DEFINE_PROP_ON_OFF_AUTO(_n, _s, _f, _d) \
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DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_on_off_auto, OnOffAuto)
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#define DEFINE_PROP_LOSTTICKPOLICY(_n, _s, _f, _d) \
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DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_losttickpolicy, \
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LostTickPolicy)
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#define DEFINE_PROP_BLOCKDEV_ON_ERROR(_n, _s, _f, _d) \
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DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_blockdev_on_error, \
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BlockdevOnError)
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#define DEFINE_PROP_BIOS_CHS_TRANS(_n, _s, _f, _d) \
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DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_bios_chs_trans, int)
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#define DEFINE_PROP_BLOCKSIZE(_n, _s, _f) \
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DEFINE_PROP_UNSIGNED(_n, _s, _f, 0, qdev_prop_blocksize, uint16_t)
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#define DEFINE_PROP_PCI_HOST_DEVADDR(_n, _s, _f) \
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DEFINE_PROP(_n, _s, _f, qdev_prop_pci_host_devaddr, PCIHostDeviceAddress)
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#define DEFINE_PROP_MEMORY_REGION(_n, _s, _f) \
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DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, MemoryRegion *)
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#define DEFINE_PROP_UUID(_name, _state, _field) { \
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.name = (_name), \
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.info = &qdev_prop_uuid, \
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.offset = offsetof(_state, _field) \
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+ type_check(QemuUUID, typeof_field(_state, _field)), \
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.set_default = true, \
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}
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#define DEFINE_PROP_END_OF_LIST() \
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{}
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/* Set properties between creation and init. */
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void *qdev_get_prop_ptr(DeviceState *dev, Property *prop);
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void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value);
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void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value);
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void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value);
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void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value);
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void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value);
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void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value);
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void qdev_prop_set_string(DeviceState *dev, const char *name, const char *value);
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void qdev_prop_set_chr(DeviceState *dev, const char *name, Chardev *value);
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void qdev_prop_set_netdev(DeviceState *dev, const char *name, NetClientState *value);
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void qdev_prop_set_drive(DeviceState *dev, const char *name,
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BlockBackend *value, Error **errp);
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void qdev_prop_set_macaddr(DeviceState *dev, const char *name,
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const uint8_t *value);
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void qdev_prop_set_enum(DeviceState *dev, const char *name, int value);
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/* FIXME: Remove opaque pointer properties. */
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void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value);
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void qdev_prop_register_global(GlobalProperty *prop);
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void qdev_prop_register_global_list(GlobalProperty *props);
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int qdev_prop_check_globals(void);
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void qdev_prop_set_globals(DeviceState *dev);
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void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev,
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Property *prop, const char *value);
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/**
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* register_compat_prop:
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*
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* Register internal (not user-provided) global property, changing the
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* default value of a given property in a device type. This can be used
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* for enabling machine-type compatibility or for enabling
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* accelerator-specific defaults in devices.
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*
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* The property values set using this function must be always valid and
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* never report setter errors, as the property will have
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* GlobalProperty::errp set to &error_abort.
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*
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* User-provided global properties should override internal global
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* properties, so callers of this function should ensure that it is
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* called before user-provided global properties are registered.
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*
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* @driver: Device type to be affected
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* @property: Property whose default value is going to be changed
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* @value: New default value for the property
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*/
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void register_compat_prop(const char *driver, const char *property,
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const char *value);
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/*
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* register_compat_props_array(): using register_compat_prop(), which
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* only registers internal global properties (which has lower priority
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* than user-provided global properties)
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*/
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void register_compat_props_array(GlobalProperty *prop);
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/**
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* qdev_property_add_static:
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* @dev: Device to add the property to.
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* @prop: The qdev property definition.
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* @errp: location to store error information.
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*
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* Add a static QOM property to @dev for qdev property @prop.
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* On error, store error in @errp. Static properties access data in a struct.
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* The type of the QOM property is derived from prop->info.
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*/
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void qdev_property_add_static(DeviceState *dev, Property *prop, Error **errp);
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void qdev_alias_all_properties(DeviceState *target, Object *source);
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/**
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* @qdev_prop_set_after_realize:
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* @dev: device
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* @name: name of property
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* @errp: indirect pointer to Error to be set
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* Set the Error object to report that an attempt was made to set a property
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* on a device after it has already been realized. This is a utility function
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* which allows property-setter functions to easily report the error in
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* a friendly format identifying both the device and the property.
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*/
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void qdev_prop_set_after_realize(DeviceState *dev, const char *name,
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Error **errp);
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/**
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* qdev_prop_allow_set_link_before_realize:
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*
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* Set the #Error object if an attempt is made to set the link after realize.
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* This function should be used as the check() argument to
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* object_property_add_link().
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*/
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void qdev_prop_allow_set_link_before_realize(const Object *obj,
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const char *name,
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Object *val, Error **errp);
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#endif
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