diff options
| author | Yang Weijiang <weijiang.yang@intel.com> | 2022-02-15 14:52:51 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-05-14 12:32:41 +0200 |
| commit | 18c22d7112a76fabeee5022a3bdd9e8c3a37c8d2 (patch) | |
| tree | bab79d5b463a6a8664d4d08629318306d9a34110 /include/hw/qdev-properties.h | |
| parent | 6df39f5e583ca0f67bd934d1327f9ead2e3bd49c (diff) | |
qdev-properties: Add a new macro with bitmask check for uint64_t property
The DEFINE_PROP_UINT64_CHECKMASK maro applies certain mask check agaist
user-supplied property value, reject the value if it violates the bitmask.
Co-developed-by: Like Xu <like.xu@linux.intel.com>
Signed-off-by: Like Xu <like.xu@linux.intel.com>
Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
Message-Id: <20220215195258.29149-2-weijiang.yang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/hw/qdev-properties.h')
| -rw-r--r-- | include/hw/qdev-properties.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/hw/qdev-properties.h b/include/hw/qdev-properties.h index f7925f67d0..e1df08876c 100644 --- a/include/hw/qdev-properties.h +++ b/include/hw/qdev-properties.h @@ -17,6 +17,7 @@ struct Property { const PropertyInfo *info; ptrdiff_t offset; uint8_t bitnr; + uint64_t bitmask; bool set_default; union { int64_t i; @@ -54,6 +55,7 @@ extern const PropertyInfo qdev_prop_uint16; extern const PropertyInfo qdev_prop_uint32; extern const PropertyInfo qdev_prop_int32; extern const PropertyInfo qdev_prop_uint64; +extern const PropertyInfo qdev_prop_uint64_checkmask; extern const PropertyInfo qdev_prop_int64; extern const PropertyInfo qdev_prop_size; extern const PropertyInfo qdev_prop_string; @@ -103,6 +105,16 @@ extern const PropertyInfo qdev_prop_link; .set_default = true, \ .defval.u = (bool)_defval) +/** + * The DEFINE_PROP_UINT64_CHECKMASK macro checks a user-supplied value + * against corresponding bitmask, rejects the value if it violates. + * The default value is set in instance_init(). + */ +#define DEFINE_PROP_UINT64_CHECKMASK(_name, _state, _field, _bitmask) \ + DEFINE_PROP(_name, _state, _field, qdev_prop_uint64_checkmask, uint64_t, \ + .bitmask = (_bitmask), \ + .set_default = false) + #define PROP_ARRAY_LEN_PREFIX "len-" /** |