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/qemu/
H A Dmeson_options.txt42 option('docs', type : 'feature', value : 'auto',
70 option('kvm', type: 'feature', value: 'auto',
72 option('whpx', type: 'feature', value: 'auto',
74 option('hvf', type: 'feature', value: 'auto',
76 option('nvmm', type: 'feature', value: 'auto',
78 option('xen', type: 'feature', value: 'auto',
120 option('avx2', type: 'feature', value: 'auto',
279 option('oss', type: 'feature', value: 'auto',
281 option('pa', type: 'feature', value: 'auto',
325 option('dmg', type: 'feature', value: 'auto',
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/qemu/tests/qemu-iotests/
H A D036.out3 === Image with unknown incompatible feature bit ===
9 … Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): Unknown incompatible feature: …
10 qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): Test feature
12 === Image with multiple incompatible feature bits ===
15 … Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): Unknown incompatible feature: …
16 …not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): Test feature, Unknown incompatible fe…
17 …not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): Test feature, Unknown incompatible fe…
18 …not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): test1, test2, Unknown incompatible fe…
19 qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): test1, test2, test3
20 …uld not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): test2, Unknown incompatible featu…
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H A D03654 echo === Image with unknown incompatible feature bit ===
57 $PYTHON qcow2.py "$TEST_IMG" set-feature-bit incompatible 63
70 echo === Image with multiple incompatible feature bits ===
73 $PYTHON qcow2.py "$TEST_IMG" set-feature-bit incompatible 61
74 $PYTHON qcow2.py "$TEST_IMG" set-feature-bit incompatible 62
75 $PYTHON qcow2.py "$TEST_IMG" set-feature-bit incompatible 63
106 echo === Create image with unknown autoclear feature bit ===
109 $PYTHON qcow2.py "$TEST_IMG" set-feature-bit autoclear 63
/qemu/tests/qapi-schema/
H A Ddoc-good.out56 feature feat3
113 a member feature
132 a feature
134 a member feature
142 a feature
153 a feature
169 a feature
171 another feature
197 a feature
199 another feature
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H A Ddoc-good.txt60 a member feature
109 a feature
112 a member feature
135 a feature
157 a feature
191 a feature
194 another feature
260 a feature
263 another feature
287 a feature
H A Ddoc-good.json65 # @enum-member-feat: a member feature
96 # @variant1-feat: a feature
97 # @member-feat: a member feature
115 # @union-feat1: a feature
133 # @alt-feat: a feature
155 # @cmd-feat1: a feature
156 # @cmd-feat2: another feature
194 # @cmd-feat1: a feature
195 # @cmd-feat2: another feature
211 # @feat3: a feature
H A Dqapi-schema-test.out331 feature feature1
335 feature feature1
338 feature feature1
339 feature feature2
343 feature int
344 feature name
345 feature if
348 feature feature1
352 feature feature1
354 feature feature2
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H A Ddoc-undoc-feature.err1 doc-undoc-feature.json: In command 'foo':
2 doc-undoc-feature.json:9: feature 'undoc' lacks documentation
H A Ddoc-bad-feature.err1 doc-bad-feature.json:7: documented feature 'a' does not exist
H A Dfeatures-duplicate-name.err2 features-duplicate-name.json:1: feature 'foo' collides with feature 'foo'
/qemu/tests/qtest/
H A Darm-cpu-features.c119 static bool resp_get_feature(QDict *resp, const char *feature) in resp_get_feature() argument
126 g_assert(qdict_get(props, feature)); in resp_get_feature()
127 return qdict_get_bool(props, feature); in resp_get_feature()
130 #define assert_has_feature(qts, cpu_type, feature) \ argument
135 g_assert(qdict_get(resp_get_props(_resp), feature)); \
139 #define assert_has_not_feature(qts, cpu_type, feature) \ argument
144 !qdict_get(resp_get_props(_resp), feature)); \
148 #define resp_assert_feature(resp, feature, expected_value) \ argument
155 g_assert(qdict_get(_props, feature)); \
181 assert_feature(qts, cpu_type, feature, true)
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/qemu/hw/vfio/
H A Dmigration.c150 (struct vfio_device_feature_mig_state *)feature->data; in vfio_migration_set_state()
163 feature->argsz = sizeof(buf); in vfio_migration_set_state()
164 feature->flags = in vfio_migration_set_state()
167 if (ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature)) { in vfio_migration_set_state()
328 feature->argsz = sizeof(buf); in vfio_query_stop_copy_size()
329 feature->flags = in vfio_query_stop_copy_size()
332 if (ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature)) { in vfio_query_stop_copy_size()
888 feature->argsz = sizeof(buf); in vfio_migration_query_flags()
890 if (ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature)) { in vfio_migration_query_flags()
905 feature->argsz = sizeof(buf); in vfio_dma_logging_supported()
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H A Dcommon.c942 feature->argsz = sizeof(buf); in vfio_devices_dma_logging_stop()
963 struct vfio_device_feature *feature; in vfio_device_feature_dma_logging_start_create() local
971 if (!feature) { in vfio_device_feature_dma_logging_start_create()
975 feature->argsz = feature_size; in vfio_device_feature_dma_logging_start_create()
991 g_free(feature); in vfio_device_feature_dma_logging_start_create()
1018 return feature; in vfio_device_feature_dma_logging_start_create()
1022 struct vfio_device_feature *feature) in vfio_device_feature_dma_logging_start_destroy() argument
1030 g_free(feature); in vfio_device_feature_dma_logging_start_destroy()
1036 struct vfio_device_feature *feature; in vfio_devices_dma_logging_start() local
1044 if (!feature) { in vfio_devices_dma_logging_start()
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/qemu/gdbstub/
H A Dgdbstub.c54 const GDBFeature *feature; member
421 builder->feature = feature; in gdb_feature_builder_init()
426 feature->xmlname = xmlname; in gdb_feature_builder_init()
427 feature->name = name; in gdb_feature_builder_init()
484 const GDBFeature *feature; in gdb_find_static_feature() local
486 for (feature = gdb_static_features; feature->xmlname; feature++) { in gdb_find_static_feature()
488 return feature; in gdb_find_static_feature()
511 r->feature->name in gdb_get_register_list()
564 .feature = feature in gdb_register_feature()
573 const GDBFeature *feature; in gdb_init_cpu() local
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/qemu/qapi/
H A Dcommon.json76 # @off: The specified feature is disabled
78 # @auto: The PCI BAR for the feature is automatically selected
80 # @bar0: PCI BAR0 is used for the feature
82 # @bar1: PCI BAR1 is used for the feature
84 # @bar2: PCI BAR2 is used for the feature
86 # @bar3: PCI BAR3 is used for the feature
88 # @bar4: PCI BAR4 is used for the feature
90 # @bar5: PCI BAR5 is used for the feature
/qemu/docs/system/
H A Dcpu-models-x86.rst.inc126 CPUs cannot support this feature.
165 Note that not all CPU hardware will support this feature.
183 This is an MSR (Model-Specific Register) feature rather than a CPUID feature,
385 Host passthrough with feature customization:
397 Named CPU models with feature customization:
410 Host passthrough with feature customization::
413 <feature name="vmx" policy="disable"/>
421 Host model with feature customization::
424 <feature name="vmx" policy="disable"/>
434 Named model with feature customization::
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/qemu/docs/system/i386/
H A Dkvm-pv.rst24 ``kvm-msi-ext-dest-id`` feature is enabled by default in x2apic mode with split
42 This feature is deprecated.
46 Note: since Linux v5.10 the feature is deprecated and not enabled by ``KVM``.
71 Enable paravirtualized sched yield feature. Supported since Linux v5.10.
78 Support 'Extended Destination ID' for external interrupts. The feature allows
91 Limit the supported paravirtualized feature set to the exposed features only.
H A Dhyperv.rst10 guest support for such features is added simultaneously with the feature itself.
41 This feature tells guest OS to disable watchdog timeouts as it is running on a
155 the same TSC frequency or support TSC scaling CPU feature.
161 enabled, it provides Enlightened VMCS version 1 feature to the guest. The feature
167 without the feature to find out if enabling it is beneficial.
183 to use paravirtualized AutoEOI feature.
184 Note: enabling this feature on old hardware (without APICv/AVIC support) may
193 When the option is set to 'auto' QEMU will enable the feature only when KVM
233 Enlightened VMCS (``hv-evmcs``) feature to also be enabled.
239 registers ("XMM Fast Hypercall Input"). When the feature is in use, it allows
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/qemu/include/exec/
H A Dgdbstub.h22 GDBFeature *feature; member
50 const GDBFeature *feature, int g_pos);
70 void gdb_feature_builder_init(GDBFeatureBuilder *builder, GDBFeature *feature,
/qemu/target/avr/
H A Dcpu.h175 static inline int avr_feature(CPUAVRState *env, AVRFeature feature) in avr_feature() argument
177 return (env->features & (1U << feature)) != 0; in avr_feature()
180 static inline void set_avr_feature(CPUAVRState *env, int feature) in set_avr_feature() argument
182 env->features |= (1U << feature); in set_avr_feature()
/qemu/docs/interop/
H A Dvhost-user.rst518 require this protocol feature.
526 declare the ``VHOST_F_LOG_ALL`` vhost feature.
583 ``VHOST_USER_PROTOCOL_F_PAGEFAULT`` feature.
1013 protocol feature.
1027 notifications feature flag without the other two.
1087 implementation. Only legal if feature bit
1391 feature has been successfully negotiated.
1545 feature is set by the back-end.
1709 ``VHOST_USER_PROTOCOL_F_DEVICE_STATE`` feature.
1954 "feature-a",
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H A Dnbd.txt54 various features (both as a server exposing the feature, and as a
55 client taking advantage of the feature when present), to make it
57 several cases, the initial release containing a feature may require
59 the operation of that feature.
H A Dparallels.txt152 The above are followed by feature sections or "extensions". The last
155 Each feature section has the following format:
158 The identifier of the feature:
179 The size of the following feature data, in bytes.
192 === Dirty bitmaps feature ===
194 This feature provides a way of storing dirty bitmaps in the image. The fields
213 The dirty bitmap described by this feature extension is stored in a set of
215 saved in the L1 offset table specified by the feature extension. Each L1 table
/qemu/scripts/
H A Dcpu-x86-uarch-abi.py101 for (feature, present) in cpu["model"]["props"].items():
102 if present and feature not in skip:
103 got[feature] = True
/qemu/docs/system/arm/
H A Dcpu-features.rst7 that the feature is implemented, and, conversely, when disabled,
8 indicate that it is not implemented. An example of an Arm CPU feature
19 support the AArch32 CPU feature, which may be enabled by disabling the
24 supporting the feature or only supporting the feature under certain
25 configurations. For example, the ``aarch64`` CPU feature, which, when
26 disabled, enables the optional AArch32 CPU feature, is only supported
28 supports the feature. While ``aarch64`` currently only works with KVM,
84 It looks like this feature is limited to a configuration we do not
107 Only the ``pmu`` CPU feature is available.
109 A note about CPU feature dependencies
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