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/qemu/qapi/
H A Dmigration.json208 # downtime in milliseconds for the guest in last walk of the dirty
677 # @announce-max: Maximum delay (in milliseconds) between packets in
683 # @announce-step: Increase in delay (in milliseconds) between
791 # alias in the incoming migration stream will result in a report,
847 # @announce-max: Maximum delay (in milliseconds) between packets in
853 # @announce-step: Increase in delay (in milliseconds) between
961 # alias in the incoming migration stream will result in a report,
1050 # @announce-max: Maximum delay (in milliseconds) between packets in
1056 # @announce-step: Increase in delay (in milliseconds) between
1160 # alias in the incoming migration stream will result in a report,
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H A Djob.json44 # Indicates the present state of a given job in its lifetime.
62 # @waiting: The job is waiting for other jobs in the transaction to
64 # visible for the last job in a transaction.
71 # @aborting: The job is in the process of being aborted, and will
77 # to false, the job will remain in the query list until it is
80 # @null: The job is in the process of being dismantled. This state
219 # in the PENDING state.
221 # For jobs in a transaction, instructing one job to finalize will
222 # force ALL jobs in the transaction to finalize, so it is only
250 # running, in both directions.
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H A Dmachine.json5 # See the COPYING file in the top-level directory.
78 # @qom-path: path to the CPU object in the QOM tree
388 # in SUSPENDED state. Return an error otherwise.
415 # and in the host should now match.
427 # ticks, the time in the guest and in the host should match.
804 # @size: the size of memory side cache in bytes.
813 # @line: the cache Line size in bytes.
1267 # Actual memory information in bytes.
1285 # (if enabled) memory in bytes.
1836 # @size: memory size in bytes
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H A Dintrospect.json10 # See the COPYING file in the top-level directory.
21 # events are available in this QEMU, and their parameters and results.
25 # what's there), not interface specification. The specification is in
38 # entity in the ABI: command, event, type, ...
85 # name defined in the QAPI schema. Unlike command and event
92 # @features: names of features associated with the entity, in no
144 # @values: the enumeration type's member names, in no particular
166 # @name: the member's name, as defined in the QAPI schema.
168 # @features: names of features associated with the member, in no
220 # @name: the member's name, as defined in the QAPI schema.
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/qemu/target/s390x/tcg/
H A Dvec_string_helper.c78 static int vfae(void *v1, const void *v2, const void *v3, bool in, in vfae() argument
104 if (in) { in vfae()
140 const bool in = extract32(simd_data(desc), 3, 1); \
144 vfae(v1, v2, v3, in, rt, zs, MO_##BITS); \
154 const bool in = extract32(simd_data(desc), 3, 1); \
158 env->cc_op = vfae(v1, v2, v3, in, rt, zs, MO_##BITS); \
346 bool in, bool rt, bool zs, uint8_t es) in vstrc() argument
386 any_match = in ^ any_match; in vstrc()
424 const bool in = extract32(simd_data(desc), 3, 1); \
427 vstrc(v1, v2, v3, v4, in, 0, zs, MO_##BITS); \
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/qemu/docs/
H A Dxbzrle.txt15 be stored on the source. Those pages are stored in a dedicated cache
18 been stored in the cache.
19 A small cache size will result in high cache miss rate.
28 A zero run is represented by its length (in bytes).
29 A non zero run is represented by its length (in bytes) and the new data.
56 ideal for in-line, real-time encoding such as is needed for live-migration.
76 Keeping the hot pages in the cache is effective for decreasing cache
79 detected, XBZRLE will only evict pages in the cache that are older than
91 3. Set the XBZRLE cache size - the cache size is in MBytes and should be a
117 xbzrle overflow: the number of overflows in the decoding which where the delta
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H A Digd-assign.txt9 graphics device in combination with an emulated primary graphics device.
16 or to use this mode in combination with guest-based remote access software,
24 graphics device in the VM[1], as such QEMU does not facilitate any sort
25 of remote graphics to the VM in this mode. A connected physical monitor
29 * IGD must be given address 02.0 on the PCI root bus in the VM
31 * vfio VGA support very likely needs to be enabled in the host kernel
43 For either mode, depending on the host kernel, the i915 driver in the host
50 device to vfio drivers and then managed='no' set in the VM xml to prevent
52 graphics in the host and special options may be required beyond simply
94 with legacy mode, this requires the host to support features introduced in
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/qemu/docs/system/
H A Dgdb.rst7 (the "gdbstub"). This allows you to debug guest code in the same
40 Here are some useful tips in order to use gdb on system code:
57 supports_guest_debug and related hooks in AccelOpsClass).
59 As TCG cannot track all memory accesses in user-mode there is no
68 view of where things are in memory or perhaps more trivially disable
71 Debugging user-space in system emulation
95 the U54 cores are all threads in the second inferior.
98 connect to the first inferior; you can display the CPUs in this
121 0x00000000 in ?? ()
123 Once you've done this, ``info threads`` will show CPUs in
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H A Dmanaged-startup.rst4 In system mode emulation, it's possible to create a VM in a paused
8 state in this paused state depends on the way QEMU was started. It
9 could be in:
13 code loaded by QEMU in the VM's RAM and with incoming migration
18 additionally configure the machine (by hotplugging devices) in runtime before
24 allows pausing QEMU before the initial VM creation, in a "preconfig" state,
/qemu/docs/specs/
H A Dppc-spapr-numa.rst5 NUMA in sPAPR works different than the System Locality Distance
6 Information Table (SLIT) in ACPI. The logic is explained in the LOPAPR
9 of the elements that impacts how QEMU views NUMA in pseries.
15 similar mean performance (or in our context here, distance) relative to
42 specification allows multiple lists to be present in this property,
152 kernel tree). This results in the following distances:
154 * both resources in the first NUMA level: 10
207 NUMA topology in the guest, e.g. this user input:
301 match in 0x2. Repeating the same logic of copying all domains up to
310 between 2 and 3 is 20, i.e. a match in 0x3:
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H A Dppc-spapr-uv-hcalls.rst6 can be placed in a secured region where only an ultravisor running in firmware
34 key stored in the system's TPM. An Ultravisor will use this hcall to
38 The Ultravisor sets up a separate session key with the TPM in advance during
39 host system boot. All sensitive in and out values will be encrypted using the
40 session key. Though the hypervisor will see the in and out buffers in raw form,
58 ``r6``: ``in_size``, size of the in buffer. Must be less than or equal to
66 including the TPM Resource Manager in the linux kernel.
/qemu/docs/devel/
H A Dreplay.rst66 in sequence (e.g. expiring timers and checkpoints in the main thread
71 in a deterministic ping-pong between the two main threads.
76 While the unlocks are usually in the reverse order, this is not
92 order in replay mode must replicate the order of callbacks in record mode.
94 in record mode we save to the log special "checkpoint" event.
98 QEMU in replay mode will try to invoke timers processing in random moment
176 log in replay mode.
178 Disk I/O events are completely deterministic in our model, because
250 it is stored in the queue and processed in icount_account_warp_timer().
288 - 4-byte offset in the output array.
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H A Dreset.rst3 Reset in QEMU: the Resettable interface
7 in ``include/hw/resettable.h``.
49 existing code we need to change if we add more types in future.
58 maintaining a count of in-progress resets; it is crucial to call
119 (if an object is already in reset state when calling
127 Handling reset in a resettable object
148 in reset.
230 while in reset state. For example if a device has an irq input,
289 a reset operation it must be used only in *hold* phase. Using it in *enter* or
293 in reset.
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H A Dqapi-code-gen.rst66 syntax in an EBNF-like notation:
109 Built-in Types
296 A struct type corresponds to a struct in C, and an object in JSON.
300 included in this type. They go first in the C struct.
372 Resulting in these JSON objects::
557 in-band.
559 When a command is executed in-band, its handler runs in the main
660 Resulting in this JSON object::
720 Interfaces so marked may be withdrawn in future releases in accordance
1008 # Duis aute irure dolor in reprehenderit in voluptate velit esse
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H A Dstyle.rst9 Please use the script checkpatch.pl in the scripts directory to check
22 Of course, the most important aspect in any coding style is whitespace.
39 * Tabs are rendered badly in patches, causing off-by-one errors in almost
129 CPUArchState is usually held in a pointer called ``env``.
226 constant on the right, as in:
368 therefore be used only in target-specific code, and in some
419 Reserved namespaces in C and POSIX
515 gcc's printf attribute directive in the prototype.
740 error is reported in the right place (current monitor or stderr), and in
755 handle it. This can be done in various ways.
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H A Datomics.rst4 Atomic operations in QEMU
7 CPUs perform independent memory operations effectively in random order.
14 semaphores are used in QEMU, and should be the default approach to
24 provides macros that fall in three camps:
68 in the order specified by its program".
160 They come in six kinds:
310 acquire operation in the second thread.
352 operation may actually be in a driver that runs in the guest!
397 in the ``pthread_exit``/``pthread_join`` example above.
423 and memory barriers, and the equivalents in QEMU:
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/qemu/pc-bios/
H A Dedk2-licenses.txt6 Redistribution and use in source and binary forms, with or without
78 files in both source form and compiled form.
146 use in the source control commit log.
232 agreement is included below in this document.
266 indicated in or with such Content (for example, in a License.txt file).
271 title, and interest in and to Your Contributions.
385 use in the source control commit log.
459 agreement is included below in this document.
487 indicated in or with such Content. (For example, in a License.txt file.)
492 title, and interest in and to Your Contributions.
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/qemu/tests/bench/
H A Dbenchmark-crypto-hash.c26 uint8_t *in = NULL, *out = NULL; in test_hash_speed() local
33 in = g_new0(uint8_t, opts->chunk_size); in test_hash_speed()
34 memset(in, g_test_rand_int(), opts->chunk_size); in test_hash_speed()
36 iov.iov_base = (char *)in; in test_hash_speed()
56 g_free(in); in test_hash_speed()
/qemu/tests/avocado/acpi-bits/bits-tests/
H A Dtestcpuid.py26 # Redistribution and use in source and binary forms, with or without
11 # * Redistributions in binary form must reproduce the above copyright notice,
12 # this list of conditions and the following disclaimer in the documentation
51 for cpu in bits.cpus():
52 …regs = bits.cpuid_result(*[(r >> shift) & m for r, m in zip(bits.cpuid(cpu, function, index), mask…
61 shifted_masks = bits.cpuid_result(*[m << shift for m in masks])
67 common_values = bits.cpuid_result(*[v[0] & m for v, m in zip(regvalues, common_masks)])
72 for regs in sorted(uniques.iterkeys()):
85 for line in desc[1:]:
/qemu/tests/qemu-iotests/
H A D178.out.raw14 qemu-img: Failed in parsing snapshot param 'snapshot.foo=bar'
42 converted image file size in bytes: 0
58 converted image file size in bytes: 1073741824
65 converted image file size in bytes: 1073741824
75 converted image file size in bytes: 8388608
116 converted image file size in bytes: 0
136 converted image file size in bytes: 1073741824
145 converted image file size in bytes: 1073741824
157 converted image file size in bytes: 8388608
/qemu/tests/decode/
H A Dsucc_named_field.decode2 # See the COPYING.LIB file in the top-level directory.
8 # Ditto, via a format. Here a field in the format
9 # references a named field defined in the insn pattern:
16 # Here the named field is defined in the format and referenced
/qemu/include/crypto/
H A Dakcipher.h76 const void *in, size_t in_len,
96 const void *in, size_t in_len,
116 const void *in, size_t in_len,
136 const void *in, size_t in_len,
/qemu/docs/system/devices/
H A Dnet.rst11 guest instances running in another QEMU process (e.g. by using the
25 and copy the script ``qemu-ifup`` in ``/etc`` and configure properly
26 ``sudo`` so that the command ``ifconfig`` contained in ``qemu-ifup`` can
37 TAP-Win32. But it is not included in standard QEMU for Windows, so you
58 configure the network in the QEMU VM. The DHCP server assign addresses
62 the address 10.0.2.2 and verify that you got an address in the range
65 Note that ICMP traffic in general does not work with user mode
69 host admin has to set the ping_group_range in order to grant access to
74 When using the built-in TFTP server, the router is also the TFTP server.
98 QEMU instances. See the description of the ``-netdev socket`` option in
/qemu/qga/
H A Dqapi-schema.json126 # of 1970-01-01 in UTC.
128 # Returns: Time in nanoseconds.
242 # Close an open file in the guest
306 # Write to an open file in the guest.
547 # in this order:
576 # in this order:
585 # in doing so can result in a suspended guest that QEMU will not be
620 # in doing so can result in a suspended guest that QEMU will not be
1315 # Execute a command in the guest
1738 # @cpu: CPU index in guest OS
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/qemu/docs/interop/
H A Dqed_spec.txt19 uint32_t cluster_size; /* in bytes */
20 uint32_t table_size; /* for L1 and L2 tables, in clusters */
21 uint32_t header_size; /* in clusters */
27 uint64_t l1_table_offset; /* in bytes */
28 uint64_t image_size; /* total logical image size, in bytes */
31 uint32_t backing_filename_offset; /* in bytes from start of header */
32 uint32_t backing_filename_size; /* in bytes */
36 * ''cluster_size'' must be a power of 2 in range [2^12, 2^26].
37 * ''table_size'' must be a power of 2 in range [1, 16].
43 * ''l1_table_offset'' is the offset of the first byte of the L1 table in the image file and must be…
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