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/qemu/scripts/simplebench/
H A Dsimplebench.py33 """Benchmark one test-case
35 test_func -- benchmarking function with prototype
37 arguments and on success returns dict with 'seconds' or
41 info. On failure test_func should return {'error': str}.
43 test_env -- test environment - opaque first argument for test_func
44 test_case -- test case - opaque second argument for test_func
45 count -- how many times to call test_func, to calculate average
46 initial_run -- do initial run of test_func, which don't get into result
47 slow_limit -- stop at slow run (that exceedes the slow_limit by seconds).
49 drop_caches -- drop caches before each run
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/qemu/include/system/
H A Dblock-backend-common.h4 * Copyright (C) 2014-2016 Red Hat, Inc.
10 * or later. See the COPYING.LIB file in the top-level directory.
17 #include "block/throttle-groups.h"
34 * See include/block/block-global-state.h for more information about
39 * Runs when virtual media changed (monitor commands eject, change)
40 * Argument load is true on load and false on eject.
47 * Runs when an eject request is issued from the monitor, the tray
63 * Runs when the backend receives a drain request.
67 * Runs when the backend's last drain request ends.
76 * I/O API functions. These functions are thread-safe.
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/qemu/tests/qtest/
H A Dnpcm7xx_rng-test.c21 #include "libqtest-single.h"
77 while (retries-- > 0) { in rng_wait_ready()
87 * Perform a frequency (monobit) test, as defined by NIST SP 800-22, on the
88 * sequence in buf and return the P-value. This represents the probability of a
104 * Each 1 counts as 1, each 0 counts as -1. in calc_monobit_p()
105 * s = cp - (8 - cp) = 2 * cp - 8 in calc_monobit_p()
107 sn += 2 * ctpop8(buf[i]) - 8; in calc_monobit_p()
116 * Perform a runs test, as defined by NIST SP 800-22, and return the P-value.
118 * number of runs (i.e. uninterrupted sequences of identical bits) as the
136 for (k = 0; k < nr_bits - 1; k++) { in calc_runs_p()
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/qemu/docs/system/arm/
H A Dfby35.rst4 Facebook has a series of multi-node compute server designs named
6 …semite v3 <https://www.opencompute.org/documents/ocp-yosemite-v3-platform-design-specification-1v1…
8 Yosemite v3.5 is an iteration on this design, and is very similar: there's a
15 …o a chassis. See `here <https://www.opencompute.org/products-chiplets/237/wiwynn-yosemite-v3-serve…
19 runs `OpenBMC <https://github.com/facebook/openbmc>`__, and the BIC runs
23 source code, see the README's for instructions on that. This image uses the
24 "fby35" machine recipe from OpenBMC, and the "yv35-cl" target from OpenBIC.
27 .. code-block:: bash
29 $ wget https://github.com/facebook/openbmc/releases/download/openbmc-e2294ff5d31d/fby35.mtd
30 … $ wget https://github.com/peterdelevoryas/OpenBIC/releases/download/oby35-cl-2022.13.01/Y35BCL.elf
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H A Db-l475e-iot01a.rst1 B-L475E-IOT01A IoT Node (``b-l475e-iot01a``)
4 The B-L475E-IOT01A IoT Node uses the STM32L475VG SoC which is based on
5 ARM Cortex-M4F core. It is part of STMicroelectronics
7 ultra-low power series. The STM32L4x5 chip runs at up to 80 MHz and
8 integrates 128 KiB of SRAM and up to 1MiB of Flash. The B-L475E-IOT01A board
15 Currently B-L475E-IOT01A machines support the following devices:
17 - Cortex-M4F based STM32L4x5 SoC
18 - STM32L4x5 EXTI (Extended interrupts and events controller)
19 - STM32L4x5 SYSCFG (System configuration controller)
20 - STM32L4x5 RCC (Reset and clock control)
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H A Dmps2.rst1 …ards (``mps2-an385``, ``mps2-an386``, ``mps2-an500``, ``mps2-an505``, ``mps2-an511``, ``mps2-an521…
4 These board models use Arm M-profile or R-profile CPUs.
11 details of the board as seen by the guest depend significantly on the
16 FPGA images using M-profile CPUs:
18 ``mps2-an385``
19 Cortex-M3 as documented in Arm Application Note AN385
20 ``mps2-an386``
21 Cortex-M4 as documented in Arm Application Note AN386
22 ``mps2-an500``
23 Cortex-M7 as documented in Arm Application Note AN500
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/qemu/.github/workflows/
H A Dlockdown.yml1 # Configuration for Repo Lockdown - https://github.com/dessant/repo-lockdown
5 on:
10 pull-requests: write
14 runs-on: ubuntu-latest
16 - uses: dessant/repo-lockdown@v2
18 pr-comment: |
21 This repository is a read-only mirror of the project's repostories hosted
22 on https://gitlab.com/qemu-project/qemu.git.
23 The project does not process merge requests filed on GitHub.
27 guidelines about contributing on the project website:
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/qemu/include/migration/
H A Dregister.h10 * the COPYING file in the top-level directory.
17 #include "hw/vmstate-if.h"
31 * Saves state section on the source using the latest state format
58 * Initializes the data structures on the source and transmits
59 * first section containing information on the device
72 * Uninitializes the data structures on the source.
127 /* This runs both outside and inside the BQL. */
157 * For example, it is needed for only-postcopy-states, which needs
168 /* This runs outside the BQL in the migration case, and
190 /* This runs outside the BQL! */
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/qemu/include/io/
H A Dchannel-tls.h29 #define TYPE_QIO_CHANNEL_TLS "qio-channel-tls"
39 * technical restriction on which type of master channel is
58 * @errp: pointer to a NULL-initialized error object
71 * @errp: pointer to a NULL-initialized error object
73 * Create a new TLS channel that runs the server side of
76 * is non-NULL, then the client will have to provide
82 * todo any I/O on the channel.
101 * @errp: pointer to a NULL-initialized error object
103 * Create a new TLS channel that runs the client side of
112 * todo any I/O on the channel.
H A Dchannel-websock.h29 #define TYPE_QIO_CHANNEL_WEBSOCK "qio-channel-websock"
45 * technical restriction on which type of master channel is
52 * client for encapsulating VNC for noVNC in-browser client.
74 * Create a new websockets channel that runs the server
79 * todo any I/O on the channel.
/qemu/docs/devel/testing/
H A Dfuzzing.rst5 This document describes the virtual-device fuzzing infrastructure in QEMU and
9 ------
12 fuzzer tracks the code coverage triggered by the input. Based on these
15 To fuzz QEMU, we rely on libfuzzer. Unlike other fuzzers such as AFL, libfuzzer
16 is an *in-process* fuzzer. For the developer, this means that it is their
17 responsibility to ensure that state is reset between fuzzing-runs.
20 --------------------
24 Here, enable-asan and enable-ubsan are optional but they allow us to reliably
25 detect bugs such as out-of-bounds accesses, uses-after-free, double-frees
28 CC=clang-8 CXX=clang++-8 /path/to/configure \
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/qemu/docs/devel/
H A Dmultiple-iothreads.rst5 Copyright (c) 2014-2017 Red Hat Inc.
8 the COPYING file in the top-level directory.
11 This document explains the ``IOThread`` feature and how to write code that runs
15 ---------------------------------
16 QEMU is an event-driven program that can do several things at once using an
21 The default event loop is called the main loop (see ``main-loop.c``). It is
23 ``-object iothread,id=my-iothread``.
30 ------------------------------
32 scalability bottleneck on hosts with many CPUs. Work can be spread across
39 QEMU's code historically was not thread-safe.
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H A Dbuild-system.rst7 system has two stages; first the developer runs the "configure" script
14 - build artifacts outside of QEMU source tree entirely::
22 - build artifacts in a subdir of QEMU source tree::
38 - detect the host architecture
40 - list the targets for which to build emulators; the list of
43 - find the compilers (native and cross) used to build executables,
45 fragments (``config-host.mak``) or a Meson machine file
46 (``config-meson.cross``)
48 - create a virtual environment in which all Python code runs during
51 - invoke Meson in the virtual environment, to perform the actual
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/qemu/ui/
H A Dvnc-enc-zrle.c.inc2 * QEMU VNC display driver: Zlib Run-length Encoding (ZRLE)
11 * See the COPYING file in the top-level directory.
17 * ZRLE_BPP should be 8, 16 or 32 depending on the bits per pixel.
69 #include "vnc-enc-zywrle-template.c"
82 th = MIN(VNC_ZRLE_TILE_HEIGHT, y + h - ty);
88 tw = MIN(VNC_ZRLE_TILE_WIDTH, x + w - tx);
99 VncPalette *palette = &vs->zrle->palette;
101 int runs = 0;
111 *end = ~*(end-1); /* one past the end is different so the while loop ends */
122 runs++;
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/qemu/tests/functional/
H A Dtest_arm_microbit.py3 # SPDX-License-Identifier: GPL-2.0-or-later
7 # A functional test that runs MicroPython on the arm microbit machine.
15 ASSET_MICRO = Asset('https://ozlabs.org/~joel/microbit-micropython.hex',
23 self.vm.add_args('-device', f'loader,file={micropython}')
/qemu/docs/system/i386/
H A Dtdx.rst5 Virtual Machine Extensions (VMX) and Multi-Key Total Memory Encryption (MKTME)
6 with a new kind of virtual machine guest called a Trust Domain (TD). A TD runs
12 -------------
29 device and it actually works as RAM. "-bios" option is chosen to load TDVF.
32 command line to specify and load TDVF is ``-bios OVMF.fd``
35 ---------------------
37 Unlike non-TDX VM, the CPU features (enumerated by CPU or MSR) of a TD are not
38 under full control of VMM. VMM can only configure part of features of a TD on
43 - Attributes:
44 - PKS (bit 30) controls whether Supervisor Protection Keys is exposed to TD,
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/qemu/tests/functional/qemu_test/
H A Ddecorators.py1 # SPDX-License-Identifier: GPL-2.0-or-later
39 'running on an OS (%s) that is not able to run this test' %
52 'not running on one of the required machine(s) "%s"' %
59 failure behaviour, so it can be tracked & re-evaluated
67 @skipFlakyTest("https://gitlab.com/qemu-project/qemu/-/issues/NNN")
77 to execute untrusted commands on the host, or commands
86 'Test runs untrusted code / processes untrusted data')
90 data storage (over around 500MB-1GB mark) on the host,
/qemu/system/
H A Dmain.c4 * Copyright (c) 2003-2020 Fabrice Bellard
26 #include "qemu-main.h"
27 #include "qemu/main-loop.h"
33 * SDL insists on wrapping the main() function with its own implementation on
76 * complete. Replay_mutex lock is acquired on initialization, because it in main()
79 * On MacOS, qemu main event loop runs in a background thread, as main in main()
/qemu/tests/qtest/migration/
H A Dframework.h2 * Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates
3 * based on the vhost-user-test.c that is:
7 * See the COPYING file in the top-level directory.
15 #include <qapi/qapi-types-migration.h>
39 * A hook that runs after the src and dst QEMUs have been
50 * A hook that runs after the migration has finished,
52 * before QEMU has terminated (unless it self-terminated
81 * Before migration starts, we write a 64-bit magic marker
85 * proof that start_address -> MAGIC_OFFSET_BASE has been
90 * is proof that start_address -> MAGIC_OFFSET_BASE
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/qemu/include/hw/arm/
H A Dallwinner-a10.h4 #include "hw/timer/allwinner-a10-pit.h"
5 #include "hw/intc/allwinner-a10-pic.h"
7 #include "hw/sd/allwinner-sdhost.h"
8 #include "hw/ide/ahci-sysbus.h"
9 #include "hw/usb/hcd-ohci.h"
10 #include "hw/usb/hcd-ehci.h"
11 #include "hw/rtc/allwinner-rtc.h"
12 #include "hw/misc/allwinner-a10-ccm.h"
13 #include "hw/misc/allwinner-a10-dramc.h"
14 #include "hw/i2c/allwinner-i2c.h"
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H A Dallwinner-h3.h2 * Allwinner H3 System on Chip emulation
21 * The Allwinner H3 is a System on Chip containing four ARM Cortex-A7
26 * This implementation is based on the following datasheet:
28 * https://linux-sunxi.org/File:Allwinner_H3_Datasheet_V1.2.pdf
30 * The latest datasheet and more info can be found on the Linux Sunxi wiki:
32 * https://linux-sunxi.org/H3
39 #include "hw/timer/allwinner-a10-pit.h"
41 #include "hw/misc/allwinner-h3-ccu.h"
42 #include "hw/misc/allwinner-cpucfg.h"
43 #include "hw/misc/allwinner-h3-dramc.h"
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/qemu/tests/qemu-iotests/tests/
H A Dqsd-jobs4 # Job tests related specifically to qemu-storage-daemon
33 rm -f "$SOCK_DIR/nbd.sock"
48 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT
56 # between runs, particularly around when 'quit' is issued)
57 $QSD --chardev stdio,id=stdio --monitor chardev=stdio \
58 --blockdev node-name=file0,driver=file,filename="$TEST_IMG" \
59 --blockdev node-name=fmt0,driver=qcow2,file=file0 <<EOF \
60 | _filter_qmp | grep -v JOB_STATUS_CHANGE | grep -v BLOCK_JOB_READY
62 {"execute": "block-commit", "arguments": {"device": "fmt0", "job-id": "job0"}}
67 echo "=== Streaming can't get permission on base node ==="
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/qemu/include/qemu/
H A Dtimer.h6 #include "qemu/host-utils.h"
24 * change the virtual machine state, as it runs even if the virtual
29 * The virtual clock only runs during the emulation. It stops
174 * Returns: true if the clock runs in nanoseconds and
187 * in nanoseconds, or -1 if no timer is set to expire.
189 * Returns: time until expiry in nanoseconds or -1
210 * be used from the callback of a timer that is based on @clock.
219 * @type: clock on which to operate
261 * @cb: the callback to call on notification
282 * @timer_list: the timer list to operate on
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/qemu/docs/specs/
H A Dppc-spapr-hcalls.rst5 When used with the ``pseries`` machine type, ``qemu-system-ppc64`` implements
6 a set of hypervisor calls (a.k.a. hcalls) defined in the Linux on Power
11 The subset in LoPAR is selected based on the requirements of Linux as a guest.
23 RTAS stands for Run-Time Abstraction Sercies and is a set of runtime services
49 When the guest runs in "real mode" (in powerpc terminology this means with MMU
54 non-cacheable accesses to any guest physical addresses that the
/qemu/qapi/
H A Dvirtio.json1 # -*- Mode: Python -*-
25 # @x-query-virtio:
37 # .. qmp-example::
39 # -> { "execute": "x-query-virtio" }
40 # <- { "return": [
42 # "name": "virtio-input",
43 # "path": "/machine/peripheral-anon/device[4]/virtio-backend"
46 # "name": "virtio-crypto",
47 # "path": "/machine/peripheral/crypto0/virtio-backend"
50 # "name": "virtio-scsi",
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