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/qemu/docs/specs/
H A Divshmem-spec.rst5 The Inter-VM shared memory device (ivshmem) is designed to share a
8 shared memory area, it is modeled by QEMU as a PCI device exposing
9 said memory to the guest as a PCI BAR.
11 The device can use a shared memory object on the host directly, or it
42 other, you need BAR0 and BAR1. You will most likely want to write a
92 Before QEMU 2.6.0, the register may read -1 for a short while after
118 If the peer is a revision 0 device without MSI-X capability, its
137 The server listens on a UNIX domain socket.
181 and may be accompanied by a file descriptor via SCM_RIGHTS. Both
216 6. Connection / disconnection notification. This is a peer ID.
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H A Dfsi.rst8 FSI is a point-to-point two wire interface which is capable of supporting
13 FSI allows a service processor access to the internal buses of a host POWER
34 FSI is a bit-based protocol supporting synchronous and DMA-driven accesses
35 of engines in a CFAM.
40 MMIO-mapping of the CFAM address straight onto a sub-region of the OPB
53 CFAM designs offer a lot of flexibility, for instance it is possible for a
55 so complete; it's assumed that each CFAM is attached to a single FSI slave (as
56 a consequence the CFAM subclasses the FSI slave).
74 -append "rootwait console=ttyS4,115200n8 root=PARTLABEL=rofs-a"
110 pdbg is a simple application to allow debugging of the host POWER processors
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/qemu/tests/qemu-iotests/
H A D031.out30 data 'This is a test header extension'
58 data 'This is a test header extension'
62 === Add a backing file and format ===
91 data 'This is a test header extension'
126 data 'This is a test header extension'
159 data 'This is a test header extension'
163 === Add a backing file and format ===
197 data 'This is a test header extension'
H A D290.out3 ### Test 'qemu-io -c discard' on a QCOW2 image without a backing file
5 # Create an image with compat=0.10 without a backing file
17 # Create an image with compat=1.1 without a backing file
30 ### Test 'qemu-io -c discard' on a QCOW2 image with a backing file
32 # Create a backing image and fill it with data
36 # Create an image with compat=0.10 and a backing file
49 # Create an image with compat=1.1 and a backing file
H A D082.out51 backing_file=<str> - File name of a base image
77 backing_file=<str> - File name of a base image
103 backing_file=<str> - File name of a base image
129 backing_file=<str> - File name of a base image
155 backing_file=<str> - File name of a base image
181 backing_file=<str> - File name of a base image
207 backing_file=<str> - File name of a base image
233 backing_file=<str> - File name of a base image
274 backing_file=<str> - File name of a base image
361 backing_file=<str> - File name of a base image
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/qemu/docs/tools/
H A Dvirtfs-proxy-helper.rst13 removed, along with this daemon, in a future version of QEMU!
22 - Running QEMU with root privilege could be a security issue.
27 Intention of adding a new filesystem type is to allow qemu to run
30 Proxy helper (a stand alone binary part of qemu) is invoked with
32 a socket pair or a named socket based on the command line parameter.
58 qemu proxy fs drier. Usually a helper like libvirt will create
75 Run as a normal program. By default program will run in daemon mode
/qemu/
H A Dpythondeps.toml6 # Each group forms a TOML section and each entry in the
7 # section is a TOML key-value list describing a package.
10 # - accepted: accepted versions when using a system package
12 # if a system package is not found; if not specified,
17 # 'sphinx-build' can be used as a bellwether for the
/qemu/docs/devel/
H A Ds390-dasd-ipl.rst19 location ``0x0``. Then the ccw program at ``0x08`` which consists of a read
20 ccw and a tic ccw is automatically executed because of the chain flag from
24 equivalent of a branch/jump/goto instruction for channel programs.
31 process and will contain a larger channel program than IPL1. The point of
32 IPL2 is to find and load either the operating system or a small program that
55 is kicked off by the user initiating a "Load" procedure from the hardware
56 management console. This "Load" procedure crafts a special "Read IPL" ccw in
68 In theory we should merely have to do the following to IPL/boot a guest
69 operating system from a DASD device:
71 1. Place a "Read IPL" ccw into memory location ``0x0`` with chaining bit on.
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H A Dconflict-resolution.rst6 Conflicts in the community can take many forms, from someone having a
21 a real-time medium such as IRC. You could also try to get a third-party (e.g.
22 a mutual friend, and/or someone with background on the issue, but not
35 then do its best to review the incident in a timely manner, and will either
36 seek further information, or will make a determination on next steps.
52 3. A private reprimand and request for a private or public apology
54 4. A public reprimand and request for a public apology
56 5. A public reprimand plus a mandatory cooling off period. The cooling
61 events. The cooling off period is voluntary but may escalate to a
/qemu/hw/net/
H A Dstellaris_enet.c328 return s->conf.macaddr.a[0] | (s->conf.macaddr.a[1] << 8) in stellaris_enet_read()
329 | (s->conf.macaddr.a[2] << 16) in stellaris_enet_read()
330 | ((uint32_t)s->conf.macaddr.a[3] << 24); in stellaris_enet_read()
332 return s->conf.macaddr.a[4] | (s->conf.macaddr.a[5] << 8); in stellaris_enet_read()
414 s->conf.macaddr.a[0] = value; in stellaris_enet_write()
415 s->conf.macaddr.a[1] = value >> 8; in stellaris_enet_write()
416 s->conf.macaddr.a[2] = value >> 16; in stellaris_enet_write()
417 s->conf.macaddr.a[3] = value >> 24; in stellaris_enet_write()
420 s->conf.macaddr.a[4] = value; in stellaris_enet_write()
421 s->conf.macaddr.a[5] = value >> 8; in stellaris_enet_write()
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/qemu/docs/interop/
H A Dvirtio-balloon-stats.rst6 properties via a polling mechanism.
9 This is done by writing a time interval value (in seconds) to the
25 which will return a dictionary containing:
28 doesn't support a particular stat, or if it couldn't be retrieved,
44 a buggy guest can't influence its value. The value is 0 if the guest
52 - As noted above, if a guest doesn't support a particular stat its value
53 will always be -1. However, it's also possible that a guest temporarily
62 statistics request. This means that if a (buggy) guest doesn't ever
66 Here are a few examples. QEMU is started with ``-device virtio-balloon``,
/qemu/tests/tcg/i386/
H A Dtest-mmx.c76 static void compare_state(const reg_state *a, const reg_state *b) in compare_state() argument
80 if (a->mm[i] != b->mm[i]) { in compare_state()
85 if (a->r[i] != b->r[i]) { in compare_state()
90 if (memcmp(&a->xmm[i], &b->xmm[i], 8)) { in compare_state()
91 dump_xmm("xmm", i, &b->xmm[i], a->ff); in compare_state()
95 if (memcmp(&a->mem0[i], &a->mem[i], 16)) { in compare_state()
96 dump_xmm("mem", i, &a->mem[i], a->ff); in compare_state()
99 if (a->flags != b->flags) { in compare_state()
/qemu/qapi/
H A Dsockets.json42 # Captures a socket address or address range in the Internet
78 # Captures a socket address in the local ("Unix socket") namespace.
82 # @abstract: if true, this is a Linux abstract socket address. @path
83 # will be prefixed by a null byte, and optionally padded with null
101 # Captures a socket address in the vsock namespace.
122 # @str: decimal is for file descriptor number, otherwise it's a file
177 # Captures the address of a socket, which could also be a named file
218 # Captures the address of a socket, which could also be a socket file
H A Dmisc.json17 # If the FD associated with @fdname is not a socket, the command will
21 # "@dbus-display" or the name of a character device (e.g. from
57 # Return the name information of a guest.
104 # Returns a list of information about each iothread.
110 # Returns: a list of @IOThreadInfo for each iothread
145 # cause a transition to the "paused" state. (Since 9.0)
206 # Execute a command on the human monitor and return the output.
218 # Returns: the output of the command as a string
249 # Receive a file descriptor via SCM rights and assign it a name
271 # Add a socket that was duplicated to QEMU process with
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/qemu/target/riscv/insn_trans/
H A Dtrans_xventanacondops.c.inc15 * You should have received a copy of the GNU General Public License along with
19 static bool trans_vt_maskc(DisasContext *ctx, arg_r *a)
21 return gen_logic(ctx, a, gen_czero_eqz);
24 static bool trans_vt_maskcn(DisasContext *ctx, arg_r *a)
26 return gen_logic(ctx, a, gen_czero_nez);
/qemu/tests/tcg/mips/include/
H A Dtest_utils_32.h43 uint64_t a; in check_results_32() local
44 memcpy(&a, (b32_result + ii), 8); in check_results_32()
46 printf(" 0x%08lxULL,\n", a); in check_results_32()
49 a, ii); in check_results_32()
H A Dtest_utils_64.h45 uint64_t a; in check_results_64() local
46 memcpy(&a, (b64_result + ii), 8); in check_results_64()
48 printf(" 0x%016llxULL,\n", a); in check_results_64()
51 a, ii); in check_results_64()
/qemu/docs/devel/migration/
H A Dcompatibility.rst18 Let's start with a practical example, we start with:
43 This have to work, and if it doesn't work it is a bug.
93 If we get a device that has a new feature, or change a default value,
113 To create a property for a device, we need to use one of the
117 version. But if we want a different value for a previous version, we
126 Let's see a practical example.
361 --- a/hw/pci/pcie_aer.c
394 diff --git a/hw/pci/pci.c b/hw/pci/pci.c
396 --- a/hw/pci/pci.c
414 --- a/hw/pci/pcie_aer.c
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/qemu/include/hw/loongarch/
H A Dboot.h24 #define EFI_GUID(a, b, c, d...) (efi_guid_t){ { \ argument
25 (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
/qemu/pc-bios/
H A DREADME7 - OpenBIOS (http://www.openbios.org/) is a free (GPL v2) portable
8 firmware implementation. The goal is to implement a 100% IEEE
14 - SLOF (Slimline Open Firmware) is a free IEEE 1275 Open Firmware
19 - VOF (Virtual Open Firmware) is a minimalistic firmware to work with
20 -machine pseries,x-vof=on. When enabled, the firmware acts as a slim shim and
43 run an hypervisor OS or simply a host OS on the "baremetal"
46 - QemuMacDrivers (https://github.com/ozbenh/QemuMacDrivers) is a project to
54 of the OpenSSL project, at git tag "OpenSSL_1_1_1s" (the OpenSSL tag is a
56 bundled as well, at Release 3e plus a subsequent typo fix (commit
73 - npcm7xx_bootrom.bin is a simplified, free (Apache 2.0) boot ROM for Nuvoton
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/qemu/tests/unit/
H A Dtest-vmstate.c334 uint32_t a, b, c, e; member
370 g_assert_cmpint(obj.a, ==, 10); in test_load_v1()
999 TestGTreeInterval *a, *b; in create_first_domain() local
1005 a->low = 0x1000; in create_first_domain()
1006 a->high = 0x1FFF; in create_first_domain()
1053 TestGTreeInterval *a, *b; in match_interval_mapping_node() local
1055 a = (TestGTreeInterval *)key; in match_interval_mapping_node()
1061 assert(a->low == b->low); in match_interval_mapping_node()
1062 assert(a->high == b->high); in match_interval_mapping_node()
1278 a->id = 0x0a; in alloc_container()
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/qemu/docs/system/devices/
H A Dvirtio-snd.rst5 The Virtio sound device is a paravirtualized sound card device.
10 Virtio sound requires a guest Linux kernel built with the
16 Virtio sound implements capture and playback from inside a guest using the
25 …ation is supported: the first one will always be a playback stream, an optional second will always…
42 To specifically add virtualized sound devices, you have to specify a PCI device
/qemu/docs/system/ppc/
H A Dppce500.rst4 QEMU for PPC supports a special ``ppce500`` machine designed for emulation and
28 The ``ppce500`` machine automatically generates a device tree blob ("dtb")
52 it creates a machine with e500v2 core. The following example shows an e6500
63 for loading a payload like an OS kernel (e.g.: Linux), or U-Boot firmware.
78 U-Boot's built-in "bootm" command, hence a legacy uImage format is required in
84 Linux mainline v5.11 release is tested at the time of writing. To build a
109 To build a Linux mainline kernel that can be booted by the ``ppce500`` machine
126 U-Boot mainline v2021.07 release is tested at the time of writing. To build a
144 This is because we only specified a core name to QEMU and it does not have a
146 You can specify a real world SoC device that QEMU has built-in support but all
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/qemu/docs/system/i386/
H A Dxen.rst33 advertised to a Xen guest. If Hyper-V is also enabled, the Xen identification
59 Xen grant tables are the means by which a Xen guest grants access to its
70 The Xen PCI platform device is enabled automatically for a Xen guest. This
71 allows a guest to unplug all emulated devices, in order to use paravirtual
77 To provide a Xen console device, define a character device and then a device
87 by QEMU should automatically work and present a Xen network device to the
94 as a PV block device. Guest bootloaders typically use IDE to load the guest
112 itself, designed to run inside a Xen HVM guest and provide memory management
129 port; it must have a Xen console or it will panic.
131 The example above provides the guest kernel command line after a separator
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/qemu/hw/display/
H A Dcirrus_vga_rop2.h26 #define PUTPIXEL(s, a, c) ROP_OP(s, a, c) argument
28 #define PUTPIXEL(s, a, c) ROP_OP_16(s, a, c) argument
30 #define PUTPIXEL(s, a, c) do { \ argument
31 ROP_OP(s, a, c); \
32 ROP_OP(s, a + 1, (c >> 8)); \
33 ROP_OP(s, a + 2, (c >> 16)); \
36 #define PUTPIXEL(s, a, c) ROP_OP_32(s, a, c) argument

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