| /openbmc/linux/drivers/tty/serial/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
19 comment "Non-8250 serial port support"
39 messages and warnings and which allows logins in single user mode).
41 Even if you say Y here, the currently visible framebuffer console
67 messages and warnings and which allows logins in single user mode).
69 Even if you say Y here, the currently visible framebuffer console
89 bool "Early console using RISC-V SBI"
95 Support for early debug console using RISC-V SBI. This enables
101 tristate "BCM1xxx on-chip DUART serial support"
107 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
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| /openbmc/linux/tools/power/pm-graph/ |
| H A D | bootgraph.8 | 3 bootgraph \- Kernel boot timing analysis
13 timeline is split into two phases: kernel mode & user mode. kernel mode
15 Once user mode begins, the init process is called, and the init calls
24 Generates output files in subdirectory: boot-yymmdd-HHMMSS
30 \fB-h\fR
33 \fB-v\fR
36 \fB-addlogs\fR
40 \fB-result \fIfile\fR
43 \fB-o \fIname\fR
47 e.g. boot-{hostname}-{date}-{time}
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| /openbmc/qemu/docs/system/i386/ |
| H A D | kvm-pv.rst | 5 -----------
11 -----
17 - ``kvmclock``
18 - ``kvm-nopiodelay``
19 - ``kvm-asyncpf``
20 - ``kvm-steal-time``
21 - ``kvm-pv-eoi``
22 - ``kvmclock-stable-bit``
24 ``kvm-msi-ext-dest-id`` feature is enabled by default in x2apic mode with split
25 irqchip (e.g. "-machine ...,kernel-irqchip=split -cpu ...,x2apic").
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| /openbmc/linux/arch/m68k/ |
| H A D | Kconfig.devices | 1 # SPDX-License-Identifier: GPL-2.0
15 Use the power-on LED on your machine as a load meter. The exact
16 behavior is platform-dependent, but normally the flash frequency is
17 a hyperbolic function of the 5-minute load average.
19 # We have a dedicated heartbeat LED. :-)
25 access to information about the machine you're running on,
102 If you want to use your Amiga's built-in serial port in Linux,
112 machine, say Y here.
119 machine, say Y here.
128 mode). This could be useful if some terminal or printer is connected
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| /openbmc/qemu/docs/system/ |
| H A D | introduction.rst | 7 ---------------------------
9 QEMU's system emulation provides a virtual model of a machine (CPU,
14 .. list-table:: Supported Accelerators
15 :header-rows: 1
17 * - Accelerator
18 - Host OS
19 - Host Architectures
20 * - KVM
21 - Linux
22 - Arm (64 bit only), MIPS, PPC, RISC-V, s390x, x86
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| /openbmc/linux/arch/x86/kernel/ |
| H A D | smp.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * (c) 1998-99, 2000, 2009 Ingo Molnar <mingo@redhat.com>
46 * None of the E1AP-E3AP errata are visible to the user.
53 * None of the A1AP-A3AP errata are visible to the user.
60 * None of 1AP-9AP errata are visible to the normal user,
62 * This is very rare and a non-problem.
64 * 1AP. Linux maps APIC as non-cacheable
69 * 5AP. symmetric IO mode (normal Linux operation) not affected.
70 * 'noapic' mode has vector 0xf filled out properly.
71 * 6AP. 'noapic' mode might be affected - fixed in later steppings
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| /openbmc/linux/include/uapi/linux/ |
| H A D | parport.h | 10 /* Start off with user-visible constants */
12 /* Maximum of 16 ports per machine */
16 #define PARPORT_IRQ_NONE -1
17 #define PARPORT_DMA_NONE -1
18 #define PARPORT_IRQ_AUTO -2
19 #define PARPORT_DMA_AUTO -2
20 #define PARPORT_DMA_NOFIFO -3
21 #define PARPORT_DISABLE -2
22 #define PARPORT_IRQ_PROBEONLY -3
23 #define PARPORT_IOHI_AUTO -1
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| /openbmc/linux/Documentation/devicetree/bindings/riscv/ |
| H A D | extensions.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RISC-V ISA extensions
10 - Paul Walmsley <paul.walmsley@sifive.com>
11 - Palmer Dabbelt <palmer@sifive.com>
12 - Conor Dooley <conor@kernel.org>
15 RISC-V has a large number of extensions, some of which are "standard"
16 extensions, meaning they are ratified by RISC-V International, and others
36 Identifies the specific RISC-V instruction set architecture
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| /openbmc/qemu/python/ |
| H A D | README.rst | 6 then by package (e.g. ``qemu/machine``, ``qemu/qmp``, etc).
17 2. ``pip3 install --user .`` will install these packages to your user's
21 If you append the ``--editable`` or ``-e`` argument to either invocation
22 above, pip will install in "editable" mode. This installs the package as
23 a forwarder ("qemu.egg-link") that points to the source tree. In so
32 install QEMU in editable mode to the current environment.
33 (It is a shortcut for ``pip3 install -e .[devel]``.)
36 <https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/>`_
41 --------------------------------------------
48 https://docs.python.org/3/using/cmdline.html#envvar-PYTHONPATH
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|
| /openbmc/qemu/qapi/ |
| H A D | net.json | 1 # -*- Mode: Python -*-
21 # - If @name is not a valid network device, DeviceNotFound
29 # .. qmp-example::
31 # -> { "execute": "set_link",
33 # <- { "return": {} }
47 # - If @type is not a valid network backend, DeviceNotFound
49 # .. qmp-example::
51 # -> { "execute": "netdev_add",
54 # <- { "return": {} }
57 'allow-preconfig': true }
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| /openbmc/linux/arch/powerpc/include/asm/ |
| H A D | reg.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
6 * number used in the Programming Environments Manual For 32-Bit
17 #include <asm/asm-const.h>
18 #include <asm/feature-fixups.h>
31 #define MSR_SF_LG 63 /* Enable 64 bit mode */
48 #define MSR_ME_LG 12 /* Machine Check Enable */
49 #define MSR_FE0_LG 11 /* Floating Exception mode 0 */
53 #define MSR_FE1_LG 8 /* Floating Exception mode 1 */
58 #define MSR_PX_LG 2 /* Protection Exclusive Mode */
70 #define MSR_SF __MASK(MSR_SF_LG) /* Enable 64 bit mode */
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|
| /openbmc/qemu/docs/devel/ |
| H A D | multi-thread-tcg.rst | 2 Copyright (c) 2015-2020 Linaro Ltd.
5 later. See the COPYING file in the top-level directory.
8 Multi-threaded TCG
11 This document outlines the design for multi-threaded TCG (a.k.a MTTCG)
12 system-mode emulation. user-mode emulation has always mirrored the
15 linux-user emulation.
17 The original system-mode TCG implementation was single threaded and
18 dealt with multiple CPUs with simple round-robin scheduling. This
20 being emulated gained additional cores and per-core performance gains
26 We introduce a new running mode where each vCPU will run on its own
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|
| /openbmc/qemu/docs/ |
| H A D | nvdimm.txt | 7 The current QEMU only implements the persistent memory mode of vNVDIMM
8 device and not the block window mode.
11 -----------
14 backend (i.e. memory-backend-file and memory-backend-ram). A simple
18 -machine pc,nvdimm=on
19 -m $RAM_SIZE,slots=$N,maxmem=$MAX_SIZE
20 -object memory-backend-file,id=mem1,share=on,mem-path=$PATH,size=$NVDIMM_SIZE,readonly=off
21 -device nvdimm,id=nvdimm1,memdev=mem1,unarmed=off
25 - the "nvdimm" machine option enables vNVDIMM feature.
27 - "slots=$N" should be equal to or larger than the total amount of
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|
| /openbmc/linux/scripts/kconfig/ |
| H A D | mconf.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
27 "--------\n"
29 "Features can either be built-in, modularized, or ignored. Parameters\n"
36 " - - are selected by other feature,\n"
43 "through the available options (i.e. Y->N->M->Y).\n"
48 "----------\n"
51 " Submenus are designated by \"--->\", empty ones by \"----\".\n"
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| /openbmc/linux/Documentation/virt/kvm/x86/ |
| H A D | timekeeping.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 Timekeeping Virtualization for X86-Based Architectures
32 information relevant to KVM and hardware-based virtualization.
41 2.1. i8254 - PIT
42 ----------------
46 channels which can be programmed to deliver periodic or one-shot interrupts.
53 The PIT uses I/O ports 0x40 - 0x43. Access to the 16-bit counters is done
59 -------------- ----------------
61 | 1.1932 MHz|---------->| CLOCK OUT | ---------> IRQ 0
63 -------------- | +->| GATE TIMER 0 |
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|
| /openbmc/linux/Documentation/driver-api/usb/ |
| H A D | gadget.rst | 11 This document presents a Linux-USB "Gadget" kernel mode API, for use
17 - Supports USB 2.0, for high speed devices which can stream data at
20 - Handles devices with dozens of endpoints just as well as ones with
21 just two fixed-function ones. Gadget drivers can be written so
24 - Flexible enough to expose more complex USB device capabilities such
28 - USB "On-The-Go" (OTG) support, in conjunction with updates to the
29 Linux-USB host side.
31 - Sharing data structures and API models with the Linux-USB host side
32 API. This helps the OTG support, and looks forward to more-symmetric
36 - Minimalist, so it's easier to support new device controller hardware.
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|
| /openbmc/u-boot/scripts/kconfig/ |
| H A D | mconf.c | 2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
27 "--------\n"
29 "Features can either be built-in, modularized, or ignored. Parameters\n"
36 " - - are selected by other feature,\n"
43 "through the available options (i.e. Y->N->M->Y).\n"
48 "----------\n"
51 " Submenus are designated by \"--->\", empty ones by \"----\".\n"
55 " through all visible items which use that hotkey.\n"
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|
| /openbmc/linux/arch/arm/kernel/ |
| H A D | head.S | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 1994-2002 Russell King
9 * Kernel startup code for all 32-bit CPUs
19 #include <asm/asm-offsets.h>
48 .equ swapper_pg_dir, KERNEL_RAM_VADDR - PG_DIR_SIZE
74 * ---------------------------
77 * are: MMU = off, D-cache = off, I-cache = dont care, r0 = 0,
78 * r1 = machine nr, r2 = atags or dtb pointer.
83 * See linux/arch/arm/tools/mach-types for the complete list of machine
86 * We're trying to keep crap to a minimum; DO NOT add any machine specific
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| /openbmc/linux/Documentation/arch/m68k/ |
| H A D | kernel-options.rst | 9 Author: Roman.Hodek@informatik.uni-erlangen.de (Roman Hodek)
11 Update: jds@kom.auc.dk (Jes Sorensen) and faq@linux-m68k.org (Chris Lawrence)
58 ----------
76 /dev/ram: -> 0x0100 (initial ramdisk)
77 /dev/hda: -> 0x0300 (first IDE disk)
78 /dev/hdb: -> 0x0340 (second IDE disk)
79 /dev/sda: -> 0x0800 (first SCSI disk)
80 /dev/sdb: -> 0x0810 (second SCSI disk)
81 /dev/sdc: -> 0x0820 (third SCSI disk)
82 /dev/sdd: -> 0x0830 (forth SCSI disk)
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| /openbmc/linux/Documentation/filesystems/ |
| H A D | tmpfs.rst | 1 .. SPDX-License-Identifier: GPL-2.0
21 fly using a remount ('mount -o remount ...') of the filesystem. A tmpfs
50 set, the user visible part of tmpfs is not built. But the internal
72 4) And probably a lot more I do not know about :-)
80 oversize your tmpfs instances the machine will deadlock
85 machine with highmem) the number of lowmem RAM pages,
97 use up all the memory on the machine; but enhances the scalability of
101 extended attributes: "df -i"'s IUsed and IUse% increase, IFree decreases.
124 See also Documentation/admin-guide/mm/transhuge.rst, which describes the
150 quota entry for user/group/project id is being accessed - typically the
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| /openbmc/qemu/docs/devel/migration/ |
| H A D | main.rst | 19 machine and being "migrated" to another machine. I.e. being moved to
20 another machine.
24 can take a while to move all state from one machine to another. Live
39 - tcp migration: do the migration using tcp sockets
40 - unix migration: do the migration using unix sockets
41 - exec migration: do the migration using the stdin/stdout through a process.
42 - fd migration: do the migration using a file descriptor that is
44 - file migration: do the migration using a file that is passed to QEMU
52 (see add-fd QMP command documentation). This method allows a
57 - the fdset must contain two file descriptors that are not
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| /openbmc/linux/arch/sparc/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 bool "64-bit kernel" if "$(ARCH)" = "sparc"
10 Say yes to build a 64-bit kernel - formerly known as sparc64
11 Say no to build a 32-bit kernel - formerly known as sparc
157 bool "Symmetric multi-processing support"
163 If you say N here, the kernel will run on uni- and multiprocessor
164 machines, but will use only one CPU of a multiprocessor machine. If
166 uniprocessor machines. On a uniprocessor machine, the kernel
173 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
226 bool "Support for hot-pluggable CPUs"
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|
| /openbmc/linux/drivers/char/ |
| H A D | ppdev.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * This is the code behind /dev/parport* -- it allows a user-space
8 * Copyright (C) 1998-2000, 2002 Tim Waugh <tim@cyberelk.net>
20 * SETPHASE set the IEEE 1284 phase of a particular mode. Not to be
21 * confused with ioctl(fd, SETPHASER, &stun). ;-)
36 * GETMODE gets the current IEEE1284 mode
38 * GETFLAGS gets current (user-visible) flags
39 * SETFLAGS sets current (user-visible) flags
47 * - On error, copy_from_user and copy_to_user do not return -EFAULT,
70 #define PP_VERSION "ppdev: user-space parallel port driver"
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|
| /openbmc/linux/drivers/net/ethernet/sun/ |
| H A D | sunhme.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
38 #define GREG_STAT_ACNTEXP 0x00000004 /* Align-error counter expired */
39 #define GREG_STAT_CCNTEXP 0x00000008 /* CRC-error counter expired */
40 #define GREG_STAT_LCNTEXP 0x00000010 /* Length-error counter expired */
42 #define GREG_STAT_CVCNTEXP 0x00000040 /* Code-violation counter expired */
46 #define GREG_STAT_MAXPKTERR 0x00000400 /* Max-packet size error */
47 #define GREG_STAT_NCNTEXP 0x00000800 /* Normal-collision counter expired */
48 #define GREG_STAT_ECNTEXP 0x00001000 /* Excess-collision counter expired */
49 #define GREG_STAT_LCCNTEXP 0x00002000 /* Late-collision counter expired */
50 #define GREG_STAT_FCNTEXP 0x00004000 /* First-collision counter expired */
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| /openbmc/linux/Documentation/gpu/ |
| H A D | drm-uapi.rst | 9 addition, drivers export device-specific interfaces for use by userspace
10 drivers & device-aware applications through ioctls and sysfs files.
16 Cover generic ioctls and sysfs layout here. We only need high-level
22 .. kernel-doc:: drivers/gpu/drm/drm_ioctl.c
31 .. kernel-doc:: drivers/gpu/drm/drm_auth.c
34 .. kernel-doc:: drivers/gpu/drm/drm_auth.c
37 .. kernel-doc:: include/drm/drm_auth.h
46 .. kernel-doc:: drivers/gpu/drm/drm_lease.c
49 Open-Source Userspace Requirements
57 open-sourced userspace patches, and those patches must be reviewed and ready for
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|