Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+.TH pcilib 7 "25 February 2024" "pciutils-3.11.1" "The PCI Utilities"
+.SH NAME
+pcilib \- a library for accessing PCI devices
+
+.SH DESCRIPTION
+
+The PCI library (also known as \fIpcilib\fP and \fIlibpci\fP) is a portable library
+for accessing PCI devices and their configuration space.
+
+.SH ACCESS METHODS
+
+.PP
+The library supports a variety of methods to access the configuration space
+on different operating systems. By default, the first matching method in this
+list is used, but you can specify override the decision (see the \fB-A\fP switch
+of \fIlspci\fP).
+
+.TP
+.B linux-sysfs
+The
+.B /sys
+filesystem on Linux 2.6 and newer. The standard header of the config space is available
+to all users, the rest only to root. Supports extended configuration space, PCI domains,
+VPD (from Linux 2.6.26), physical slots (also since Linux 2.6.26) and information on attached
+kernel drivers.
+.TP
+.B linux-proc
+The
+.B /proc/bus/pci
+interface supported by Linux 2.1 and newer. The standard header of the config space is available
+to all users, the rest only to root.
+.TP
+.B intel-conf1
+Direct hardware access via Intel configuration mechanism 1. Available on i386 and compatibles
+on Linux, Solaris/x86, GNU Hurd, Windows, BeOS and Haiku. Requires root privileges.
+.TP
+.B intel-conf2
+Direct hardware access via Intel configuration mechanism 2. Available on i386 and compatibles
+on Linux, Solaris/x86, GNU Hurd, Windows, BeOS and Haiku. Requires root privileges. Warning: This method
+is able to address only the first 16 devices on any bus and it seems to be very
+unreliable in many cases.
+.TP
+.B mmio-conf1
+Direct hardware access via Intel configuration mechanism 1 via memory-mapped I/O.
+Mostly used on non-i386 platforms. Requires root privileges. Warning: This method
+needs to be properly configured via the
+.B mmio-conf1.addrs
+parameter.
+.TP
+.B mmio-conf1-ext
+Direct hardware access via Extended PCIe Intel configuration mechanism 1 via memory-mapped I/O.
+Mostly used on non-i386 platforms. Requires root privileges. Warning: This method
+needs to be properly configured via the
+.B mmio-conf1-ext.addrs
+parameter.
+.TP
+.B ecam
+Direct hardware access via PCIe ECAM (Enhanced Configuration Access Mechanism).
+Available on all PCIe-compliant hardware. Requires root privileges and access
+to physical memory (on Linux systems disabled CONFIG_STRICT_DEVMEM option). On
+ACPI compatible systems is ECAM mapping read from the MCFG table specified by the
+.B ecam.acpimcfg
+parameter. On EFI compatible systems, ACPI MCFG table can be located in physical
+memory via EFI system table specified by the
+.B ecam.efisystab
+parameter. On FreeBSD/NetBSD systems, physical address of ACPI MCFG table can be
+located by kenv or sysctl interface when the
+.B ecam.bsd
+parameter is not disabled. On x86 BIOS compatible systems, ACPI MCFG table can
+be located in physical memory by scanning x86 BIOS memory when the
+.B ecam.x86bios
+parameter is not disabled. Alternatively ECAM mappings can be specified by the
+.B ecam.addrs
+parameter which takes precedence over ACPI MCFG table. This option is required
+on systems without ACPI and also on systems without EFI or x86 BIOS.
+.TP
+.B fbsd-device
+The
+.B /dev/pci
+device on FreeBSD. Requires root privileges.
+.TP
+.B aix-device
+Access method used on AIX. Requires root privileges.
+.TP
+.B nbsd-libpci
+The
+.B /dev/pci0
+device on NetBSD accessed using the local libpci library.
+.TP
+.B obsd-device
+The
+.B /dev/pci
+device on OpenBSD. Requires root privileges.
+.TP
+.B dump
+Read the contents of configuration registers from a file specified in the
+.B dump.name
+parameter. The format corresponds to the output of \fIlspci\fP \fB-x\fP.
+.TP
+.B darwin
+Access method used on Mac OS X / Darwin. Must be run as root and the system
+must have been booted with debug=0x144.
+.TP
+.B win32-cfgmgr32
+Device listing on Windows systems using the Windows Configuration Manager
+via cfgmgr32.dll system library. This method does not require any special
+Administrator rights or privileges. Configuration Manager provides only basic
+information about devices, assigned resources and device tree structure. There
+is no access to the PCI configuration space but libpci either tries to use
+other access method to access configuration space or it provides read-only
+virtual emulation based on information from Configuration Manager. Other
+access method can be chosen by the
+.B win32.cfgmethod
+parameter. By default the first working one is selected (if any). Starting
+with Windows 8 (NT 6.2) it is not possible to retrieve resources from 32-bit
+application or library on 64-bit system.
+.TP
+.B win32-sysdbg
+Access to the PCI configuration space via NT SysDbg interface on Windows
+systems. Process needs to have Debug privilege, which local Administrators
+have by default. Not available on 64-bit systems and neither on recent 32-bit
+systems. Only devices from the first domain are accessible and only first
+256 bytes of the PCI configuration space is accessible via this method.
+.TP
+.B win32-kldbg
+Access to the PCI configuration space via Kernel Local Debugging Driver
+kldbgdrv.sys. This driver is not part of the Windows system but is part of
+the Microsoft WinDbg tool. It is required to have kldbgdrv.sys driver installed
+in the system32 directory or to have windbg.exe or kd.exe binary in PATH.
+kldbgdrv.sys driver has some restrictions. Process needs to have Debug privilege
+and Windows system has to be booted with Debugging option. Debugging option can
+be enabled by calling (takes effect after next boot):
+.B bcdedit /debug on
+.IP
+Download links for WinDbg 6.12.2.633 standalone installer from Microsoft Windows
+SDK for Windows 7 and .NET Framework 4:
+.br
+amd64: https://download.microsoft.com/download/A/6/A/A6AC035D-DA3F-4F0C-ADA4-37C8E5D34E3D/setup/WinSDKDebuggingTools_amd64/dbg_amd64.msi
+.br
+ia64: https://download.microsoft.com/download/A/6/A/A6AC035D-DA3F-4F0C-ADA4-37C8E5D34E3D/setup/WinSDKDebuggingTools_ia64/dbg_ia64.msi
+.br
+x86: https://download.microsoft.com/download/A/6/A/A6AC035D-DA3F-4F0C-ADA4-37C8E5D34E3D/setup/WinSDKDebuggingTools/dbg_x86.msi
+.IP
+Archived download links of previous WinDbg versions:
+.br
+https://web.archive.org/web/20110221133326/https://www.microsoft.com/whdc/devtools/debugging/installx86.mspx
+.br
+https://web.archive.org/web/20110214012715/https://www.microsoft.com/whdc/devtools/debugging/install64bit.mspx
+.TP
+.B aos-expansion
+Access method used on PowerPC Amiga running OS4+. Access is made through Expansion.library. It offers read and write access to configuration space.
+
+.SH PARAMETERS
+
+.PP
+The library is controlled by several parameters. They should have sensible default
+values, but in case you want to do something unusual (or even something weird),
+you can override them (see the \fB-O\fP switch of \fIlspci\fP).
+
+.SS Parameters of specific access methods
+
+.TP
+.B dump.name
+Name of the bus dump file to read from.
+.TP
+.B fbsd.path
+Path to the FreeBSD PCI device.
+.TP
+.B nbsd.path
+Path to the NetBSD PCI device.
+.TP
+.B obsd.path
+Path to the OpenBSD PCI device.
+.TP
+.B proc.path
+Path to the procfs bus tree.
+.TP
+.B sysfs.path
+Path to the sysfs device tree.
+.TP
+.B devmem.path
+Path to the /dev/mem device.
+.TP
+.B mmio-conf1.addrs
+Physical addresses of memory-mapped I/O ports for Intel configuration mechanism 1.
+CF8 (address) and CFC (data) I/O port addresses are separated by slash and
+multiple addresses for different PCI domains are separated by commas.
+Format: 0xaddr1/0xdata1,0xaddr2/0xdata2,...
+.TP
+.B mmio-conf1-ext.addrs
+Physical addresses of memory-mapped I/O ports for Extended PCIe Intel configuration mechanism 1.
+It has same format as
+.B mmio-conf1.addrs
+parameter.
+.TP
+.B ecam.addrs
+Physical addresses of PCIe ECAM mappings. Each mapping must contains first PCI
+bus number and physical address where mapping starts. And then it may contain
+the length of the mapping, the last PCI bus number and PCI domain number. When
+the last PCI bus number is not provided then it is calculated from the length
+of the mapping or it is assumed 0xff. When length of the mapping is provided
+then it is calculated from the last PCI bus number. And when PCI domain is not
+provided then 0x0 is assumed. All numbers must be supplied in hexadecimal form
+(leading prefix 0x is not required). Multiple mappings are separated by commas.
+Format: [domain:]start_bus[-end_bus]:start_addr[+length],...
+.TP
+.B ecam.acpimcfg
+Path to the ACPI MCFG table. Processed by the
+.BR glob (3)
+function, so it may contain wildcards (*).
+.TP
+.B ecam.efisystab
+Path to the EFI system table.
+.TP
+.B ecam.bsd
+When not set to 0 then use BSD kenv or sysctl to find ACPI MCFG table. Default
+value is 1 on BSD systems.
+.TP
+.B ecam.x86bios
+When not set to 0 then scan x86 BIOS memory for ACPI MCFG table. Default value
+is 1 on x86 systems.
+.TP
+.B win32.cfgmethod
+Config space access method to use with win32-cfgmgr32 on Windows systems. Value
+.I auto
+or an empty string selects the first access method which supports access
+to the config space on Windows. Value
+.I win32-cfgmgr32
+or
+.I none
+only builds a read-only virtual emulated config space with information from the
+Configuration Manager.
+
+.SS Parameters for resolving of ID's via DNS
+.TP
+.B net.domain
+DNS domain containing the ID database.
+.TP
+.B net.cache_name
+Name of the file used for caching of resolved ID's. An initial
+.B ~/
+is expanded to the user's home directory.
+
+.SS Parameters for resolving of ID's via UDEV's HWDB
+.TP
+.B hwdb.disable
+Disable use of HWDB if set to a non-zero value.
+
+.SH SEE ALSO
+
+.BR lspci (8),
+.BR setpci (8),
+.BR pci.ids (5),
+.BR update-pciids (8)
+
+.SH AUTHOR
+The PCI Utilities are maintained by Martin Mares <mj@ucw.cz>.