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
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 provides read-only
-virtual emulation based on information from Configuration Manager. Starting
+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
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
.SH PARAMETERS
.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
projects / pciutils.git / blobdiff