CONFIG_PCI_MMCONFIG: Support mmconfig PCI config space access

General informations

The Linux kernel configuration item CONFIG_PCI_MMCONFIG has multiple definitions:

Support mmconfig PCI config space access found in arch/x86/Kconfig

The configuration item CONFIG_PCI_MMCONFIG:

• prompt: Support mmconfig PCI config space access
• type: bool
• depends on: ( CONFIG_X86_64 ) && ( CONFIG_PCI && ( CONFIG_ACPI || CONFIG_JAILHOUSE_GUEST )) && ( CONFIG_X86_64 || ( CONFIG_PCI_GOANY || CONFIG_PCI_GOMMCONFIG ))
• defined in arch/x86/Kconfig
• found in Linux kernels: 2.6.24–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.14, 6.15-rc+HEAD

Help text

Add support for accessing the PCI configuration space as a memory mapped area. It is the recommended method if the system supports this (it must have PCI Express and ACPI for it to be available).

In the unlikely case that enabling this configuration option causes problems, the mechanism can be switched off with the 'pci=nommconf' command line parameter.

Say N only if you are sure that your platform does not support this access method or you have problems caused by it.

Say Y otherwise.

found in arch/x86/Kconfig

The configuration item CONFIG_PCI_MMCONFIG:

• prompt:
• type: bool
• depends on: CONFIG_X86_32 && CONFIG_PCI && ( CONFIG_ACPI || CONFIG_SFI ) && ( CONFIG_PCI_GOMMCONFIG || CONFIG_PCI_GOANY )
• defined in arch/x86/Kconfig
• found in Linux kernels: 2.6.24–2.6.39, 3.0–3.19, 4.0–4.16

Help text

(none)

Support mmconfig PCI config space access found in arch/x86_64/Kconfig

The configuration item CONFIG_PCI_MMCONFIG:

• prompt: Support mmconfig PCI config space access
• type: bool
• depends on: CONFIG_PCI && CONFIG_ACPI
• defined in arch/x86_64/Kconfig
• found in Linux kernels: 2.6.5–2.6.23

Help text

(none)

found in arch/i386/Kconfig

The configuration item CONFIG_PCI_MMCONFIG:

• prompt:
• type: bool
• depends on: CONFIG_PCI && CONFIG_ACPI && ( CONFIG_PCI_GOMMCONFIG || CONFIG_PCI_GOANY )
• defined in arch/i386/Kconfig
• found in Linux kernels: 2.6.4–2.6.23

Help text

(none)

Hardware

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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